2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)最新文献_第10页

Effect of double track tunnel with small distance on existing tunnel deformation 小间距双线隧道对既有隧道变形的影响

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656286

P. Hu, Y. Teng, Meng Li, Liang Ma

引用次数: 0

Experimental study on damage law of fully graded concrete under tension compression cyclic load 张压循环荷载作用下全级配混凝土损伤规律试验研究

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656320

Chunlei Li, Lijun Zhao, Haibo Wang, J. Tu

{"title":"Experimental study on damage law of fully graded concrete under tension compression cyclic load","authors":"Chunlei Li, Lijun Zhao, Haibo Wang, J. Tu","doi":"10.1109/ICHCESWIDR54323.2021.9656320","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656320","url":null,"abstract":"Considering the reciprocating action of seismic load and the high compressive stress level of high arch dam, the damage law of fully graded concrete under tension compression cyclic load is studied. Based on 15MN large-scale dynamic material testing machine and specially designed linking device, the complete stress-strain curve of full graded concrete under cyclic load is obtained by means of high-precision axial extensometer and VIC-3D. The test data show that even at the medium and low pressure stress level, the full graded concrete will produce a certain amount of residual deformation, and has a good linear relationship with the pressure. Because the difference of ultimate strain between tension and compression of concrete is about 10 times, the compressive residual has great influence on the ultimate tensile strain. Ignoring the residual deformation under high pressure will overestimate the tensile strength of fully graded concrete, which is unsafe. Based on the stress-strain curve of tensile damage of fully graded concrete, it can be seen that the elastic modulus of fully graded concrete cannot be recovered immediately after tension compression conversion, but there is an obvious transition zone. The calculation results of the model ignoring the transition zone are unsafe.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121387990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of one-dimensional rheological consolidation of saturated clay under intermittent cyclic loading with fractional derivative Merchant model 用分数阶导数Merchant模型分析饱和黏土在间歇循环荷载下的一维流变固结

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656374

Yufei Sun, Mingxia Zhang, Yimiao Lu, Jinbao Wang

{"title":"Analysis of one-dimensional rheological consolidation of saturated clay under intermittent cyclic loading with fractional derivative Merchant model","authors":"Yufei Sun, Mingxia Zhang, Yimiao Lu, Jinbao Wang","doi":"10.1109/ICHCESWIDR54323.2021.9656374","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656374","url":null,"abstract":"Soft soil foundation is often subjected to periodic vibration and intermittent action during traffic loading. To investigate the consolidation characteristics of saturated clay under traffic loading, one-dimensional rheological consolidation equation is established based on the fractional derivative Merchant (FDMM) rheological model and intermittent cyclic loading, and the finite difference method is used to solve the equation. Then, the influences of different mechanical parameters on the rheological consolidation of saturated clay are investigated. It shows that during the intermittent period the smaller the fractional order $alpha$ is, the greater the soil rebound is. The loading number N in a single cycle affects the peak of consolidation degree. The smaller N is, the higher the peak consolidation degree is. The intermittent ratio W has a great influence on the consolidation, and the soil rebound is positively correlated with W The research results will be the good reference for understanding the consolidation characteristics of saturated clay under intermittent cyclic loading.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126824081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep learning based methods for water body extraction and flooding evolution analysis based on sentinel-1 images 基于sentinel-1图像的深度学习水体提取与洪水演化分析方法

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656266

Zhixin Zhang, Dan Liu, Zhe Liu, Yanjun Qiao, Changan Zheng, Yong Gan

引用次数: 0

Influence of floor layout on seismic performance of Frame-shear wall structure 楼板布置对框架-剪力墙结构抗震性能的影响

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656355

Yunxuan Chen, Yongsheng Zhang

{"title":"Influence of floor layout on seismic performance of Frame-shear wall structure","authors":"Yunxuan Chen, Yongsheng Zhang","doi":"10.1109/ICHCESWIDR54323.2021.9656355","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656355","url":null,"abstract":"In order to study the influence of floor layout on the seismic performance of high-rise frame shear wall structure, taking the 12 storey reinforced concrete frame shear wall structure as an example, the calculation model is established by using ANSYS finite element software, and the structure under the action of earthquake is calculated and analyzed. The modal characteristics, natural frequency and maximum displacement, inter-story displacement angle and Mises equivalent stress distribution law of the structure under different floor layout schemes are obtained. The results show that the layout of 150mm-thick floor slabs for 1-6 floors and 120mm-thick floor slabs for 712 floors is the most beneficial to the overall lateral stiffness of the structure. The most dangerous section of the structure under the action of an earthquake is located at the bottom of the underlying shear wall. The calculations are carried out in accordance with the current concrete structure design code GBJ50010-2010 and the building seismic design code GB50011-2010.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131466981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Failure mode of displacement field for anchorage body during GFRP bolt drawing GFRP锚杆拉拔过程中锚固体位移场破坏模式

