三维应力作用下砂岩单裂隙渗流规律试验研究  

Experiment research on the laws of seepage in sandstone within single fracture under triaxiality stresses

作　　者：侯昭飞[1] 纪洪广[1] 王金安[1] 李伟[2] 

机构地区：[1]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083 [2]煤炭科学研究总院,北京100013

出　　处：《中国矿业》2011年第5期107-110,共4页China Mining Magazine

基　　金：国家高技术研究发展计划(863计划)重点项目(项目编号:2008AA062104);国家重大基础研究项目(973计划)(项目编号:2010CB226803);国家科技支撑计划(项目编号:2008BAB33B03)

摘　　要：使用劈裂方法在粗砂岩岩样上制造裂隙来模拟粗砂岩天然岩体的张性裂隙,在电液伺服岩石三轴试验机上开展单裂隙渗流应力耦合试验。在三维应力下,检测在不同围压、水压情况下,渗流量随时间的变化情况,对单裂隙岩体在三维应力作用下的渗流规律作了探究。A single fracture in sandstone rock was formed by splitting to simulate the natural extension fracture.Coupling experiments on stress and seepage of the rock with single fracture were performed through electric-fluid serving triaxial compression machine.Examing how seepage flow changes with time by different confining pressures and water pressures under triaxial stresses.And making a discussion on the seepage laws in sandstone within single fracture under triaxiality stresses.

关 键 词：单裂隙 岩体渗流 试验 渗流应力耦合 

分 类 号：P542.3[天文地球—构造地质学]