目标规划在矿山地下水疏放管理中应用——以淮南潘北煤矿西翼采区为例

Goal Programming Application in Dewatering Management in Mine——a Case Study of the West Wing Mining Area of Panbei Coal Mine,Huainan,Anhui

长期以来,由于矿山地下水疏放工作缺乏科学的规划和管理,造成地下水资源大量浪费并引发了一系列环境地质问题。目前,解决矿山采煤"疏水和保水"矛盾的最有效方法,就是对地下水资源的疏放进行合理优化和分配。为此,本文采用最优化方法,以安徽淮南潘北煤矿西翼采区为研究对象,在分析水文地质条件和构建水文地质模拟模型基础上,建立了以水位和疏放量为约束条件,以最小疏放量为目标函数的目标规划管理模型。根据模型的最优解,对区内疏放水钻孔进行了重新分配和布置,使得A煤层的开采时间由22年后缩短为5年之内,地下水疏放量由2.31×107m3减少为1.19×10~7m^3,并经现场实际验证,该模型是正确、可行的。这将为今后类似条件下的矿山疏放水工作提供一定的借鉴作用。

In the past,groundwater dewatering in mines lacked of scientific planning and management. This practice,however,has caused a great deal of groundwater resources wasted and a series of environmental geological problems occurred.The most effective solution to solve the conflict between groundwater drainage and conservation,is to optimize and distribute groundwater resources reasonably. Therefore,in this paper,taking the west wing mining area of Panbei Coal Mine in Huainan City as the research object,a goal programming management model is established by the optimization method, which based on the analysis of hydro-geological conditions and the construction of hydro-geological simulation models. The goal programming management model takes water level and dewatering volume as constraint conditions,and takes the minimum dewatering volume as the objective function.According to the optimal solution of the model,the drainage boreholes were redistributed and arranged in the studyarea. As a result,the mining time of coal seam A group in this area is shortened from 22 years to 5 years,and the total volume of required groundwater dewatering is decreased from 23126400 m3 to 11942486 m3. The model proved to be correct and feasible by field practice. The method can also provide some guidance for groundwater drainage of mines which has similar conditions