哈尔乌素露天煤矿涌水量预测及防排水方案  

Prediction of water inflow and waterproof and drainage scheme in Ha'erwusu Open-pit Coal Mine

作　　者：乔龙 QIAO Long(China Energy Group Zhunge’er Energy Co.,Ltd.,Ordos 010300,China)

机构地区：[1]国能准能集团有限责任公司,内蒙古鄂尔多斯010300

出　　处：《露天采矿技术》2024年第6期83-86,共4页Opencast Mining Technology

摘　　要：为了确定哈尔乌素露天煤矿的防排水方案,分别采用数值模拟法和大井法预测了哈尔乌素露天煤矿矿区地下水涌水量,并对比了两者的预测结果,结合降雨影响提出了防排水方案。结果表明:S1钻孔和S2钻孔的地下水模拟水位与实测水位数据基本相符,通过数值模拟得出的矿山涌水量为95.67 m^(3)/d,采用大井法得出矿山涌水量为91.02 m^(3)/d;根据“就高不就低”的原则确定的矿山正常涌水量为95.67m^(3)/d,矿区最大涌水量为143.51 m^(3)/d;在正常降雨时排水可依靠蒸发、生产用水和洒水车作业,在暴雨期排水可依靠采煤工作面积水坑内的排水设备及管路将各处的汇水排入南坪沟。In order to determine the waterproofing and drainage plan of Ha'erwusu Open-pit Coal Mine,numerical simulation method and large well method were respectively used to predict the groundwater inflow in Ha'erwusu Open-pit Coal Mine and compared the prediction results of both.A drainage plan was proposed in combination with the impact of rainfall.The results show that the simulated water levels of borehole S1 and borehole S2 are generally consistent with the measured water levels.By numerical simulation,the water inflow rate of the mine is determined to be 95.67 m^(3)/d,while using the large well method results in a water inflow rate of 91.02 m^(3)/d.Based on the principle of"higher rather than lower,"the normal water inflow rate of the mine is determined to be 95.67m^(3)/d,with the maximum water inflow rate in the mining area reaching 143.51 m^(3)/d.During normal rainfall,the drainage depends on evaporation,production water and sprinkler operation.And during rainstorm drainage,the drainage equipment and pipelines in the water pit of the coal mining area are used to drain the catchment water into Nanping Ditch.

关 键 词：含水层 大井法 数值模拟 涌水量 防排水 

分 类 号：TD824.6[矿业工程—煤矿开采]