南芬露天矿边坡地质调查及危险性分区研究

发布时间：2018-04-17 03:02

本文选题：南芬露天矿 + 地质调查　；参考：《华北理工大学》2015年硕士论文

【摘要】：通过对南芬露天矿地质边坡各参数的调查与分析,运用模糊数学综合评判方法对采场边坡进行危险性分区,达到定性分析的效果,以对边坡稳定性进行预测。运用Arc GIS三维可视化分析软件和赤平极射投影数据处理软件,对边坡地质调查数据进行室内处理和分析。基于Arc GIS技术和边坡危险性分区结果,将灾害单元的离散变量差值计算为连续变量,实现南芬露天铁矿采场边坡危险性3D可视化分区图,最终得到最新的南芬露天铁矿采场边坡危险性区划图。经过本次对南芬露天铁矿北山、下盘和上盘的系统调查,共发现显著节理147条,显著弱层和夹层98条,中等规模以上滑坡体22个,危岩体56处,斑岩脉小构造3条,冲沟41条。按照极危险、危险、次稳定和稳定级别,共划分为4大区,细化为35亚区:其中,极危险区细化为11个亚区,占总面积的9.15%;危险区细化为10个亚区,占总面积的14.17%;次稳定区划分为9个亚区,占总面积的20.01%;稳定区划分为5个亚区占总面积的56.67%。针对每一区域制作了相应的边坡治理方案。
[Abstract]:Through the investigation and analysis of various geological parameters of slope in Nanfen open-pit mine, zonation of stope slope using fuzzy comprehensive evaluation method to qualitative analysis results to predict slope stability. By using the software and stereographic projection analysis of 3D visualization of Arc data processing software GIS, indoor processing and Analysis on the slope of geological survey data. The Arc GIS technology and the slope hazard zoning based on the results of the discrete variable difference calculation unit disasters as continuous variables, implementation of Nanfen open pit mine stope slope hazard zoning map visualization 3D, finally get the latest Nanfen open pit mine stope slope hazard zoning map. After this time Nanfen open pit mine Beishan system investigation footwall and hanging wall, 147 joints were found significantly, significantly weak interlayer 98, more than 22 medium scale landslide, dangerous rock body 56 At the small structure porphyry veins 3, gully 41. According to the extremely dangerous, dangerous, stable and stable level, is divided into 4 regions, subdivided into 35 sub regions: the most dangerous areas are divided into 11 sub regions, accounting for 9.15% of the total area; the danger zone is divided into 10 sub area, accounting for 14.17% of the total area; stable region can be divided into 9 sub regions, accounting for 20.01% of the total area; stable region can be divided into 5 sub regions, the total area of 56.67%. for each zone made of slope treatment schemes accordingly.

【学位授予单位】：华北理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD163.1

【参考文献】