钒矿带矿区地质灾害危险性评价——以陕西山阳-商南钒矿带中村镇钒矿开采区为例
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摘要
在查明地质灾害孕灾背景、发育现状、矿区开采现状的基础上,基于定性结合定量的评价方法,开展了矿区地质灾害危险性评价.基于评价结果和野外调查情况,总结采矿活动对矿区主要地质灾害的影响.主要成果如下:1)总结了研究区地质灾害的发育及分布特征;2)综合分析矿区孕灾环境及地质灾害致灾因子,构建了研究区危险性评价指标体系,以ArcGIS为工作平台,以斜坡单元为最小评价单元,进行了由地质灾害易发性到地质灾害危险性的评价;3)针对评价结果,理论分析了采矿活动对滑坡、崩塌、泥石流及塌陷等灾害发生的影响方式.
On the basis of ascertaining the hazard-inducing environment,development situation of geological disasters and mining status,the geohazard risk assessment in mining areas is carried out with qualitative and quantitative methods. According to the assessment results and field survey,the influence of mining activities on main geohazards are summarized. The development and distribution characteristics of geohazards are studied. The disaster-causing environment and factors are analyzed comprehensively to construct the risk assessment index system. With ArcGIS as the working platform,the assessment from the susceptibility to risk is carried out with slope unit for minimum assessment unit. Based on the assessment results,the influence modes of mining activities on landslide,collapse,debris flow and subsidence are analyzed theoretically.
On the basis of ascertaining the hazard-inducing environment,development situation of geological disasters and mining status,the geohazard risk assessment in mining areas is carried out with qualitative and quantitative methods. According to the assessment results and field survey,the influence of mining activities on main geohazards are summarized. The development and distribution characteristics of geohazards are studied. The disaster-causing environment and factors are analyzed comprehensively to construct the risk assessment index system. With ArcGIS as the working platform,the assessment from the susceptibility to risk is carried out with slope unit for minimum assessment unit. Based on the assessment results,the influence modes of mining activities on landslide,collapse,debris flow and subsidence are analyzed theoretically.
引文
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(1)吴兴辉,等.陕西五洲矿业股份有限公司中村钒矿矿山地质环境保护与恢复治理方案.西安机械工业勘察设计研究院,2013.
(1)范文,等.陕南山洪地质灾害受灾区地区紫阳县瓦房店幅地质灾害详细调查报告.长安大学地质调查研究院,2016.
[2]杨学亮,殷文静.地下采矿对矿山地质环境的影响探究[J].中国金属通报,2018,26(1):149.
[3]雒卫.地下采矿对矿山地质环境影响[J].科技传播,2012,4(7):19,29.
[4]何兴江.地下采矿与地质环境互馈机理及矿山地质环境治理研究[D].成都:成都理工大学,2008.
[5]Oh H J,Lee S. Assessment of ground subsidence using GIS and the weights-of-evidence model[J]. Engineering Geology, 2010,115(1/2):36-48.
[6]Kim K D,Lee S,Oh H J,et al. Assessment of ground subsidence hazard near an abandoned underground coal mine using GIS[J].Engineering Geology,2006,50(8):1183-1191.
[7]黄道光.地质灾害危险性评价及重要性浅析[J].中国新技术新产品,2010,18(8):119.
[8]张丽,李广杰,周志广,等.基于灰色聚类的区域地质灾害危险性分区评价[J].自然灾害学报,2009,18(1):164-168.
[9]石磊彬.基于确定性系数法的区域地质灾害评价[J].山西建筑,2014,40(1):67-69.
[10]杜谦,范文,李凯,等.二元Logistic回归和信息量模型在地质灾害分区中的应用[J].灾害学,2017,32(2):220-226.
(1)吴兴辉,等.陕西五洲矿业股份有限公司中村钒矿矿山地质环境保护与恢复治理方案.西安机械工业勘察设计研究院,2013.
(1)范文,等.陕南山洪地质灾害受灾区地区紫阳县瓦房店幅地质灾害详细调查报告.长安大学地质调查研究院,2016.