摘要
山西某矿首采工作面位于季节性河流下,开采特厚煤层。通过现场踏勘、水文地质条件分析、覆岩岩性分析及导水断裂带高度预计等方法,对工作面上方各含水体对工作面开采的影响进行了分析,并确定了防水安全煤岩柱的留设高度,结合矿井充水条件分析,最终确定在水体下该首采工作面可以安全开采。
The first mining face of a coal mine in Shanxi Province is located under seasonal rivers, and it is the extremely thick coal seam mining. By the methods of field exploration, analysing the hydrological condition and the lithology of upper rocks,and forecasting the height of the water conducted zone,the influences of water bodies above the face to working face mining were analysed, the height of waterproof coal and rock pillar was determined,too. Combined with the condition of water filling in coal mine, a conclusion was drawn that the first mining face under water bodies could be mined safely.
出处
《中州煤炭》
2014年第9期39-41,共3页
Zhongzhou Coal
关键词
水体下
工作面
特厚煤层
安全开采
under water
working face
extremely thick coal seam
safety mining
