陕北榆神矿区煤层开采顶板涌水规律分析

赵春虎, 靳德武, 李智学, 申小龙, 王皓, 王世东, 许峰, 王强民

赵春虎, 靳德武, 李智学, 等. 陕北榆神矿区煤层开采顶板涌水规律分析[J]. 煤炭学报, 2021, 46(2): 523-533.
引用本文: 赵春虎, 靳德武, 李智学, 等. 陕北榆神矿区煤层开采顶板涌水规律分析[J]. 煤炭学报, 2021, 46(2): 523-533.
ZHAO Chunhu, JIN Dewu, LI Zhixue, et al. Analysis of overlying aquifer water inrush above mining seam in Yushen Mining area[J]. Journal of China Coal Society, 2021, 46(2): 523-533.
Citation: ZHAO Chunhu, JIN Dewu, LI Zhixue, et al. Analysis of overlying aquifer water inrush above mining seam in Yushen Mining area[J]. Journal of China Coal Society, 2021, 46(2): 523-533.

陕北榆神矿区煤层开采顶板涌水规律分析

Analysis of overlying aquifer water inrush above mining seam in Yushen Mining area

  • 摘要: 榆神矿区是我国陕北煤炭基地的重要组成部分,针对榆神矿区煤层开采顶板覆岩含水层涌水规律研究不足等问题,通过系统分析地质与水文地质结构特征,将矿区开采煤层覆岩划分为松散孔隙、基岩与风化裂隙、烧变岩孔洞裂隙4个含水层组,以及主、亚2个隔水保护层组;根据煤层采动导水裂隙与覆岩含(隔)水层组不同组合关系下的含水层涌水特征,提出了浅埋煤层侧向直接涌水、中深煤层侧向与垂向复合涌水,以及深埋煤层侧向涌水与垂向弱涌水3种含水层涌水模式;并采用数值分析方法,以榆神矿区典型矿井为研究对象,构建了采煤工作面尺度上煤层开采3种模式涌水分析模型,模拟结果显示,浅埋煤层侧向直接涌水型(凉水井井田),主采煤层为4-2煤层,采动导水裂隙直接发育至松散含水层,工作面顶部含水层被疏干,总涌水量为47 m3/h,地下水流场受采动影响大;深埋煤层侧向涌水与垂向微涌水型(小壕兔1号井田),主采煤层为1-2煤层,采动导水裂隙发育至基岩含水层,总涌水量为21.87 m3/h,以侧向涌水为主,由于主、亚隔水层复合保护,垂向涌水微弱;中深煤层侧向与垂向复合涌水型(曹家滩井田),主采煤层为2-2煤层(均厚约为11 m),在分层开采条件下导水裂隙发育至基岩含水层内部,其侧向涌水量为23.17 m3/h,垂向涌水量为12.67 m3/h,地表松散含水层地下水流场变化较小,在一次采全高条件下导水裂隙突破亚隔水层,发育至风化基岩含水层底部,总涌水量增至131 m3/h,对松散含水层影响较大。此外,当导水裂隙带高度小于180 m、不能沟通风化基岩含水层时,随导水裂隙带高度增加涌水量增加幅度不大,当导水裂隙带高度大于180 m、导水裂隙揭露富水性较好的风化基岩含水层时,涌水量增加幅度较大,由此可见,抑制导水裂隙发育高度与覆岩强含水层的接触关系,是控制煤层覆岩涌水的一项重要措施。
    Abstract: Yushen mining area is an important part of the coal base in Northern Shaanxi.Aiming at the problems of insufficient research on water inrush of aquifer above the coal seam being mined in Yushen mining area,the overlying strata of the coal seam being mined is divided into four aquifer groups:loose pore,bedrock and weathering fissure,cave fissure aquifer in burnt rock,as well as the main and sub 2 water proof soil layers according to the typical geological and hydrogeological structure characteristics of the mining area,Three types of aquifer water inrush modes are proposed and named as “shallow lateral direct water inrush mode”,“medium deep lateral and vertical combined water inrush mode” and “deep buried lateral and vertical weak water inrush mode” respectively according to the water inrush characteristics of aquifers under different combinations of water conducting fissure zone and aquifer groups.The water inrush analysis models of three coal mining modes on the scale of coal mining face are constructed,which shows that under the lateral direct loss type of shallow seam condition (Liangshuijing coal mine),the main mineable coal seam is No.4-2,because of the water conducting fissures directly develop to loose aquifers,the top aquifer of the mining face is dried,the total water inrush is 47 m3/h,and the mining effect on groundwater flow field is significant.In the deep buried composite water proof protection micro loss type (Xiaohaotu No.1 coal mine),the main mineable coal seam is No.1-2,the total loss of water in the aquifer is 21.87 m3/h,it is mainly in the form of lateral water inrush,although the water conducting fissures develop into bedrock aquifers,the groundwater flow of the loose pore aquifer is basically unchanged under the protection of main and sub soil layers.In the medium deep lateral and vertical composite water inrush type (Caojiatan coal mine),the main mineable coal seam is No.2-2,and the average thickness of No.2-2 coal seam is about 11 m,water conducting fissures develop to the interior of bedrock aquifer under the condition of stratified mining of coal seam which leads to a lateral water inrush of aquifer with 23.17 m3/h and a vertical water inrush with 12.67 m3/h,the groundwater flow of loose aquifer changes little.The total water inrush increases to 131 m3/h which has a great influence on the loose aquifers when the water conducting fissures break through the sub aquifer and develop to the bottom of the weathered bedrock aquifer under the condition of full mining height.In addition,the total amount of water inrush increases slightly with the increase of the height of the water conducting fissures when the height of water conducting fissure zone is less than 180 m and does not extend to the weathered bedrock aquifer.However,the water conducting fissures expose weathered bedrock aquifers with better water rich when the height of the water conducting fissures is greater than 180 m,which leads to a larger increase in the water inrush of aquifers.It can be seen that it is an important measure to control the water inrush by restraining the contact relationship between the height of water conducting fracture and the overburden aquifer with significant water yield.The research results of this paper provide a scientific basis for the prevention and control of roof water disaster and the coordinated protection of water resources in the arid and semi arid mining areas of Western China.
  • 期刊类型引用(21)

