摘要
本文介绍了用套筒致裂量测岩体应力及力学性质的方法及量测结果。研究结果表明,岩体的基本参数——主应力的大小和方向、岩体的弹性和刚性,可以用成本低廉的钻孔套筒致裂装置进行量测。用套筒致裂法不仅能测出岩体在弹性阶段的变形特性,而且能测出非弹性阶段的特性,从而可为矿山应力监控方法提供可靠的数据基础。
Methods and results of measuring surrounding rock stresses andbehaviour are presented in this paper. It is found that these papameters can be measured in situ by a simple and practical technique with nonsophistieated and inexpensive instruments.Specifically, a drillhole dilation technique employing a hydraulic borehole device was used to determine both pre-mining ground pressure and the modulus of rigidity.These devices enable in situ measurement not only of elastic, but also post-elastic, yielding, and failure condition of rock masses, so as to benefit the establishishment of the stress control method on a scientific foundation.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
1992年第2期200-208,共9页
Chinese Journal of Rock Mechanics and Engineering
关键词
套筒致裂
巷道
围岩
应力
力学性质
sleeve fracturing, rockmass measurement, deformation behaviour of rockmasses
