摘要
本项研究工作在施工期安全监测工作的基础上,采用二维粘弹性非线性有限元反分析方法和程序,应用开尔文体、广义开尔文体两种粘弹性流变模型,对顶山隧洞岩体粘弹性本构关系的弹性模量E0,E1,粘性系数η等物理力学参数进行了系统的反分析计算;并对“台阶式”错动开挖、支护对围岩参数反分析成果的影响等技术问题进行了分析探讨。
On the base of safety monitoring in construction period, the paper calculates through back analysis the elastic modulus E0,E1, the cohesive factor ηwith two viscoelasticity rheologic models of Kelvin body and broad sense Kelvin body, discusses the influence of benching and support to back analysis result of adjoining rock parameter.
出处
《东北水利水电》
2006年第2期1-4,共4页
Water Resources & Hydropower of Northeast China
关键词
粘弹性
反分析
软岩隧洞
viscoelosticity
back analysis
soft rock tunnel
