煤炭开采对灰岩水影响研究  

Study on Influence of Coal Mining on Limestone Water

作　　者：谢毫 XIE Hao(Anhui Province Mine Ecological Restoration Engineering Laboratory,Huainan,Anhui 232001;National Engineering Laboratory for Coal Mine Ecological Environment Protection,Huainan,Anhui 232001)

机构地区：[1]安徽省矿山生态修复工程实验室,安徽淮南232001 [2]煤矿生态环境保护国家工程实验室,安徽淮南232001

出　　处：《中国煤炭地质》2023年第9期39-43,共5页Coal Geology of China

基　　金：安徽省矿山生态修复工程实验室开放课题资助课题(KS-2021-006)。

摘　　要：在谢桥煤矿深层煤炭的开采过程中,常采用疏水降压的方式开展防治水工作。为研究谢桥煤矿在煤炭开采过程中采取的疏排水措施对地下灰岩水水量和水质的影响,通过对谢桥矿东风井-440m井底车场的自流灰岩水连续一年实测和分析,以及对2013—2021年谢桥矿灰岩水的历史水文观测数据和水化学数据进行综合分析,研究了灰岩水水量和水质的变化情势。结果表明:短时期的开采活动基本不会对灰岩水的水质和水量造成影响;在长时期下,受谢桥矿煤炭开采扰动影响,K^(+),Na^(+),Cl^(-),SO_(4)^(2-)等水化学指标的含量呈减小趋势,煤炭开采对灰岩水的水质具有一定的正向影响;灰岩水水位整体呈下降趋势,煤炭开采对水量赋存存在一定负面影响,但可以通过对灰岩水开展注浆封堵等工程,减少灰岩水的涌出、减缓水位下降,从而有效保护灰岩水水资源。In the process of deep coal mining in Xieqiao coal mine,drainage and pressure reduction methods are often used to carry out water prevention and control work.In order to study the influence of drainage measures taken in the coal mining process on the water quantity and quality of underground limestone water,a one-year continuous measurement and analysis was conducted on the self flowing limestone water in the Dongfeng shaft-440m underground parking lot of Xieqiao mine.And a comprehensive analysis was also conducted on the historical hydrological observation data and hydrochemical data of limestone water in Xieqiao mine from 2013 to 2021.The variation trend of limestone water quantity and quality were studied.The results showed that the water quality and quantity of limestone water were not affected by mining activities in a short period.The long-term coal mining will disturb the chemical indexes of ionic water such as K^(+),Na^(+),Cl^(-),and SO_(4)^(2-)in limestone water,and make their contents decrease.Revealed that coal mining has a certain impact on the water quality of limestone water.Limestone water level shows a downward trend.Coal mining has a certain influence on the occurrence of limestone water and water resources.But it can reduce the gushing of limestone water and slow down the drop of water level through grouting and plugging engineering,to effectively protect limestone water and water resources.

关 键 词：灰岩水 水化学指标 水位 谢桥煤矿 

分 类 号：X523[环境科学与工程—环境工程]