矿坑涌水量预测的方法、步骤

2025-03-15 09:14:24
推荐回答(1个)
回答1:

可利用表10-1中所列的各种地下水资源评价方法进行矿坑涌水量。计算步骤如下:

1)建立符合客观实际的水文地质模型。主要工作包括:概化已知状态下矿区的水文地质条件,给出未来开采矿坑的内边界条件,预测未来开采条件下的外边界条件。

2)选择合适的计算方法,建立正确的数学模型。目前常用的计算方法有类比外推法(水文地质比拟法、Q-S曲线法)、相关分析法、水均衡法、解析法、数值法等。

3)计算、评价预测。按要求进行有关计算评价和预测。

最后指出,实质上,如果将矿井排水视为供水“大井”在开采取水,则进入矿山井巷的预测涌水量,也就相当于对供水井或水源地进行的地下水资源可开采量的计算和评价,两者应用的计算预测或评价方法基本上是相同的。只是因具体目的任务不同、条件不同,在应用原则、观点和具体处理上有所区别而已。因此,本章仅就在矿坑涌水量预测中应用较多的类比外推法、解析法、水均衡法等方法在矿坑涌水量预测中的应用条件、特点和与供水有区别之处加以介绍。而其他方法(如数值法、相关分析法等),与供水水文地质基本相同,不再赘述。

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