摘要
石圪台煤矿下水平3-1煤首采面在开采过程中出现了多次动载矿压剧烈显现,特别是在出第二段隔离煤柱17.4 m时立柱最大下沉达1.5 m,发生了压架事故,对工作面的安全高效生产造成严重威胁。为解决该剩余工作面回采难题,采取了动载矿压防治技术,取得了预期效果。
In Shigetai Coal Mine,the strong strata behaviors happened many times during the mining of №31201 first mining face. The maximum subsidence quantity of hydraulic support was about 1. 5m and the support crushing accident was happened. The strong dynamic load phenomenon influences the safety production of coal mining face. By taking the monitoring and prevention measures,the intensity level of dynamic load was decreased and the expected purposes were achieved.
出处
《陕西煤炭》
2015年第3期74-76,12,共4页
Shaanxi Coal
关键词
房柱式采空区
动载矿压
微震实时监测
矿压监测
地表岩移监测
goaf of room and pillar mining
dynamic load of strata behaviors
microseismic monitoring
mine pressure monitoring
surface movement monitoring
