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《Journal of Chongqing Jiaotong University(Natural Science)》 2011-01
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Research on Deformation Parameters of Heterogeneous Rock Mass Materials under Gradient Stress

TU Zhong-ren1,XIA Jin-ping2(1.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China;2.Chongqing Zhonghuan Construction Co.Ltd,Chongqing 401120,China;)  
Focusing on the heterogeneous property of jointed rock-mass and combining with generalization model,equivalent deformation theory as well as equivalence methods,the relationship between deformation parameters of jointed rock-mass and stress gradient is put forward.Study shows that the weak part of rock-mass may lessen the comprehensive deformation parameter under high stress gradient,and that the greater heterogeneous component difference in the jointed rock-mass,the greater variation range appears for its equivalent deformation parameter.The equivalence of equivalent elastic modulus has accounts to 136% maximally,while the minimum is less than 110% for the near homogenously rock-mass.
【Fund】: 重庆市自然科学基金计划项目(CSTC 2009BB6224)
【CateGory Index】: TU452
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