水岩作用的丹江口库区岩石力学性能试验  

Water-rock Interaction Between Rock and Reservoir Water in Danjiangkou Area

作　　者：谢向东[1] 刘素梅[2] 

机构地区：[1]湖北文理学院机械与汽车工程学院,湖北襄阳441053 [2]武汉大学土木建筑工程学院,湖北武汉430072

出　　处：《湖北文理学院学报》2014年第5期37-41,共5页Journal of Hubei University of Arts and Science

基　　金：湖北省自然科学基金资助项目(2012FFC05201;2011CDB267)

摘　　要：通过对丹江口库区广泛分布的砂岩、微风化辉绿岩和辉绿岩的标准化试样进行干燥、库水浸泡1周和浸泡3个月处理,然后对经过3种处理的试样的力学性能分别进行了不同围压下的三轴试验研究,以此探讨物理化学作用对库区岩石力学性能的影响,为丹江口水库续建工程诱发地震机理研究提供基础数据.结果表明,丹江口库水对岩石的化学作用不明显,但是物理作用明显,即经过库水物理化学作用后,岩石抗压强度、弹性模量和泊松比均下降,而且库水作用时间越长,力学参数降低越多.By the physical-chemical interaction between reservoir water and rock specimens in Danjiangkou area which are on dry state, have been soaked for one week and for three months. Physical-chemical interaction between water and rocks are experimented under different confining pressure on MTS in Danjiangkou reservoir, which can provide basic data for the study on the reservoir-induced seismicity mechanism of Danjiangkou reservoir. The results show that the chemical interaction is non-significant, but the physical action is notable. Values of physical mechanics parameters reduce with the increase of soaking-time.

关 键 词：丹江口库区 岩石力学 水岩物理化学作用 

分 类 号：TU45[建筑科学—岩土工程]