摘要
针对新旺煤业8210孤岛工作面开采过程出现应力集中现象,对工作面顶板压力进行了连续监测,监测结果与邻近工作面顶板压力进行了对比,得出了8210孤岛工作面矿压显现规律。研究结果表明老顶来压步距为55 m,周期来压步距为15~20 m；与相邻工作面相比8210孤岛工作面具有顶板压力高,来压步距短的特点。介绍了超前支护及人工放顶相结合的矿压控制技术。
Aiming at the stress concentration in the process of coal mining in No. 8210 isola-ted working face of Xinwang Coal Industry,the roof pressures were monitored continuously,and the monitoring results were compared with the roof pressures of nearby working face,so the strata behavior law of No. 8210 isolated working face was worked out. The research results showed that mine roof weighting length was 55 m,the periodic weighting length was 15-20 m. Comparing with nearby working face,No. 8210 isolated working face had high roof pressures and short weighting length. The combined rock pressure control technology was also introduced,in-cluding advance support and artificial caving.
出处
《中国煤炭》
北大核心
2015年第11期64-67,共4页
China Coal
关键词
孤岛工作面
顶板压力
矿压显现
矿压控制
isolated working face
roof pressure
strata behavior
rock pressure control
