bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on Gas Treatment Technology in The Work Surface of Dasher Coal Mine
Authors: Renjun Feng 
Published: May 2021

Abstract
Based on the principle of gas formation on the coal mining work surface, the article analyzes the main source of gas in the mining area of Dashe coal mine, finds out all kinds of problems existing in the pumping of the upper angle intring tube, and summarizes the real reasons for the backwind of the work surface and the gas exceeding the limit of the upper angle. In view of these reasons, combined with the principle of the formation of the upper angle gas, the mine on the upper angle intring process construction of the intring depth, height and interception area of the investigation, to obtain the best pumping value under different conditions, and according to the results of the inspection in the 21704 work surface test and transformation, and achieved a better pumping effect; According to the test results, the field effectively controls the work surface and the upper angle gas exceeding the limit, ensures the safe production of the work surface and the mine, and provides reference and reference for the treatment of the angle gas on the work surface under the same type of condition.
Disaster mechanism of Donghekou landslide in the Ms8.0 Wenchuan earthquake
Authors: Li Baolai , Zhang Hanliang , Ren Fengwen , Li Chunfeng 
Published: May 2021

Abstract
During the “512” Wenchuan earthquake, Donghekou, which is located at the end of the seismogenic structure, experienced serious collapse and slide, resulting in serious disasters. In this paper, based on the analysis of near-fault strong ground motion records of Wenchuan earthquake, the collection of seismogenic structural data and near-fault structural damage data, the disaster mechanism of Donghekou landslide is studied. The earthquake damage of Donghekou was caused by pulse-like ground motion and the surface rupture along the seismogenic structure. The surface rupture at the far end of Donghekou participated in the formation of the pulse-like ground motion.
Study on the Sedimentation of Power Branch Tunnel under Turbid Water Test
Authors: Zhou Heng , Fu Tingqin , Di Shengjie , Huang Peng , Sun Haitao 
Published: May 2021

Abstract
Combined with the actual project of a hydropower station, the turbid water test is used to verify the sedimentation of the power branch tunnel under the sand discharge conditions. The results show that under the sand discharge conditions, there are different degrees of siltation outside the recirculation zone of the power branch tunnels in the bifurcation section, and the siltation form is a delta siltation form. The sedimentation volume of the power branch tunnel is related to the sediment discharge flow in the sand discharge pipe. The greater the sediment tunnel flow, the greater the sedimentation in the cecum section of the power branch tunnel when the siltation balances.
Study on Flow Conditions for Navigation in Entrance Area and Connection Reach Downstream of the Lock of a New Hub
Authors: Wang Fei , An Xiaoyu 
Published: May 2021

Abstract
The entrance area and approach channel downstream of the lock of a new hub are located on the concave bank of a narrow river section with poor flow conditions for navigation. This paper studies their flow conditions for navigation at all levels of flow rate through the combination of the overall physical fixed bed model test and the remotely controlled self-propelled model ship, and finally puts forward a recommended scheme meeting the navigation requirement for reference in similar works by means of removal of the deflecting area downstream of the power station, dredging of the side shoal on the left bank and changes in the layout of the navigable wall.
Study on vibration law of complex foundation of terminal yard under dynamic consolidation
Authors: Yuan Fanglong , Wei Liuming 
Published: May 2021

Abstract
Hard shell layers with different thicknesses are usually distributed on the surface of terminal yard foundation, in order to ensure the safety of surrounding buildings and provide reasonable suggestions for dynamic compaction construction, it is urgent to study the vibration regularity of dynamic compaction. Based on the actual engineering project, this paper systematically studies the vibration law of hard shell foundation under different dynamic compaction construction parameters, it is concluded that: in the stage of hard shell breaking by column hammer, the peak value of vibration velocity is proportional to the thickness of hard shell layer, the peak vibration velocity decreases exponentially with the increase of distance, the minimum safe distance between the site and surrounding buildings is 37m to 58m; when the tamping energy is constant, the peak value of vibration velocity is inversely proportional to the diameter of hammer, on the premise of satisfying the reinforcement effect, large diameter hammer should be preferred; in the stage of flat hammer tamping foundation, the more tamping times, the greater the peak value of vibration velocity, and the amplitude of vibration velocity peak finally tends to be stable; in the stage of column hammer breaking hard shell layer, the peak value of vibration velocity decreases with the increase of tamping number, until the hard shell layer is damaged, the tamping energy is absorbed by the underlying soft clay layer, the peak value drops sharply.
Microzonation of ground motion parameters in Xianyang City
Authors: Li Baolai , Zhang Hanliang , Ren Fengwen , Li Chunfeng 
Published: May 2021

