基于“三图法”的纳林河二号矿井顶板突水危险性评价  

Risk assessment of roof water inrush in Nalinhe No.2 Mine based on"Three Maps Method"

作　　者：阎宏图 靳立创 郭森林 李源 李沛涛[2,3] 莫菲 Yan Hongtu;Jin Lichuang;Guo Senlin;Li Yuan;Li Peitao;Mo Fei(Wushen County Mengda Mining Industry Co.,Ltd.,Wushen County 017300,China;National Coal Mine Water Hazard Prevention Engineering Technology Research Center,China University of Mining and Technology(Beijing),Beijing 100083,China;Inner Mongolia Research Institute,China University of Mining and Technology(Beijing),Ordos 017000,China;China Coal Northwest Energy and Chemical Group Co.,Ltd.,Ordos 017200,China)

机构地区：[1]乌审旗蒙大矿业有限责任公司,内蒙古乌审旗017300 [2]中国矿业大学(北京)国家煤矿水害防治工程技术研究中心,北京100083 [3]中国矿业大学(北京)内蒙古研究院,内蒙古鄂尔多斯017000 [4]中煤西北能源化工集团有限公司,内蒙古鄂尔多斯017200

出　　处：《能源与环保》2024年第4期44-50,共7页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家自然科学基金资助项目(42027801);内蒙古自治区科技重大专项资助项目(2020ZD0020-4);大学生创新计划资助项目(202202011)。

摘　　要：我国西北地区侏罗系煤田普遍受到顶板水害的威胁,影响矿山安全生产。以纳林河二号矿井3^(-1上)103工作面为例,提供一种有效的顶板水害评估方法。通过建立水文地质剖面并应用“三图法”理论,分析了影响煤层顶板砂岩含水层富水性的主控因素,包括砂岩含水层厚度、渗透系数、脆塑性岩厚度比和岩心采取率。运用层次分析法(AHP)对主控因素的权重进行了科学定量,基于富水性指数评估了含水层富水性,并获得了顶板冒裂安全性及突水危险性。通过与音频电透视技术获取的低阻异常区对比,初步验证了所提方法的可靠性。研究结果为纳林河二号矿井3^(-1上)103工作面安全回采提供依据,对于指导类似地区的顶板水害预防和控制具有参考价值。The Jurassic Coalfield in northwest China are generally threatened by roof water hazard,which affects the safety of mining production.This article took the 3^(-1 upper)103 working face of Nalinhe No.2 Mine as an example,aiming to provide an effective method for evaluating roof water hazard.By establishing a hydrogeological profile and applying the"Three Maps Method"theory,the main controlling factors affecting the water abundance of the sandstone aquifer in the coal seam roof were analyzed,including the thickness of the sandstone aquifer,permeability coefficient,thickness ratio of brittle plastic rock,and core recovery rate.The analytical hierarchy process(AHP)was used to scientifically quantify the weights of the main control factors,and the water abundance of the aquifer was evaluated based on the water abundance index,and the safety of roof cracking and the risk of water inrush were obtained.The reliability of the proposed method was preliminarily verified by comparing it with the low resistance abnormal areas obtained by the audio electric perspective technology.The research results provide a basis for the safe mining of the 3^(-1 upper)103 working face in the Nalinhe No.2 Mine,and have important reference value for guiding the prevention and control of roof water hazard in similar areas.

关 键 词：侏罗系煤田 顶板水害 “三图法” 层次分析法(AHP) 富水性指数 

分 类 号：TD745[矿业工程—矿井通风与安全]