裂隙岩体介质THM耦合问题中的渗透特性研究  

STUDY ON THE PERMEABLE BEHAVIOR OF COUPLED THERMO-HYDRO-MECHANICAL PROBLEM IN FRACTURE ROCK MASS MEDIA

作　　者：刘亚晨[1] 

机构地区：[1]中国科学技术大学地球与空间科学系

出　　处：《地质灾害与环境保护》2004年第1期80-84,共5页Journal of Geological Hazards and Environment Preservation

基　　金：国家自然科学基金资助项目(No:49772163)

摘　　要：　在前人就热、液、力三因素各自影响裂隙岩体渗透特性的研究和本文所进行的温度及附加应力作用下单裂隙岩样实验的基础上,综合分析了裂隙岩体THM耦合过程,以裂隙结构面的开度、岩体裂隙数(包括受温度影响开通裂隙数)、裂隙连通率、附加应力、剪切膨胀为研究对象,建立具有THM耦合特性的裂隙岩体渗流系数张量。Based on the existed researches on the permeable behavior affected by thermal(T), hydrological(H), and mechanical(M)respectively and the experiments of single fracture rock sample under temperature and tectonic stresses, this paper analyzed synthetically the coupled THM processes in the fracture rock mass media. The paper makes a thorough study on aperture of rock joins, the number of open cracks after heating in rock mass, the fracture interconnectivity, tectonic stresses, and the dilation due to shear sliding. The tensor field of permeability in the fracture rock mass with coupled THM properties is derived.

关 键 词：裂隙岩体 THM耦合 附加应力 裂隙结构面 剪切膨胀 

分 类 号：P642[天文地球—工程地质学] P583[天文地球—地质矿产勘探]