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Research on Reliability of Tunnel Primary Support in Water-Rich Stratum

CAO Xue-qiang(Transportation Planning Survey and Design Institute of Shanxi,Taiyuan 030012,China)  
By relying on the No.1 inclined shaft tunnel of Kangjialou Tunnel under the conditions of water-rich strata,a load-structure model for numerical simulation is used to determine the most unfavo rable positions of primary support.With the main factors of primary support which contain water pressure and the thickness of primary support as the random variable,they are fitted to determine the limit equation of supporting security and the reliability of the most unfavorable positions are calculated by Monte-Carlo method based on the principle of optimality.Studies show that support axial force and bending moment are linear with pressure and are non-linear with the thickness of primary support.Foot of a wall of security is the lowest,followed by vault and wall,whose reliability index is less than specifications,so that secondary lining should be built as soon as possible to prevent landslides;because the foot of a wall is the most dangerous,it must strengthen design parameters to reduce its probability of failure.
【CateGory Index】: U455.7
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Chinese Journal Full-text Database 3 Hits
1 SONG Yu-xiang1 ,2,JING Shi-ting 2,ZHU Yong-quan 2 (1.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China; 2.School of Civil Engineering,Shijiazhuang Railway Institute,Shijiazhuang 050043,China);Research on reliability of tunnel structural system[J];岩土力学;2008-03
2 XU Mingxin,YANG Chengyong,ZHANG Qiang(School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing 100044,China);Assessment on the Safety of Shotcrete Lining During Tunnel Construction[J];北京交通大学学报;2008-01
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Chinese Journal Full-text Database 10 Hits
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3 WEN Jingzhou1a,1b,ZHANG Yongxing1a,1b,WANG Cheng2(1a.College of Civil Engineering;1b.Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education,Chongqing University,Chongqing 400045,P.R.China; 2.Department of Tunnel and Geotechnical Engineering,Chongqing Jiaotong University,Chongqing 400074,P.R.China);Analysis on Interfacial Stress Between Surrounding Rock and Shotcrete Lining[J];土木建筑与环境工程;2012-06
4 MA Yun-feng1,TANG Qian-song1,ZHOU Yong1,CHEN Yun2(1.Hunan Expressway Administrative Office,Changsha 410001,Hunan,China;2.School of Traffic and Transportation Engineering,Changsha University of Science & Technology,Changsha 410004,Hunan,China);Reliability Analysis of Multi-arch Tunnel Lining Structure Based on Stochastic Finite Element Theory[J];矿冶工程;2012-06
5 CAO Xue-qiang(Transportation Planning Survey and Design Institute of Shanxi,Taiyuan 030012,China);Research on Reliability of Tunnel Primary Support in Water-Rich Stratum[J];公路;2012-10
6 Zhang Jiangang1, 2 Liu Jiaping1, 2 (1 State Key Laboratory of High Performance Civil Engineering Materials, Nanjing 210008; 2 Jiangsu Research Institute of Building Science, Nanjing 210008);A Study of the Effects of Liquid Setting Accelerator on Sprayed Concrete Durability[J];现代隧道技术;2012-05
7 ZOU Chang-fu1,YE Yi-cheng1, WANG Wen-jie1,WANG Shui-ping2, JING Hai-chun2(1.College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Hubei key laboratory for efficient utilization and agglomeration of agglomeration of metallurgic mineral resources, Wuhan Hubei 430081,China; 2.Jinshandian mine,Wuhan Iron & Steel Group Minerals(Co.,Ltd.), Huangshi Hubei 435116,China);Reliability analysis and application of GFRP bolt[J];化工矿物与加工;2012-10
8 SHEN Jin-sheng(School of Mineral and Safety Engineering,Hunan University of Science and Technology;Xiangtan Hunan;411201;China);The Reliability Analysis on the Floor of Incompact and Fractured Soft-rock Roadway[J];科技视界;2012-28
9 ZHOU Shu-jing1,YANG Bei-bei1,CHENG Fang-meng1,ZHENG Jian-ming2(1.College of Civil Engineering,Hebei University of Engineering,Hebei Handan 056038,China; 2.Qianying Mine Branch,Kailuan Group,Hebei Tangshan 063301,China);Calculation of structural reliability based on the improved genetic algorithm[J];河北工程大学学报(自然科学版);2012-01
10 Yang Jianguo1 Xie Yongli1 Li Junsheng2 Wang Yunzhou3 Zhang Xiao4 (1 Highway School, Chang'an University, Xi'an 710064; 2 Gansu Provincial Communications Bureau, Lanzhou 730000; 3 Gansu Vocational and Technical Institute of Communication, Lanzhou 730070; 4 Gansu Province Road and Bridge Construction Group Co., Ltd., Lanzhou 730000);Progress in Research on Tunnel Structural Reliability[J];现代隧道技术;2009-06
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