景泰县峡儿井水泥用灰岩矿地质环境特征及生态环境影响评价

矿山开采对周边地质环境影响较严重，矿山建设之前有必要对生态环境影响进行评价。根据矿山生产建设规模评估，矿山生产及建设期间，因露天采场、排土场、生活办公、工业场地、道路修建等破坏土地，方式为挖损和压占，预测损毁土地面积合计11.24 hm²。通过对矿山地质环境影响评估，认为矿山开发对地质环境的影响为较轻—较严重；对土地的影响和破坏为较轻—中等—坏严重；引发地质灾害的可能性较轻。针对上述问题，在矿山开采和闭坑后，结合矿山的施工工艺、时序，结合工程土地复垦适宜性分析，对损毁的土地，采取建筑拆除、坡面清理、场地平整、覆土、种草等治理方案，实现防灾减灾和生态恢复的目的。

Geological environment characteristics and ecological environment impact assessment of cement limestone mine in Xia′er Well，Jingtai County

Mining has a serious impact on the surrounding geological environment.It is necessary to evaluate the impact of ecological environment before mining construction.According to the evaluation of the scale of mining production and construction，during the production and construction of the mine，the land was destroyed by the methods of excavation loss and compaction due to the open-pit mining sites，waste disposal sites，living and office，industrial site and road construction，etc.The total area of the damaged land is predicted to be 11.24 hm².Through the impact assessment of mine geological environment，it is considered that the impact of mine development on geological environment is light to serious.The impact and damage to the land is light to medium to severe.It is less likely to cause geological disasters.In view of the above problems，after mining and pit closure，combined with the construction technology and timing of the mine and the suitability analysis of the project land reclamation，the damaged land should be treated by building demolition，slope cleaning，site leveling，soil covering and grass planting.We will achieve the goals of disaster prevention and mitigation and ecological restoration.