bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of bedding of different dip angles on the strength of argillaceous dolomite
Authors: Shilong Mei , Junying Rao , Caijin Xie 
Published: November 2019

Abstract
In order to study the influence of different dip angles on the strength characteristics of layered argillaceous dolomite, the compressive strength and elastic modulus of argillaceous dolomite are obtained by uniaxial compression test. The research shows that the compressive strength and elastic modulus of argillaceous dolomite have a certain degree of dispersion; the argillaceous dolomite has strong elastic brittleness; the compressive strength of the specimen increases with the bedding angle. Generally, the trend of decreasing first and then increasing is observed. When the bedding angle is 90°, the compressive strength of the argillaceous dolomite specimen is the largest. When the bedding Angle is 30°, the argillaceous dolomite specimen has the smallest compressive strength.
Design and construction of precast reinforced concrete drain pipe in water conservancy project
Authors: xiaoling Tang , bin Li 
Published: November 2019

Abstract
At the bottom of slag dump site in water Conservancy projects, large diameter reinforced concrete drainage pipes are often used for drainage. Due to the large depth of burial, if the prefabricated reinforced concrete drainage pipe is damaged during construction or use, it will have a great negative impact on the safety of the project and it will be very difficult to repair. There is no relevant basis in the water Conservancy code and there are safety risks. Taking actual engineering as an example, the calculation results according to the design specifications and finite element analysis are compared and analyzed. the limitations of designing according to the water supply and drainage codes are explained. Some engineering solutions for the reinforcement design of prefabricated reinforced concrete drainage pipes with large buried depth are given out. These results can provide reference for hydraulic engineering designers.
Research on Error Correction Method of Mine Ventilation Resistance
Authors: Wei Yinshang , Li Jiangpeng 
Published: November 2019

Abstract
Aiming at the problems of measurement data deviation during the measurement of coal mine ventilation resistance, the principle of the base point measurement of barometer and the reason of the deviation of measurement data are analyzed. The correlation degree of the data sequence trajectory affecting the influence of the measurement data is compared. The main reasons for the deviation of the measurement data are the changes in the elevation of the measurement point, the sensitivity of the measuring instrument and the complex changes of the atmospheric pressure. Based on this, a correction method based on negative feedback adjustment is proposed. This method uses the difference between the static pressure value of the fan and the static pressure of the fan as a feedback factor by checking whether the accuracy of the calculated ventilation resistance value meets the requirements, then use the least squares method to obtain a new value to replace the original atmospheric pressure value and then solve it, so as to obtain the required ventilation resistance value. A mine ventilation simulation was performed based on the calculated resistance values to verify the availability of the corrected ventilation resistance. The method is currently applied to the Xiaojihan coal mine resistance measurement project. The results show that the method has high practicability in engineering practice, and can quickly and accurately correct the mine ventilation resistance measurement results, which simplifies the operation process and saves time.
Rutting prediction and regularity analysis of typical structures in Shandong Province
Authors: Zhang Wenwu , Wang Jian , Zhuang Wei , Chen Hao , Chen Sai , Bi Yufeng 
Published: November 2019

Abstract
In order to further research the development law of rutting damage in Shandong Province, Shandong is divided into four regions basedon different regional characteristics, and 2∼4 typical structures are selected in each region to fit the rutting damage prediction model. The relevant parameters (traffic flow, thickness of asphalt layer, regional characteristics) of the rutting damage were selected, and the influence on the rutting depth of each parameter was analyzed. It is suggested that the pavement structure should be differentiated designed based on the different working conditions to balance the relationship between the development of rutting damage and the initial construction investment.
Research on Owner’s Engineering Materials Purchasing Strategy under the “VAT” taxation method
Authors: Deng Xuan , Li Shiyu , Liu Wanlin 
Published: November 2019

Abstract
Under the current policy of switching to VAT taxation in China, there is an issue we need to consider with, that is how to use the reasonable strategy to reduce the procurement of materials in the engineering project cost. We base on the method of constructing mathematical models and actual case analysis, to analyse when suppliers provide VAT invoices with different tax rates, the owner should ask them how to discount the price of the corresponding material for the overpaid tax. The analysis results show that when the owner chooses the supplier, he should give priority to the one who can provide the special VAT invoices; when the supplier can only provide 3% of the invoice, he should require a discount of the material more than 15.45%; if the VAT invoice cannot be provided, the supplier should be required to provide a discount of 12.92% or even more.
Effect of the Voiding Pavement Structure for the Responding Electromagnetic Wave
Authors: Nan Chen 
Published: November 2019

