沿空留巷巷旁支护设计及实施

Design and Implementation of Side Support for Goaf Retaining Roadway

为解决煤矿综采工作面回采率低、煤炭资源浪费的问题,采用沿空留巷技术的无煤柱开采尤为重要。在对煤矿综采工作面沿空留巷顶底板地质条件分析的基础上,提出了针对沿空留巷巷旁支护的总体思路,并完成了针对巷旁支护的方案设计和灌浆、喷浆实施方案。最后,从经济效益角度说明了沿空留巷支护后的效果。

In order to solve the problems of low recovery rate and waste of coal resources in fully mechanized coal mining faces,it is particularly important to adopt pillar less mining with goaf retaining technology.On the basis of analyzing the geological conditions of the roof and floor of the goaf retaining roadway in the fully mechanized coal mining face,a general idea for supporting the side of the goaf retaining roadway was proposed,and the design of the relative side support plan and the implementation plan for grouting and spraying were completed.Finally,the effectiveness of retaining roadway support along the goaf was explained from the perspective of economic benefits.