摘要
为了掌握深部卸压厚煤层开采矿压显现特征,结合丁集煤矿13-1煤1282(3)和1141(3)工作面地质和开采技术条件,通过现场实测综采面卸压开采矿压显现特征,对比分析表明,卸压开采使得被保护层回采期间矿压显现强度有所降低,支架适应性良好,煤壁片帮情况改善,有利于采场围岩控制,为类似地质条件下工作面开采提供一定的参考依据。
In order to grasp the strata behavior characteristics of de-stressed mining in deep thick coal seam,in-situ observation and comparison was conducted for strata behaviors of de-stressed mining in 1282（ 3） and 1141（ 3） working face Dingji coal mine,based on the geological and production technology conditions. The result shows that,the strata behaviors intensity reduces in de-stressed mining,leading to favorable adaptability of supports and alleviation of rib spalling.
出处
《煤炭工程》
北大核心
2014年第12期93-96,共4页
Coal Engineering
基金
国家自然科学基金(51374011)
关键词
深部开采
卸压开采
大采高
矿压显现
deep mining
destressed mining
large cutting height
strata behaviors