Abstract
Voids are typical defects of pavement structure which probably causes further damages. In order to research the effect of the voiding pavement structure for the responding electromagnetic wave, a test of detecting voids using GPR was conducted to reveal the effect of frequency of principal antennas and the size of voids for responding waves. The frequency, voiding heights and voiding area affect the reflecting waves in different ways. Compared with 400MHz and 2000MHz, we can get the best apparent reflecting waves with a 1000MHz antenna. The resolution depends on the voiding area in that the reflecting wave patterns would become too fuzzy to identify when the height is less that 1cm. When the voiding area is increasing, the seismic event of diffracted waves is becoming more and more twisted. But the relationship of both arear of twisted event and the voiding area can not be determined with the patterns.
Analysis on mechanical properties of I-girder with 2000 corrugated steel webs
Authors: Li Shuqin , Li Yuelu , Yang Zhengyu , Chen Jia 
Published: November 2019

Abstract
In order to meet the needs of the construction of larger span bridges in engineering, the large-sized corrugated steel web with 2000 corrugated steel webs were studied. The numerical model of I-girder with 2000 corrugated steel webs is established by finite element software. The effects of bending angle, web thickness and web height on deflection and shear buckling on the basis of this are studied. The research conclusions can provide reference for the design calculation and engineering use of I-girder with corrugated steel webs in the future.
Construction project risk evaluation based on FMEA
Authors: Wang Ru , Feng Youliang , Yang Hongmei 
Published: November 2019

Abstract
FMEA (Failure Mode & Effects Analysis) is a preventive risk analysis technique, which purpose is to make the prevention in advance, rather than correct afterwards. Its core is to evaluate the failure mode from three dimensions: S (Severity), O (Occurrence) and D (Detection). The risk is reduced to an acceptable level by quantifying the failure mode of the risk and the cause of the key failure, and developing preventive measures to control it. Fuzzy comprehensive evaluation is a combination of qualitative and quantitative analysis, which combines the advantages of qualitative and quantitative. Combining FMEA with the Fuzzy comprehensive evaluation method, using the advantages of FMEA’s pre-existing control and full-process participation, it can make up for the shortcomings of the EX-post control higher than Ex-ante control in the current risk management, and make the risk evaluation method more perfect. It is necessary and meaningful to reduce the losses caused by the risk of projects by making effective and reasonable analysis and control of the risks that may occur in the construction project.
Application of Bored Pile Anchor Cable Technology in Foundation Pit Construction
Authors: Feng Zhengwei , Guo Peicheng 
Published: November 2019

Abstract
With rapid development of the city, demands for civil air defense, underground commercial and underground parking in human society have increased. Development of the construction space towards the underground is enhanced, and foundation pit excavation is widely used. Bore pile + anchor cable supporting model has been used more and more in deep foundation pit supporting. Based on engineering examples, this essay expounds the construction scheme of deep foundation pit support for a residential area project, introduces the construction technology of bore pile, crown beam and waist beam, and analyzes in detail the construction technology of the installation, grouting and tension anchoring of anchor cable in prestressed anchor cable construction. The quality control points in the construction are discussed and summarized in depth, which could provide powerful reference for the implementation of civil engineering construction tasks and ensure smooth progress of the project to achieve the expected results.
Research on sharing and integration of public open space in Shenzhen Bay Street, Nanshan district, Shenzhen
Authors: Shi Ying , Ren Daoyi 
Published: November 2019

Abstract
Due to the shortage of land space resources and the uneven distribution of urban space resources under the current development model, the existing urban public open space is distributed discretely in urban space, lacking systematic integration and full-cycle guidance and control and management which highlights lacking publicity. The existing urban public space can not meet the needs of public life of citizens, while the building public open space attached to the building plots that has not been utilized effectively possesses great potential for development and utilization. In recent years, the Shenzhen Bay Street complex in the Nanshan District of Shenzhen has become one of the few practical cases of the joint development design and integrated construction of urban public open space and building public open space in China. The systematic study from it can provide valuable reference for the integrated development and guidance and control of public open space in Chinese cities.
Research on Highway Landscape Design Based on Regional Culture
Authors: Li Yuanfei , Chen Fang , Jiang Dingran 
Published: November 2019

Abstract
In order to enhance the cultural beauty of highway landscape, the design method of highway landscape based on regional culture was studied. Firstly, the types of regional cultural elements in highway landscape are analyzed, and the carrier of regional culture and its adaptability are studied. Secondly, the principles and methods of regional culture presentation are discussed. Then, aiming at the tunnel and service area with the highest adaptability of the carrier, the highway landscape design points are analyzed. Finally, the application of regional culture in highway landscape design is studied in combination with Guangna expressway. The results show that landscape design based on regional culture is of positive significance to enhance the connotation of landscape culture and inherit the culture along the line.
Discussion on Zhejiang Provincial Water Conservancy Local Standard System in the New Period
Authors: Wang Lirong , Teng Hui , Wang Kai 
Published: November 2019

