岩溶山区倾斜煤层开采条件含水层再造方法研究  

Study on aquifer reconstruction methods under inclined coal seam mining conditions in karst mountain areas

作　　者：陈正华[1,2] 姚光华[2,3] 唐清敏 

机构地区：[1]重庆地质矿产研究院外生成矿与矿山环境重庆市重点实验室,重庆400042 [2]煤炭资源与安全开采国家重点实验室重庆研究中心,重庆400042 [3]成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059

出　　处：《中国矿业》2016年第4期98-102,共5页China Mining Magazine

基　　金：重庆市国土资源和房屋管理局2014年第一批科技计划项目"丘陵山区煤层采动条件下地下水疏降及汇集规律研究"资助(编号:CQGT-KJ-2014019);国土资源部公益性行业专项科研经费项目"岩溶矿区地下水分层监测技术集成与应用示范"资助(编号:201411083-6)

摘　　要：本文针对矿区主要含水层特征分析,确定重点保护T1j含水层,其次为P3c含水层,提出了采用封闭不良钻孔重新启封段注浆和离层裂隙带压力注浆两种含水层再造方法修复含水层,着重分析了最优压力注浆的层位在位于拉伸区T1f7隔水层,其次是P3l/P3c浅层离层裂缝带,最后划分了含水层再造的有利区位,为岩溶山区煤矿水害防治和地下水资源优化利用提供理论依据。According to characteristics analysis of main aquifer in mining area,we determine Tlj aquifer is of significance for the protection, followed by P3 c aquifer. Two reconstruction methods for aquifer,which are sealing poor boreholes and grouting to unsealed section, pressure grouting in separated strata fracture zone, are proposed in this paper. Also, we analyze and conclude that the optimal pressure grouting horizon is Ta f7 aquifuge in the tensile zone, followed by P31/P3 c separation cracks in separated strata fracture zone. Finally favorable location for aquifer reconstruction is classified, which provides the theory basis to prevent water disaster in karst mountain coal mine and optimize the utilization of groundwater resources.

关 键 词：岩溶山区 倾斜煤层 含水层再造方法 再造有利区域 

分 类 号：P641.4[天文地球—地质矿产勘探]