摘要
传统的试验仪器和方法仅能测试岩石破坏前的渗透系数.文中介绍了一种自行设计并已获国家专利的破碎岩石压实渗透仪,依靠其与MTS815.02岩石力学伺服系统连接匹配,利用MTS的两套闭环系统施加轴压和孔压,可测试压力作用下岩石破碎后的渗透系数.对破碎砂岩进行高压下的渗透测试进一步说明该方法的可行性,利用该方法得出的测试结果,对破碎岩体中渗流问题研究及灾害防治具有参考价值.
Traditional testing instruments and methods provide only the permeability of prebroken rock. A selfdesigned seepage instrument for overbroken stone is suggested here to analyze the permeability of postbroken rock in compression. The instrument works with the MTS815.02 Rock Mechanics Testing System which has two independent sets of close loops exerting axial force and porosity pressure respectively. The feasibility is justified in the experiment of testing permeability of crushed sandstone in heavy compression, and some valuable results from such an experiment are shown here.
出处
《实验力学》
CSCD
北大核心
2003年第1期56-61,共6页
Journal of Experimental Mechanics
基金
国家自然基金重点项目(50134040)
国家杰出青年基金项目(50225414)
教育部博士点基金项目(20010290003)资助
关键词
破碎岩石
渗透性
实验
测试方法
overbroken rock
permeability
experiment
testing method