Abstract
At present, there is no relatively perfect provincial water conservancy local standard system in China, and no water conservancy local standard system has been established in Zhejiang Province. In order to improve the technical support of water conservancy local standards, we will play a guiding and restrictive role in water conservancy standardization. This paper expounds the current status of water conservancy local standards in Zhejiang Province, summarizes and refines the long-term practice and innovation achievements of Zhejiang Water Conservancy in various fields, and constructs the framework of Zhejiang water conservancy local standard system. According to the six professional categories, the construction content is analyzed systematically, which provides a reference for the related research on the construction of local standard system in Zhejiang Province.
Research and Application on Design of Underground Container Logistics System Based on Autonomous Container Truck
Authors: You Kesi , Yu Mingjian , Yu Qifeng 
Published: November 2019

Abstract
In this paper, a kind of underground passage automated freight transport system based on the autonomous dual-mode container truck is proposed, and the overall structure of the automated freight transport system, the allocation of the transportation equipment, the comprehensive design of underground passage, the comprehensive analysis of transportation organization, the reasonable layout of the freight transport terminal, and the design of connection with the overall operation of the port are studied. Taking the connection passage between the central operation area and the eastern operation area of Yantian Port under planning and construction as an example, this paper expounds the application of the underground automatic freight transport system design method in the underground container logistics system within the port area. Based on the current situation and the long-term planning requirements of Yantian Port, the overall route of the connection passage between the central operation area and the eastern operation area is studied; the dual mode transportation organization model based on the combination of autonomous driving and manned driving is designed, and the manned driving mode shall be adopted within the operation area. In the connecting tunnel, there is the interference-free, fully-enclosed, line-fixed, and no man’s land application scenario, and the autonomous driving mode shall be adopted. The corresponding ground switching area is proposed to match the dual-mode transportation system of the autonomous dual-mode truck; such switching area is composed of the mode switching area, truck storage area, and driver rest and management room. Compared with the traditional tunnels, the autonomous freight transport passage has obvious advantages in saving project cost and improving transport efficiency.
Response prediction method for tension piles considering progressive soil deformation
Authors: Liu Nianwu , Liang Yaoying , Yu Jitao , Shao Peng , Zhang Qianqing 
Published: November 2019

Abstract
This paper presents a analytical approach for the analysis of the response of a single pile and pile group subjected to tension load by the load-transfer approach. The shaft displacement of a tension pile is assumed to comprise the relative displacement of disturbed soil around a pile and the elastic vertical soil displacement. Considering the interactive effects among piles, a new load transfer function of the individual pile in a pile group is proposed. In addition, an effective calculate method is developed for analyzing the response of a single pile and a pile group subjected to tension load. Comparative analyses are then performed to demonstrate the veracity of the proposed method. The comparative analysis results show that the proposed approach is reliable for the analysis of the response of single piles as well as pile groups subjected to tension load.
Parameters sensitivity analysis of prefabricated prestressed concrete pavement slab
Authors: Du Chuang , Li Yanzhao , Zhang Chunxiao 
Published: November 2019

Abstract
The prefabricated prestressed concrete pavement with assembly construction and prestressing technology has the advantages of rapid construction and reliable quality. In this paper, a three-dimensional finite element model of the pavement structure was established by numerical simulation method. The parameters including the slab dimension, the thickness of the slab, the prestress value and position of the prestress tendon were sensitively analyzed. The results showed that the slab dimension has a critical value of 1m×1m.While the slab is larger than the critical value, the stress of the slab is almost unchanged. The thickness of the slab also has a critical value of 0.12m. When the slab is less than the critical value, the forced mode of the slab will be changed. With the increase of prestress, the stress concentration at the end of the slab will occur, but the maximum stress did not exceeded the strength of the material. It is suggested that the prestress value should be 4-5MPa. The lower the position of the prestress tendon in the slab is, the more obvious the anti-arch effect is, and it is safe to set the prestress tendon in the middle of the slab.
Non-linear Finite Element Analysis of Shear Capacity for Multiple Ecological Composite Wall
Authors: Hou Lina , Huang Wei 
Published: November 2019

