软岩巷道复杂空间支护设计研究及工程实践

Research and Engineering Practice of Complex Space Support Design of Soft Rock Roadway

本文在辛置煤矿310水平二采区复杂空间巷道围岩力学参数基础上,通过建立数值模型,研究分析了不同锚杆锚索桁架、锚喷、U型棚条件下复杂巷道应力场和位移场,现场工程实践证明,提出的“锚杆锚索+锚喷”支护方案有效解决了复杂空间支护维护困难的难题。

In this paper,based on the mechanical parameters of surrounding rock of complex space roadway in the second mining area at the 310 level of Xinzhi coal mine,a numerical model is established,and the stress field and displacement field of complex roadway under different bolt-anchor truss,bolt shotcreting and u-shed conditions are studied and analyzed.Field engineering practice shows that the proposed"bolt anchor Cable+bolt shotcreting"support scheme effectively solves the difficult problem of complex space support maintenance.