bluuebunny/crossref_metadata_2025 huggingface dataset:
Design of Enclosure for Subway Station Foundation Pit in Southward Extension Line of Chengdu Metro Line One
Authors: Zhou Xiao Jun , Wang Jing He , Hu Hong Yun
Published: March 2013

This paper summarizes the design of open-cut subway station in Chengdu Metro line one. The station is built by cut and cover method and divided into three special parts with four different cross-sections used for main line and transfer track. Such retaining techniques as bored piles, steel pipe struts, soil nails, rock-bolts, steel-meshes, shotcrete and anchored steel cables are comprehensively used to maintain the stability of foundation pit. The anti-buoyancy coefficient of the open cut station is also derived and attains the requirement of safety and stability for the foundation pit after the utilization of these enclosure measures. The application of the design and construction technique for the subway station may provide guidance for the building of analogous subway station under similar geological and hydrogeological conditions in Chengdu.
Analysis of Coarse Saline Soil Salt Expansion Characteristics with Different Freeze-Thaw Cycle
Authors: Zhang Qiu Mei , Tang Jin Tao , Yang Xiao Hua
Published: March 2013

Salt expansion deformation of the saline soil is a common form of the roadbed disease in Saline Soil Area. Salt expansion of saline soil refers to volume expansion by the impact of periodic climate changes in nature. Particle distribution characteristics, compaction characteristics, salt composition and salinity and so on are studied to evaluate the basic engineering properties of saline soil in the location of the project. Seven freeze-thaw cycles test and (no) load single-cooling test are designed to clarify the relation between salt expansion and temperature changes, moisture content, overburden pressure. The results provide design and construction experiences for high-grade highway projects in natural coarse saline soil area.
A Research on Methods to Improve the Subgrade Stability in Permafrost Regions
Authors: Deng Ji , Chen Jian Chun , Zhang Zi Ling
Published: March 2013

There are a lot of methods to improve the subgrade stability in permafrost regions. The scope of application and the advantages and disadvantages of the five methods including heat stick, insulation method, sunshade awning, particle improved method and ventiduct subgrade were analyzed. It can provide reference value for subgrade construction and diseases lot maintenance.
Experimental Study on Stiffness and Strength of Ballastless Track Slabs
Authors: Shi Yuan Yuan , Pan Peng , Ouyang Yan
Published: March 2013

CRTS I and CRTS II as well as two-layer two-way pre-tensioned prestressing ballastless track slabs were tested to compare their stiffness and strength. Midspan load-displacement curve was used to analyze the results. Based on the test results, the following conclusions can be obtained: The two-layer two-way pre-tensioned prestressing ballastless track slab has better performances than the other two kinds of ballastless track slabs in terms of both stiffness and strength.
Study on the Prediction Method of Track Maintenance Cycle Based on Track Quality State
Authors: Zhang Zi Ling , Cai Xiao Pei , Deng Ji
Published: March 2013

Due to the impact of train load, temperature force and foundation deformation, high-speed railway track disease becomes more and more serious. The existing track maintenance mode can’t meet the requirement of the modern tack structure. Track quality state and its evaluation ways was analyzed, and a method to predict track maintenance cycle based on the track quality deterioration rule was put forward. The track maintenance cycle could be forecasted scientifically by TQI deterioration rule, which is of great significance to high-speed railway maintenance in the future.
Earthquake Response Analysis and Safety Evaluation of Haokou Gravity Dam
Authors: Yang Fan , Shen Zhen Zhong , Chu Kai Min , Zhao Xi Yao
Published: March 2013

According to the actual engineering conditions of Haokou RCC Gravity Dam, the 3-D FEM model of the typical overflow dam section and its foundation is set up. Using the response spectrum method, the responses of earthquake acceleration, displacement and stress of the dam and their distribution laws were studied under the seismic loading, and the anti-sliding stability of dam is also analyzed. The calculation results show that under the design earthquake condition, the maximum principle stress response of dam body is 2.26MPa, which appears at the dam heel. The safety factor of stability against sliding on the face of the dam foundation is 1.43 and the stability against deep sliding is 3.2. So this dam section can meet the strength and stability requirements of standard, its earthquake-resistant safety could meet the requirements of standard.
Introspection on Anti-Seismic of Rural Housing
Authors: Li Wei Jian , Gong Chang Qing , Ren Xiao Song
Published: March 2013

Collapse and severe damage of rural housing were found to be the main seismic damage of rural housing, which leads to a lot of casualties and loss. The violent earthquakes, such as Wenchuan earthquake and Yushu earthquake caused serious damages and gave lessons to the society for better seismic performance of rural housing. Due to limitation of the fund, technology and information, the rural houses lack of normal design, construction and necessary supervision of the government. The insufficient structural capacity and weak integrity may result in the collapse of bearing members and roof or truss under disaster-causing action. The typical damage of rural housing is presented and analyzed for demonstration. Some suggestions to effectively enhance the seismic performance is hence given. From the macroscopic view, publicity for more seismic knowledge should be proceeded and the complete supervision system should be improved. And the technological measure is stressed for better collapse resistant capacity by designing reasonable structural system and reliable connection.
Optimal Analysis of High-Rise Building Facade Shape Based on Frequent Earthquake Response
Authors: Zhang Shuo Ying , Suo Si
Published: March 2013

