Case study of hydraulic fracturing for coal burst risk mitigation
Hongpu Kang1
Yongxue Xia1
Meihua Feng1
Chuang Lu1
Fuqiang Gao2
1.Coal Mining Research Institute,CCTEG,Beijing,China;State Key Laboratory of Intelligent Coal Mining and Strata Control(China Coal Research Institute),Beijing,China2.State Key Laboratory of Intelligent Coal Mining and Strata Control(China Coal Research Institute),Beijing,China;China Coal Research Institute,CCTEG,Beijing,China
摘要：Coal bursts pose significant safety and operational challenges in deep mining environments,necessitating effective mitiga-tion strategies to address high-stress concentrations and dynamic failure risks.This study evaluated the efficacy of hydraulic fracturing as a preconditioning tool at a longwall face of the Mengcun coal mine with strong coal bursts,Shaanxi Province.The program involved the systematic creation of a fracture network through high-pressure fluid injection,monitored via microseismic arrays,stress measurements,and hydrological sensors.Results demonstrated that hydraulic fracturing effec-tively redistributed in-situ stresses,reducing high-stress concentrations by up to 30％,lowering the frequency of high-energy microseismic events,and enhancing the stability of fractured zones.However,the presence of unfractured blind spots and interactions with pre-existing faults highlighted the need for optimized well placement and adaptive fracturing designs.These findings underscore the potential of hydraulic fracturing as a critical preconditioning tool in high-stress mining operations,which could provide a framework for improving safety and efficiency in similar geological and operational settings.
机标关键词：burstcasestudyriskcoalfracturinghydraulicmitigation
论文发表日期：2025-08-31
在线出版日期：2026-01-30（本平台首次上网日期，不代表文献的发表时间）
页数：15( 191-205 )
英文信息