bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the Application of Step-pool System in Ancient Irrigation Engineering
Authors: Wang Yijia , Gao Lihui , Yao Jianfeng 
Published: June 2021

Abstract
The “step-pool system” is a common river topography in mountain rivers. In the application for Heritage Irrigation Structures in 2020, an artificial “step-pool system” built two thousand years ago was shown to the world, which is located in the 36 Weirs of Baishaxi Stream in Wucheng District, Jinhua City, Zhejiang Province. The creator of this ancient irrigation project used the ideas of “Building weirs by ponds” and “Distributed river development” on the Baishaxi stream, which spans 45 kilometers from the end to the end and has a vertical drop of 168 meters, to build this multifunctional ancient super barrage group project. Their experience and insights coincide with modern engineering theories, which have changed the natural characteristics of the river and made positive changes in the ecological environment of the river basin in a direction that is beneficial to human life.
Identification of pulse-like ground motions during the 1994 Northridge Earthquake
Authors: Han Lu , Tao Zhengru , Wang Xinyan 
Published: June 2021

Abstract
The 1994 Northridge Earthquake is selected as an example to discuss the ability of three pulse-like ground motion identification methods. Wavelet analysis, peak-point method (PPM) and zero velocity point method (ZVPM) are used. Pulse indictor (PI) is calculated to identify pulse-like ground motions from 314 near-fault records. Peak ground velocity (PGV) and pulse period (T

p
) of the pulse-like motion from these three methods are compared. Most of the pulse periods from PPM are smaller than those from the other two methods. And, most stations with pulse-like ground motions are located on the hanging wall. The effect of velocity pulse on response spectra is investigated further. The amplification at the hanging wall stations is more serious than that at the footwall stations.
Construction Method of Evaluation System of Water Conservancy engineering Heritage
Authors: Ding Mengjiao , Yao Jianfeng , Li Wenye , Lu Bing , Wang Hanxiao , Chen Siyu 
Published: June 2021

Abstract
At present, socialism with Chinese characteristics has entered a new era, and the reform and development of water conservancy is facing new situations, new tasks and new requirements. With the establishment of the list of “Heritage Irrigation Structures” in 2014, the ancient irrigation system in China has been gradually excavated, and the irrigation engineering heritage of our country has reached 23 items. The protection and display and utilization of ancient irrigation heritage is conducive to transforming the advantages of historical and cultural resources into social and economic advantages and promoting the development of local economy. Through the collection of literature and field research, this article deeply studies the formation and characteristics of water conservancy project heritage, analyzes the value composition of water conservancy project heritage, and summarizes and extracts the indexes of water conservancy project heritage value, and this paper points out the principles of selecting index items. In this paper, the index system is divided into target layer, criterion layer, supplementary criterion layer and index layer. The target layer is five values, the criterion layer is the specific classification of the target layer, the supplementary criterion layer is the corresponding supplement of the criterion layer, and the index layer is the quantification of the criterion layer.
A Simplified Limit Equilibrium Model for Calculating Limit Support Pressure on Shallow Shield Tunnel face
Authors: Pang Bo , Liu Shujia , Wang Haoran , Zhang Zhongjie , LÜ Xilin 
Published: June 2021

Abstract
Shield tunnel excavation face may collapse if the applied support pressure is not enough. Based on an elaborated failure mode of shallow shield tunnel face, the least limit support pressure to maintain stability is analysed by using the limit equilibrium method. The calculated limit support pressure decreases nonlinearly with the increase of friction angle, decreases linearly with the increase of cohesion, and decreases with the ratio of buried depth to tunnel diameter. By comparing the calculated results with existing tests, the theoretical model was shown to be reasonably predict the limit support pressure of tunnel excavation face in sand under drained condition and in clay under undrained condition.
Tentative Design Study of Ballasting Tank for Very Large IMT Unit
Authors: Li Wang Hui 
Published: June 2021

Abstract
The ballasting tank is one of the key points in the design and construction of immersed tube tunnel. With the development of construction technology and social requirement, the size of IMT unit is becoming bigger and bigger. The design of ballasting tank will be more important in very large IMT unit. This article takes the Shen-Zhong Link IMT project which is under construction as example to express some design principles for ballasting tank. Particularly, the stability of unit during sinking will be emphatically analyzed for arrangement of ballasting tanks.
Discussion on the Value of Hanging Foot Building in Modern Design
Authors: Liu Xin 
Published: June 2021

