湖南某铁矿地质环境评价及恢复治理措施

Remediation Measrures and Evaluation on the Geological Environment of an Iron Mine in Hunan Province

为充分掌握湖南某铁矿矿区地质环境现状,并对矿区地质环境进行恢复治理,详细分析了矿区地质环境特征,分别从矿区地质灾害影响程度、含水层破坏程度、地形地貌景观影响程度和土地资源影响程度等方面对矿区地质环境进行了详细评价。结果表明:由地质灾害引起的地表塌陷和裂缝较严重;随意堆砌的尾砂和废石对水资源、地形地貌和土地资源的影响较大。针对上述问题,通过对地表塌陷区进行回填,利用灌注水泥砂浆的方法回填封堵地表裂缝,在矿区附近规划渣场并将尾砂及废石运输至该渣场,采用植草种树等方式进行矿区生态修复,取得了理想效果,对于类似矿区地质环境恢复治理有一定的参考价值。

In order to fully understand the geological environment of an Iron Mine in Hunan Province,and take effectiveremediation measures of the geological environment of the mining area,the geological environment characteristics of the min-ing area is analyzed in detail,and the geological environment is evaluated from the four aspects of influence degree of the minegeological disasters,destructiveness of the aquifer,influence of landscape topography and impact degree of the land resources.The results show that：the surface subsidence and cracks caused by geological disasters are very serious;the tailings and wasterocks randomly piled up greatly affect the water resources,topography and land resources.In view of the above problems,com-bined with the planning of local governments in the vicinity of the mining area,the following restoring measures of the geologi-cal environment are proposed,such as backfilling of surface subsidence area,backfilling and sealing of surface cracks by pour-ing cement mortar,planning slag field near the mining and tailing sand and waste rock can be transported to the slag yard,grass planting trees and other means of ecological restoration method.The practive effects of the above measures is good,it canprovide reliable reference for the geological environment remediation of the simialr mining area.