bluuebunny/crossref_metadata_2025_split huggingface dataset:
A new computational method for transversely isotropic elastic boundary conditions
Authors: Zhang WX , Yang LM 
Published: April 2020

Abstract
Since the transversely isotropic elastic materials have been widely used in the fields of architecture, aviation and so on, the related mechanical calculation has become an important research topic. One of the most commonly used method is the semi inverse method with displacement or stress as the basic variable. However, this method can not describe the local deformation. In this paper, based on the variational principle and the method of separating variables, the basic equations of symplectic system are established. According to the characteristics of Hamiltonian matrix operators, all analytical solutions of transversely isotropic elastic plane are found, and a complete solution space is established. In the example, the boundary problem is studied, and the first five non-zero eigenvalue are obtained.
Numerical computation on the scattering sound field distribution of rigid sphere in shallow water waveguide
Authors: Jihui Wang , Guijuan Li , Bing Jia , Zhenshan Wang , Rui Wang 
Published: April 2020

Abstract
Numerical computational model about the scattering fields of rigid sphere in shallow water waveguide is accomplished using boundary element method and normal mode model. A kind of modified CHIEF boundary element method is used to solve the non-uniqueness problem at characteristic frequency for exterior sound field computation. The green function for shallow water waveguide acoustic wave propagation is modified based on the normal mode model. The acoustic pressure in the far field yields Kirchhoff Helmholtz equation and the scattering sound field distribution of rigid sphere in a Pekeris waveguide is achieved. Also the scattering sound field distribution of rigid sphere in the free field is calculated. The results indicate that the waveguide influences the sound propagation, and it need to pay attention during the test.
Research on Quality Evaluation Method of TRD Cement-soil Continuous Wall Based on Analytic Hierarchy Process
Authors: Ju Song , Liu Yankai , Dong Zhanwu , Gui Dazhuang 
Published: April 2020

Abstract
In order to accurately evaluate the wall quality of cement-soil mixing wall by TRD method and reduce the risk of foundation pit excavation, this paper proposes a comprehensive evaluation method of wall quality. Based on strength analysis, impermeability analysis, borehole TV analysis and electromagnetic borehole radar analysis, the main influencing factors of TRD cement soil wall quality are analyzed and determined. Using the analytic hierarchy process, the hierarchical structure model of the wall quality evaluation index system is established and the evaluation factors are quantified. The fuzzy comprehensive evaluation method is used to evaluate the index factors. By analyzing the evaluation results, the evaluation grade standards of excellent, good, medium and poor reflecting the wall quality are established. The evaluation system and grade standard are used to evaluate the wall quality of waterproof curtain in a station foundation pit of Qingdao metro. The actual excavation of the foundation pit is basically consistent with the evaluation results. It has preliminarily realized a change from qualitative and empirical to scientific and half quantitative. The research results can be promoted and applied to the similar TRD cement soil mixing wall project in the future.
Study on How to Improve Surface Water Quality Monitoring
Authors: Chen Dongxu , Liu Hua , Cai Erjian , Wu Hui 
Published: April 2020

Abstract
Under the guidance of the Party Central Committee and the State Council, China’s environmental protection initiatives have made remarkable achievements, both in terms of system optimization and in terms of solving problems left by history. The masses also put forward suggestions and opinions on the achievements of China’s environmental protection departments, and the public awareness of environmental protection has been constantly enhanced. In this context, more and more enterprises and individuals begin to pay attention to the changes in environmental quality. Surface water quality monitoring, as an important task to clarify the environmental quality of surface water, provides a wealth of information for the relevant technical personnel to clarify the change of environmental quality. Therefore, in the process of design and production, our environmental protection personnel and other industry engineers will put forward the requirements for quality monitoring of surface water where the project is located, and different industries have different requirements for their testing accuracy. It can be seen that improving surface water quality monitoring has become an urgent task for environmental protection engineers.
Research of friction loss for setting slurry flow in inclined pipe
Authors: Tieli Wang 
Published: April 2020

Abstract
By analyzing the momentum transfer and velocity both of solid particles and water over the acceleration time of solid particles, and interplay mechanism of water and solid particles, a new model is proposed to predict friction loss for setting slurry flow in inclined pipe. Based on the experimental data of some scholars, the hydraulic gradient formulas of the author and other inclined pipelines are verified. The results show that the deviation between the theoretical and measured values of the model proposed by the author is the smallest, not more than 13.33%. At last the causes of error is analysed.
Dynamic Analysis of Influence of Soil Damping Nonlinearity on Foundation Stability
Authors: Yihe Yin , Xin Tian , Lama MILAN , Zhiying Zhang 
Published: April 2020

