Experimental study on similarity materials for soft rock of deep-buried tunnels  

作　　者：ZHAO Yu PENG Hai-you 

机构地区：[1]School of Civil Engineering, Chongqing University, Chongqing 400045, China [2]Key Laboratory of New Technology for Construction of Cities in Mountain Area（Chongqing University）, Ministry of Education,Chongqing 400045, China

出　　处：《Journal of Coal Science & Engineering(China)》2011年第2期124-127,共4页煤炭学报（英文版）

基　　金：Supported by the New Century Excellent Talent Foundation from MOE of China（NCET-09-0844）; the National Natural Science Foundation of China （50804060, 50921063）

摘　　要：When every parameter is properly scaled down in accordance with some similarity coefficients, it is possible to study the physical-mechanical properties of rock mass with a scale model. To identify the key mechanisms of soft rock in deep buried tunnels, the proper sand, binder and ratio were selected. During the process, the model manufacture technology was introduced and typical tests were done and the results were presented. The physical and meehanieal properties effects caused by each composition were discussed. It is shown that the physical and mechanical properties of chosen ratio material such as uniaxial compressive strength tests, elasticity modulus, tensile strength, internal frictional angle, and Poisson＇s ratio meet with similarity relationship well. The physical and mechanical properties of deep soft rock are simulated successfully.

关 键 词：similarity materials deep-buried tunnel soft rock 

分 类 号：TU234[建筑科学—建筑设计及理论] TD353[矿业工程—矿井建设]