Characterization of water bursting and discharge into underground mines with multilayered groundwater flow systems in the North China coal basin
Characterization of water bursting and discharge into underground mines with multilayered groundwater flow systems in the North China coal basin
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DOI：
10.1007/s10040-006-0021-8
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发表时间：
2006-02
影响因子：
2.8
通讯作者：
Qiang Wu;Mingyu Wang
中科院分区：
文献类型：
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作者：
Qiang Wu;Mingyu Wang
根据中国煤盆地北部场地条件的特点和突水透水事件的分析，提出了多层地下水流系统下矿井突水涌水特征的概念框架。综合分析了北中国煤田地下水三维流动系统建立的水文地质条件，揭示了不同的垂向水力连通路径或渠道。这些联系包括多层地下水流动系统中的岩溶陷落柱、断层或断裂带、埋藏的风化带和含水层中的裂隙网络。研究了井下水流系统的基本特征和不同的接线路径对井下突水和涌水的影响。研究表明，正确识别和充分认识三维多层地下水流系统及其各种垂向水力连通机制，对于正确防治突水灾害和预测地下矿山涌水量具有重要意义。为地下多层流动系统矿井突水与涌水特征的研究提供了有价值的指导意见。
A conceptual framework for characterization of water bursting and discharge into underground mines with multilayered groundwater flow systems is presented, based on the features of the site conditions and analyses of the water bursting and mine inundation events of the North China coal basin. Comprehensive analyses of the hydrogeological conditions for establishment of the three-dimensional groundwater flow systems of the North China coal basin revealed different vertical hydraulic connection paths or channels. These connections include karst collapse columns, fault or fracture zones, buried weathering zones, and fracture networks in aquitards, within the multilayered groundwater flow systems. Also examined, was the effect of the primary features of the flow system and those different connection paths on water bursting and discharge into the underground coal mines. It was demonstrated that appropriately identifying and adequately understanding the three-dimensional multilayered groundwater flow systems and those various vertical hydraulic connection mechanisms are critical for appropriately preventing water bursting hazards and predicting water discharge into underground mines. A valuable guideline is presented on characterization of water bursting and discharge into underground mines with multilayered groundwater flow systems.