bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simulation model for risk analysis of construction progress of water resources and hydropower projects
Authors: Yongrong Qin 
Published: July 2020

Abstract
There are many uncertainties in the construction process of water conservancy and hydropower projects. The risk analysis of project completion should consider the constraints and overlaps of various resource allocations and procedures. A fault tree risk analysis method is used to comprehensively evaluate the risks of various factors affecting the construction progress of the project. A large-scale water conservancy project construction schedule risk estimation model is solved using an appropriate method, which improves the calculation and application of schedule risk estimation, proposes control concepts of baseline schedule risk and revised schedule risk, and is verified using engineering examples.
Vibration control analysis of active tuned mass damper for large span buildings under simple spectrum excitation
Authors: Xie Yi 
Published: July 2020

Abstract
Aiming at the defect that the traditional damper has little anti-vibration control effect, an active frequency-modulated mass damper anti-vibration control method for large-span buildings under simple spectrum excitation was proposed. The anti-vibration matrix of active Tuned mass damper was established, the vibration vector displacement was calculated, the matrix transformation expression was designed, the vibration response value was calculated, the effect of vibration response on anti-vibration displacement was analyzed, then the stability and coordination control of active tuned mass damper were realized. A comparative experiment was presented to verify that the proposed method could increase the amplitude of anti-vibration control of the damper in the application.
Fuzzy Comprehensive Evaluation of Subway Shield Construction Risk Based on WSR and Combined Weighting
Authors: Zhao Jinxian , Sun Fei , Meng Wei 
Published: July 2020

Abstract
Aiming at the problem of risk evaluation of subway shield construction, a fuzzy comprehensive evaluation method based on WSR and combined weighting is proposed. Firstly, using the WSR methodology to analyze and select the risk indicators of the subway shield system from the three dimensions of “Wuli - Shili - Renli”, a risk assessment index system for subway shield construction was constructed. Then, fuzzy theory is introduced to establish a comprehensive evaluation model of subway shield construction based on combined weighting. Through the multiplication synthesis method, the weight values of the analytic hierarchy process and the entropy weight method are combined, and the principle of fuzzy relation synthesis is used to comprehensively evaluate the membership level. In the end, the shield tunnel in Qingdao Metro Line X is used as an example to calculate and demonstrate. The results show that the risk is at the “general” level, which is basically consistent with the actual situation. It shows the feasibility and applicability of the established evaluation method, which has guiding significance for reducing the risk of subway shield construction.
Estimation and Analysis of Water Environment Capacity: A Case Study of Huaxi Watershed in Guizhou Province
Authors: Dong Haiyang , Chong Lin , Guo Cong 
Published: July 2020

Abstract
A one-dimensional water quality mathematical model was put forward to calculate the water environmental carrying capacity(WECC) for rivers in Huaxi District. The river system of Huaxi district is divided into four basins. Based on field observation and numerical simulation, the pollutant degradation coefficients and diffusion coefficient for different river districts were determined to explore the WECCs of COD, NH3-N and TP. It reflects the pollutant carrying capacity of different basins under the hydrological condition of 90% guarantee rate, which plays an important role in pollution control and water environmental protection.
Seismic damage analysis of RC frames based on La Borderie model
Authors: Li Zheng , Ren Qingying 
Published: July 2020

Abstract
The refined uniaxial La Borderie damage model for concrete is implemented into general-purpose FEA software ABAQUS through the user material subroutine VUMAT. Then, in the platform ABAQUS, the seismic damage analysis of a reinforced concrete (RC) multi-story frame structure is conducted by using the damage model for concrete. The results indicate that the simulation method adopted in the present study can capture the damage and failure process of the RC frame structures. It is effective to identify the weak positions of RC frame structures under earthquake loading.
Stability analysis of gravity quay with an application of furrowed crushed-stone subgrades
Authors: Li Jingshuang 
Published: July 2020

Abstract
A new type of furrowed crushed-stone cushion is introduced for a caisson-structured quay. Numerical analysis was conducted to examine the stability, stress and sliding differences between quay models with furrowed and fully-paved crushed-stone cushion. The numerical analysis results show the difference between the safety factors is minimal. The stress states of two cushion structures are basically the same. The same sliding is found for both cushion structures. It is concluded that the subgrade with furrowed crushed-stone cushion will not adversely affect the stability of caisson-structured quay.
Production and Construction Technology of the Prefabricated Cascade-Style Special-Shaped Washroom Caisson
Authors: Baoquan Yin , Xiaoyan Wang , Yong Wu 
Published: July 2020