Transfer Matrix Method was used to calculate the frequent earthquake responses of high-rise building with different facade shapes. At the premise of constant lateral rigid and same bottom storey mass and supposing that the facade shape variability is simulated by the change of storey mass, the relationship between the maximum value of seismic response and the structure total mass were obtained. Results show that up concave shapes are more optimal than down concaves, pyramid and homogeneous shape as long as the structure deformation being within a reasonable range. If the building height is the most seeking aspect of the design, an up concave shape should be adopted and the building bottom size can be amplified according to the required architecture scale. On the other hand, up concave shapes can’t adapt to a rather wide range of total mass. If the construction field is limited and the architecture scale must meet the requirement, the homogeneous shape should be adopted.
Seismic Analysis of a Masonry Structure Retrofitting
Authors: Yu Jing Hai , Zhao Shan Shan , Yu Ning Ning
Published: March 2013

According to the current seismic code, we model one project in PKPM, analysis the seismic resistance of the masonry structure with rigidity and flexibility floor, and study the earthquake shear and seismic capacity compared before and after such structural load changes and retrofitting. And the analysis conclusion can provide the reference of seismic design of such structures.
Seismic and Collapse Resistant Capacity of New Light Quality Concrete Bearing Masonry
Authors: Yu Jing Hai , Xu Hong Mao , Yu Ning Ning
Published: March 2013

Abstract: Based on the experimental investigation of quasi-static test of 5 AAC block walls and 1 clay brick wall, the hysteretic behaviors were analyzed on the basis of the experiments. The collapse resistant capacity of walls which were used two different materials was compared. It was shown that the seismic and collapse resistant capacity of autoclaved aerated concrete was improved obviously and reached the level of clay brick wall basically, which was added constructional middle column.
Element Bearing Ratio Based Integral Safety Evaluation of Penstocks
Authors: Wang Jian , Zhang Wei , Zhang Jin , Wu Wen Long
Published: March 2013

Though it had been employed for limit analysis and integral safety assessment of pressure pipe and vessel, most of the elastic modulus adjustment procedures were applicable to simple structures because their load multiplier was mainly determined by stress. In this paper, a series of element bearing ratio (EBR) based load multiplier algorithms are given, in which the influence of both stress and material on limit load are included. The EBR based load multiplier algorithms are investigated, and two efficient algorithms are suggested. Then the two algorithms combined with the elastic modulus adjustment procedure of elastic modulus reduction method are applied to limit analysis and integral safety assessment of penstocks.
Deterioration of Concrete due to Acid Rain Attack in North China
Authors: Wang Kai , Yu Luo Ning , Chen Meng Cheng
Published: March 2013

The deterioration of concrete under the acid rain and freeze-thaw co-existed environment was investigated in laboratory. The results show that the deterioration caused by acid rain attack is aggravated by freeze-thaw damage in north China and increases with the increase in acidity of acid rain solution and mechanical loading. The SEM results demonstrate that the aggravation results from the cooperation of freeze-thaw damage which accelerates the expansion of the micro-cracks of concrete so that the penetration of erosion media in acid rain solution into the internal pores of concrete is intensified.
Research on Test of Fracture Toughness and Fracture Criterion of Crack of Mixed Mode I and II of Steel Fiber Concrete
Authors: Zhang Hong Da , Xu Xin Sheng
Published: March 2013

Steel fiber concrete is a new-type composite material of excellent property with broad application formed by common concrete mixed with disorderly oriented short steel fiber. Main action of steel fiber is to prevent broadening of interior micro crack in concrete and restrict occurrence and growth of macro crack. Based on basic theory of concrete fracture mechanics, this treatise adopts four-point shearing sampling material to conduct experimental research, having obtained critical fracture curve of crack of composite mode I, II of steel fiber concrete, setting up experimental formula of fracture criterion, probing into difference between fracture toughness of steel fiber concrete and that of common concrete, and discussing application of maximum tension stress theory in steel fiber concrete.
Rheological Properties of Asphalt Binder Modified with Chemical Warm Asphalt Additive
Authors: Abdullah Mohd Ezree , Zamhari Kemas Ahmad , Shamshudin Mustafa Kamal , Mohd Rosli Hainin , Idham Mohd Khairul
Published: March 2013

