青海省祁连县辽班台砂金矿区地质环境问题及恢复治理研究  

Geological Environment Problems and Restoration Governance of Liaobantai Placer Gold Mine in Qilian County,Qinghai Province

作　　者：罗岐恩 祁汉文 LUO Qien;QI Hanwen(Qinghai Province Non-ferrous First Geological exploration institute,Xining 810000,Qinghai,China)

机构地区：[1]青海省有色第一地质勘查院,青海西宁810000

出　　处：《中国钼业》2023年第1期21-26,53,共7页China Molybdenum Industry

基　　金：青海省省级矿山地质环境治理专项基金(青国土资[2020]62号)。

摘　　要：辽班台砂金矿属河谷(河漫滩)和阶地(低阶地)型砂金矿床,矿区地表原始生态地质环境为河谷阶地灌木丛和河漫滩裸地。由于矿区群采砂金对该区域自然环境破坏严重,致使地形地貌景观破坏、废弃矿渣压占土地资源、采坑破坏含水层、矿渣堆可能引发滑坡地质灾害等。针对以上地质环境问题,开展地质环境恢复治理研究,采用疏浚河道、土地平整、植被恢复、设置围栏等手段,减少高深采坑和高陡堆积体的危害,并在恢复后的地表进行绿化工程,减少水土流失,防止泥石流等地质灾害的形成。矿区生态环境恢复治理,可保障当地畜牧业的可持续性发展和生态环境的良性循环,产生较好的生态、社会、经济效益。Liaobantai placer gold deposit belongs to valley(floodplain)and terrace(low terrace)type placer gold deposit.The original ecological geological environment of mine surface is valley terrace shrub and floodplain bare land.Due to the serious damage to the natural environment of the mining area,the landform landscape is destroyed,the waste slag occupies the land resources,the aquifer is destroyed by mining pit,and the slag heap may cause landslide geological disasters.In view of the above geological environment problems,research on the restoration governance of geological environment has been carried out.Measures such as dredging channels,land leveling,vegetation restoration,fencing and other means have been adopted to reduce the harm caused by deep mining pits and high steep accumulation bodies,and greening projects has been carried out on the restored surface to reduce soil erosion and prevent the formation of geological disasters such as debris flow.The restoration governance of ecological environment in mining area can guarantee the sustainable development of local animal husbandry and the virtuous cycle of ecological environment,and produce better ecological,social and economic benefits.

关 键 词：砂金矿 地质环境 恢复治理 效益评价 

分 类 号：TD88[矿业工程—矿山开采]