摘要
处于地温环境中的深部岩石,其力学特性与地表岩石有极大差异。温度对岩石力学性质的影响机理包括:矿物颗粒热膨胀;含水性及比例;岩石孔隙结构;矿物结构及成分。随温度增加,岩石变形特征从脆性向塑性变化,峰值强度降低,弹性模量降低,压密阶段应变变长,线弹性阶段的应变降低,峰后阶段的应变增加,抗压强度降低,弹性模量降低。
Deep rocks in the geothermal environment have great differences with surface rocks.This paper summarizes the mechanism of the temperature on the mechanical properties of rock,such as mineral particles in thermal expansion,water content,pore structure,mineral structure and composition.In general,with temperature increasing,rock deformation characteristics change from brittle to plastic,peak strength becomes lower,the strain in compaction phase increases,the strain of the linear elastic stage decreases,the strain of the post-peak phase increases,the compressive strength becomes lower,and the elastic modulus decreases.
出处
《重庆科技学院学报（自然科学版）》
CAS
2012年第5期83-85,共3页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
中国石油科技创新基金项目(2009D50060302)
四川省科技计划项目(09ZQ026-084)
关键词
温度
力学性质
应力应变
抗压强度
弹性模量
temperature
mechanical properties
stress and strain
compressive strength
elastic modulus