Abstract
In this paper, based on the study about the geology, seismology and conditions of site of seismic microzonation in Xianyang City, the microzonation of ground motion parameters in Xianyang City was finished, which can contribute to the aseismic fortification of the structure of in Xianyang.
Study on the Transformation Strategy of Chinese Classical Gardens in Urban Public Space: Take Anning Nanyuan as an Example
Authors: Chu Zijing , Zeng Tiancheng , Hu Liyan , Xie Jinfa , Gao Panyu 
Published: May 2021

Abstract
Currently, urban parks are booming, but many public gardens are out of touch with modern city life. It is necessary to find out the functional positioning of public gardens and carry out the transformation to conform to the development of urban life, so that it can play a unique value in the urban space where all kinds of modern landscapes are emerging. This paper takes Anning Nanyuan and its adjacent Baihua Park as examples to compare and analyze the characteristics of the internal crowd activities of the two, explore the similarities and differences between public classical gardens and modern parks as urban landscape spatial identities, and provide references for the scientific development of public classical gardens in the future.
Analysis and Improvement of Oblique Shear Phenomenon of Direct Shear Apparatus
Authors: Chao Teng , Zhijun Liu , Xuegang Wang , Liping He 
Published: May 2021

Abstract
Direct shear test is an important method to test the shear strength of soil. But the phenomenon of “oblique shear” often appears in the process of test, the soil sample subjected to eccentric pressure and uneven stress distribution, which affect the stability and accuracy of the test. This paper, starts from the construction of the direct shear apparatus, found that the relative displacement between the upper shear box and the axial pressure rod, is one important cause of “oblique shear”. Set the steel ring between the lower shear box and the push rod, dose not affect the shear force measurement and can completely fix the upper shear box. There is no relative displacement between the upper shear box and the rod used to apply axial pressure after improvement, and no the phenomenon of “oblique shear”. The experimental results are more stable and the coefficient of variation is smaller. The improvement scheme of the direct shear apparatus is simple, the improvement effect is obvious, and the stability and accuracy of the direct shear test are improved.
Force analysis and design of backfill retaining wall in large complex Goaf
Authors: Lu Hongbin , Yin Yu , Liu Yiming 
Published: May 2021

Abstract
The design of backfill retaining wall and construction technology are important factors that affect the cost, quality and safety of backfill. In order to reduce the cost, improve the quality and prevent the collapse of the Goaf, it calculates the total pressure and the maximum bending moment of the retaining wall with different filling height. Then it determines the filling height and the thickness of the retaining wall. Finally it studies the technical measures of dewatering, drainage and slurry running of backfill. The research shows that it should control the filling height within 1.5 m, the maximum thickness of backfill retaining wall should not be less than 3.8 m, it should connect the suspended dewatering pipe with the steel pipe embedded in the bottom of the retaining wall, and set up a drainage body to realize rapid dewatering and drainage, to reduce the pressure on the retaining wall.
Seismic analysis of concrete dam based on a simple damage model
Authors: Li Zheng 
Published: May 2021

Abstract
The present improved simple damage model is capable of capturing the unilateral effect and the more realistic softening curve of concrete by adopting different compressive and tensile evolution equations for concrete. And a user subroutine UMAT has been developed. Using the commercial code Abaqus, the analysis of seismic damage and response of the Koyna dam is performed. The results show the importance of considering the concrete damage in the seismic analysis of concrete dam.
An Research on Influencing Factors of Urban Land Use Efficiency Based on Tobit Model
Authors: Qiu Yingying , Song Hongling , Sheng Jia 
Published: May 2021

Abstract
The purpose of this research is to, by taking Wuhan city as an example, build Tobit model to calculate and analysis the influencing factors of urban land use efficiency so as to provide reference for improving urban land use efficiency. Methods employed include Tobit model. The results show that: 1)the significant factors influencing the land use efficiency of Wuhan city in 2014-2016 are urban per capita disposable income, urban fixed asset investment and urban population scale, 2) the influencing factors of urban land use efficiency and its influencing degree change dynamically at different time periods, and can be greatly influenced by land policy, 3)Tobit model can analyze the specific influencing factors of land use efficiency and the degree of influence from the quantitative point of view.
Analysis of constraints on data management of intelligent platform for smart building in the era of big data
Authors: Zhang Miyan , Lv Hui , Chen Huapeng , Hu Qingxia 
Published: May 2021

Abstract
With the rapid development of science and technology in China, data has become the core of various fields and industries. The construction industry is the first to bear the brunt. The merits and demerits of data management can directly determine whether smart buildings are worthy of the term “smart”. However, at present, the management level of most intelligent platform data of smart buildings is low, which cannot well adapt to and meet the development needs of smart buildings. Therefore, in view of the problems existing in the data management of the intelligent platform of the existing smart building in the era of big data, this paper conducts in-depth research and exploration, and points out the main restraining factors of the data management of the intelligent platform of the smart building. This paper expounds how to achieve more fine, safe and intelligent management of the data of intelligent platform of smart buildings in the era of big data.
Research on Key Technologies of big data analysis in smart irrigation area
Authors: Xuan Wang , Mimi Guo , Dengchang Ma 
Published: May 2021

