| 高 磊,李红生,刘 璎.平凉某煤田井筒水文地质特征及涌水量预测研究[J].甘肃地质,2025,34(3):60-67 |
| 平凉某煤田井筒水文地质特征及涌水量预测研究 |
| HYDROGEOLOGICAL CHARACTERISTICS AND WATER INFLOW PREDICTION OF A COAL MINE SHAFT IN PINGLIANG |
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| DOI： |
| 中文关键词: 地质灾害 防治工程 层次分析法 评价指标体系 煤田水文地质 |
| 英文关键词:vertical shaft prediction of water inflow steady flow COMSOL software hydrogeological characteristics |
| 基金项目:中国煤炭地质总局科技创新项目（项目编号：ZMKJ-2023-JBGS01） |
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| 中文摘要: |
| 井筒涌水量预测作为煤矿井筒设计中极为关键的一项技术参数，其准确性直接关乎煤矿建设成本与安全运营。 为有效提升矿井井筒预测涌水量的精准度，本文以甘肃安新煤田作为研究区域，新柏煤矿副立井井筒为研究对象，深入开展了井筒水文地质特征的探讨以及涌水量预测的研究工作。 在对该区域水文地质特征剖析时，详细研究了地层岩性组合、含（隔）水层性质等，通过这些分析，清晰地阐述了井筒所处地下水系统的复杂性。 针对2个井筒检查孔多层含水层，在稳定流条件下开展的抽水试验获取的关键水文地质参数。 在此基础上，运用了水文地质曲线外推法、解析法及COMSOL软件数值模拟法等多种涌水量预测方法，得出涌水量预测结果。 结合井筒实际涌水量对比分析，进一步提高了立井井筒涌水量预测的准确性。 对于科学指导煤矿区立井井筒建设成本的合理控制以及后续安全运营，均具有不可忽视的重要意义。 |
| 英文摘要: |
| The prediction of the water inflow of the shaft is a crucial technical parameter in the design of coal mine shafts, and its accuracy is directly related to the construction cost and safe operation of coal mines. In order to effectively improve the accuracy of the predicted water inflow of the mine shaft, this paper takes the Anxin Coalfield in Gansu Province as the research area and the auxiliary vertical shaft of Xinbai Coal Mine as the research object, and conducts in -depth research on the hydrogeological characteristics of the shaft and the prediction of the water inflow. When analyzing the hydrogeological characteristics of this area, the combination of stratigraphic lithology, the properties of aquifers（and aquitards） and other aspects were studied in detail. Through these analyses, the complexity of the groundwater system in which the shaft is located was clearly expounded. The key hydrogeological parameters were obtained through pumping tests carried out under steady flow conditions for the multi-layer aquifers of the two shaft inspection holes. On this basis, various water inflow prediction methods were applied, such as the hydrogeological curve extrapolation method, the analytical method, and the numerical simulation method using COMSOL software, and the predicted results of the water inflow were obtained. By comparing and analyzing with the actual water inflow of the shaft, the accuracy of the prediction of the water inflow of the vertical shaft was further improved. This research is of great significance that cannot be ignored for scientifically guiding the reasonable control of the construction cost of the vertical shaft in the coal mining area and the subsequent safe operation. |
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