Abstract
Technical research was performed on the production and construction of the fully fabricated cascade-style special-shaped washroom caisson. The BIM technology was used to design the structure of cascade style special-shaped caisson, the arrangement of reinforcing steels, the embedded pipelines and so on. It is a favorable manual to instruct the intelligent production of prefabricated special-shaped washroom caissons. In this thesis, a kind of highly impermeable and cost-saving concrete was developed. It can greatly improve the impermeability of the structural parts. The molding technique of PE film rough surface in conical groove was also developed to improve the molding effect of rough surfaces on the side of structural parts. The researched production and construction technology for prefabricated cascade style special-shaped washroom caisson had been applied in a number of assembly construction projects. It guaranteed the quality and efficiency of prefabricated special-shaped caisson, and thus creating distinct economic and social benefits.
Research Status of Mechanical Properties of Metal-faced Sandwich Panels for Building Construction
Authors: Yigang Li , Zhen Yang , Xiang Li , Weibo Zhao , Haitao Liu 
Published: July 2020

Abstract
This paper describes the classification and mechanical characteristics of metal-faced sandwich panels for construction, the research methods of mechanical properties of metal-faced sandwich panels, and the research status of bending bearing capacity, wind load resistance and impact resistance of metal-faced sandwich panels. It can be seen from this that the research on mechanical properties of metal-faced sandwich panels has been relatively mature at present. In order to make the metal-faced sandwich panel more widely used, further research is needed on the incomplete bonding between layers and the mechanical properties of the metal-faced sandwich panel under special circumstances such as fire and low temperature.
Solving vibration characteristics of the space straight bridge based on the auxiliary system transfer matrix method
Authors: Yang Fan , Feng Tao 
Published: July 2020

Abstract
The transfer relationship between two ends of the bar was studied by using an auxiliary system with one end fixed and the other free. This transfer matrix method was the transfer matrix method of the auxiliary system. The method has high accuracy and was easy to calculate. In this paper, the vibration transfer matrix of spatial linear beam was derived based on discrete model and transfer matrix method of auxiliary system. Taking a span simply supported beam bridge as an example, the program was applied to calculate the natural vibration frequency and mode of spatial linear bridge. It demonstrates that this method was effective.
Analysis of bearing capacity of the six-sided plate pavement structure considering connection
Authors: Yu Jiahao , Zhao Jiaxin , Jin Tongyu , Zhang Sensen , Yang Yuanyuan 
Published: July 2020

Abstract
In order to study the bearing capacity of the six-sided plate pavement structure considering the connection relationship between six-sided plates, a finite element model of the six-sided plate pavement was established in ABAQUS software. Based on the ABAQUS finite element model, we focused on the influence of the thickness of the six-sided plate and the length of the connecting hooks on the carrying capacity of the six-sided plate pavement. By using the control variable method for simulation and analysis, the calculated results are reasonable, indicating that these two factors have a certain effect on the bearing capacity of the six-sided plate pavement structure.
Spawning flow velocity demand for representative fish species in the upper Yangtze River
Authors: Xu Lisi , Yin Zhengjie 
Published: July 2020

AbstractTo mitigate possible negative impacts of cascade dams on spawning of rare and endemic fish species in the national nature reserve downstream of these dams, spawning flow velocity demand for fish need to be considered in the cascade dams operation. Based on the cascade dams constructed in the upper Yangtze River, Coreius Heterodon was selected as the representative fish species. According to the drifting distance of fish eggs, the flow velocity characteristics at the spawning location of Coreius Heterodon were analysed with the unsteady flow mathematical model. The results show that a large flow velocity increase process is good for Coreius Heterodon spawning, and the process of velocity fluctuation is similar before spawning. The cumulative velocity amplitude, the cumulative number of fluctuations and the maximum velocity amplitude are closely correlation with the spawning number. The velocity in spawning period is affected by the dams operation, and the suitable range of velocity is changed from [0.8m/s, 1.2m/s] to [1.1m/s, 1.4m/s]. The results can provide the basis for future ecological operation based on flow velocity index of the cascade dams.
Research of The People and Livestock Drinking Water Technology with Wind and Solar Energy Mutual-complementing Power
Authors: Zhu Junfeng , Wang Xingtian , Liu Yuewen 
Published: July 2020

Abstract
There is a shortage of conventional energy in pastoral areas, especially due to the limitations of the power grid. But there are abundant renewable energy reserves. The northern remote pastoral areas are rich in wind energy and solar energy resources which has become the main method to solve the safety problem of drinking water in pastoral and rural areas. But the instability of wind and solar energy, and one single power can’t meet the needs of the pastoral area water supply well, so high reliability water supply mode with wind and solar energy mutual-complementing power in pastoral areas has been proposed.
Influence of nuclear island on seismic acceleration response on soft rock sites
Authors: Li Furong , Zhao Kai , Chen Guoxing 
Published: July 2020

