A RHEOLOGICAL DAMAGE MODEL FOR COUPLED THERMO-HYDRO-MECHANICAL ANALYSIS FOR ROCK MASS

摘要：

Based on the fundamental principles of coupling theory, rheology and damage mechanics of rock mass in this paper, the rheological damage model for fully coupled thermo-hydro-mechanical analysis of rock mass is set up, and the corresponding damage constitutive equation, the conservation equation of mass and the conservation equation of energy are given, and the finite element formulas are derived for coupling analysis of rock mass. During establishing the governing equations, rock mass is assumed approximately as macro-equivalent continuum medium with random distributing pores and cracks. Finally, the applications of obtained rheological damage model for fully coupled thermo-hydro-mechanical analysis to underground liquefied natural gas (LNG) storage caverns and the long-term stability of underground cavern engineering are discussed.

作者: Zhiyin Wang Bing Han Yunpeng Li Shutai Guo

作者单位: China University of Petroleum, School of Petroleum Engineering, Beijing 102249,P.R.China China Petroleum Pipeline Engineering Corporation, Langfang 065000,P.R.China

会议类型: 国际会议

会议名称: 第二届国际应力-水流-热-化学耦合学术大会(2nd International Conference on Coupled Thermo-Hydro-Mechanical Processes in Geosystems and Engineering：Geoproc2006)

会议地点: 南京

会议语种:英文

页码: 658-663

在线出版日期: 2006-05-22（万方平台首次上网日期，不代表论文的发表时间）