Going towards sustainable pavement construction, asphalt industries constantly give their effort to implement Warm Mix Asphalt (WMA) by adding the chemical warm asphalt additive (CWAA). This can lower its energy consumption and pollution by reducing the mixing and compaction temperatures of the asphalt mixture without affecting its properties. Several studies have been conducted evaluating the properties of the WMA, however, little documented research on the rheology of the binders containing CWAA is available especially when dealing the sources of binders. In this paper, the tests for rheology characteristics of the Malaysian asphalt binder containing CWAA were conducted with rotational viscosity and for dynamic mechanical analysis with dynamic shear rheometer (DSR). The results of the investigation indicated that the CWAA had a significant reduction of required heat for mixing and compaction effort and also shows lower permanent deformation when compared to the control binder.
Experimental Study on Cement Mortar with Bentonite
Authors: Lee Hsien Hua , Wang C. W.
Published: March 2013

For an infrastructure construction located in marine environments, maintaining good durability for the structures always imposes serious challenges, especially for the structure made of reinforced concrete. Concrete exposed to marine environment may deteriorate as a result of combined effects of both physical and chemical actions from marine environment. Corrosion of the reinforced steel bars that are embedded in the concrete is the most serious problem. Therefore, a method to protect the reinforced concrete in the marine environment from damages due to material deterioration and corrosion is proposed in this study. The method is through the application of bentonite material by utilizing its very finely divided form so that the larger capillary pores in concrete can be filled up. In this way, the impermeability of concrete material can be enhanced and then improve the corrosion resistant ability of the material.
Application of GA-BP to Back Analysis of Rock’s Parameters
Authors: Wang Guo Feng , Zhao Wen , Guan Yong Ping , Li Shen Gang
Published: March 2013

The selection of material parameters relates to the excavation stability of the underground caverns. However, back analysis is an efficient method to evaluate mechanical parameters. Given the defects of BP neural network, such as low capability of generalization and long training time, by using GA, which have global optimization ability to optimize the BP neural network weights. The parameter of surrounding rock was designed by uniform and orthogonal method, not only reduced the iterative time also improved the accuracy of the prediction. The proposed method is further illustrated with its application to the underground cavern of Lvchunba railway tunnel. Based on the surrounding rock’s parameters obtained by back analysis, the displacement of the surrounding rock was predicted. The results showed that the error between numerical calculation value and actual monitoring value was 13.2%,-8.3%,-8.9%,9.4% respectively.
Tests on Mechanical Properties and Anti-Penetration Performance of Steel-Fiber Reactive Powder Concrete
Authors: Liu Yong , Song Chun Ming , Yue Song Lin
Published: March 2013

In order to get mechanical properties ,some RPC samples with 5% steel fiber are tested, many groups data were obtained such as compressive strength, shear strength and fracture toughness. And a group of tests on RPC with 5% steel-fiber under penetration were also conducted to validate the performance to impact. The penetration tests are carried out by the semi-AP projectiles with the diameter of 57 mm and earth penetrators with the diameter of 80 mm, and velocities of the two kinds of projectiles are 300～600 m/s and 800～900 m/s, respectively. By contrast between the experimental data and the calculation results of C30 reinforced concrete by using experiential formula under penetration, it shows that the resistance of steel-fiber RPC to penetration is 3 times as that of general C30 reinforced concrete.
The Research Progress of Epoxy Resin Coating in Building Waterproof
Authors: Liu Bing Tao , Zhu Guang Yu , Ding Peng Ju
Published: March 2013

Polymer epoxy resin is widely used in coatings and adhesives because of its excellent mechanical properties, adhesive properties, resistance to water and resistance to chemicals. In this paper, the research development status of the epoxy resin coating in building waterproof is reviewed. The preparation, performance measurement and application of epoxy resin waterproof coating are introduced, and the development trend of building waterproof coating is forecasted.
Flammability and Mechanical Properties of Toughened Phenolic Foams Containing APP, MP and MCA
Authors: Xu Shao Hong , Sui Xiao Yu , Wang Zheng Zhou
Published: March 2013

Flammability of toughened phenolic (PF) foams containing ammonium polyphosphate (APP), melamine phosphate (MP) or melamine cyanurate(MCA) was studied by limiting oxygen index (LOI). The LOI values show that APP or MP is an effient flame retardant than MCA in the toughened PF foams. The thermal decomposition and mechanical properties of the phenolic foams were also investigated.
Study on the Workability of High Performance Concrete Mixture with Compound Mineral Admixtures
Authors: Wang Yuan Gang , Wan Chao , Huang Kai Jian , Zhang Gao Qin , Hu Ya Feng
Published: March 2013

Several compound mineral admixtures, such as steel slag powder, granulated blast furnace slag powder and silica fume, are mixed with proper proportion to improve the workability of High Performance Concrete（HPC）. Through the orthogonal experiment, workability of HPC is analyzed on water-binder ratio, sand ratio, the amount of superplasticizer and the amount of compound mineral admixtures. Results show that: workability of HPC was significantly effected by the amount of naphthalene sulphonate water-reducing admixture and water-binder ratio, the amount of compound mineral admixtures and sand ratio are impact factors on the workability in a certain extent.
Experimental Study on a GGBFS Activator Using a By-Product Salt
Authors: Mu Ru , Liang Zhe Bing , Chen Xiang Shang , Wang Xiao Wei
Published: March 2013