Abstract
Hanging-foot building is a unique charming form of traditional residential architecture, and its architecture itself contains a large number of architectural features that reflect the folk culture formed by local residents to a certain extent. However, with the development of modern design and the spread of Western design ideas, Chinese traditional architectural culture has declined rapidly. Through a large number of literature reading, field investigation and related image data research, it is found that the architectural structure, materials, spatial layout of the podhouse, respecting nature, scientific and reasonable, and harmonious and unified with the environment, have great value enlightenment for modern design. The refining and application of the architectural structure, traditional building materials and traditional elements of the suspended building can effectively inherit and carry forward the traditional Chinese architectural culture, and at the same time, it can also make modern design works more traditional.
Design of Continuous Girder Bridge Inclined Support System
Authors: Bian Yu , Chen Shuai , Zhang Huijun 
Published: June 2021

Abstract
This paper takes the continuous girder bridge with inclined support as the object and establishes the finite element model with Midas for calculation and analysis. Combined with the engineering practice, the support system with stiffness is used to ensure the pier in a good working state. The support system with stiffness consists of brake piers with plate-spring bearings installed in both the axial and transverse directions, and the rest of the piers with plate-spring bearings installed in the transverse direction.
Reflections on some problems of regenerative architecture
Authors: Li Bing , Liu Hua Zhao 
Published: June 2021

Abstract
Architecture has its own language, which records stories and retains emotions in a special way. Only time will inevitably make buildings old and inconvenient, but now our choice is no longer to abandon or destroy them. We can add functions and extend connotations through transformation, and the existing buildings can be revitalized again and move us. On the other hand, the construction industry already accounts for 40 percent of the world’s energy use, and in the developed world, around 65 percent of the total projected building stock by 2060 has already been built, a reminder that perhaps we really need to look to the existing buildings around us in the future.
Study on Bridge Industrialized Construction Simulation
Authors: Tang Hongyan , Wang Xiuyan , Wang Jianchao 
Published: June 2021

Abstract
Large urban overpasses are important traffic nodes and control points of project construction. How to realize the rapid construction is always the focus of engineers. The industrialized construction of bridges has the advantages including less on-site work, shorter construction period and less impact on traffic, which has great significance for the construction of large urban overpass bridges. In this paper, Tianjin Outer Ring Road Jinlai interchange project is taken as an example to study the simulation of construction using the whole bridge prefabrication and field assembly. Compared with the traditional cast-in-place construction method, the on-site construction time of prefabrication in factory and field assembly of the whole bridge is shortened by 83%.
Technical and Economic Analysis of the Life Cycle of Huangmaohai Cross-sea Bridge
Authors: Chen Zhanli , Shi Jintao , Fu Baiyong 
Published: June 2021

Abstract
Huangmaohai Cross-sea Bridge has a total length of about 31 kilometers and adopts two-way six-lane design standards. There are 2 super large cable-stayed bridges, one of which is the Huangmaohai Bridge. It has a span of 720 meters, and after completion it will become the world’s largest span three-tower cable-stayed bridge. Choosing the best plan in the project decision-making stage of large-scale cross-sea passage projects and other public construction products, eliminating blindness in plan selection, and optimizing the life cycle costs of the project can save a lot of manpower, material and financial resources for the country and society. According to the relevant concepts and classifications of the life-cycle cost of the project at home and abroad, this paper divides the life-cycle cost of China’s highways into three types of costs: construction period cost, operation period cost and disposal cost, and carries out economic analysis in combination with main technical solutions. The analysis results strongly support the design scheme comparison and selection of the Huangmaohai Cross-sea Bridge.
Influence of steel ratio on the vertical deformation of super high-rise building
Authors: Hongxue J , Xuqiao Z 
Published: June 2021

Abstract
Taking a super high-rise project as the research object, considering the shrinkage and creep characteristics of concrete and different steel ratio, MIDAS/Gen is used to simulate the construction process of the structure. The results show that different steel ratio has an impact on the vertical deformation and the vertical deformation difference. In the design stage, the reinforcement amount should be increased appropriately, so as to reduce the vertical deformation difference between the core tube and the outer frame column.
Research on Maintainability and Renewability of SI Housing
Authors: Gan Shenqi , Zhang Hong 
Published: June 2021

Abstract
Based on the development status and construction technology of SI residential buildings in developed countries and China, this paper focuses on the technical design method of maintainability and renewal of industrial residential buildings. The paper points out that it is the partial production and integrated assembly technology of industrial construction that make the future maintenance and update of housing products possible. The scale of industrial operation will change the structural form of the construction industry chain to a large extent, which is of great significance to the development of Chinese housing industrialization.
Ship Impact Force Analysis and Design Project Selection of Pinghai Bridge
Authors: Zhang Lingmei 
Published: June 2021