Abstract
Several key data analysis technologies involved in irrigation area construction are discussed. A closed-loop large data management model for irrigation area is proposed, which includes data collection, data sharing, data management, data development and utilization. Five types of analysis, including statistical analysis, professional calculation, planning optimization, system simulation and intelligent algorithm, are compared, and an abnormal water intake behavior early warning, water supply and demand forecast, water-saving irrigation area evaluation and installation are constructed. Four typical application scenarios, such as intelligent research and judgment of abnormal operation, have certain reference value for promoting the construction of intelligent irrigation area.
Application of Big Data Technology in Water Conservancy Project Informatization Construction
Authors: Ni Xudong , Hou Xiaoyue 
Published: May 2021

Abstract
In order to better develop the cause of water conservancy project, improve the quality of water conservancy project construction, and bring more benefits to the public, this paper expounds the current situation of water conservancy project informatization construction in China through theoretical analysis, discusses the feasibility of big data in water conservancy project informatization construction, and points out the specific application of big data technology, so as to achieve the purpose of water conservancy project informatization construction.
The applied research on Tuned Liquid Damper in practical engineering with three-dimensional numerical simulation
Authors: Su Jizhi , Wu Hailiang , Zhang Wuchen , Liu Zhong , Wang Yamin , Cheng Nan 
Published: May 2021

Abstract
The practical application of high-position fire-fighting water tanks on the top-level of office buildings in State Grid Corporation of China is studied in this article. Fluid-solid-coupling mathematic models were established based on ABAQUS finite element analysis software to compare the calculational results in two-dimensional situations and three-dimensional ones. Meanwhile, a 22-storey frame-shear wall structure named Innovation Mansion was selected to discuss the vibration reduction effect of TLD. The results indicate that the fliud-solid-coupling analytical method could reflect the nonliear character of TLD-structure systerm precisely, and the aseismic ratios were 2%~5% variation between two-dimensional models and three-dimensional ones. The TLD has positive effects on controlling the structural seismic responses and the aseismic ratios could reach 10% around, besides, the TLD damping force not only offset the increased base-shear arose from its own weight, but also reduced the total base-shear.
Detection and Evaluation of the Bearing Capacity of Railway Steel Plate Girder Bridges
Authors: Liang Tengfei , Cheng Yingge 
Published: May 2021

Abstract
To ensure the safe operation of existing railway bridges, it is necessary to conduct comprehensive inspections of their bearing capacity and actual working conditions on a regular basis. In this paper, taking the 2# steel plate girder bridge on Qinglv Branch Heihe as an example, the appearance inspection, pier and abutment strength test, static load test and dynamic load test were carried out on this steel plate girder bridge, and the content and method of the comprehensive test of the steel plate girder bridge were explained; Based on the test results, the working condition of the bridge was evaluated, hoping to provide reference and reference for other similar bridge type inspection and reinforcement work.
Seismic analysis of multi-story frame office building based on SAP2000
Authors: Li Jiuyang , Li Fangqi , Cai Zhiru 
Published: May 2021

Abstract
Taking a multi-storey reinforced concrete frame structure office building as an example, the model analysis, response spectrum analysis and time history analysis of the whole structure are carried out by using the finite element software SAP2000, and the output results of y-pillar in different scenarios are analyzed. The results show that the overall seismic performance of the frame meets the design specifications, and the y-pillar structure meets the elastic and non yield characteristics of the large earthquake.
Resistance Deterioration Assessment of Concrete Beam Bridges based on Strain Monitoring Data
Authors: Wang Kangdi , Li Linguo 
Published: May 2021

Abstract
The bridge health monitoring system deployed in concrete beam bridge mostly uses strain sensors to collect data and evaluate the working state of bridges. However, the existing evaluation method of bridge working condition based on strain data cannot realize the evaluation of whole bridge bearing capacity. To solve this problem, this paper puts forwards a resistance deterioration assessment method based on strain monitoring data and calculated maximum crack height. Through the engineering project verification, this method has been deemed to be effective.
Research on Integrated Management Platform of Smart Park Based on CIM
Authors: Gao Zhanwang , Luan Wenjie , Lin Wenjie , Zhang Jiamin , Chang Runwu 
Published: May 2021

