柿竹园野鸡尾矿区灾害地质及治理方案研究

【作者】 罗卫；

【导师】 黄满湘；

【作者基本信息】 中南大学 ， 矿产普查与勘探， 2005， 硕士

【摘要】 柿竹园有色金属矿位于湖南省郴州市境内,是闻名遐迩的有色金属博物馆。野鸡尾矿区是该矿的重要组成部分,由于该区覆盖型岩溶发育,随着生产的不断进行,导致地面塌陷等岩溶地质灾害的发生,严重影响其正常生产。 论文在分析、研究前人各种工作成果的基础上,经过深入细致的水文地质、灾害地质和工程地质调查,收集大量地质信息,从前人未能解决的问题入手,应用灾害地质学、水文地质学、环境地质学、工程地质学和工程力学等理论和方法,并采用计算机处理数据、模拟制图等手段,对矿区地质灾害发生的原因主要从以下几个方面进行了研究: 1.矿区地表水、岩溶水、裂隙水、尾砂库水与坑道涌水的联系; 2.矿区隐伏浅部岩溶、地质构造、第四系坡积物及降水与地面塌陷的关系; 3.选厂厂房变形与地面塌陷的关系; 4.选厂潜在滑坡的工程地质评价。 通过研究认为,矿区坑道涌水主要来源为地表水、岩溶水、裂隙水,牛角垄溪流是坑道涌水的主要地表水来源;矿区地面塌陷是由于400m中段坑道涌水破坏了地下水动力场的动态平衡所致;厂房变形是地面塌陷的发生引起厂房地基不均匀下沉的结果;文中运用成因历史分析法和极限平衡条分法对选厂滑坡进行定性和定量稳定性分析,认为选厂滑坡处于一种不稳定状态中。 根据矿区地质灾害发生的不同原因,提出了相应的治理和预防措施。更多还原

【Abstract】 Located in Chenzhou City of Hunan province, Shizhuyuan nonferrous metals deposit is well-known as the museum of nonferrous metals. Yejiwei mine is the important part of Shizhuyuan deposit. With the going on of production, the land collapse and the other karst geological disaster are always happening for the developing of covering karst which seriously affect the normal producing.Based on the predecessor’s work, through the careful and thorough hydrogeology、disaster geology and engineering-geology investigation, acquisition of a great amount of geological information, the article is beginning with the problems which predecessor can’t solve, applying the method and theory of disaster-geology 、 geohydrology 、 environgeology、 engineering-geology and engineering mechanics, using computer to deal with data and simulate relevant maps.It research the cause of ore district geological disaster from the following aspects:1. The connection between water bursting in mine tube with surface water、 karst water、 crack water and mine tailings water;2. The relation between land collapse with hidden karst、 geological structure, 、 sediments of quaternary and rainfall;3. The relation between workshop with land collapse;4. Stability analysis of potential landslide in concentrator.The study suggested that the resource of water bursting in mine tube are surface water> karst water and crack water etc. Niujiaoneng stream is the main resource of surface water; the land collapse is caused by the destroy the balance of underwater hydrodynamic conditions for water bursting in mine tube at 400m sublevel. The distortion of workshop is the result of the base nonuniform sinking by land collapse. It thinks that the landslide is unstable state by the ways of origin historical analysisand limit equilibrium methods.The measures of management are discussed which are based on the different causes of geological disaster in ore district.更多还原