Abstract
Based on summing up the domestic and foreign ship impact force calculation formula, the finite element method was used to establish the Pinghai Bridge analysis model. The pier ship impact force as a reference came from relevant design data, and the finite element calculation and analysis on ship impact were carried out. For there is auxiliary pier and not, the internal forces of main pier, cap bottom of main pier and a single pile under the combinations of ship impact force along and across the bridge direction of Pinghai Bridge were respectively calculated and reinforcement designed. The results show that the section of main pier can meet the force requirements only by the structural reinforcement; under the ship impact loads, saving the auxiliary pier has little effect on the results of section reinforcement of the main tower and the main pier. These conclusions have reference values to some extent for the design plan selection under the action of ship impact force.
A Review of Housing Certification Standards with a Focus on Energy Efficiency
Authors: Liao Zaiyi , Tam Claire 
Published: June 2021

Abstract
In addition to building codes and regulations, voluntary housing certification standards also play an important role in the energy efficiency of housing. Each of these standards was established in response to a set of specific demands for high performance housing. Consequently, the energy conservation technologies and design approach applicable could be very diverse and dynamic. This paper is aimed to provide a comprehensive review for the state-of-the art housing standards with a focus on energy efficiency. It was observed that these standards normally evaluate energy efficiency based on percentage savings of the design with energy conservation measures compared to a reference case. The net-zero energy balance between energy consumption and on-site energy generation is considered the highest level of performance. This paper examines if this approach is adequate and prompts future research in order to improve the effectiveness of housing standards in defining sustainable housing.
The Building Investigation Reprot of Lan-Yan Railway
Authors: Zhang Tianjiao , Qi Hanwen , Du Mingqian 
Published: June 2021

Abstract
The Lan-Yan Railway is the first railway line built in Shandong Province under the “First Five-Year Plan” period, which embodies more “national confidence” of the people’s Republic of China. This paper focuses on the damage of building sites along the railway through field investigation, analyzed the present situation and the value of Lan-Yan railway, and pointed out that it is of great significance to protect the building sites along the railway line. It is hoped that the completion of the report can provide some reference for the protection of the architectural heritage along the railway in Shandong Province.
Construction Technology and Analysis of High and Large Formwork for Automobile Ramp
Authors: Xu Qianqian , Cheng Yechun , Xu Jiajia , Lu Mingyu 
Published: June 2021

Abstract
A square project in Hangzhou has the characteristics of high floors, deep foundation pits, large loads, and dense surrounding buildings and various municipal pipelines, which brought great difficulties to the construction, especially the formwork support part. This paper takes the construction of the tall formwork of the automobile ramp as an example to illustrate the design process and construction technology of the tall formwork of the project’s automobile ramp. The rationality of the design of tall formwork was checked by PKPM software. The quality and safety monitoring measures of the construction process are also given.
Crowded treading warning system for urban rail transit stations based on video detection technology
Authors: Xu Jiajia , Li Xuemei 
Published: June 2021

Abstract
Based on the rapid development of rail transit, it have a greater hidden danger of congestion and trampling, this paper proposes the construction of an urban rail transit station congestion and trampling warning system based on video detection technology, which uses video detection technology to collect the passenger flow, velocity and density data of the bottleneck channel in rail transit stations, then build and train neural network model to predict the next time passenger flow density combine with the three-parameter relationship of the traffic flow, and use the SPSS software used to fit and analyze the passenger flow parameters. So the limit value of the flow-density polynomial model is predicted by pedestrian flow mutation model and used to realize the definition of the critical passenger flow density model based on the catastrophe theory. On this basis, this article compares the real-time predicted value of passenger flow density to it and get the analysis result, then set the corresponding early warning coefficient, early warning level and early warning measures, so it can truly realize the real-time warning of congestion and trampling in rail transit stations based on passenger flow density prediction.
Conservation and regeneration of historical buildings
Authors: Li Bing , Han Jian 
Published: June 2021

Abstract
With the continuous development of society, historical buildings have become an important carrier of social development memory. They are both witnesses of urban development and participants in urban development. Therefore, the protection and regeneration of historical buildings are particularly important. Through the exploration and research on the protection and regeneration of historical buildings, we can reduce the loss of people’s spiritual places, promote our national cultural self-confidence, and protect our cultural sequence.
Study on automatic welding technology of single-side welding and double-side forming of large diameter steel
Authors: Zhao Kexin , Yang Yongmin 
Published: June 2021

