高承压水致断层长期流变失稳状态下巷道支护技术

Technology of Roadway Support of High Confined Water Fault under Instability State with Long-term Rheology

针对断层破碎带大断面巷道在长期流变与泥化失稳围岩状态下的支护问题,从分析巷道承压水、围岩泥流体泥化变化入手,采取有效的导解承压水技术、防强流变突喷技术,研发以点柱置换、大板底支护封堵、缓释叠加应力为特点的巷道支护技术,支护稳定性较传统支护显著提高,为同类巷道支护提供范例。

Aiming at the supporting problems of fracture zone large-scale roadway under instability state with long-term rheology,the paper analyzed roadway confined water and the changing of surrounding rock flowing mud argillization,used effective relieving confined water technology and strong rheology spurting prevention technology,researched and developed roadway supporting technology of pillar displacement,large floor supporting blocking and slow releasing superposition stress,which proved supporting stability was improving compared with traditional support and provided examples for similar roadway supporting.