煤矿安全2017，Vol.48Issue(10)：171-173,177,4.DOI:10.13347/j.cnki.mkaq.2017.10.046
岩溶湖及巨厚灰岩含水层下采煤安全性分析
Analysis on Mining Safety Under Karst Lakes and Thick Limestone Aquifer
曹新款1
作者信息
- 1. 中煤科工集团唐山研究院有限公司,河北唐山063012
- 折叠
摘要
Abstract
The paper,according to the geological and hydrogeological conditions as well as karst development,discusses the damage height in overlying strata and the size of water-proof coal and rock pillars based on the analysis of the structure of overlying strata.Besides,it makes analysis on mining safety under Karst lakes and thick limestone aquifer.And it also studies the influence of coal seam mining on Karst lakes from the perspective of movement and deformation.Results show that the height of water-conducting crack zone is 66.55 m,above which,there are aquifuge P2I5,aquifuge T1f1-1 and aquifuge T1f2-2,and the water from Karst lakes as well as from limestone in Changxing and Feixianguan respectively will not go in coal mines.Therefore,working under mines is safe and will not lead to the collapse of karst water level in lake,which proves that it hardly leads to secondary geological hazards.Therefore,mining under Karst lakes and thick limestone aquifer is safe.关键词
岩溶湖/水体下采煤/覆岩破坏/安全开采/移动变形Key words
Karst lake/mining under water/damage of overlying strata/safety mining/movement and deformation分类
矿业与冶金引用本文复制引用
曹新款..岩溶湖及巨厚灰岩含水层下采煤安全性分析[J].煤矿安全,2017,48(10):171-173,177,4.
