不同方法在花草滩煤矿矿井涌水量计算中的比较

Comparison of Different Methods in the Calculation of Water Inflow in Huacaotan Coal Mine

矿井涌水量计算是煤矿水文补勘工程中的一项重要任务,目前矿井涌水量预测主要以“大井法”、“集水廊道法”为主,计算过程往往简单、机械,不注重矿区水文地质条件及公式适用条件的分析。本文在分析花草滩煤矿地质及水文地质条件的基础上,对研究区水文地质条件进行了概化,最终选用具有一个隔水边界的稳定流承压转无压的Dupuit公式的推导式进行基岩段涌水量计算。

The calculation of mine water inflow is an important task in the mine hydrological supplementary exploration project.At present,the mine water inflow prediction is mainly based on"big well method"and"water collecting Gallery method",the calculation process is often simple and mechanical,and the analysis of hydrogeological conditions and applicable conditions of the formula is not paid attention to.Based on the analysis of the geological and hydrogeological conditions of huacaotan coal mine,this paper generalizes the hydrogeological conditions of the study area,and finally selects the deducing formula of Dupuit formula of steady flow pressure to non pressure with a water resisting boundary to calculate the water inflow of bedrock section.