| 常宝,潘珊,余源,魏贺,贺勇.矿井涌水多源补给识别及优势通道分级阻控研究——以湖南省花垣锰矿区为例[J].矿产勘查,2026,17(8):1479-1488 |
| 矿井涌水多源补给识别及优势通道分级阻控研究——以湖南省花垣锰矿区为例 |
| Identification of multi-source recharge and hierarchical control of preferential flow pathways for mine water inflow: A case study of the Huayuan manganese mining area, Hunan Province, China |
| 投稿时间：2026-06-14 |
| DOI：10.20008/j.kckc.202608014 |
| 中文关键词: 花垣锰矿区 矿井涌水 多源补给 优势通道 分级阻控 |
| 英文关键词: Huayuan manganese mining area mine water inflow multi-source recharge preferential flow path.way hierarchical control |
| 基金项目:本文受湖南省地质院科技计划项目(HNGSTP202609)资助。 |
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| 中文摘要: |
| 针对湖南省花垣锰矿区长期地下开采引发的矿井涌水量大、补给来源复杂、导水通道隐蔽及含锰污水治理负荷高等问题，本文采用水文地质调查、地球物理勘探、钻探、示踪试验、现场注水及室内柔性壁渗透试验相结合的方法，识别了矿井涌水主要补给源和优势导水通道；据此实施了以补给源控制、优势通道封堵和清污分流为主的分级阻控措施，并评价了涌水减量及污染阻控效果。结果表明:矿井涌水主要受废弃老窿倒灌、地表溪沟渗漏、老旧钻孔垂向连通及巷道汇流控制。溪沟 B示踪剂投放约 6h后在 X048老窿出现响应，持续约 78 min，综合物探揭示地表低阻异常向深部采空巷道连续延伸。处理后 6口验证孔透水率降低 94%～95%，注浆结实体渗透系数为 3.74×10-8～7.63×10-8 m/s，溪沟 B下游 Mn2+浓度由 9.39 mg/L降至 0.06 mg/L。 |
| 英文摘要: |
| To address the large mine water inflow, complex recharge sources, concealed water-conducting pathways, and high treatment load of Mn-contaminated mine water caused by long-term underground mining in theHuayuan manganese mining area, an integrated approach combining hydrogeological investigation, geophysical ex.ploration, drilling, tracer tests, field water-injection tests, and laboratory flexible-wall permeability tests was ad.opted. The major recharge sources and preferential flow pathways of mine water inflow were identified. Based onthese findings, hierarchical control measures focusing on recharge source control, sealing of preferential flow path.ways, and separation of clean and contaminated water were implemented, and their effects on inflow reduction andpollution control were evaluated. The results show that mine water inflow is mainly controlled by backflow throughabandoned adits, leakage from surface streams, vertical hydraulic connection through old boreholes, and conver.gence along underground roadways. In Creek B, a tracer response was observed at the X048 abandoned adit approxi.mately 6 h after tracer injection and lasted for about 78 min. Integrated geophysical surveys further revealed thatlow-resistivity anomalies extended continuously from the ground surface to deep mined-out roadways. After treat.ment, the water absorptivity of six verification boreholes decreased by approximately 94%-95% on average, whilethe permeability coefficients of the grouted solidified bodies ranged from 3.74×10-8 to 7.63×10-8 m/s. Meanwhile, the Mn2+ concentration downstream of Creek B decreased from 9.39 mg/L to 0.06 mg/L. |
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