Abstract
At present, the construction of smart cities and smart parks in China has been widely concerned, and the intelligent decision-making in the process of urban planning, design, construction and management is in urgent need of refined, visualized, dynamic and integrated expression of urban entity information. Therefore, this paper studies a technical theory of digital description and expression of cities, namely CIM (City Information Model). Our team independently innovates, developing smart park management platforms. This platform is based on BIM (Building Information Model), GIS, IOT (Internet of Things) and other new generation information technologies. BIM mainly studies parametric information inside buildings, while GIS focuses on external spatial geographic information. IOT Internet of Things technology realizes the transmission and processing between information and data. This platform integrates and upgrades these technologies to build a smart park platform. This paper explores the presentation and current situation of CIM theory and technology under the background of smart city construction, smart park construction and operation and maintenance management.
Research and application of key technologies for dam safety monitoring based on LoRa
Authors: Xie Changjiang 
Published: May 2021

Abstract
Aiming at the problems of high power consumption, weak scalability and short wireless transmission distance of dam safety monitoring system, the key technology of dam safety monitoring based on Lora is proposed. An intelligent monitoring terminal is designed based on ARM LPC1788 and Lora wireless communication module. The low-power relay mode with Lora and 4G transmission function is adopted, and the active loop calling process and threshold trigger early warning process are designed. The platform software automatically receives data to realize the intelligent collection, analysis and early warning of dam multi factor safety data. The engineering application effect is good.
Research and Application of DC Multi-functional Information Pole
Authors: Wang Yaqian , Fan Zhonghua , Kong Yuhui , Yang Xinke , Yang Zhenhua 
Published: May 2021

Abstract
With the progress of electronic information technology and the development of smart cities, DC power supply and distribution technology and multi-functional information pole construction have received more and more attention. As the underlying perceptive carrier, the multi-function information pole is indispensable in the smart city construction. Combining multi-function information poles with DC technology is an innovative solution to the development trend of smart cities. This solution is designed by considering the requirements of electrical, communication and peripherals, we can further reduce power loss, improve reliability and safety by taking power from DC distribution network directly. The DC multi-functional information pole described above has been successfully connected to the DC distribution network of a compound in Huai’ an, Jiangsu Province. The demonstration application of DC power supply from multi-functional information pole at the terminal distribution network level has been realized.
Application of planning evaluation of historical block based on space syntax —— Case study: Third Streets and Two Alleys historical block, Nanning
Authors: Guo Kexin , Cao Yingxian 
Published: May 2021

Abstract
With the current acceleration of urbanization, the evaluation of spatial planning of historical blocks has become an emphasis in urban research. Reasonable spatial interpretation and planning evaluation deserve consideration. This study takes the historical block of the Three Streets and Two Alleys as an example, which is a key development strategy of Nanning city. With GIS spatial analysis method and improved spatial syntax (sDNA model) to construct the syntax model of the core area of the first phase of the third streets and two alleys. Through the analysis of time scale, integration degree, Choice and understandability, the first-phase planning of the block is evaluated on multiple scales. The result shows three conclusions: (1) As an advanced space syntax method (sDNA model) has significant advantages in large-scale in the evaluation of historical blocks. (2) On the whole, the planning evaluation of third streets and two alleys follows the “formal-traffic-function” principle. The integration degree, Choice and understandability have made a certain progress. (3) The correlation between spatial morphology and spatial function is verified by combining commercial data, it shown the space is a part of developing social and economic life. The research argues that, as an advanced special analysis method, sDNA model has a great application prospect.
Analysis on the Layout of Traditional Residential Courtyards and Building Structures in Guanzhong Area, Shaanxi——Taking Xiaojiapo Village in Lantian County as an example
Authors: Yanjun Li , Mengchen Lian 
Published: May 2021

Abstract
Traditional houses in Guanzhong area are typical regional sustainable green buildings, which contain ecological wisdom and cultural connotations that are in harmony with the environment. This article takes Xiaojiapo Village in Lantian County as the research object. Based on the integration of traditional residential culture inheritance and green development, this paper conducts a more systematic study on settlement site selection, courtyard layout, and building structure. “Road” Shaanxi section of traditional residential building art and folk culture subject research has added results, and also provides an early stage for the protection and inheritance of traditional residential buildings in the Guanzhong area.
Research on the Green Evaluation System of Large Public Buildings
Authors: Chen Hong , Luo Wei , Zhao Fengbing , Fu Dehong , Cheng Shiyun 
Published: May 2021

Abstract
This paper introduces green construction from the entry point of a public building in Chongqing and analyzes its development status in China. The important role of green construction evaluation is a key issue in green construction. Nowadays, China does not yet have a compact evaluation model and system that fits the national conditions, which is scientific, and gives full play to evaluation, standardization, and guidance of green construction. Through the evaluation of three green construction evaluation models of China’s construction engineering green construction evaluation standards, British Building Research Establishment Environmental Assessment Method (BREAM), and Leadership in Energy and Environmental Design (LEED), the separate analysis and comparison of different systems are made. The results could provide supports for green construction evaluation models and systems and also promote the long-term development of green construction in China.