摘要
基于石碣峪煤矿4012运输顺槽掘进期间受上覆含水层积水影响,巷道掘进初期顶板淋水量达4.7 m3/h,不仅影响巷道正常掘进,而且顶板支护受淋水软化作用,导致顶板支护失效现象严重的问题,决定对上覆含水层采取合理有效的探放水措施。通过实际应用效果来看,4012运输顺槽采取探放水施工后,巷道顶板淋水现象得到了有效改善,取得显著应用成效。
Based on the influence of water accumulation in the overlying aquifer during the excavation of 4012 transport chute in Shijieyu coal mine, the amount of water dripping from the roof plate at the early stage of the roadway excavation reaches 4.7 m3/h, which not only affects the normal excavation of the roadway, but also causes the roof plate support to fail seriously due to the softening effect of the dripping water. In order to ensure the safety of the roadway and prevent water penetration accidents, it was decided to adopt reasonable and effective water detection and discharge measures for the overlying water layer.
作者
王晓辉
Wang Xiaohui(Jinneng Holdings Coal Group Shijieyu Coal Company Limited,Shuozhou Shanxi 036002)
出处
《机械管理开发》
2022年第8期197-198,201,共3页
Mechanical Management and Development
关键词
掘进巷道
探放水设计
顶板淋水
支护失效
roadway excavation
water detection and discharge design
roof drenching
support failare