The activator is very important for the use of high volume fraction slag in cement so that the compressive strength of cement complying with the requirements of codes. A new slag activator, which is from the by-product of magnesium chloride industry, is investigated experimentally. The test results show that the addition of the new activator increases the compressive strength of cement containing 69% slag effectively. Compared to the compressive strength of the reference cement (no activator added), the compressive strength of the cement with the new activator increases about 40%. The new activator has the similar performance as calcium chloride, which is a conventional slag activator. With the new activator, the compressive strength of cement containing 69% slag meets the requirements of standard GB1344-1999.
Experimental Study on Fire Resistance Properties of Post-Installed Rebar Connection
Authors: Wang Xin , Jiang Chang Jiu , Zhao Kao Zhong , Chen Xiang Rui
Published: March 2013

A serial of fire tests have been conducted to study the fire resistance of the post-installed rebar connection with organic adhesive. Research variables include three kinds of anchorage depth. Loads are applied to specimens through lever and remain a constant throughout the whole process of the tests. The temperatures of connections are elevated following the ISO834 curve and the failure is controlled by excessive deflection of bonded-in rebar beams. The test results show that anchorage depth has a great influence on the performance of bonded-in rebar beams exposed to fire. Beams using organic adhesive fail suddenly with obvious rebar slip, and behave with poor fire endurance.
New Trends of Green Building’s Skin Material: Take the Solar Decathlon Europe 2010 for Example
Authors: Zhang Sheng , Liu Hui , Wang Yang
Published: March 2013

By studying the entries of Solar Decathlon Europe 2010，the thesis sums up the new trends of green building’s skin materials, which are adjustable building skin materials, innovative application of traditional materials, solar skin integrated with architecture, regional context and aesthetic expression of the building skin materials. It is expected that the study can provide some reference and inspiration for the development of green building.
Technology Development and Application of Asphalt Concrete Impervious Panel
Authors: Ye Yong , Tan Lei
Published: March 2013

Asphalt concrete is a viscoelastic multiphase porous material consisting of asphalt, aggregates and mineral filler. The composite has good flexibility, durability and impervious properties, usually as an impervious body of hydraulic structures. Technology characteristics of the asphalt concrete impervious panel is summarized and the key of the structure design is reviewed according to the specification. Combining with engineering practice, research results provide a useful reference for the technology development and application of asphalt concrete impervious panel.
Experimental Study on Spray Uniformity of Spraying Machinery
Authors: He Yu Jing , Hua Heng Ming , Li Xiang Fu , Shi Jing Zhao
Published: March 2013

Spray distribution uniformity is a very important performance of nozzle. This paper analyses the spray uniformity of the spraying machinery as well as the influence factors. Spray distribution coefficient of variation of nozzles varies with the different spray pressure, spray pressure and spacing. The nozzles of lechler ST made in German were tested to present the optimum spray height with different spray pressure and spray spacing through analyzing the trend of coefficient of variation varying with the different spray pressure, spray height and spray spacing. By the test, the greatest impact on spray uniformity is the pressure of the spray bar, followed by the height and the spacing of the spray bar. By analysis of the spray distribution coefficient of variation, we find the optimum combination of the spray pressure, spray height and spray spacing.
3D Visual Geology-Modeling in Wannian Mine of Fengfeng Coalfield
Authors: Shao Ai Jun , Chen Ji Hua , Huang Yuan
Published: March 2013

Based on the analysis of regional geology and hydrogeological conditions of Wannian mine of Fengfeng coalfield, according to field's borehole data, geological data and hydrogeological data, we use GMS software to make the three-dimensional visualization strata modeling in Wannian mine of Fengfeng coalfield. Through cutting geological model built in different directions or at different levels and rotating to different directions and different angles, the complex underground geological environment is displayed in three-dimension, which helps geologists to analyze the geological conditions and solve various geological problems.
The Setting of the Database Management System for Geotechnical Engineering Exploration
Authors: Lang Qiu Ling , Li Guang Jie , Yang Miao
Published: March 2013

Based on the remaining research results of database and its development software, this article develops the database system of geotechnical engineering exploration for a city using the database management system SQL Server 2005 and vb6.0, and establishes the database tables at all levels, and then advances the more reasonable System Structure, which make the system realize data edition function, information inquiry function, database management function, graph drawing function, data output function and so on. Moreover, the system interface is friendly and the system is easy to operate so that it is convenient for users to study and use, and it achieves good results.
Implosion Method of Numerical Simulation and Local Component Failure Analysis
Authors: Li Xiang Long , Yang Yang , Luan Long Fa
Published: March 2013

By MAT96 and integral model in the ANSYS/LS-DYNA finite elements software, the numerical simulation research is conducted to building directional of Heibaishui hotel blasting . based on the calculation results to analy the hotel building collapsed in the process of forward, back, bloating, and made a quantitative description to the collapse process,compared to the actual project, it is found that integral model simulation results can better meet the reality, and also has guiding significance to the actual project.
Humanistic Interpretation for Green Building
Authors: Shi Yu , Qi Jia Hua
Published: March 2013