Abstract
The installation of penstocks in the construction of water conservancy and hydropower projects should be a key link in the quality control of hydropower projects. It is of great significance to the stability and safety of hydropower projects. Based on the construction process requirements of the steel pipe in the tunnel of a water conservancy project in South China, this paper has developed an all-position automatic welding technology of single-sided welding and double-sided forming of the inner circumferential seam of a super large diameter steel pipe after many tests, and analyzed the factors affecting the welding quality. After repeated trials and adjustments of process parameters, a lower welding voltage (small molten pool) and a larger welding current (guaranteed penetration) are used to ensure a certain deposition efficiency, and finally stable welding quality is achieved. It has certain reference significance for the improvement and improvement of the automatic welding technology of single-side welding and double-side forming of large-diameter steel pipes.
Early Warning and Source Identification System Design for Chemical Spill Incidents of Jinhua River
Authors: Zhang Guangpeng , Ding Tao , Zhan Guangjie , Du Xinyi , Yan Danjia 
Published: June 2021

Abstract
The key factor in solving frequent chemical spill accidents is how to identify the pollution source information such as discharge location, discharge time and discharge amount or discharge rate, that caused the accident as soon as possible. Furthermore, the diffusion process of pollution accidents is simulated and predicted. Based on the proposed warning model and source identification method, an early warning and identification system for river chemical spill incidences in Jinhua River was designed and developed after collecting the geographic scope of the rivers and the national and provincial monitoring sections of Jinhua River. The system is used to simulate and predict diffusion process of pollution mass, and identify the unknown pollution source information that occurred in the Jinhua River. The early warning and identification system has been applied to the Jinhua River. The results show that the system has higher reliability, and it can provide an intuitive and scientific basis for relevant departments to respond to water pollution accidents and help them to handle pollution accidents quickly, reasonably and economically.
Direct Calculation of Updating Parameters Based on Kriging Model for Bridge Finite Element Model Updating
Authors: Wang Qiuping , Qin Shiqiang 
Published: June 2021

Abstract
To improve the calculation efficiency and to avoid the updating results being affected by optimization algorithms, a direct calculation of updating parameters method based on Kriging model for model updating is proposed in this paper. The proposed method first generates the data samples of updating parameters by using Latin hypercube Design (LHD). The corresponding structural response is calculated by initial finite element model. Then, the explicit function between updating parameters and structural responses is obtained based on kriging theory. Finally, the best design parameters are directly solved using the experimentally obtained structural response as the objective value based on the established Kriging model. Model updating of Caiyuanba Yangtze River Bridge is employed to test the proposed method. The results show that the model updating based on direct calculation method avoids the iterative calculation and improves the computational efficiency. The proposed method can provide the approximate accuracy level compared with the traditional Kriging model method.
Assumption of the application of block chain technology in engineering project management
Authors: Chen Siyu , Tu Zhibin , Lu Bing , Ding Mengjiao , Wang Hanxiao 
Published: June 2021

Abstract
In recent years, along with the rapid development of construction industry, gradually exposed shortcomings existing in the project management process, block chain technology as a new technology, has a decentralized, transparency and traceability, if can block chain technology, introduced in the engineering project management, some existing problems will be improved, such as information back difficulties, poor supervision. Based on this point of view, this paper discusses the application of block chain technology in engineering project management.
Application of wellbore strengthening drilling fluid technology in Lingshui gas field
Authors: Li Jia , Qiu Zhengsong , Liu Zhengkai , Yang Yifan , Song He , Liang Yan 
Published: June 2021

Abstract
Fractured reservoir is developed in Lingshui gas field and the problem of lost circulation is prominent. To improve the pressure bearing capacity of fractured formation, the wellbore strengthening technology was applied in this block. The fracture width of Lingshui gas field was predicted with finite element method, which considered the effect of wellbore pressure, in-situ stress, seepage fluid and pore pressure. The simulation results showed that the fracture width of Lingshui block ranged from 0 to 464 μm. Based on the prediction results of fracture width, the particle size distribution of lost circulation material (LCM) was selected with dynamic fracture width testing device. The results indicated that the D50 rule has the best sealing efficiency. The optimized LCM formula had better compatibility performance with water-based drilling fluid. The sealing results illustrated that invasion depth of seepage loss was smaller than 0.3 cm and the pressure bearing capacity of fracture reached to 17 MPa.