摘要
通过在黄县煤田已开采区地表设立地表岩移观测站和对井下二次开采引起的地表移动和变形进行观测,获得了相应的岩移参数,分析了工作面出现断层、冒顶、出水现象对地表岩移的影响,为今后二次开采建筑物保护煤柱留设提供了技术依据。
Surface rock movement observation posts are erected on the surface of the mined area of Huanxian coal field. Observation is conducted of the surface rock movement caused by the secondary underground mining. With the surface rock movement parameters obtained, analysis is carried out on the influence of the faults, roof cavings and water inrush at the underground faces to the surface rock movement. This practice provides technical basis for the secondary mining of the protective coal pillars under surface structures.
出处
《中国煤炭》
北大核心
2008年第8期80-82,共3页
China Coal
关键词
软岩地层
二次开采
构造影响
岩移规律
soft rock strata, secondary mining, tectonic influence, rock movement regularity