Architecture is the second space for human survival. Green building is proposed as a new type of architecture in the construction industry targeting at the increasingly serious ecological problems. The fundamental attributes of green building are low energy consumption, low pollution and sustainable development in harmony with the environment. The basic characteristics of this new type building are environmental priority, energy saving, healthy living and harmonious coexisting. The realization of green building not only depends on science and technology, but also needs the cooperation of cultural concept. The cultural values of green building are to inherit traditional building wisdom, establish the scientific development, and motivate potential development, which are essential for green building to be widely accepted.
Livable Index System’s Establishment and Analysis of Old Community Renovation
Authors: Li Meng Ling , Meng Xing
Published: March 2013

Old community renovation is an important project about the livelihood of people, and the nation is catching the work. This paper firstly analyzes the definition of livable community and the livable condition of old community renovation, establishing the livable index system and the livable evaluation model of old community renovation. The paper employs Analytic Hierarchy Process to determine the index weighs and takes use of Fuzzy Comprehensive Evaluation Method to analyze the case.
Modern Architecture in Shanbei Influenced by Regional Environment
Authors: Lei Yao Li , Liu Yi
Published: March 2013

Based on collecting literature and investigating the examples of modern architecture being existed in Shanbei. It is discussed in the paper that the special regional environment influences on modern architecture in Shanbei from three aspects including the site and layout, the application of space vocabulary and the traditional culture infiltration. The paper reveals the unique characteristics of modern architecture in Shanbei. The research will fill the vacancy of Shaanxi modern architecture research in some way, and at the same time this study will provide the beneficial enlightenment and reference on the local modern architecture research as well as architecture design in future.
Research on the Urban Architecture Color and Chromatography - A Proposal of Digital Environmental Color Taking Dandong City’s Building Color as an Example
Authors: Li Yu
Published: March 2013

There are some modern urban sickness in the process of city development and construction for example，peccancy of dismantling and construction，failure to protect cultural heritage，replication of building and environment and disorder of material and color because of the deficiency of complete law system of city management．On the base of investigating Dandong city，the paper sets up digital color system and color database for Dandong’s city and building planning and designing and lays the foundation for popularizing and utilization digital color database in other cities in Liaoning province．The paper will be beneficial to regulate the laws of urban development and constriction，the protection of cultural heritage in view of local color spec-trump and the improvement urban environment．
Study on the Space Interface Characteristics of Minimalism Architecture
Authors: Gao Xiao Ming
Published: March 2013

By backward-reasoning and analyzing the features of spatial forms of contemporary minimalism architecture, an abstract concept, space interface, is introduced to restore the original elements, investigate the construction processes and explain the essential connotations of the spatial forms. On this basis, three different types of rational construction logics are summed up: the geometric forms of volume, the illumination manifestations of light and the folding appearances of surface, in order to interpret the inherent simplicity and purity of the space interface characteristics of minimalism architecture and provide a kind of realistic theories and methods of space interface manipulation for architectural practices.
Parameter Optimization Design of Soil Nail Supporting to Deep Foundation Pits
Authors: Xu Wei , Feng Jian Sheng
Published: March 2013

In order to reduce the cost of soil nail supporting to deep foundation pits and ensure safety as well as stability, a model is established to optimize the design parameters for soil nail wall. This paper is concerned with the analysis of soil nail channel number, diameter, length, horizontal spacing, vertical spacing and dip angle. For parameter optimization design of soil nail wall is a complex problem, the traditional method is easy to fall into local optima. The genetic algorithm is a global optimization method. To some extent it has the drawback of appearing premature convergence and oscillation so as to slow iterative process. Therefore, a forward and backward search algorithm is proposed, which is combined with genetic algorithm. Furthermore some improvement measures are put forward by means of improved hybrid genetic algorithm. As a result engineering studies arrive at an optimum design. It shows that the optimized design results of IHGA not only ensure the stability of foundation, but greatly reduce the cost of engineering materials.
Cultural Districts, Tourist Booster and Local Mingle a Focus on Seoul
Authors: Pedrabissi Dario
Published: March 2013

The main focus of this paper is on understanding the metropolitan strategy in relation to culture and tourism and its effect on urban and architectural design. Cultural districts have been conceived as tools adopted by local governments to increase the city’s economic development, using tourism as a major booster capable of transforming cities and territories. The attractiveness of cities has been an increasingly important topic on the agenda of urban policy planners since the impact of globalization has changed the city strategy in favour of the emergence of a knowledge-based economy. South Korea has increased massively its investments in the tourist sector elevating Korea to a leading nation of the culture, leisure and tourism industries. Seoul as the global capital city of South Korea has been increasing its investments in cultural projects since last decades in order to enhance its visibility at the national and international level.
The Suitability Evaluation of Underground Space Development and Exploit about Shijiazhuang Zhengding Newly-Developed Area
Authors: Liu Chun Yuan , Yue Zhi Hui , Liu Yu
Published: March 2013

