多级围压下岩石三轴试验方法研究  

Research of Rock Triaxial Compression Test with Multilevel Confining Pressure

作　　者：张磊[1] 王宝学[1] 杨同[1] 

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,北京市100083

出　　处：《勘察科学技术》2007年第3期6-8,45,共4页Site Investigation Science and Technology

摘　　要：作者在刚性伺服三轴试验机上通过简单的控制方式,采用单块或少量试件,实现多级围压作用下加载的三轴试验,并对砂岩、泥岩等试验结果进行了分析。使用该方法确定的粘聚力低于常规试验值而内摩擦角变化不大;同时该方法可以降低岩石试件间的差异对试验结果的影响。Based on the servo-control triaxial testing machine, we can use a method of triaxial compression taking only one specimen or several specimens with multilevel confining pressure, and analyze the result of sandstone and mudstone. The cohesion determined by this method is lower than conventional triaxial compression, but the internal friction angle has a little change; and the method can reduce the influence of tests for differences of rock specimens.

关 键 词：岩石力学 岩石三轴试验 多级围压 长期强度 

分 类 号：TU458[建筑科学—岩土工程]