Abstract
Aiming at the sliding instability problem of foundation-based system under the action of earthquake and other dynamics, nonlinear cusp catastrophe analysis model which conforms the actual working behavior of foundation-based system is established by using the catastrophe theory. It describes the whole process of catastrophic instability of the system and analyze the basic stability. Based on the research of many nonlinear factors contained in the system that has been considered so far, the inherent influence of the nonlinear factors of soil damping in the actual working environment is considered and analyzed for the first time. Under the linear, quadratic and cubic nonlinear conditions, the most general expression of soil damping reflecting the system’s instability and catastrophe of the system bifurcation set is derived. The results show that the nonlinear characteristics of damping directly affect the correct evaluation of the ultimate bearing capacity of the foundation. Although ignoring the nonlinear influence of damping will not change its catastrophic properties, but will underestimate the ultimate bearing capacity of the foundation.
Study on the blast resistance of concrete beams reinforced with ultra-high-molecular-weight polyethylene (UHMWPE) fibers
Authors: Zhang Zhao , Yan Luhui , He Zhiyang , Ma Jiajun , Wang Huiming 
Published: April 2020

Abstract
Experiments and numerical simulations were performed to investigate the blast resistance of concrete beams reinforced with ultra-high-molecular-weight polyethylene (UHMWPE) fibers under close-in blast loads. The blast tests were carried out on fiber- reinforced concrete beams with a volume content of 0.7% at three scaled distances (i.e., 0.36, 0.40, and 0.47 m/kg1/3) and the damage results were compared with the characteristics of normal reinforced concrete beams. The results show that the UHMWPE fibers can decrease the damage degree of the beams, hinder the generation and development of cracks, and prevent spalling on the back surface, indicating that the blast resistance of UHMWPE-fiber-reinforced concrete beams is better than that of normal reinforced concrete beams with the same strength grade. Due to the addition of fibers, the improvement in the damage resistance to blast loads at the bottom surface of the beam is better than that at the top surface. A 3D blast-test model was established and calculated using the LS-DYNA software. A numerical study of the extended scaled distances was carried out to determine the change law of the damage features based on it. When the scaled distance is greater than 0.41 kg/m1/3, the damage mode of the beam begins to change from the mode of large damage at the bottom and small damage at the top to the mode involving large damage at the top and small damage at the bottom.
Experimental study on Shear behaviors of RC beams strengthened with ECC layers
Authors: Wang Guan , Zhu Fawang , Yang Caiqian 
Published: April 2020

Abstract
The experimental study on shear behaviors of reinforced concrete (RC) beams externally strengthened with Engineered Cementitious Composite (ECC) layers were conducted and analyzed. The RC beams were designed and fabricated without stirrups. ECC was sprayed onto the sides of the beams to the designed thicknesses which were 20 mm, and 40 mm. A series of four-point bending experiments were performed to study and analyze the shear behavior of the specimens. The thickness of ECC layers and shear span-to-depth ratios were considered and analyzed. It is an effective way for the shear strengthening of RC beams with ECC layers. The ECC layers’ thickness should be restricted to override the debonding between ECC layers and RC beam or to strengthen an RC beam into an under reinforced one. Fibre Bragg Grating sensors can be used to measure the development of shear strain of the strengthened specimens.
Improvement technology research on red clay of Yuzhan expressway
Authors: Zhang Jiaying 
Published: April 2020

Abstract
There is a lot of red clay along the Yuzhan expressway. In order to use local materials, improve the efficiency of economy and protect the environment, it is proposed to use red clay of Guangxi as roadbed material. Through the experiments, the influence of different mix amount of sand and lime on red clay properties, feasibility of soil improvement is demonstrated and the influence regularities of strength index are analyzed. The results provide important reference for design and construction of expressway.
Study of factors affecting bond behavior between stainless steel rebar and concrete
Authors: Li Qingfu , Xiang Qunhua , Wang Jinwei , Lei Jia 
Published: April 2020

Abstract
With the improvement of smelting process of stainless steel, stainless steel has great advantages in economy, rigidity and durability, so it has been widely used in recent years. However, the properties of stainless steel rebar are very different from those of traditional steel rebar. The stainless steel rebar has no obvious yield strength, and its ductility is excellent. It is essential to determine whether stainless steel rebar can be used in building structures. The bond behavior between stainless rebar and concrete is the basic issue to study before the application of stainless steel. Therefore, the effects of concrete strength, diameter of reinforcement, relative thickness of protective layer, anchorage length of stainless steel bar and casting method on the bond force between the stainless steel bar and concrete were analyzed through central pulling tests of 39 specimens. The results showed that the stainless steel rebar has high bond force with concrete and the empirical formula of bond force between stainless steel rebar and concrete was established based on the regression analysis of the experimental data.
Research on Improvement of Red Clay in a Highway Engineering
Authors: Fu Jianbao 
Published: April 2020

