煤矿砂岩水文地质特征及含水层突水危险性评价分析  

Hydrogeological Characteristics of Coal Mine Sandstone and Assessment and Analysis of Aquifer Water Inrush Risk

作　　者：杨飞 尚学勇 袁梦丽 YANG Fei;SHANG Xueyong;YUAN Mengli(Geological Disaster Prevention and Control Center of Henan Provincial Geological Bureau,Zhengzhou 450000,China)

机构地区：[1]河南省地质局地质灾害防治中心,郑州450000

出　　处：《煤炭技术》2024年第3期198-202,共5页Coal Technology

基　　金：河南省国土资源厅2017年度省国土资源科研项目(豫国土资函(2017)2237号)。

摘　　要：以某煤矿矿区砂岩含水层为例,根据煤矿砂岩补勘资料和放水试验资料,综合分析煤矿砂岩含水层水文地质特征,并分别采用突水系数法和脆弱性指数法对砂岩含水层突水危险性进行评价分析。根据研究结果显示,某煤矿矿区富水性表现为东部强、西部弱的特征,富水性最强分区为第一分区;矿区东南部区域突水危险性最高,西部区域突水危险性较小;18#煤层含水层正常涌水量和最大涌水量分别为1 200.79、1 860.84 m^(3)/h。Taking the sandstone aquifer in a coal mine area as an example,the hydrogeological characteristics of the coal mine sandstone aquifer were comprehensively analyzed according to the coal mine sandstone re-exploration data and the water release test data,and the water inrush coefficient method and the vulnerability index method were used to evaluate and analyze the water inrush risk of the sandstone aquifer respectively.According to the results of the study,the water-rich nature of a coal mine area is characterized by strong in the east and weak in the west,and the zone with the strongest water richness is the first zone.The risk of water inrush is the highest in the southeast area of the mining area,and the risk of water inrush in the western area is small.The normal and maximum water inflows of the No.18 coal seam aquifer were 1200.79 m^(3)/h and 1860.84 m^(3)/h respectively.

关 键 词：砂岩含水层 水文地质特征 突水危险性 

分 类 号：TD74[矿业工程—矿井通风与安全]