Development and exploit of underground space is an important direction for future urban development, in a certain extent, exploit underground space could alleviate the modern urban’s contradictions such as land, traffic jam and so on. The exploit of underground space involves the rational distribution of the natural resources, construction technology, costs, and many other factors[1]. This topic use the Analytic Hierarchy Process defines the weight of the topography, stratigraphic structure, formation stability, groundwater depth, and the other 15 factors which impact the exploit of underground space, and then use the gray mathematical theory to calculate the Correlation Degree between evaluation index and suitable levels. Finally, based on the GIS map, numerical each evaluation index, and then use the integrate superimposed way obtained the Suitability zoning map of Shijiazhuang Zhengding newly-developed area,this zoning map has important guiding significance for construction projects, especially for the plan, design,exploit and construction about underground space.
Urban Rainwater Infrastructure Planning in Arid and Semi-Arid Regions Based on LID
Authors: Miao Zhan Tang
Published: March 2013

On the basis of pointing out the fact that traditional rainwater infrastructure planning and construction has always ignored the feature of rain as resources, this paper clarified the significance of reconstructing the rainwater infrastructure system. According to their rainfall characteristics, Chinese cities can be divided into three geographically different kinds, Different methods are provided for each kind. This paper also analyzes a new rainwater infrastructure system in arid and semiarid areas, with rain garden as its core infiltration facility.
The Macro Morphology Evolution Aanalysis of Jiangcheng Town in Yunnan Province
Authors: Cui Jing , Cui Hong , Duan Yong
Published: March 2013

The author investigated the Jiangcheng town changes of layout configuration, network structure and functional partition in its formation, development and decline process, analyzed change factors of the Jiangcheng town, including functional requirements, natural conditions, construction of system and Geomantic view, summarizes the alternate mechanism of the external factors and internal factors.
Urban Design Supported by "Green" Streets - Urban Design for Financial Technology Island of Beijing "TBD"
Authors: Yu Jian Guang , Yu Jian Kun , Ma Hong Wei , Xu Lei
Published: March 2013

Green transport is a concept to build a comprehensive urban transport system, which aims to reduce traffic congestion and energy consumption, promoting a more friendly environment and saving building maintenance costs. From the perspective of urban design, this paper focuses on how to integrate green transport into urban design and discusses the implementation strategy of green transport.
Research on Calculation Theory of Double-Row Piles Retaining Structure
Authors: Cao Jing , Jiang Kai Yu , Gui Yue , Liu Hai Ming
Published: March 2013

The double-row piles retaining structure (DRPRS) is widely applied in the excavation engineering, but its calculation theory is immature and in appropriate. Based on the theory of earth pressure distribution, the distribution characteristics of earth pressure is analyzed to different layout form, and the general formula of earth pressure is derived. From the perspectives of the morphology of slip surface, linear slip surface morphology and broken-line slip surface morphology are proposed based on the feature of the DRPRS. A new calculation model is proposed combining the earth pressure and slip surface morphology. On this basis, one example is used to analyze the force and deformation mechanism of the DRPRS in detail. The research results can guide the engineering practices and promote the development of calculation theory for the DRPRS.
Membrane Separation Coupled with Photocatalysis for Water Supply and Wastewater Treatment
Authors: Wang Zhi Yang , Wang Ling , Yao Lin Fei , Pei Mei Le , Zhang Guo Liang
Published: March 2013

Membrane separation coupled with photocatalysis process, which is also called photocatalytic membrane reactor (PMR), is a new hybrid technology working for water supply and wastewater treatment. Due to some unique advantages, such as nontoxic and continuous running, this kind of novel coupling systems has developed rapidly in the past few years. In this work, the characteristic and structure of configurations, photocatalysts and membranes are analyzed briefly.
The Urban Ecological Sensitivity Analysis of Enshi city Based on GIS and Analytic Hierarchy Process Model
Authors: Huang Ting , Cheng Sheng Gao , Hu Zhong Xia
Published: March 2013

With the rapid development of urbanization in China, the ecological environment is more and more seriously threatened; most cities should be focused on urban ecological environment construction and protection. In this paper, we choose the vegetation, slope, elevation, surface river system as the factors, and their weights were determined by analytic hierarchy process (AHP). Applying with GIS spatial analysis technique, the ecological sensitivity of the four factors was divided into four grades which contains high sensitive area, moderately sensitive area, low sensitive area and insensitive area areas occupied 9.43%, 36.46%, 50.61% and 3.50%. There existed a significant spatial differentiation in the ecological sensitivity of Enshi city. This study could provide scientific references for the city's environmental protection and economic development, to help its economic growth.
Research on the Softening and Disintegration Mechanism of Carbonaceous Shale
Authors: Liu Xin Xi , Wu Zhong Jie , Wang Ge , Yang Zi Han , Tang Shi Xiong
Published: March 2013