Abstract
Red clay generally has a high liquid limit and is easy to shrink due to water loss. It is easy to cause some engineering accidents. If red clay is used as subgrade filler, it must be studied. This paper studied the red clay properties of a highway in southwest China and improved the red clay by adding quicklime. Research results show that the red clay is high liquid limit soil and the CBR does not meet the specification requirement. It can’t be directly used as filler for highway. After improved by adding quicklime, the red clay changed from high liquid limit soil to non-high liquid limit soil and the CBR increased rapidly. In the supporting project, red clay was improved by adding 5% quicklime. Then the liquid limit and CBR of the modified red clay meet the specification requirements. And the red clay’s water loss cracking has also been greatly improved.
Characteristics and development trend of secondary geological disasters caused by earthquakes
Authors: Zhou ChangXian , Zheng ShaoPeng , Ye YouQuan , Wang Hao , Fu Ping 
Published: April 2020

Abstract
the secondary geological disasters caused by earthquakes are the most developed, the largest in scale and the most destructive.
Based on the large earthquakes in the world in recent years, the secondary geological disasters caused by earthquakes and their damages are analyzed
At the same time, the development trend of geological hazards in the future is predicted.
Study on the buried oyster reefs and environmental changes with the underlying muddy sediments on the Northwest Coast of Bohai Bay
Authors: Jing Fang , Fu Wang , Liping Zhang , Shuo Yang , Tianjiao Wang , Yufei Liu , Yang Li 
Published: April 2020

Abstract
The Electric Conductivity of Stirred Clayey sediments into Water (EC), pH values and micropalaeontological studies of the underlying muddy sediments of the buried oyster reefs in Dawuzhuang and Airport sites, northwest coastal plain of Bohai Bay revealed a difference of the depositional environments of the underlying mud units in two sites. In Dawuzhuang, from the underlying to the overlying muds, environment changed from subtidal to the lower intertidal zone, which presented a falling tendency of relative sea level. However, the underlying mud in Airport site occurred in the intertidal and changed upwards to the reef body as being lagoonal environment. These indicate that the relative sea level fall resulted in intertidal environment in Dawuzhuang and a change from the open intertidal to relatively isolated intertidal lagoon environment in Airport site as a diatom thriving as well during the mid-Holocene all form the important reasons for the oyster reef development.
Brief Analysis of the Application and Limitation of BIM in Project Life Cycle Management
Authors: Li Yangliang 
Published: April 2020

Abstract
BIM (building information model) with its advantages of information integration and excellent visualization effect has created considerable economic benefits and significantly improved work efficiency in construction practice. Although BIM is widely regarded as the future of China's construction industry, there are many obstacles to its application in China. This paper briefly analyzes the application status and main obstacles of BIM in China. At the end of the paper, the author provides some suggestions from different aspects.
Application of In-situ Cold Recycled Subbase in Highway Maintenance in Loess Area
Authors: Liu Liping , Liu Wanfeng , Yang Yang , Guo Jianbo , Bao Caixia 
Published: April 2020

Abstract
This paper studies the application of the in-situ cold recycled subbase technology of the asphalt pavement with using cement as an additive. From the two aspects of analysis and practical application, the construction process of in-situ cold recycling of asphalt pavement is studied specifically. Moreover, combined with the engineering practice, and through the introduction of the cold recycled construction process and the analysis of the test results, this paper expounds the specific construction process of the cold recycled subbase, and points out the existing problems and matters needing attention in the project construction.
Evaluation Method and Practical Application Research of Green Building Energy-saving Design Scheme
Authors: Ying Guo 
Published: April 2020

Abstract
In order to achieve sustainable development of the construction industry, green building has become a major development direction in architectural design. At the same time, in order to ensure that the green building design can achieve the desired energy-saving effect, it is necessary to adopt a scientific evaluation method to comprehensively analyze and evaluate the green energy-saving design. The fundamental purpose of green building energy-saving design and evaluation of its design scheme is to be applied in the construction project. Therefore, it is necessary to fully understand the evaluation methods and evaluation criteria of green building energy-saving design, and also apply these methods to engineering. The design and construction of the project will promote the development of China’s construction industry towards green and low carbon.
A bird's eye of Prefabricated Construction based on bibliometric analysis from 2010 to 2019
Authors: Huang Yunping , Yan Jinjiang , Chen Lingling 
Published: April 2020

Abstract
Prefabricated construction (PC) is an effective way to sovle the unsustainable issues caused by conventional construction methods. To analyse the status and frontier dynamics of PC, this paper provides a bibliometric analysis of 1162 papers on PC publications from the Web of Science (WoS) database for the 2010-2019 period. In the paper, we firstly investigate the publication and citation structure of PC, then co-authorship network of countries/regions and institutes are detected as well. Finally, cited sources and research topics are explored by conducting co-citation network and co-occurrence network, respectively. This paper provides useful and new insights to summarize the progress of PC in a bird’s eye and brings a reference to the future development of PC.
Key Elements of Building Information Modeling Technology (BIM) and Green Building Design
Authors: Zhangqi  
Published: April 2020