    1. 周振方. 煤层顶板含水层疏放水井孔工程优化解析模型推导及应用. 煤矿安全. 2025(03): 188-196 . 百度学术
    2. 赵春虎,王世东,姬中奎,朱开鹏,梁向阳. 榆神矿区中深煤层开采松散含水层地下连续墙侧向截水帷幕可行性分析. 煤炭学报. 2025(02): 1062-1072 . 本站查看
    3. 杨建,李慧. 蒙陕接壤区煤炭开采过程中矿井水来源. 煤炭学报. 2025(02): 1263-1275 . 本站查看
    4. 史文豹,苗壮,袁本庆,许庆钊,刘鹏,闫澳运. 含水层下伏近距离工作面安全回采控制技术及应用. 中国煤炭. 2025(04): 36-45 . 百度学术
    5. 许峰,黄欢,靳德武,王世东,党亚堃. 鄂尔多斯盆地北部安定组地层隔水性能试验分析. 矿业安全与环保. 2025(02): 128-135 . 百度学术
    6. 宋业杰,鞠文君,张玉军,华照来,尹希文,胡皓宇,刘前进. 超大采高综采新近系红土层采动隔水性监测及响应特征. 煤炭学报. 2025(04): 2005-2019 . 本站查看
    7. 马俊鹏,赵春虎,胡东祥,孟凡贞,姬中奎,吕文茂,朱开鹏. 榆神矿区中深部煤层开采顶板涌水模式分析. 干旱区资源与环境. 2024(03): 104-111 . 百度学术
    8. 董书宁,樊敏,郭小铭,刘英锋,郭康,姬中奎,李超峰,薛小渊. 陕西省煤矿典型水灾隐患特征及治理技术. 煤炭学报. 2024(02): 902-916 . 本站查看
    9. 高兴斌,张加加,杨康,贺伟,史志华,陈梁,白如鸿,孙强. 基于地质概化的坚硬厚基岩覆岩裂隙场演变特征研究. 煤矿安全. 2024(05): 151-159 . 百度学术
    10. 赵春虎,王世东,靳德武,张培元,朱开鹏,姬中奎,许峰. 陕北与神东煤炭基地煤矿开采对地下水资源影响研究现状与评价方法. 绿色矿山. 2024(02): 150-159 . 百度学术
    11. 周振方,董书宁,董阳,罗生虎,薛建坤,王治宙,王淑璇,尚宏波,王甜甜,王昱同,王同. 蒙陕接壤区典型煤层开采顶板周期性变形破坏及涌水响应特征. 煤田地质与勘探. 2024(08): 101-110 . 百度学术
    12. 王锐,丁维波,任建超,程磊,高卫卫. 榆神矿区浅埋煤层矩形巷道围岩应力应变场及支护参数研究. 能源与环保. 2024(08): 260-267 . 百度学术
    13. 辛建帝,张博龙,李治龙,武义强. 动、静结合法在矿井涌水量中的应用. 中国煤炭地质. 2024(10): 52-57+21 . 百度学术
    14. 宋世杰,孙涛,郑贝贝,牛瑞琳,阮豪,成星. 陕北黄土沟壑区采煤沉陷对黄土坡面形态的影响及土壤侵蚀效应. 煤炭科学技术. 2023(02): 422-435 . 百度学术
    15. 赵春虎,王世东,姬中奎,朱开鹏,杨建,许峰,蔚波. 蒙陕矿区深部煤层开采顶板含水层失水特征与钻孔注水帷幕保护分析. 煤田地质与勘探. 2023(05): 88-98 . 百度学术
    16. 王皓,周振方,杨建,赵春虎,曹煜,冯龙飞,尚宏波,王甜甜,王昱同,薛建坤. 蒙陕接壤区典型煤层开采地下水系统扰动的定量表征. 煤炭科学技术. 2023(07): 83-93 . 百度学术
    17. 谢晓深,侯恩科,王双明,赵兵朝,龙天文,冯栋,侯鹏飞,张琦. 黄河中游榆神府矿区采动含水层失水模式及保护技术. 煤炭科学技术. 2023(12): 197-207 . 百度学术
    18. 王永平,张铭睿,袁向荣. 榆神矿区顶板水井下钻孔疏干降压技术研究. 煤炭工程. 2023(S1): 54-59 . 百度学术
    19. 许峰,靳德武,杨茂林,王世东,黄欢,党亚堃. 神府-东胜矿区高强度开采顶板涌水特征及防治技术. 煤田地质与勘探. 2022(02): 72-80 . 百度学术
    20. 许峰,靳德武,高振宇,何渊,王世东,石磊,黄欢,段建华. 煤炭高强度重复采动下地下水资源漏失规律研究. 煤炭科学技术. 2022(11): 131-139 . 百度学术
    21. 靳德武,刘基,许峰,王振荣,庞乃勇. 榆神矿区浅埋煤层减水开采中预疏放标准确定方法. 煤炭学报. 2021(01): 220-229 . 本站查看

    其他类型引用(8)

图(7)
计量
  • 文章访问数:  854
  • HTML全文浏览量:  4
  • PDF下载量:  587
  • 被引次数: 29
出版历程
  • 网络出版日期:  2023-04-09
  • 发布日期:  2021-02-27

目录

    /

    返回文章
    返回