Abstract
As the site resources of nuclear power plant are getting increasingly scarce day by day, soft rock sites will be gradually used for nuclear power plant construction. In this paper, a three-dimensional finite element model for the nuclear island structure on soft rock site (based on the horizontal layered soft rock site) was established using the ABAQUS finite element software by adopting the modified Davidenkov constitutive model with configuration of viscoelastic artificial boundary and consideration of the embedding effect. This model was used to simulate the nonlinear characteristics of the soft rock site and comparatively analyse the influence of the nuclear island on the seismic acceleration response of soft rock site. The results show that the nuclear island increases the peak acceleration of the soft rock site. As the input ground motion increases, the ground surface peak acceleration increases accordingly, but due to the nonlinear effect of the soft rock site, the acceleration amplification factor shows a decreasing trend. Under the far-field ground motion, the ground surface acceleration increases significantly and may cause a strong potential destruction to the nuclear island. A non-free field (with a nuclear island) moves the ground surface acceleration response spectrum slightly toward the long-period direction. Under the near-field ground motion enriched with high-frequency components, the ground surface peak acceleration response spectrum caused by the nuclear island shows an increasing trend. Our research conclusions can provide useful reference for both the site selection and aseismic design of nuclear power plants.
The Use of Distance Between Soil Layers in Predicting the Hydraulic Conductivity of Granular Soils
Authors: Alsakran Mohamed Ahmad , Zhu Jun-Gao 
Published: July 2020

Abstract
This study presents a new empirical approach that can be used to determine the hydraulic conductivity of saturated granular soils. This empirical approach can be obtained through the relationship between the uniformity coefficient of the soil (Cu) and the distance between soil layers (S). For the granular filter materials that have the same particle size distribution, there can be different distances between layers of the soil, depending upon the soil’s density. The distance between soil layers can be obtained by dividing the length of the imaginary line by the number of intersected particles within the length. By using the distance between soil layers, the whole grain size distribution and the soil porosity are taken into consideration, which reflects the degree of compaction. Therefore, this empirical approach is a good representation of hydraulic conductivity.
Homecoming: the Origin and Destination of Architectural Design
Authors: Wang Jihong , Zheng Dongjun 
Published: July 2020

Abstract
Under the background of globalization and urbanization in the 21st century, where will architectural design go? The architect is confused by these problems. The concept of “homecoming” expounded in this paper is that the objectivity and necessity of the homecoming will exist in people’s spiritual life are pointed out from the aspects of literary concept, philosophical dimension and architectural design, in order to alleviate modern people’s state of wandering with no one to depend upon, and it is also a need for cultural root seeking. However, homecoming is not a real sense of returning to the hometown, but a returning in a spiritual sense. Homecoming is a kind of situation consciousness, which builds a bridge between the past and the present by reason and emotion to express the attitudes towards the tradition in order to confront the urbanization process completely separated from the tradition. In this paper, reflection was positively conducted on the issues such as architectural ethics, architectural space and architectural language in the process of intense urbanization, with a view to putting forward personal opinions and exploring the future direction of architectural design.
Application Research on Prefabricated Construction Promoting Modernization Development of Construction Industry
Authors: Zhong Tao , Zhang Yinhui , Wu Xinjie 
Published: July 2020

Abstract
Prefabricated construction as a new type of building which can save resources and effectively improve the ecological environment, conforms to the requirements of national strategic development, and it is the main direction of transformation and upgrading of Chinese construction industry. This paper starts with the technical difficulties that prefabricated construction faces in the process of propulsion. The technical system, design concept, industrial development and talent demand of prefabricated construction are systematically studied, and coping strategies to solve problems are explored. Besides, it presents the overall framework of application research on talent training mechanism, and analyze key technical points. The multiple element collaborative scheme is put forward. In the process of modernization of the construction industry, how to promote the transformation and upgrading of the construction industry in a more standardized, safe, efficient and environmentally friendly way is our further research direction and the significance of this paper.
A Boundary Integral Method Based on the Symplectic System
Authors: Zhang WX , Yang LM 
Published: July 2020

Abstract
In this paper, we introduce a numerical boundary integral approach to study mechanical problems of curvilinear boundaries, multi-materials and fractures of solids and structures. Based on the equations of the eigensolution expansion and the weight functions of the basic solutions, the integral weighted equations of the undetermined coefficients can be set up by using the boundary conditions and the continuity conditions between different materials. Due to the completeness of the solution space and the independent property between the eigensolutions, the existence and the uniqueness of the solution of the boundary integral equations are seriously guaranteed. Therefore, the problems can be solved numerically by this approach.
An Eigensolution Method for Isotropic Elasticity
Authors: Zhang WX , Yang LM 
Published: July 2020

