摘要
水库下采煤一方面要确保煤矿井下安全,同时还要保护地表水资源和水库坝体的安全.根据水体下采煤的技术理论,在现场调研的基础上,结合煤矿具体的地质采矿条件,进行了上覆岩层破坏高度的计算、地表移动和变形的预计,从而对水库水体下采煤的安全性进行分析、评价和论证.结果表明:各工作面开采以后,上覆岩层中导水裂缝带发育的最大标高与基岩顶部边界之间有较厚的基岩岩柱,即导水裂缝带不会波及到地表水水库.同时,根据地表移动和变形预计结果,分析了各工作面开采对水库坝体的影响.最后提出了相应的技术措施,确保水库下安全采煤.
Coal mining under a reservoir has to ensure not only the safety of the underground mining but also the safety of surface water resources and the dam of the reservoir. Based on the theories of mining under water body and reconnaissance of field, the fractured zones in overburden strata were calculated and surface movement and deformation were pre-calculated according to the specific mining and geologic conditions. Then the security of mining under a reservoir was analyzed and evaluated. The results show that there is a very thick overburden strata and soil between the maximal elevation of the fractured zone and the bottom of the reservoir, indicating that the fractured zone cannot touch the water body. In the mean time, based on the results of surface movement and deformation predicted, the effects of mining on the dam were analyzed. Finally, the correlative technologies were proposed to ensure the safety of the mining under a reservoir.
出处
《采矿与安全工程学报》
EI
北大核心
2006年第3期324-328,共5页
Journal of Mining & Safety Engineering
基金
河南省杰出青年科学基金项目(0612002100)
关键词
水库
堤坝
水体下采煤
采动损害
reservoir
dam
mining under water bodies
mining damage
作者简介
郭文兵（1969-），男，河南省宁陵县人，副教授，工学博士，从事岩层移动和“三下”采煤方面的研究．E-mail：guowb@hpu．edu．cn;Tel：0391—3987901
