Kinematical analysis of highway tunnel collapse using nonlinear failure criterion

作     者：杨小礼 杨子汉 潘秋景 李育林 YANG Xiao-li;YANG Zi-han;PAN Qiu-jing;LI Yu-lin

作者机构：School of Civil EngineeringCentral South University 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2014年第21卷第1期

页      面：381-386页

核心收录：

学科分类：08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：Project(2013CB036004)supported by the National Basic Research Program of China Project(51378510)supported by the National Natural Science Foundation of China 

主　　题：upper bound theorem tunnel collapse highway tunnel nonlinear failure criterion 

摘      要：For different kinds of rocks,the collapse range of tunnel was studied in the previously published ***,some tunnels were buried in soils,and test data showed that the strength envelopes of the soils followed power-law failure *** this work,deep buried highway tunnel with large section was taken as objective,and the basic expressions of collapse shape and region were deduced for the highway tunnels in soils,based on kinematical approach and power-law failure *** order to see the effectiveness of the proposed expressions,the solutions presented in this work agree well with previous results if the nonlinear failure criterion is reduced to a linear Mohr-Coulomb failure *** present results are compared with practical projects and tunnel design *** numerical results show that the height and width of tunnel collapse are greatly affected by the nonlinear criterion for the tunnel in soil.