综采工作面超前支护措施研究与应用

Research and Application of Advance Support Measures for Fully-Mechanized Working Face

综采工作面在回采期间受采动压力、构造应力以及上覆岩层重力等影响,工作面顺槽压力加大,经常出现顶板下沉、底板鼓起等现象,不仅影响着工作面高效回采,而且很容易发生安全事故。西山煤电集团马兰矿对28302回风顺槽(502巷)采取架设工字钢棚及迈步式超长锚索支护煤壁等超前支护方法,保证了工作面安全顺利回采。

During the mining, affected by mining stress, tectonic stress, and overburden gravity, there appear phenomenons such as increasing pressure in coal face return airway, roof subsidence, bottom floor heave etc, which not only affects the high efficient extraction, but is also easy to bring about safety accidents. Malan Mine, Xishan Coal and Electricity Group decided to set up 28302 i-steel shed and super long anchor cable support method, along the trough（lane 502）, which ensures the security of smooth recovery of the working face.