煤矿安全2019，Vol.50Issue(5)：64-66,3.DOI:10.13347/j.cnki.mkaq.2019.05.016
水力致裂弱化坚硬顶板保护邻空巷道现场试验
Field Test of Hydraulic Fracturing and Weakening of Hard Roof to Protect Gob-side Roadway
郑玉斌 1秦飞龙1
作者信息
- 1. 大同煤矿集团有限责任公司 马脊梁煤矿,山西 大同 037000
- 折叠
摘要
Abstract
For the problems of large deformation and strong underground behavior of gob-side roadway in Majiliang Coal Mine, the field experiment of hydraulic fracturing in hard roof was proposed. Through the comparison of monitoring borehole and stress varia-tion of borehole stress meter, the efficiency of hydraulic fracturing in hard roof was analyzed. The results show that the hydraulic fracturing could effectively weaken the hard roof and reduce the stress concentration of the working face. The research results pro-vide a foundation for the promotion application of hydraulic fracturing technology, and the effect is remarkable for controlling un-derground behavior of gob-side roadway. The successful implementation not only realizes the normal mining of 8103 working face, but also provides a measure for reducing stress concentration of gob-side roadway.关键词
坚硬顶板/水力致裂/邻空巷道/弱化/应力集中Key words
hard roof/hydraulic fracturing/gob-side roadway/weakening/stress concentration分类
矿业与冶金引用本文复制引用
郑玉斌,秦飞龙..水力致裂弱化坚硬顶板保护邻空巷道现场试验[J].煤矿安全,2019,50(5):64-66,3.
