等效连续岩体流固耦合流变分析模型  

Rheological model of coupled flow and deformation in equivalent continuum rock mass

作　　者：王芝银[1] 郭书太[2] 李云鹏[1] 

机构地区：[1]中国石油大学(北京)石油天然气工程学院,102249 [2]中国石油天然气管道工程有限公司,065000

出　　处：《岩土力学》2006年第12期2122-2126,共5页Rock and Soil Mechanics

基　　金：国家自然科学基金资助(No.50374049)

摘　　要：位于地下水位线以下的岩体洞室围岩承受应力场与渗流场的耦合作用,而且其变形随时间的持续而发展。本文以岩体水力学和流变力学的基本理论为基础,研究建立了岩体应力场与渗流场耦合作用下的流变分析模型,导出了相应的流变有限元计算格式。所建立的两场耦合有限元流变分析模型,可用于对地下洞室和边坡工程等进行两场耦合流变条件下的长期稳定性分析。The rock caverns located under groundwater level is subjected to the coupling action of stress field with seepage field; and the deformation of surrounding rock varies with time. Based on the fundamental theories of rock mass hydraulics and rheological mechanics, the theological model on coupled stress field and seepage field is set up. The related finite element formulas are derived for rock mass; and the concretely executive process is given for the finite element analysis of coupled stress field and seepage field.for rock mass; and the concretely executive process is given for the finite element analysis of coupled stress field and seepage field. The rheological model established may be applied to the long-term stability analysis for underground caverns and slope engineering under the condition of coupled stress field and seepage field.

关 键 词：应力与渗流耦合 流变分析 有限元模型 

分 类 号：TU452[建筑科学—岩土工程] TQ115[建筑科学—土工工程]