摘要
通过丹江口水库库区代表岩样物理力学性能试验研究,得到岩样基本物理参数及其在干燥状态、自然状态和饱和状态下的单轴抗压强度、弹性系数和岩石软化系数。试验结果表明,岩石抗压强度随弹性模量的增加而增加,岩石弹性模量与孔隙率具有一定的关系,岩石吸水后强度弱化程度与孔隙率和岩石矿物成分密切相关,并且建立了岩石单轴抗压强度与弹性模量,孔隙率与弹性模量之间关系式。岩样的最终破坏形式可归纳为6种。研究成果可为丹江口水库诱发地震评价研究提供基础数据和参考。
By the experimental study on the physical and mechanical properties of typical rock in Danjiangkou reservoir area, many data was achieved, respectively including rock basic physical parameters, uniaxial compressive strength and elastic coefficient in three different status （dry status, natural status and saturate status）, as well as rock softening coefficient. Experimental study shows that rock compressive strength rises with the increase of elasitic modulus, and that the elastic modulus of rock is related to its porosity, and that rock softening coefficient has close relation with porosity and rock mineral. The equations, including between elastic modulus and uniaxial compressive strength and between elastic modulus and porosity, are acquired. The failure can be sorted into 6 forms. The experimental results can provide basic data for the study on the evaluation of reservoir induced-seismicity in Danjiangkou reservoir area.
出处
《华中科技大学学报（城市科学版）》
CAS
2007年第4期54-58,共5页
Journal of Huazhong University of Science and Technology
基金
湖北省环境岩土工程重点实验室开放课题(T110602)
武汉大学土木建筑工程学院青年教师创新基金(02)
关键词
丹江口水库
岩石试验
力学性能
水库诱发地震
Danjiangkou reservoir
rock experiment
mechanical property
reservoir-inducedseismicity
