青海省都兰县淡水沟锰矿地质环境问题及恢复治理探析  

The Research on Geological Environment Problems and Restoration of Danshuigou Manganese Mine in Dulan County Qinghai Province

作　　者：李帆 申宁 陈生凯 杨德明 LI Fan;SHEN Ning;CHEN Shengkai;YANG Deming(Qinghai Provincial Sixth Geological Exploration Institute,Xining,Qinghai 810000,China;Qinghai Gold Resources Development Engineering Technology Research Center,Dulan,Qinghai 816100,China;Dulan Jinhui Mining Co.,Ltd.,Dulan,Qinghai 816100,China)

机构地区：[1]青海省第六地质勘查院,青海西宁810000 [2]青海省金矿资源开发工程技术研究中心,青海都兰816100 [3]都兰金辉矿业有限公司,青海都兰816100

出　　处：《中国锰业》2023年第4期67-73,共7页China Manganese Industry

摘　　要：研究区地处柴达木盆地南缘,地貌上属侵蚀构造中高山,属于地质灾害中等易发分区,研究区内主要发育的灾害类型有泥石流、地面塌陷、崩塌以及不稳定斜坡。其中地面塌陷3处、崩塌8处、不稳定斜坡5处、泥石流沟2条。研究通过地质环境调查评价,认为矿区内地面塌陷,可能造成的损失较小,对矿山地质环境影响程度较轻;泥石流规模为小型,危害程度中等;不稳定斜坡发生灾害的可能性均较大,规模均较小,其中X1、X3、X5不稳定斜坡对矿山地质环境影响较严重,X2、X4不稳定斜坡对矿山地质环境影响较轻;崩塌发生的可能性均大,规模均为中等或较小,可能造成的损失小。针对上述地质环问题,矿区开展了削坡、清理围岩、修建不稳定斜坡挡土墙、泥石流导流墙、回填地裂缝等措施治理矿区地质灾害;通过场地平整、覆土、植被绿化等措施恢复地形地貌景观,实现矿区地质环境治理与生态环境恢复。The study area is located in the southern edge of the Qaidam Basin.It is a medium-high mountain of the eroded structure,which is belong to medium level of the prone subarea of geological disaster.The main disaster types in the study area are debris flow,ground collapse,collapse and unstable slope.There are 3 ground collapses,8 collapses,5 unstable slopes and 2 debris flow gullies.Based on the investigation and evaluation of geological environment,it is considered that the ground collapse in the mining area may cause less loss and has less influence on the geological environment of the mine.The scale of debris flow is small and the degree of harm is moderate.The disaster probability of unstable slope is large,and the scale is small.The unstable slope X1,X3,X5 has more serious influence on the mine geological environment,while the unstable slope X2,X4 has less influence on the mine geological environment.The probability of collapse is large,the scale is medium-small,and the possible loss is small.In view of the above-mentioned geological problems,some measures have been taken to control the geological disasters in the mining area,such as cutting slope,cleaning the surrounding rock,building unstable slope retaining wall,debris flow diversion wall and filling ground crack.Through the site leveling,soil cover,vegetation greening and other measures to restore the topography and landscape.To achieve the mine geological environment management and ecological environment recovery.

关 键 词：都兰县 淡水沟锰矿 地质环境问题 恢复治理 

分 类 号：TD167[矿业工程—矿山地质测量]