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矿区的酸矿排水控制:识别地下水补充路径和源减少策略
Chao Zhang1, Fawang Zhang2, Wenping Mu3
1Center for Hydrogeology and Environmental Geology Survey, China Geological Survey, Tianjin, 300309, China.
Scientific reports
|January 6, 2026
概括
酸性矿井排水 (AMD) 是煤矿的一个主要挑战. 这项研究确定了地表水透通道,并提供了AMD预防的源减少策略.
科学领域:
- 环境科学 环境科学
- 地质地质地质地质地质地
- 采矿工程 采矿工程 采矿工程
背景情况:
- 矿山酸排水 (AMD) 在煤矿开采地区构成重大环境风险.
- 了解地下水充电路径对于减轻AMD形成至关重要.
研究的目的:
- 系统地调查煤炭开采区的地下水充电路径.
- 制定针对AMD的目标源减少策略.
- 用一种新的方法识别地表水透通道.
主要方法:
- 实地调查,测量和绘制地图.
- 在水力导电断裂区 (HCFZ) 的现场测量.
- 使用多源数据进行空间和水文分析,包括下坑视频监控.
主要成果:
- 采矿技术的进步增加了HCFZ的高度.
- 硬岩层中的采矿引起的裂会产生密集的,相互连接的网络,具有更高的透性.
- 表面水的透在高碳区,煤层和地形特征的交叉点上是首选的.
- 戈瓦斯的地下水补充遵循古山谷系统,与采矿引起的裂保持一致.
结论:
- 一种新的方法有效地识别了地表水透通道.
- 采矿活动显著改变了地下水文,促进了AMD的形成.
- 通过路径识别来确定有针对性的源减少策略,可以减轻采矿地区的AMD.
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