用套筒致裂法测试岩体应力反弹性模量与讨论

A Measurement of Rockmass Stresses and Elastic Modulus by Sleeve Fracturing Method

在改进套筒致裂装置性能的基础上，使压力-体积曲线的记录与处理得到改善，对潘三矿东采区的测试实践表明，得出的压力-体积曲线较好地反映了钻孔围岩随内压增加所表现出的力学性质。还探讨了如何通过改进套筒致裂技术来实现由围岩应力测试发展到原岩应力测试以及围岩损伤区的测定。

Based on improving the seal function of sleeve, the sleeve fracturing method becomes more convenient for in-situ operation and more reliable in measurement. This is confirmed by the rockmass stresses test at the third Pan n Mine of Huainan Mining Administration.Sometimes it is needed to determine the rockmass damage zone around a tunnel for the purpose of sup-port. Measuring this damage zone by sleeve fracturing method is for the first time put forward in this paper.