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656454

Qing-Kun Mou, Yue Qin, Weibo Xu, Chao Liu, Shenghui Zhang, Chao Chen

{"title":"Failure mode of displacement field for anchorage body during GFRP bolt drawing","authors":"Qing-Kun Mou, Yue Qin, Weibo Xu, Chao Liu, Shenghui Zhang, Chao Chen","doi":"10.1109/ICHCESWIDR54323.2021.9656454","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656454","url":null,"abstract":"Rock and soil bolt anchoring technology is a construction technology widely used in the field of geotechnical engineering, especially in the process of foundation pit support, the technology is used more. However, there are few studies on the failure modes of the anchorage body in the drawing process of GFRP soil nailing. Based on the model box test of soil nail drawing, this paper studies the displacement field of anchorage body in the process of soil nail drawing and analyzes the displacement field along the length of anchorage body and the vertical of anchorage body, respectively. The results show that before reaching the critical state, the deformation of the soil around the anchor decreases along the drawing point to the bottom of the anchor under the same load. However, when the anchor reaches the ultimate load, the pull-out failure curve of the anchor bolt does not change from an increasing trend to a stable horizontal trend, showing a curve form of low at both ends and high in the middle.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123022257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Key design points and simulation analysis of pedestrian twice crossing based on detailed design concept 基于详细设计理念的行人二次过街设计要点及仿真分析

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656487

Xue-mei Wang, Yuan Liu, Tian-Yu Hou, Zhaohui Wu, Yu Han, Jian-Hao Lin

{"title":"Key design points and simulation analysis of pedestrian twice crossing based on detailed design concept","authors":"Xue-mei Wang, Yuan Liu, Tian-Yu Hou, Zhaohui Wu, Yu Han, Jian-Hao Lin","doi":"10.1109/ICHCESWIDR54323.2021.9656487","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656487","url":null,"abstract":"In view of the low efficiency of pedestrian crossing and the obvious conflict with turning vehicles at large signal control intersections, this paper carries out an in-depth investigation on pedestrian crossing behavior habits and analyzes the problems existing in pedestrian crossing. Based on the detailed design concept, this paper summarizes and refines the main design points of pedestrian twice crossing, discusses focusing on the combination of pedestrian phase and motor vehicle phase, and the right-turn vehicle “starting late”; Finally, taking the typical four-phase cross intersection as an example, using VISSIM software, the simulation analysis of the two situation of the current and optimization intersection is carried out. The results show that the pedestrian delay is obviously reduced without a significant increase in vehicle delay. This paper also verifies the rationality and feasibility of the pedestrian twice crossing improvement scheme based on the detailed design concept.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123867959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Analysis on Comprehensive Support Technology for Foundation Pit of Dahegang Pumping Station Project 大河岗泵站工程基坑综合支护技术分析

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656482

Chunlei Xu, Zhaojie Huang, Weinan Xu

引用次数: 0

Research on Surface Deformation Control of Tunnel Construction Under-passing Petroleum Pipeline 石油管道下穿隧道施工地表变形控制研究

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656351

Guowei Zhang, Dewu Li

{"title":"Research on Surface Deformation Control of Tunnel Construction Under-passing Petroleum Pipeline","authors":"Guowei Zhang, Dewu Li","doi":"10.1109/ICHCESWIDR54323.2021.9656351","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656351","url":null,"abstract":"The intersection of new tunnels and existing structures is a common problem during tunnel construction. Therefore, how to ensure the structural safety of existing structures during the excavation of new tunnels is a difficulty in construction. This paper takes the Kelewan loess tunnel of the Mianxi Expressway as the research background, and uses numerical simulation methods to study the surface deformation control of the shallow-buried loess tunnel underneath the oil pipeline; Comparative analysis shows that the reasonable length of the leading small conduit is 4.5m; in order to reduce the impact of tunnel construction on the existing oil pipeline, vertical grouting pre-reinforcement is carried out on the ground around the oil pipeline. When different grouting widths and depths are used, The maximum settlement value of the petroleum pipeline is compared and analyzed. It is recommended that the grouting width is 3.05m and the grouting depth is 4.5m. In order to obtain the optimal construction parameters, it will provide a reference for similar projects in the future.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128437435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unused Material Stripping and Capacity Recheck of Shijiagou Stockyard of Jinchuan Hydropower Station based on Geological Three-dimensional Model 基于地质三维模型的金川水电站石家沟堆场废料剥离及容量复核

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI: 10.1109/ICHCESWIDR54323.2021.9656474

H. Luo, Wenge Wang, Zhenxin Wei

{"title":"Unused Material Stripping and Capacity Recheck of Shijiagou Stockyard of Jinchuan Hydropower Station based on Geological Three-dimensional Model","authors":"H. Luo, Wenge Wang, Zhenxin Wei","doi":"10.1109/ICHCESWIDR54323.2021.9656474","DOIUrl":"https://doi.org/10.1109/ICHCESWIDR54323.2021.9656474","url":null,"abstract":"The Shijiagou stockyard is the source of concrete aggregates and rockfill materials for the Jinchuan Hydropower Station. It is extremely important to ensure sufficient stocks in the stockyard. The article uses the self-developed ItasCAD, a geological 3D design platform based on the DSI underlying modeling engine and the “graphics + data” architecture of the Northwestern Institute. Use the 3D digital method to check the capacity of the stockyard, and carry out the geological 3D modeling work based on the preliminary survey data of the Jinchuan Hydropower Station. Establishing stockyard capacity envelope for each excavation elevation model in design slope ratio, in order to achieve the release unwanted material reserves and inquiries. This method can also be used to quickly update the geological model of the stockyard according to the actual geological conditions along with the excavation of the site, combined with the dynamic mining of the stockyard, quickly complete the capacity review work of the stockyard, and realize the dynamic calculation of the stockyard capacity. The results of this research have reference significance and application value for the same type of projects.","PeriodicalId":425834,"journal":{"name":"2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116395635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0