中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2011, Vol. 30 ›› Issue (1): 69-73.

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应力梯度作用下非均质岩体材料变形参数的研究

涂忠仁1,夏金平2   

  1. 1.重庆交通大学 土木建筑学院,重庆 400074; 2.重庆中环建设有限公司,重庆 401120
  • 收稿日期:2010-09-19 修回日期:2010-11-11 出版日期:2011-02-15 发布日期:2015-01-22
  • 作者简介:涂忠仁( 1973—) ,男,江西抚州人,副教授,博士,主要从事岩石力学试验研究方面的工作。E-mail: tuzrtj@126.com。
  • 基金资助:
    重庆市自然科学基金计划项目( CSTC,2009BB6224)

Research on Deformation Parameters of Heterogeneous Rock Mass Materials under Gradient Stress

TU Zhong-ren1,XIA Jin-ping2   

  1. 1. School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China; 2. Chongqing Zhonghuan Construction Co. Ltd,Chongqing 401120,China;
  • Received:2010-09-19 Revised:2010-11-11 Online:2011-02-15 Published:2015-01-22

摘要: 针对节理岩体非均质性特征,利用概化模型、变形等效及当量化处理等方法,研究了梯度应力作用下节理岩 体的变形参数变化规律。研究表明: 构成岩体的成分不均匀性越显著时,等效弹性模量变化越大,计算得到的最大 等效弹性模量当量变化达136%; 而当岩体均匀性较好时,等效弹模当量变化小于110%。

关键词: 应力梯度, 非均质材料, 变形参数, 概化模型, 等效变形, 当量化

Abstract: 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 rockmass 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 rockmass, 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.

Key words: stress gradient, heterogeneous materials, deformation parameters, generalization model, equivalent deformation; equivalence

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