鄂尔多斯盆地南部矿区涌水量特征及动态预测方法

Characteristics and Dynamic Prediction Method of Mine Inflow in Southern Mining Areas of Ordos Basin

鄂尔多斯盆地南部煤矿区矿井涌水量呈现出“阶梯型”增大的特征,预测难度大。为准确预测工作面涌水量,在工作面涌水量特征及矿井涌水机理分析的基础上,对矿井涌水量影响因素进行了分析,采用动态比拟法,建立了涌水量动态比拟预测模型,对相似开采条件的工作面涌水量进行了动态预测,并与实际涌水量进行对比。研究发现:基于矿井涌水特征的动态预测方法,预测效果好,为复杂条件下工作面涌水量的精准预测提供了参考依据。

The mine inflow of coal mines in the southern coal mining area of the Ordos Basin shows a“stepped”increase,making prediction difficult.In order to accurately predict the mine inflow of the working face,based on the analysis of the characteristics of the mine inflow of the working face and the mechanism of the mine inflow,the influencing factors of mine inflow were analyzed.A dynamic comparison prediction model for the mine inflow was established using the dynamic comparison method.The mine inflow of the working face under similar mining conditions was dynamically predicted and compared with the actual mine inflow.It was found that the dynamic prediction method based on the characteristics of mine inflow has good prediction results,providing a basis for accurate prediction of mine inflow in working faces under complex conditions.