榆神矿区直罗组砂岩含水层保护与水害防治研究  

Sandstone aquifer protection and water damage prevention in the Zhiluo formation of Yushen mining area

作　　者：吕扬 秦天天 任帅峰 王嗣桐 郑静 LYU Yang;QIN Tiantian;REN Shuaifeng;WANG Sitong;ZHENG Jing(Shaanxi Shanmei Caojiatan Mining Co.,Ltd.,Yulin 719000,China;School of Mines,China University of Mining and Technology,Xuzhou 221116,China;Yushen Coal Power Co.,Ltd.,Shaanxi Yulin Energy Group,Yulin 719000,China)

机构地区：[1]陕西陕煤曹家滩矿业有限公司,陕西榆林719000 [2]中国矿业大学矿业工程学院,江苏徐州221116 [3]陕西榆林能源集团榆神煤电有限公司,陕西榆林719000

出　　处：《陕西煤炭》2025年第4期61-66,共6页Shaanxi Coal

基　　金：陕西秦创原“科学家+工程师”创新团队建设项目(2024QCY-KXJ-055);陕西煤业股份公司科技创新计划项目(2023SMHKJ-B-J-88)。

摘　　要：榆神矿区一、三、四期规划区开采煤层的埋藏深度逐渐增大,随着向西部开发,煤层防治水的重点由浅部的萨拉乌苏组水害为主,转变为以直罗组砂岩含水层水害为主。前期研究发现,直罗组含水层分布面积广阔,厚度8.90~190.05 m,平均厚90 m,分段性明显,在下段为中粗粒砂岩为主,孔隙、裂隙发育,地下水流畅通,富水性中等到弱,局部地段富水性较强。以曹家滩煤矿主采煤层2^(-2)煤层为研究对象,研究发现,在采动条件下导水裂隙可发育至直罗组,裂隙迅速连通,导致直罗组砂岩含水层是矿井涌水最直接的来源。未来对榆神矿区直罗组砂岩物性特征及演化机理应进行进一步研究,为榆神矿区防治水和直罗组地下水资源利用提供一些思路和方法,以促进生态脆弱区水资源保护利用。The burial depth of mining coal seams in Yushen mining area’s phase I,III and IV planning area is gradually increasing,and with the development to the west,the focus of coal seam water prevention and control is changed from the shallow Sala Wusu Group water damage to the sandstone aquifer of Zhiluo Group water damage.Previous research found that the distribution area of Zhiluo group aquifer is wide,with thickness 8.90~190.05 m,average thickness 90 m,and obvious segmentation.In the lower section,the medium-coarse grained sandstone is dominant,with developed pore and fissure,fluent groundwater flow,water-rich nature of medium to weak,and the stronger water-rich nature of local section.We take the main coal seam 2^(-2) of Caojiatan Coal Mine as the research object,and it is found that the water-conducting fissures can be developed to the Zhiluo Group under the conditions of mining,and the fissures are connected rapidly,which leads to the sandstone aquifer of Zhiluo Group being the most direct source of water influx in the mine.In the future,the physical characteristics and evolution mechanism of sandstone of Zhiluo Group in Yushen mining area should be further studied to provide some ideas and methods for the prevention and treatment of water in Yushen mining area and the utilization of groundwater resources in Zhiluo Group,so as to promote the protection and utilization of water resources in ecologically fragile areas.

关 键 词：直罗组 古河道 水资源保护(保水采煤) 防治水 榆神矿区 

分 类 号：TD745[矿业工程—矿井通风与安全]