浅埋煤层矿井涌水量预测——以山西下梨园煤矿为例

摘要

The mine water inflow refers to the amount of water flowing into the mine during unit time in the process of mining.It is one of the important technical conditions for coal mine development.It is of great significance for economic evaluation of a coal property,the design and formulation of plans for mining,the determination of water control measures and for the protecting of safety production.The accuracy of prediction of mine water inflow depends on the correct analysis and prediction method of mine water filling condition and reasonable application of parameters.At present,there are many methods used to predict the water inflow of mine,including big well method,unsteady flow fix-drawdown method,analogy method of hydrogeology and numerical simulation,etc..In this paper,Xialiyuan coal mine is taken as an example to predict mine water inflow by various methods,in order to provide the important parameters for design its drainage system.%矿井涌水量是煤矿开发的重要技术条件之一,对煤田进行经济评估、设计和制定采掘方案、确定防治水措施以保障煤矿安全生产具有重大意义.矿井涌水量预测的精度取决于矿井充水条件的正确分析及预测方法、参数的合理应用.目前用来预测矿井涌水量的方法较多,包括大井法、非稳定流定降深井流法、水文地质比拟法、数值模拟法等.本文以下梨园煤矿为例,运用多种方法预测了矿井涌水量,为下梨园煤矿防排水系统设计提供了重要参数.