Coal mining under aquifers in China: a case study
Coal mining under aquifers in China: a case study
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DOI：
10.1016/j.ijrmms.2003.01.005
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发表时间：
2004-06
影响因子：
7.2
通讯作者：
Jincai Zhang;Baohong Shen
中科院分区：
文献类型：
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作者：
Jincai Zhang;Baohong Shen
我国许多煤矿的水文地质条件十分复杂。近采煤层突水频繁发生，煤矿在采煤过程中经常遭受严重的水害。因此，地下水灾害的开采安全是矿山经营者和研究人员共同关注的问题。确定采动引起的岩层破坏和岩层导水系数的变化对预测和防治矿井突水具有重要意义。本文概述了我国含水层下采煤的现状，并介绍了含水冲积层下采煤的实例。以陕西省大柳塔煤矿为例，采用现场调查、物理模拟和数值分析相结合的方法，对煤矿开采引起的应力重分布、岩层破坏和导水系数增大进行了研究。
The hydrogeological conditions are very complex in many coal mines in China. Water inrushes from aquifers near mining coal seams occur frequently, and coal mines often suffer from serious water disasters during coal extraction. Therefore, mining safety from groundwater hazards is a common concern of both mine operators and researchers. It is of vital importance to determine mining-induced strata failure and strata hydraulic conductivity variations for predicting and preventing water inrushes in coal mines. This paper summarizes the current situations of coal mining under aquifers in China, and presents a case study for mining under a water-bearing alluvium. The case study consists of field investigations, physical simulation and numerical analyses to evaluate the stress redistribution, strata failure and hydraulic conductivity enhancement resulting from coal extraction in Daliuta Coal Mine, Shaanxi Province, China.