永安煤矿深部巷道锚杆支护优化设计研究

Research on Optimized Design of Bolting Deep Roadway in Yong'an Coal Mine

针对永安煤矿深部开采地质条件,进行锚杆工作阻力监测、巷道表面相对位移监测、巷道围岩松动圈测试,对现有支护参数进行了评价,认为目前采用的支护参数已不能适应当前地质条件。采用理论计算法、实测法和数值计算三种方法相结合的手段,对永安煤矿317工作面上顺槽622巷道进行了锚杆支护方案设计,确定了合理的巷道支护参数,对研究深部巷道围岩控制技术与支护方法具有一定参考价值。

In view of the geological conditions of deep mining in Yong’an Coal Mine, by monitoring of bolting resistance,monitoring of tunnel surface relative displacement, testing loose circle of the roadway wall rock, the existing support parameters are evaluated. The currently used supporting parameter has not been able to adapt to the current geological conditions. Bolting support scheme of 622 roadway in 317 working face of Yongan coal mine is designed. three kinds of methods such as theoretical calculation method, experimental method and numerical calculation are adopted, the reasonable supporting parameters are determined, which has certain reference value for the study of deep roadway wall rock control technology and support method.