采矿与安全工程学报Issue(1)：165-171,7.DOI:10.13545/j.cnki.jmse.2016.01.026
平行钻孔-套筒致裂法测试地应力试验研究及工程应用
Engineering application and experimental study of parallel boreholes sleeve fracturing method for stress measurement
摘要
Abstract
In view of limitations of the sleeve fracturing method for deep in-situ stress testing, a sleeve expansion pipe was improved for ground stress measurement. Synthesizing the characteristics of sin-gle-hole sleeve fracturing method and control fracturing method, a more operable ground stress meas-urement technology of parallel boreholes sleeve fracturing method was provided in this paper. Addition-ally, the formulas for the single-hole sleeve fracturing and the control fracturing were modified reasona-bly through the testing. The results show that the correction coefficients obtained for single-hole sleeve fracturing method was 0.78, while that for control fracturing method was 0.83. In-situ test was carried out for main track roadway buried in 965 m underground located at Zhuji east coal mine. The test results show that the maximum principal stress is 23.16 MPa in the west-east direction, the intermediate prin-cipal stress is 21.04 MPa in the vertical direction, and the minimum principal stress is 13.01 MPa in the north-south direction.关键词
套筒致裂法/地应力/平行钻孔/模型试验/现场测试Key words
sleeve fracturing method/in-situ stress/parallel boreholes/model experiment/in-situ test分类
矿业与冶金引用本文复制引用
荣传新,彭世龙,程桦,黎明镜,程帅,袁小永..平行钻孔-套筒致裂法测试地应力试验研究及工程应用[J].采矿与安全工程学报,2016,(1):165-171,7.基金项目
国家自然科学基金项目(50874002) （50874002）
