采煤对官庄矿区泉水流量的影响研究  

Study on the Influence of Coal Mining on Spring Water Flow in Guanzhuang Mining Area

作　　者：段鹏飞 DUAN Peng-fei(Resources of and Environment Survey Institute of Shanxi Coal Ge�ology Bureau,Taiyuan Shanxi 030006,China)

机构地区：[1]山西省煤炭地质资源环境调查院

出　　处：《西部探矿工程》2020年第2期95-97,101,共4页West-China Exploration Engineering

基　　金：山西省重点煤矿采煤沉陷区矿山地质环境专项调查项目(SZ20161019)

摘　　要：二叠系砂岩裂隙水对于多煤贫水的山西来说,具有重要的供水价值和生态意义。基于此,以官庄矿为例,采用导水裂隙带高度计算以及现场调查验证的方法来研究采矿活动对泉水流量的影响机理,采用取样测试、统计分析的方法对泉水污染情况进行分析评价。结果表明:2号、3号煤层开采后,导水裂隙发育高度能达到K6、K7砂岩裂隙含水层,对含水层具有疏干作用,使泉水流量下降;6号、8号、9号煤层开采后,采空冒落形成的裂隙会导通其上覆各含水层,加快了对地下水的疏干作用,对含水层结构影响严重。建议在今后煤层开采中对泉水流量有影响区域采用限制采高法或分层法开采,在煤层浅埋区建议采用煤矸石充填法开采。Fracture water in Permian sandstone has important water supply value and ecological significance for Shanxi Province,which is rich in coal and poor in water.Based on this,taking Guanzhuang Coal Mine as an example,by using the method of calculating the height of water conduction fracture zone and field investigation and verification this paper studies the influence mechanism of mining activities on spring water flow,and uses sampling test and statistical analysis to analyze and evaluate the pollution situation of spring water.The results show that after mining in seams No.2 and No.3,the height of water-conducting fractures can reach K6 and K7 sandstone fissure aquifers,which can drain the aquifers and decrease the spring water flow.After mining in seams No.6,No.8 and No.9,the fissures formed by goaf caving will lead to the overlying aquifers,accelerate the drainage of groundwater and seriously affect the aquifer structure.It is suggested that the limited mining height method or slicing method should be adopted in the areas where the spring water flow will be affected in the future coal seam mining,and the gangue filling method should be adopted in the shallow coal seam mining area.

关 键 词：采煤活动 泉水流量 导水裂隙 影响机理 

分 类 号：P641.3[天文地球—地质矿产勘探]