摘要
为了防止罐子沟河床区强含水层对矿井造成重大水害,罐子沟煤矿实施了大规模水文补勘工程,认识到罐子沟河床区6号煤顶板砂岩裂隙含水层的富水性不均匀,沿罐子沟划分了4个富水性分区,并且远离罐子沟,其具有富水性减弱的特点,制定了先易后难、分区治理开采的技术途径。采取了井上、下联合疏排水的方法,基本疏干了Ⅱ区砂岩含水层;根据井下探放水孔的探测结果,将工作面布置在无水区域等,实现了Ⅱ区6101和6102工作面的顺利开采。结果表明河床区强含水层分区疏干开采的方法是可行的,是我国河下采煤的新经验。
In order to prevent the rich water beating body of the fiver bed in Guanzigou Mine to cause a serious water disaster to the mine, a large scale hydrological survey project was conducted in the Guanzigou Mine. It was found that the watery in the sandstone cracking water bearing strata of No. 6 seam roofs under the river bed was nonuniform. There were 4 watery blocks divided along the Guanzigou. Based on the features of the watery far from the Guanzigou reduced, a technical access of an easy case first to be handled and then difficulty to be handled, and mining with the block control. A method of the surface and mine underground combined water drainage was applied to drain the water beating stratum in the sandstone of Ⅱ block. With the survey results of the underground water Survey boreholes, the coal mining face would be located in the no water area and thus 6101 and 6102 coal mining faces in the Ⅱ block could be successes for the coal mining operations. The results showed that the mining method with block water drainage in rich water stratum under the river bed is feasible and will be a new experience for coal mining under the river in China.
出处
《煤炭科学技术》
CAS
北大核心
2009年第11期91-94,共4页
Coal Science and Technology
基金
国家重点基础研究发展计划(973计划)资助项目(2007CB209402)
关键词
强含水层
安全采煤
突水分区
rich water bearing body
safety coal mining
water inrush block
