摘要
矿山巷道围岩具有典型的拉压不同模量属性,在目前巷道围岩应力分析中,往往因忽略该性质而导致误差,甚至给工程带来安全隐患。针对这一问题,编写了不同模量有限元程序,给出巷道围岩二次应力场和位移场随着不同模量系数α的变化规律,并与经典弹性理论的计算结果相比较,得出了不同模量系数α的影响范围,为巷道支护设计提供了新的理论依据。
The different tensile-compressive modulus is typical characteristic of roadway tunnel rock, however, this characteristic are ignored in the stress analysis of roadway tunnel rock at present, which may induce deviation and bring safety incipient fault to engineering. For this problem, finite element program was coded based on different tensile-compressive modulus theory, and which are used to give the change rule of secondary stress field and displacement field of roadway tunnel rock with different modulus factor a. This result is compared with the result which is induce by classical elastic theory, and the incidence of different modulus factor a is presented, which offer new theoretical base for roadway tunnel support design.
出处
《山东科技大学学报（自然科学版）》
CAS
2008年第1期1-4,共4页
Journal of Shandong University of Science and Technology(Natural Science)
关键词
巷道
拉压不同模量
非线性
应力
变形
roadway tunnel
different tensile-compressive modulus
nonlinear
stress
deformation
作者简介
杨钊（1984-），男，湖北洪湖人，博士研究生，主要从事岩土工程研究．