Abstract
Multiple ecological composite wall is one of the most commonly used lateral resistance components in the ecological composite wall structure. In order to make a study of the shear capacity of the multiple ecological composite wall, based on previous research results, the finite element model of the multiple ecological composite wall is established to analyze the main influencing factors of the shear bearing capacity of the wall. The results of finite element analysis show that the main factors affecting the shear capacity are shear span ratio, ribbed bar, height of strength section, reinforcement area of end columns and concrete strength of end columns.
Based on Finite Element Method Research on Treatment Measures of Crossing Gas Pipeline
Authors: Dongyuan Wang , Zifeng Zhao , Qiuxia Tan , Chunfeng Li 
Published: November 2019

Abstract
The finite element method is used to analyze the stress and deformation of the crossing gas pipeline. The evaluation results show that the current pipeline stress and displacement cannot meet the allowable values specified in the specification. In order to ensure the safety of pipeline operation, it is necessary to treat the crossing gas pipeline. By investigating the pipeline construction period and operation period data, the deformation data collection and analysis of the pipeline has been carried out. It is speculated that the direct cause of the pipeline deformation is the temperature difference and the internal pressure and gravity. The indirect cause is that no appropriate compensation structure or sufficient restraint measures have been taken across the two ends. Cracking of the protective wall across the ends is a secondary failure of displacement. The finite element method is used to check the proposed governance measures, and finally determine more reasonable control measures. After the implementation of the treatment measures on the site, the better results were achieved. The pipeline stress and deformation were all within the requirements of the specification. The pipeline was in a safe state and the treatment measures were feasible and practical. The engineering application results show that the feasibility of checking the cross-section pipeline control measures by the finite element method has certain effectiveness and economic rationality, and can achieve the purpose of engineering governance.
Study on operation scheme of absorption heat pump of cogeneration units in non-heating season
Authors: Xue Qingyuan , Su Peng , Zhang Tianyang , Zhang Yanhui , Hu Yufei 
Published: November 2019

Abstract
This article research into cogeneration power plants’ absorption heat pump operation scheme in the non-heating season. Two technical routes for supplying domestic hot water and heating condensate water have been proposed. By analysis and calculation, concluded as follow: Schemes for supplying domestic hot water has good economic benefits; For Scheme to heat condensate water, energy-saving condition depends on the heat source of heat pumps. Using turbine extraction steam as heat source is inefficient, while use other heat sources can reduce the turbine heat rate by approximately 60kJ/kWh.
Research on mechanical behavior of circular concrete-filled steel tube arch joints with built-in opening stiffener
Authors: Gong Sai , Cheng Gao 
Published: November 2019

Abstract
For the concrete-filled steel tubular tension nodes, the opening stiffener can effectively reduce the stress concentration of the joints and increase the ultimate bearing capacity and tensile stiffness of the joints. For the concrete-filled steel tubular arch ribs, the steel arches are subjected to both horizontal and normal forces. Open type stiffener has an important influence on the mechanical performance of the arch rib joint, and the mechanism of the joint force transmission is more complicated. Taking a bearing circular concrete-filled steel tube arch bridge as an example, a nonlinear finite element model is established by selecting arch rib joints to analyze the influence of the setting of Open type stiffeners on the mechanical properties of CFST arch joints. The results show that after the Open type stiffener is set, the failure mode of the joint is represented by the buckling deformation of the arched steel tube and the obvious deformation of the arch rib steel pipe. The Open type stiffener avoids the void of the joint steel pipe and concrete, ensuring the steel pipe and concrete at the arch rib joint. The built-in opening stiffener is an effective form of improvement for concrete-filled steel tubular arch rib joints.
Study of the height of water flowing fracture zone based on strain energy failure criterion
Authors: Qi Donghe , Ru Xinhua , Li Dayong , Chu Fuyao , Zhang Jingkai 
Published: November 2019

Abstract
In order to determine the development height of the overburden water flowing fracturing zone in the upper 15 coal seam of the zhubai Coal Mine, the 15101 working face is taken as an example. The FLAC3D numerical simulation software is used to establish the stope model, and the strain energy failure criterion is used as the extension criterion of overburden water flowing fracturing zone. The development range of the fracture zone is determined by the strain energy failure criterion, and the numerical simulation of the overlying strata movement law of the coal seam roof caused by mine exploitation is carried out. A numerical simulation method based on the strain energy failure criterion for determining the plastic zone is proposed. By analyzing the damage range, the height of the overburden water flowing fracturing zone is determined. The results of theoretical and field observation are used to validate the simulation result. The height of the overburden water flowing fractured zone according to the numerical simulation result is 22.8 m. The theoretical calculations are from 14.4 m to 27.3 m and the field observation is 21.44 m. The result obtained by the strain energy failure criterion is closer to the field observations. The accuracy of the development height of the overburden water flowing fracturing zone obtained by the strain energy failure criterion is validated. This stope model may have a scientific guidance for Mining Engineer.