The microstructure and composition of carbonaceous shale are analyzed by using the scanning electron microscope and x-ray diffract meter, the dynamic characteristics of the disintegrating mechanism and microstructure are also studied. The results show: the connection between mineral particles of carbonaceous shale are destroyed under the action of water, the mineral particles will expand rapidly under the forces of sunlight and temperature change, generating uneven stress and micro-pores. The micro-pores will destroy the structure of rock and make the phenomenon of softening and disintegration. The results could provide a theoretical basis for the filling of carbonaceous shale embankment and the protection of slope.
Research on the Treatment of Oily Sludge
Authors: Chen Ping , Kan Lian Bao
Published: March 2013

The oily sludge was more serious polluted to the environment, it is necessary to harmless treatment. Analysised the composition of the oily sludge. Three ways to deal with oily sludge included chemical treatment, biological degradation and resource utilization. Elaborated the application of three ways, dicussed the pros and cons, thought waste utilization was the most effective way.
The Technical Study on Photo-Catalytic Oxidation Treatment of Low Concentration Methanol Wastewater in Gas Field
Authors: Zhao Min , Jiang Ji Hui , Zhou Li Hui , Jin Peng Kang , He Dong
Published: March 2013

Though analysis and determination on wastewater quality of Gas Field, it can be seen that the main organic matter in wastewater is low concentration methanol. Aiming at the characteristics of higher degree of mineralization, methanol and lower pH ,the experiment is focusing on the effect of manganese dioxide & hydrogen peroxide catalytic oxidation process on methanol wastewater treatment properties and functions.The results show, for low concentration methanol wastewater,the manganese dioxide used has a diameter of 5nm with a dosage of 300mg/L, also a illumination intensity of 120Q, when the dosing ratio with hydrogen peroxide is 1:10, after 8h reaction period, the degradation rate of methanol were all above 70.0%.The methanol content after treated can meet the reference standard for Gas Field reinjection water
The Type and Spatial Characteristics of Landscape Prototype in Entrance Space of Traditional Blocks in Jiangnan Area
Authors: Shi Ming , Chen Li , Luo Jing
Published: March 2013

Based on the methodology of architectural typology, this paper conducts a study on the landscape prototype in entrance space of traditional blocks in Jiangnan area with a point cut of spatial pattern. The research on landscape prototype extracts the basic prototype of spatial pattern through a summarization of it in entrance space on the basis of two-dimensional perspective, and seeks to provide essential base for realizing the sustainable design of landscape renovation and regeneration of traditional blocks in Jiangnan area.
Brand Construction of Kaifeng Cultural Industry Park for Ancient Capital of Song Dynasty
Authors: Liu Han Zhou
Published: March 2013

Beginning with an interpretation on the connotation of cultural industry park and its brand construction, this paper, based on the analysis of its strengths and weaknesses, puts forward some specific proposals on how to construct a brand for Kaifeng cultural industry park for ancient capital of Song dynasty, which are intended to be practical of reference for that purpose.
A New Data Aggregation Model for Intelligent Transportation System
Authors: Wu Jun , Zhong Luo
Published: March 2013

Intelligent Transportation System is a new kind of complicated information system which includes many different wireless sensors. With the development in sensor technologies and their applications, it is important to focus on how to find the useful and real-time traffic information from the Intelligent Transportation System. Using this method of building dynamical data system model for the Intelligent Transportation System is the way to solve the data aggregation problem and minimize the number of the multi-sources data.
Research on the Integrated Planning of Urban Passenger Transit Network
Authors: Wang Zheng Yu , Tian Jun Li , Jia Yu Wen , Li Cheng Bin
Published: March 2013

In order to alleviate the low efficiency utilization of public transportation resources in the urban traffic of our country, the paper is put forward to analyze the planning methods of integrated passenger transit network, which gives an emphasis on the efficient cohesion, coordination and transfer between different modes of transportation, as well as gives a consideration to the urban development planning and the program of land layout. With a large number of data and field investigation, the paper found, based on the site and hinge layout planning provided the O-D points of the route, we should give full consideration to the constraint conditions and set goal functions, then match each O-D point and choose the appropriate sections and appropriate means of transportation, when we do the planning of integrated urban passenger transit network. Meanwhile this paper established the model of a bi-level programming and the corresponding bi-level iterative algorithm. Finally the model will be applied to the passenger transport of Hohhot , and the various indexes before and after the project will be compared in order to test whether the model established is correct or not.
An Automated Progress Tracking System for Industrial Facility Construction Projects
Authors: Choi Jaeh Yun , Lee Kyu Sung
Published: March 2013

