Questioning on Mine Water Inflow "Virtual Large Diameter Well" Method Prediction
Questioning on Mine Water Inflow "Virtual Large Diameter Well" Method Prediction
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发表时间：
2009
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通讯作者：
Cnacg Handan
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作者：
Cnacg Handan
矿井涌水量估算是矿井水文地质勘探中一项重要而复杂的工作，也是矿井水文地质勘探的基本任务之一。由于矿井水文地质条件的复杂性，只能采用近似计算的方法进行研究。“虚拟大直径井”法预测矿井涌水量因其简单易行，在一些勘探报告中经常出现。但从理论和实践两方面分析，该方法不适用于水位降深大、形状不规则的矿井涌水量预测，并以两个实例加以说明。建议尽可能采用数值模拟方法，并辅以其他类比和外推方法。
The estimation of mine water inflow is not only an important and complicated work,but also one of the fundamental missions in mine hydrogeological exploration. Because of the complexity of mine hydrogeological conditions,we can only study it in approximate computation way. Because of its simplicity,the "virtual large diameter well" method to predict mine water inflow is often appearing in some exploration reports. However,after making an analysis from theory and practices of the method,we have found that the method is not applicable to estimate water inflow of large drawdown and irregular shaped mines,and take two examples to explain. We advised that to use numerical simulation method when possible and supplemented by other analogy and extrapolation methods.