摘要
水体下开采是煤矿企业目前所面临的技术难题之一。针对军城煤矿12下煤层赋存地质条件、水文地质条件以及南阳湖水的现状,依据"三下"开采规程,对12下煤层导水裂隙带高度进行计算,得到防水安全煤岩柱尺寸;结合地表下沉变形预计,对南阳湖堤坝的整体稳定性进行分析;确定南阳湖下12下煤层全采是安全可行的。
Mining under water bodies is one of the technical problems of coal mining enterprises facing. In view of the occurrence geological conditions of 12 coal seam,hydrological and geological conditions of juncheng coal mine and status of Nanyang lake,on the basis of the ＂ three under＂ mining rules,calculate the height of water flowing fractured zone after mining 12 coal seam,have waterproof safety pillar size; combined with the surface subsidence deformation prediction,analyzed the overall stability of Nanyang lake dam; mining 12 coal seam under Nanyang Lake completely is safe and feasible.
出处
《山东煤炭科技》
2014年第5期14-16,共3页
Shandong Coal Science and Technology
关键词
导水裂隙带
“三下”开采规程
沉陷预计
安全可行
height of water flowing fractured zone ＂three under＂mining subsidence prediction safe and feasible
mining rules
