LI Bo, WEI Tao, LIU Zijie. Construction of evaluation index system for water abundance of karst aquifers and risk assessment of water inrush on coal seam roof in Southwest China[J]. Journal of China Coal Society, 2022, 47(S1): 152-159.
Citation: LI Bo, WEI Tao, LIU Zijie. Construction of evaluation index system for water abundance of karst aquifers and risk assessment of water inrush on coal seam roof in Southwest China[J]. Journal of China Coal Society, 2022, 47(S1): 152-159.

Construction of evaluation index system for water abundance of karst aquifers and risk assessment of water inrush on coal seam roof in Southwest China

More Information
  • Available Online: April 09, 2023
  • Published Date: June 27, 2022
  • Southwestern China is the largest contiguous bare carbonate distribution area in the world. Due to long⁃term karst process in this area,many forms of karst such as karst caves,depressions,sinkholes and disappearing streams are widely distributed in the carbonate strata of Wujiaping formation,Changxing Formation and Yulongshan section of Yelang formation on Permian coal seam roof. The water abundance of karst aquifers above coal seam roof has its own features such as spatial heterogeneity and anisotropy. During the process of coal mining,once the water⁃flowing fractured zone reaches the area of abundant water,it is easy to cause water inrush disasters. According to the occur⁃ rence characteristics of karst groundwater in Southwest China and based on the effects of factors on the water abun⁃ dance of aquifers, 12 evaluation indexes were determined from five aspects in this study, which are the degree of karst development,the lithology association of aquifers,geological structures,the hydrogeological parameters of aqui⁃ fers,and topography and landform. A comprehensive evaluation index system for the water abundance of karst aquifers above coal seam roof in southwest China was established. On the basis of this,an evaluation model of water abundance of karst aquifers above coal seam roof was constructed based on GIS and network analytic hierarchy process (ANP), and the subdivision of water abundance of karst aquifers above coal seam roof of a typical coal mine was achieved. Be⁃ sides,according to the spatial distribution differences of mining thickness,mining depth and lithologic combination,a figure of calculation of subdivision of water⁃flowing fractured zone was made. By carrying out the numerical simula⁃ tion calculation of coal seam mining process under different geological conditions,the calculation results of the heights of water⁃flowing fractured zone in different subdivisions in the typical coal mine were obtained. The possibility of water inrush can be assessed by comparing the height of water⁃flowing fractured zone with the floor elevation of target aquifer. Specifically,when the water flowing fractured zone reaches the aquifer,the risk of water inrush can be deter⁃ mined according to the water abundance of the aquifer. Based on this principle,the risk of water inrush at coal seam roof of typical coal mine was subdivided and evaluated,and the accuracy of the evaluation results was verified by com⁃ bining with previous water inrush cases. The evaluation method of water abundance of karst aquifers and risk of water inrush at coal seam roof in southwest China proposed in this study can provide certain reference for the research in the related fields.
  • Cited by

    Periodical cited type(15)

    1. 蒋莎莎. 晋华宫煤矿在煤矿地质防治水中的技术研究. 煤矿现代化. 2025(01): 107-111 .
    2. 刘成林. 黄陵煤矿水文地质特征及水害防治措施. 陕西煤炭. 2025(02): 109-114 .
    3. 谢俊,陈登金,崔志刚,王红伟,王鹏威,韩冰,张志伟. 基于GIS和AHP结合的寺家庄煤矿15号煤顶板突水危险性评价. 煤. 2025(02): 44-47 .
    4. 李金龙,武伟,汪太溢,段霄鹏,初欣雨. 多含水层体系下基坑支护施工技术研究. 粉煤灰综合利用. 2025(01): 60-64 .
    5. 姜伯洋,齐艺裴,张嘉勇,郭立稳,李嘉,肖洋. 基于灰色关联分析法的单喷嘴喷雾特性研究. 煤矿安全. 2025(03): 93-104 .
    6. 杨飞,尚学勇,袁梦丽. 煤矿砂岩水文地质特征及含水层突水危险性评价分析. 煤炭技术. 2024(03): 198-202 .
    7. 曹虎生,王世坤,王力,韩佳伟,倪柯强. 红柳林煤矿中西部区域煤层顶板突水危险性评价. 陕西煤炭. 2024(05): 61-66 .
    8. 王孝坤,郑禄林,兰红,谢红东,田友稳,胥进. 基于LDA-RBF及综合赋权法的顶板突水危险性评价. 煤矿安全. 2024(04): 187-196 .
    9. 曾一凡,朱慧聪,武强,王皓,郭小铭,崔芳鹏,庞振忠,刘守强,杨维弘. 我国不同类别煤层顶板水害致灾机理与防控路径. 煤炭学报. 2024(03): 1539-1555 . 本站查看
    10. 王勇,金德洋,王一,李泽京,单梦瑶,王熊玉. 基于EW-FAHP-GIS耦合的煤层顶板富水性评价. 煤炭与化工. 2024(07): 48-52 .
    11. 田友稳,王孝坤,任维德,赵禹. 岩溶含水层下采煤工作面富水性探查技术研究. 内蒙古煤炭经济. 2024(13): 169-171 .
    12. 莘星,雷媛媛,李建锋,石逊. 邯邢式大水铁矿突水风险评价方法研究——以白涧铁矿为例. 矿产勘查. 2024(10): 1937-1946 .
    13. 胡东祥,田波,吕祥海,吕文茂,任昱颖. 基于距离函数组合赋权—云模型的含水层富水性评价. 矿业安全与环保. 2024(06): 147-153+160 .
    14. 崔俊超,平宇,郝建卿,任君豪,孟建勇,王心义. 基于区间变权和未知测度理论的煤层底板突水危险性评价. 地下水. 2023(05): 1-6+25 .
    15. 周存柳,康向涛,胡锦国. 岩溶影响下近距离煤层采动覆岩运移及裂隙演化规律研究. 矿业研究与开发. 2023(12): 86-93 .

    Other cited types(9)

Catalog

    Article views (91) PDF downloads (491) Cited by(24)
    Turn off MathJax
    Article Contents

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return