卓尼县阿子滩锰矿闭坑矿山地质环境保护与恢复治理

Geological Environment Protection and Restoration of AzitanManganese Mine Closure in Zhuoni County

研究矿山以露天开采为主,造成的主要地质环境问题为地质灾害隐患、含水层的破坏、地形地貌景观的破坏和土地资源的挖损和压占破坏。通过地质环境影响评估,矿山开采形成的不稳定斜坡X1对矿山地质环境的影响均较严重;对地下水环境的影响和破坏程度均较轻;对矿区地形地貌景观的影响为中度-较严重;对矿区土地资源的影响程度为中度-较严重。通过采用坡面整理、坡脚反压回填、排水渠、渣堆清运、构筑物拆除、场地平整、覆土绿化、围栏、警示牌、监测的方法对矿山地质环境问题进行治理,可实现矿区地质环境治理与生态系统恢复。

The mine is mainly open-pit mining,and the main geological environmental problems caused by this mine are hidden danger of quality disaster,destruction of aquifer,destruction of landform and landform landscape,excavation loss and occupation damage of land resources.Through the geological environment impact assessment,the unstable slope X1 formed by mining has a serious impact on the geological environment of the mine.The impact or damage degree to groundwater environment is relatively light.The impact on landform landscape of mining area is moderate to serious.The degree of impact on land resources in mining area is moderate to serious.The method of slope finishing,including the slope foot backfilling,drainage channel,slag heap clearing,structure demolition,site leveling,soil greening,fence,warning sign and monitoring,is adopted to control the geological environment problems of the mine to realize the geological environment control and ecological system restoration of the mine.