Thermal-hydro-mechanical coupling damage model of brittle rock

被引：0
|
作者：
李鹏 [1 ]
饶秋华 [1 ]
李卓 [1 ]
马雯波 [1 ]
马彬 [1 ]
机构：
[1] School of Civil Engineering, Central South University
来源：
JournalofCentralSouthUniversity | 2014年 / 21卷 / 03期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
damage model; THM coupling mechanism; permeability test; THM coupling test; brittle rock;
D O I：
暂无
中图分类号：
TU45 [岩石（岩体）力学及岩石测试];
学科分类号：
0801 ; 080104 ; 0815 ;
摘要：
Based on fluid mechanics, thermodynamics and damage mechanics, thermal-hydro-mechanical(THM) coupling damage model of brittle rock is established by analyzing THM coupling mechanism, where THM coupling damage variable DTHM is dominated by TH coupling damage variable DTH, TM coupling damage variable DTM and HM coupling damage variable DHM, and DTH is firstly expressed in term of dimensionless total thermal conductivity of the water Nu. Permeability test, uni-axial compression test and THM coupling test are conducted to measure the permeability, elastic modulus and THM coupling stress-strain curves of brittle rock. The tested values of THM coupling elastic modulus THME? are in good agreement with the predicted values of THM coupling elastic modulus ETHM, which can verify the newly established THM coupling damage model.
引用
收藏
页码：1136 / 1141
页数：6
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