采煤对陕北榆溪河流域地下水资源的影响分析——以杭来湾煤矿开采区为例

发布时间：2018-02-17 01:30

本文关键词： 地下水资源煤炭开采定量识别榆溪河流域陕北地区　出处：《干旱区资源与环境》2017年03期 　论文类型：期刊论文

【摘要】：陕北榆林榆溪河流域属于生态脆弱区,煤炭开采活动严重影响了其地下水资源及地表生态环境,导致该流域水资源严重短缺,水质变差,但很难分析评价其影响程度。以杭来湾煤矿为例,在分析水文地质工程地质条件的基础上,通过冒裂带高度、地下水静储量、地下水动储量、采空区积水的计算和实地采集水样的检测,定量识别和定性分析了煤矿开采对榆溪河流域地下水资源的破坏影响。结果表明杭来湾首采区煤炭开采造成的地下水静储量破坏值为29.76万m3,动储量破坏值为1.35万m3/h,采空区积水为5991.52万m3;开采后地下水水质基本达标,影响较小。为了补偿地下水资源的破坏,须加强矿坑水的综合利用。
[Abstract]:The Yulin Yuxi River basin in northern Shaanxi is an ecologically fragile area. Coal mining activities have seriously affected its groundwater resources and surface ecological environment, resulting in a serious shortage of water resources and poor water quality in the basin. However, it is difficult to analyze and evaluate its influence degree. Taking Hanglai Wan Coal Mine as an example, based on the analysis of hydrogeological engineering geological conditions, through fracture zone height, groundwater static reserves, groundwater dynamic reserves, The calculation of water accumulation in goaf and the detection of water samples collected on the spot, The influence of coal mining on groundwater resources in Yuxi River Basin is analyzed quantitatively and qualitatively. The results show that the destruction value of groundwater static reserves and dynamic reserves is 297,600 m3 and 13,500 respectively. M 3 / h, water stored in the goaf is fifty-nine million nine hundred and fifteen thousand and two hundred m3. After exploitation, the groundwater quality is basically up to standard. In order to compensate for the damage of groundwater resources, it is necessary to strengthen the comprehensive utilization of mine water.
【作者单位】：长安大学环境科学与工程学院;
【基金】：国家自然科学基金重点项目(41230314);国家自然科学基金(41302207) 教育部国家外专局高等学校学科创新引智计划("111")项目(B08039) 中国工程院重点咨询项目(201407x2002) 陕西省项目陕北煤炭开采区采动损害调查项目资助
【分类号】：P641;TD82

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