As amount of information in construction industry is growing, the role of information system in project management is becoming increasingly important. With the emerging IT application to the advancing construction industry, construction project management system with advanced technology has been progressed vigorously to improve construction productivity and management efficiency. Recently, a web-based Project Management Information System (PMIS) is developed to support decision-making process by efficiently managing project related information generated from various discipline. Many firms are in the process of developing the PMIS system or already have been applied the system to various projects. However, PMIS is still in its early stage of development to be applied at industrial plant construction projects. With the complexity of the industrial plant projects, the industry practitioners need to be able to visualize the construction schedule information to manage the project efficiently. This study suggests methodologies for improving PMIS specialized for industrial plant piping construction projects to estimate the baseline schedule and performance measurement more accurately by developing a framework for the piping construction projects. By using this developed system, the researchers expect that piping construction projects will be more efficiently managed on a real-time basis through measuring progress of piping at each and every state of progress milestone and provide management with opportunities to forecast the level of efforts required to execute the remaining work scope in a timely manner.
An Analysis of the Safety Education for Foreign Laborer in Construction Site
Authors: Shin Yoon Seok , Nam Seok Hoon , Kim Tae Yong , Kim Gwang Hee
Published: March 2013

In recent years, the number of foreign workers employed on construction sites in Korea has been on the rise, and industrial accidents involving foreign workers have become a social issue. Yet despite this fact, the interest in safety education for foreign workers has still been relatively low. For this reason, the purpose of this study is to analyze the current state of safety education for foreign construction workers. To conduct an analysis of the current status, we surveyed foreign construction workers currently working at construction sites. Based on the results of this survey, we have derived an outline for an improvement plan founded on an awareness of and problems in safety education for foreign workers.
The Block Spring Model for Slope Stability Analysis (BSM)
Authors: Ma Jing , Chen Wen Sheng , Li Zhen
Published: March 2013

Many methods have been used for slope stability analysis in recent years. Limit equilibrium method is more popular than others, but its model is very simple. This paper gives a more reasonable model and develops a program by VC++ . A reasonable result is obtained with the proposed model.
Study on Effective Classifier for Software Engineering Data Sets
Authors: Gao Yong Hong
Published: March 2013

A wide range of important software engineering problems need solutions that involve accurately predicting outcomes, such as the number of defects in a module, the estimated cost, or deciding the best software development process to use. Mathematically a classifier is a function that maps an N-dimensional attribute space to a discrete set of labels of the class variable. We proposed an effective classifier for software engineering data sets, the results show that the accurate predictions can have an enormous positive impact on reducing these problems and ensure projects’ successes.
Signal Feature Analysis of Excited Stress Waves in Bolts Embed in Different Anchor Medium
Authors: Sun Bing , Zheng Xu Tao , Zeng Sheng
Published: March 2013

Based on the one-dimensional wave theory, nondestructive testing with stress wave reflection method bolts is a kind of quick and effective detection method; the method was used to estimates the anchorage quality according to some parameters such as waveform, phase, amplitude, frequency as well as arrival time of both the incident wave and the reflected wave; stress wave velocity is the basic parameter for quality assessment, the velocity is depended on signal identification of the integrity bolts, especially the reflected ones from the bottom. This paper, through the transient dynamic response experiment of anchor in different anchor medium, analyzes the dynamic measurement signal waveform characteristics. The results show that, fixed end reflection signal is very strong , but bottom end reflection signal is very weak, even it is difficult to identify; the compactness of surrounding rock and anchorage medium have certain effect in dynamic measuring signal waveform characteristics, if surrounding rock and anchorage medium is uniform and dense, the wave type of anchor dynamic measuring signal is regular and steady, instead, signal clutter and irregular; model size and boundary conditions also have certain effect on the change characteristics of the signal, so this effect should be considered in laboratory experiment.
Experimental Analysis of Wall Consist of Straw Concrete Composite Board under the Action of Vertical Load
Authors: Jin Yu Jie , Qian Kun , Wang Miao
Published: March 2013

This article mainly analyzes characteristics on bearing capacity of wall consist of the straw composite board under vertical load, as well as bearing characteristics of various member under vertical load. Through the model test of 1:50 scale, it is obtained that cracking load, ultimate load and deformation of various elements of wall model in the process of test. The required data is provided that the bearing capacity formula under axial compression is to calculate straw concrete wall consist of composite board.
Light Steel Structure Residence Social Benefit Analysis
Authors: Wang Ming Yang , Chu Yun Peng , Yao Yong , Zhu Yu Ping
Published: March 2013

China is a developing country, and also a quake-prone country. On the one hand is the Special national conditions that per capita energy shortage and frequent earthquakes, on the other hand is the social economy development and people's living environment requirements continue to increase, both of them raised new requirement of China’s residence system development. Light steel structure residence is energy conservation , environmental protection, safety and seismic, these unique advantages just to meet the current development of residential industry in China, so it has a good development prospect. This article start from the realistic background, around the application and development of our country’s light steel structure residence presently, mainly introduced the characteristics of light steel structure residence, the impact of construction industry, and the social benefits, environmental benefits, housing industrialization effective and comprehensive benefits it can produce.