Abstract
With the wide application of isotropic elastic solid in industrial production and people’s daily life, the related mechanical calculation has become an important research topic at home and abroad. Scholars have put forward many research methods, among which the most commonly used is the semi inverse method with displacement or stress as the basic variable. However, this method can not get complete solution space on the premise of some assumptions. In this paper, based on the variational principle and Hamiltonian matrix operator, we propose the eigensolution method, and all analytical solutions of isotropic elastic plane problems are obtained.
The analysis application of ERP system in the electric power enterprises purchase management
Authors: Yue Qiao 
Published: July 2020

Abstract
In the management thought of ERP, organization is a collaborative system. It is a system that applies modern enterprise management thought, combines communication technology and network technology to set up a system that can effectively communicate information and give orders to the superior, upload the inferior, and exchange information within the organization. This system is gradually widely used in all aspects of enterprise management. This paper mainly expounds the response of ERP in procurement management, the information data is more optimized and the management is more convenient.
The Improvement of Environment in Huaihe River Basin-a Perspective of Ecological Compensation
Authors: Cheng Yali 
Published: July 2020

Abstract
The article explores the approaches to improve the urban environment in Huaihe River basin from the perspective of the ecological compensation system. First, it expounds the origin of “ecological compensation” in ecology and economics and then discusses its legal connotations and reviews the courses of national ecological compensation legislation. Second, the article illustrates the necessity of ecological compensation legislation in Huaihe River basin from revealing the current status of its urban environment and the legislative process. Finally, the article proposes three interrelated macro approaches to improve urban environment in Huaihe River basin: decentralization of government administration, participation of public and private enterprises and involvement of social communities.
Analysis of soil salinization and influence of groundwater depth in the north of Shandong Marine Plain
Authors: Li Shanhai , Qin Peng 
Published: July 2020

Abstract
The present situation of Soil Salinization in the marine plain area of North Shandong Province is classified according to the content of salt, and the influence of groundwater depth on soil salinization is analyzed, it is determined that 5.5-6.0 m before and 3.0-3.5 m after flood season are the “reasonable depth of groundwater”.
Analysis of Seismic Behavior of the Ring-stiffeners Bird-Beak SHS Joint
Authors: Yang Yinghua , Chen Sheng 
Published: July 2020

Abstract
This paper studied bird-beak square hollow T-joint and ring-stiffened bird-beak square hollow T-joints, and the finite element model of the joint were established with ABAQUS, to analyze the enhancing effect of the joint bearing capacity when each parameter changes, and analyzed the seismic performance of the joint under cyclic axial loading, including its ultimate bearing capability, hysteretic behavior, deformation performance and failure modes. Some inclusions provide reference for engineering design.
Output Prediction of waste concrete based on GM (1, 1)
Authors: Yin Jian , Du Ruoxi , Ma Xinchen , Zhou Zihang , Zhang Yuxuan , Luo Wenjie 
Published: July 2020

Abstract
In order to promote efficient use of waste concrete in Chongqing, the building area estimation method is employed to estimate the waste concrete output from 2012 to 2018, and the gray model is used to predict the waste concrete output from 2019 to 2023. By Matlab programming, the waste concrete output in Chongqing will reach 3181.14t in 2023, which is 1.44 times that in 2012. The results show that the gray model can accurately forecast the output of waste concrete in Chongqing in the short and medium term.
Construction technology of installation and support system of high-rise prefabricated steel structure plant
Authors: Yao Shoutao , Chen Chen , Shen Binglong 
Published: July 2020

Abstract
The standardized plant project of Hongqi Industrial Park of Internet of things in Hefei adopts the composite assembled structural system of steel structure and laminated plate. In this paper, the project is mainly carried out from the perspectives of assembly construction and installation, rapid support system design and finite element analysis of angle steel truss, reflecting the advantages of assembly structure, the rationality and enthusiasm of the construction mode, and it’s favorable for the development of buildings in China.
The crucial techniques of water leakage treatment in operating highway tunnel
Authors: Shijie Zhang , Guyi Zhan , Deming Li , Shuyi Wen , fei Sun , Chao Wang 
Published: July 2020

Abstract
Tunnel leakage is a common disaster in operating highway tunnel, causing many adverse effects on tunnel stability, cave facilities, traffic safety and the environment. Based on the causes and hazards of operating highway tunnel leakage, the tunnel leakage is divided into four types : construction joints leakage, lining crack leakage, fracture and cavity behind the lining leakage, concrete lining damage leakage. And the related crucial techniques and schemes were proposed. The achievements have been widely applied in Kaiyuan tunnel successfully, which offers a reference for similar tunnels.