典型文献
Face stability analysis of circular tunnels in layered rock masses using the upper bound theorem
文献摘要：
An analysis of tunnel face stability generally assumes a single homogeneous rock mass.However,most rock tunnel projects are excavated in stratified rock masses.This paper presents a two-dimensional(2D)analytical model for estimating the face stability of a rock tunnel in the presence of rock mass stratifi-cation.The model uses the kinematical limit analysis approach combined with the block calculation technique.A virtual support force is applied to the tunnel face,and then solved using an optimization method based on the upper limit theorem of limit analysis and the nonlinear Hoek-Brown yield cri-terion.Several design charts are provided to analyze the effects of rock layer thickness on tunnel face stability,tunnel diameter,the arrangement sequence of weak and strong rock layers,and the variation in rock layer parameters at different positions.The results indicate that the thickness of the rock layer,tunnel diameter,and arrangement sequence of weak and strong rock layers significantly affect the tunnel face stability.Variations in the parameters of the lower layer of the tunnel face have a greater effect on tunnel stability than those of the upper layer.
文献关键词：
中图分类号：
作者姓名：
Jianhong Man;Mingliang Zhou;Dongming Zhang;Hongwei Huang;Jiayao Chen
作者机构：
Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,Department of Geotechnical Engineering,Tongji University,Shanghai,200092,China
文献出处：
引用格式：
[1]Jianhong Man;Mingliang Zhou;Dongming Zhang;Hongwei Huang;Jiayao Chen-.Face stability analysis of circular tunnels in layered rock masses using the upper bound theorem)[J].岩石力学与岩土工程学报（英文版）,2022(06):1836-1848
A类：
stratifi,kinematical
B类：
Face,stability,analysis,circular,tunnels,layered,rock,masses,using,upper,bound,theorem,An,face,generally,assumes,single,homogeneous,However,most,projects,are,excavated,stratified,This,paper,presents,two,dimensional,2D,analytical,model,estimating,presence,cation,uses,limit,approach,combined,block,calculation,technique,virtual,support,force,applied,then,solved,optimization,method,nonlinear,Hoek,Brown,yield,cri,terion,Several,design,charts,provided,analyze,effects,thickness,diameter,arrangement,sequence,weak,strong,layers,variation,parameters,different,positions,results,indicate,that,significantly,affect,Variations,lower,have,greater,than,those
AB值：
0.488452
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