弱胶结顶板复合水害防治技术研究及应用  

Research and application of compound water disaster prevention and control technology for weakly cemented roof

作　　者：杨建强 黄保忠 鹿存金 李满好 YANG Jian-qiang;HUANG Bao-zhong;LU Cun-jin;LI Man-hao(Ningxia Yinxing Coal Industry Co.,Ltd.,Yinchuan 750000,China;School of Resources and Geosciences,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]宁夏银星煤业有限公司,宁夏银川750000 [2]中国矿业大学资源与地球科学学院,江苏徐州221116

出　　处：《煤炭科技》2023年第6期141-147,152,共8页Coal Science & Technology Magazine

基　　金：国家自然科学基金面上项目(52274243);中央高校基本科研业务费专项资金资助(2024QN11025)。

摘　　要：西部侏罗系煤田顶板岩层受沉积条件的影响表现出明显的弱胶结特征,针对宁东煤田银星一号煤矿存在的弱胶结顶板复合水害问题,在梳理矿井水文地质条件的基础上,分析了矿井的主要充水水源,研究了顶板岩层的弱胶结特征及水害类型,提出了针对性的水害防治技术并进行了成功应用。结果表明,顶板弱胶结覆岩在地下水渗流作用下砂泥化是造成矿井水害防治工作困难的主要影响因素,采掘期间面临地表水、松散层与风氧化带水、砂岩孔隙裂隙含水层水、采空区积水、断层水以及可能的离层水等复合水害的威胁,结合水害特点及防治重点提出的综合运用“探、防、疏、监”等措施进行单种或多种手段相结合的治水方式对于弱胶结顶板复合水害治理是可行的。The roof strata of the Jurassic coalfield in the western part showed obvious weakly cemented characteristics due to the influence of sedimentary conditions.In view of the problem of weakly cemented roof compound water disaster in Yinxing No.1 Coal Mine of Ningdong coalfield,on the basis of combing the hydrogeological conditions of the mine,the main water filling sources of the mine were analyzed,the weakly cemented characteristics and water disaster types of the roof strata were studied,and the targeted water disaster prevention and control technology was proposed and successfully applied.The results showed that the sandy argillization of weakly cemented overlying strata under the action of groundwater seepage was the main influencing factor for the difficulty of mine water disaster prevention and control.During the mining period,it was faced with the threat of compound water disasters such as surface water,loose layer and wind oxidation zone water,sandstone pore fissure aquifer water,goaf water,fault water and possible bed separation water.Combined with the characteristics of water disasters and the key points of prevention and control,it was feasible to comprehensively use the measures of exploration,prevention,dredging and supervision to carry out single or multiple means of water control for the treatment of weakly cemented roof compound water disasters.

关 键 词：弱胶结 顶板 复合水害 防治技术 

分 类 号：TD745[矿业工程—矿井通风与安全]