长汀矿区矿坑涌水量模糊水文地质比拟法预测

发布时间：2018-03-09 15:06

本文选题：水文地质条件　切入点：地下水　出处：《金属矿山》2017年03期 　论文类型：期刊论文

【摘要】：基于长汀矿区勘探资料,分别从含水层组特征、断裂构造带水文地质特征、地下水补给、径流、排泄特征、矿井充水类型等方面对该矿区的水文地质条件进行了分析,结果表明:1矿区侵蚀基准面以上的主要充水来源为大气降水、接触裂隙水和断层接触水;2矿区侵蚀基准面以下的主要充水来源为接触裂隙水和断层接触水;3矿区地下水补给主要来源于大气降水,浅部可直接获得补给,深部通过裂隙和断层间接获得降水补给。在上述分析的基础上,基于矿区用水量实测资料,采用模糊水文地质比拟法、传统水文地质比拟法预测的矿坑涌水量分别约为44.69,46.73m3/h。尽管模糊水文地质法的预测结果略小于传统水文地质比拟法,但由前者充分考虑了降雨量、水头降深、开采面积、给水度、渗透系数和补给水源等因素,故其预测结果相对于传统水文地质比拟法而言可靠性更强。分析结果对于精确预测该矿区矿坑涌水量,确保井下安全开采有一定的参考价值。
[Abstract]:Based on the exploration data of Changting mining area, the hydrogeological conditions of the mining area are analyzed from the aspects of aquifer group characteristics, hydrogeological characteristics of fault structural zone, groundwater recharge, runoff, discharge characteristics, mine water filling type, etc. The results show that the main source of water filling above the erosion datum is precipitation. The main water filling sources below the erosion datum level of contact fissure water and fault contact water are that the groundwater recharge of contact fissure water and fault contact water is mainly derived from atmospheric precipitation, and the shallow water can be recharged directly. On the basis of the above analysis, based on the measured data of water consumption in mining area, fuzzy hydrogeological analogy method is used. The traditional hydrogeological analogy method is used to predict the water inflow of the mine pit about 44.69% 46.73 m3 / h, respectively. Although the result of the fuzzy hydrogeological method is slightly smaller than that of the traditional hydrogeological analogy method, the former takes full account of the rainfall, the depth of the water head, the mining area and the water supply degree. Because of the factors such as permeability coefficient and recharge water source, the prediction result is more reliable than the traditional hydrogeological analogy method, and the analysis results have certain reference value for accurately predicting the mine water discharge in the mining area and ensuring the safe mining in the downhole.
【作者单位】：河海大学地球科学与工程学院;
【基金】：国家自然科学基金项目(编号:41572209)
【分类号】：P641.4;TD742

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