摘要
为判别阳城煤矿3305工作面下平巷掘进遇到的FD53断层水的水源,进而决定巷道掘进是否可以直接穿过断层,在确定砂岩含水层、三灰含水层、奥灰含水层为FD53断层水可能水源的基础上,现场采集了断层及这3个含水层的水样进行常规化学成分水质检测。选取ρ(K^(+)+Na^(+))、ρ(Ca^(2+))、ρ(Mg^(2+))、ρ(HCO^(-)_(3))、ρ(Cl^(-))、ρ(SO^(2-)_(4))、pH、总溶解固体(total dissolved solids,TDS)作为水源识别化学指标,利用水化学特征Piper图排除了断层水水源为砂岩含水层的可能性;基于灰色关联模型,建立断层水和各含水层之间的灰色关联度,识别出断层水水源为三灰水;应用最新的三维高密度电法探测技术,获得了3个含水层在3305工作面的富水性分布特征,排除了断层水水源为奥灰水的可能性,并进一步判定断层水水源为三灰水。最终的判别结果表明,FD53断层水的水源为水量可控的三灰水,巷道掘进可以直接穿过断层。
By distinguishing the water source of FD53 fault water in working face 3305 of Yangcheng coal mine,whether the roadway excavation can directly pass through the fault is determined.Based on the determination that sandstone aquifer,the third limestone aquifer and Ordovician limestone aquifer are the possible water sources of FD53 fault water,the water samples of fault and three aquifers are collected on site,and the water quality of conventional chemical composition was tested.ρ(K^(+)+Na^(+)),ρ(Ca^(2+)),ρ(Mg^(2+)),ρ(HCO^(-)_(3)),ρ(Cl^(-)),ρ(SO^(2-)_(4)),pH and total dissolved solids(TDS)were selected as the chemical indicators for water source identification.The possibility that fault water source is sandstone aquifer was eliminated by using Piper diagram of hydrochemical characteristics.Based on the grey correlation model,the grey correlation degree between fault water and three aquifers was established,and the fault water source was identified as the third limestone aquifer.Using the latest three-dimensional high-density electrical detection technology,the water abundance distribution characteristics of three aquifers in working face 3305 were obtained,the possibility that the fault water source is Ordovician limestone water was ruled out,and the fault water source was further determined as the third limestone aquifer.It is concluded that the water source of FD53 fault water is the the third limestone aquifer with controllable water volume,and the roadway excavation can directly pass through the fault.
作者
施龙青
史雅迪
邱梅
郭中安
杨建飞
姜海滨
SHI Longqing;SHI Yadi;QIU Mei;GUO Zhongan;YANG Jianfei;JIANG Haibin(College of Earth Sciences and Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China;Shanxi Zhongtai Energy Investment Co. , Ltd. , Yulin, Shaanxi 719109, China)
出处
《中国科技论文》
CAS
北大核心
2022年第1期1-8,共8页
China Sciencepaper
基金
国家自然科学基金资助项目(51804184)
山东省自然科学基金资助项目(ZR2020KE023)。
关键词
断层水源判别
Piper三线图
灰色关联
三维高密度电法
identification of fault water source
Piper diagram
grey correlation
3D high density electric method