Abstract
In order to promote the smooth transformation and transformation of China’s construction industry and achieve sustainable development, green building design has become one of the main development trends of architectural design. Designers should enhance their awareness of energy conservation and environmental protection, actively apply advanced technical methods, optimize design solutions, and improve the energy saving and consumption reduction effects of architectural design. BIM building information modeling technology can highly integrate a variety of building information through 3D modeling, providing technical support for green building design because of its good visibility and intuitiveness.
Study On Site Selection of Service Facilities For Tourist Highway Campsites: A Case Study of Songhua Lake Area in Jilin Province
Authors: Xiaoyun QIU , Longhai YANG , Gang WANG , Bin TIAN 
Published: April 2020

Abstract
The rapid rise of campsites tourism mode leads to the increasingly obvious problem of site selection for existing tourist highway campsites. According to the characteristics of service facilities of China’s tourist highway campsites, this paper adopt the centre-of-gravity method and AHP method to carry out site selection planning. This paper first define the concept of service facilities of tourist highway campsites and summarize the influencing factors and principles of site selection of tourist highway campsites. Then, a simple and effective method combining the centre-of-gravity method and AHP method for site selection of tourist highway campsites is proposed. The primary site selection of campsites is based on the centre-of-gravity method. Finally, taking the Songhua Lake area of Jilin province as an example. This paper calculates the site selection of tourist highway campsites, further validates the feasibility of the site selection method, and provides theoretical support and reference method for the site selection of tourist highway campsites in the future.
Study on Establishing Safety Standard System for Water Transport Engineering
Authors: Zhang Shijie , Li Yan , He Zhi , Xu Jinghan , Deng Di 
Published: April 2020

Abstract
Based on the present situation of safety standards for water transportation engineering in China, this paper comprehensively compares the advantages and disadvantages of domestic and foreign standards and standards system, and studies and builds the framework diagram of safety standards for water transportation engineering. Get to know and sort out the safety production standards for water transportation projects that have been issued in China. It discusses the new situation of the development of safe production in China, and the requirements of safety standards, safety standardization and safety standard system in the water transportation industry. The comparative study of water transport engineering standards and standards system at home and abroad is carried out. According to the requirements of relevant standards, this paper discusses the construction of the safety standard architecture of water transportation engineering, studies and proposes the safety standard architecture of water transportation engineering, which is composed of three dimensions: the type of water transportation engineering, the stages of the whole life cycle of the engineering, and the content involved in safety production, and analyzes the advantages of this architecture. This paper provides basic research for establishing the safety standard system table of water transportation engineering. The research results are of great significance to promote the establishment and perfection of the safety professional standard system, and to promote the construction of safety standardization in water transportation and port industry.
Application of 3D Laser Scanning Technology in Simulating Dam-Breaking Flood Routing
Authors: Fangjin Xiong , Shaobing Wang , Minlin Yu 
Published: April 2020

Abstract
3D laser scanning technology (3D-LST) is a new measuring technology that has been developed rapidly in recent years, which is characterized by obtaining 3D space coordinates of the object surface with its high speed, high accuracy and high density and the object and without contacting with the measured object. It has been increasingly and extensively applied in a variety of fields of engineering^. In this paper, the analysis of 3D-LST in the dam-breaking flood routing analysis and its application in emergency rescue has been discussed. And then, a dam breaking and flood routing model has been established through scanning the dam and its downstream terrain with a 3D laser scanner, so as to provide accurate data basis for dam relief and disaster relief.
Study on the Design of Slow Travel System of Tourist Highway Service Facilities
Authors: Zhang Xiqiao , Luo Yule , Wang Gang , Tian Bing 
Published: April 2020

Abstract
As an important carrier of tourism development, tourism highway also develops rapidly, and the construction of service facilities also rises gradually. The research on the slow travel system of tourism highway service facilities will help to achieve the coordinated development of eco-tourism and green development. Based on the concept of tourism highway service facilities, this paper defines and classifies the slow traffic system of tourism highway service facilities, and studies the slow traffic system of tourism highway service facilities from three aspects of slow traffic line design, safety facilities design and sign system design, and puts forward relevant design suggestions. Finally, through the field investigation of Yanming Lake Wetland Park in Jilin province, the slow system design is carried out, and the overall design drawing is proposed. Through the analysis and research of this paper, it can improve Chinese design system of slow traffic under the service facilities of tourism highway, and has the corresponding guiding role for the design of different slow traffic systems.