典型文献
Analytical modeling of complex contact behavior between rock mass and lining structure
文献摘要：
Based on the nondestructive test data of operating railway tunnels in China,this paper summarizes the basic characteristics of the complex contact behavior between the rock mass and lining structure.The contact modes are classified into dense contact,local non-contact,and loose contact.Subsequently,the corresponding mechanical model for each contact mode is developed according to its mechanical characteristics using the complex variable method.In the proposed mechanical model,a special algo-rithm is introduced to detect whether the local non-contact zone is re-contacted.Besides,a novel conformal mapping method is also proposed to accurately calculate the mechanical response of the concrete lining.Finally,the accuracy of the proposed method is verified by comparing it with the finite element method(FEM).Several parameter investigations are conducted to analyze the effects of different contact modes on the rock-lining interaction.The results show that:(ⅰ)the height of the local non-contact area does not have a significant effect on the contact stress distribution if no re-contact oc-curs;(ⅱ)backfill grouting can reduce the local stress concentration caused by poor contact modes;and(ⅲ)reducing the friction coefficient of the interface can lead to a more uniform distribution of internal forces in the concrete lining.
文献关键词：
中图分类号：
作者姓名：
Dingli Zhang;Tong Xu;Huangcheng Fang;Qian Fang;Liqiang Cao;Ming Wen
作者机构：
Key Laboratory for Urban Underground Engineering of the Ministry of Education,Beijing Jiaotong University,Beijing,100044,China;College of Civil and Transportation Engineering,Shenzhen University,Shenzhen,518060,China;China Academy of Transportation Sciences,Beijing,100029,China
文献出处：
引用格式：
[1]Dingli Zhang;Tong Xu;Huangcheng Fang;Qian Fang;Liqiang Cao;Ming Wen-.Analytical modeling of complex contact behavior between rock mass and lining structure)[J].岩石力学与岩土工程学报（英文版）,2022(03):813-824
A类：
B类：
Analytical,modeling,complex,behavior,between,rock,mass,lining,structure,Based,nondestructive,test,data,operating,railway,tunnels,China,this,paper,summarizes,basic,characteristics,modes,classified,into,dense,local,loose,Subsequently,corresponding,mechanical,each,developed,according,its,using,variable,method,In,proposed,special,algo,rithm,introduced,detect,whether,zone,contacted,Besides,novel,conformal,mapping,also,accurately,calculate,response,concrete,Finally,accuracy,verified,by,comparing,finite,element,FEM,Several,parameter,investigations,conducted,analyze,effects,different,interaction,results,show,that,height,area,does,not,have,significant,stress,distribution,curs,backfill,grouting,reduce,concentration,caused,poor,reducing,friction,coefficient,interface,lead,more,uniform,internal,forces
AB值：
0.544587
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