煤矿安全2019，Vol.50Issue(7)：201-204,4.DOI:10.13347/j.cnki.mkaq.2019.07.049
上覆遗留煤柱区冲击地压综合防控技术
Comprehensive Prevention Technology of Rock Burst in Overlying Retained Coal Pillar Area
摘要
Abstract
To prevent the rock burst disaster when the northern 3#section of No. 18 coal seam crossed the overlying retained pillar area in Nanshan Coal Mine, based on the stress source and manifestation of stress, the factors causing the rock burst disaster were analyzed, the prevention measures including static partial pressure relief and dynamic load shock absorption and energy dissipation were formulated. Practice showed that the dynamic and static force superposed in the overlying retained pillar area, and the impact risk was high. Based on the thought of separate source prevention, the static load level of the surrounding rock of the roadway was reduced by fully mechanized caving mining and blasting pressure relief, the dynamic load disturbance was reduced by roof blasting pre-splitting and coal pillar hydraulic fracturing, and support reinforcement of full roadway section was designed to improve the anti-outburst ability, which ensured that the surrounding rock of the roadway was in low stress, and the micro-seismic energy was released in the form of low energy level and multi-frequency. It effectively avoided the occurrence of rock burst.关键词
冲击地压/煤柱/力源/水力压裂/防控/低应力Key words
rock burst/coal pillar/force source/hydraulic fracturing/prevention/low stress分类
矿业与冶金引用本文复制引用
孙刘伟,秦子晗,韩凉..上覆遗留煤柱区冲击地压综合防控技术[J].煤矿安全,2019,50(7):201-204,4.基金项目
国家重点研发计划资助项目(2017YFC0804204, 2016YFC0801403) （2017YFC0804204, 2016YFC0801403）
天地科技股份有限公司开采科技创新青年基金资助项目(KJ-2018-TDKCZL-11) （KJ-2018-TDKCZL-11）
