矿井奥灰疏降水量数值法预测和应用

Application of numerical method in the prediction of Ordovician limestone water discharge

北阳庄矿井地质、水文条件复杂,首采区存在多处奥灰隆起带和隔水层变薄区,煤炭资源开采受奥灰水害威胁,解决矿井安全开采的根本出路在于疏水降压。数值模拟方法是目前水文地质计算中一种功能强大的数学工具,采用数值模拟方法对北阳庄矿井奥灰疏降水量预测,为疏水降压工程提供理论依据。

The geological and hydrological conditions of Beiyangzhuang coal mine is complicated. There were many Ordovician limestone uplift zones and thin water-resistant layer in the primary mining face. The water made a serious impact on the coal mining. The best way to solve this problem was to relieve the water pressure. Numerical simulation method is a functional mathematics tool which widely uses in hydrological calculation. The numerical simulation method was used to predict Ordovician water discharge of Beiyangzhuang coal mine. The results can provide theoretical basis for the water-discharge engineering.