ISSN 1009-6248CN 61-1149/P 双月刊

主管单位:中国地质调查局

主办单位:中国地质调查局西安地质调查中心
中国地质学会

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    基于GIS支持下的新疆哈密双井子26号铁矿矿区地质灾害危险性评估

    Risk Evaluation of Geology Hazard Based on GIS in the 26th Shuangjingzi Iron Mine in Hami, Xinjiang

    • 摘要: 地质灾害的孕育与发生给社会进步和经济发展带来了极大的破坏和损失,其致灾因子复杂多样,空间差异显著。因而确定地质灾害危险性属于空间型的评判问题,可以采用空间分析的最新技术手段——GIS进行评价研究。笔者以干旱半干旱地区——新疆哈密市双井子26号铁矿为研究区,通过对崩塌、滑坡、泥石流、地面塌陷、沉降、地裂缝6大灾种因子进行定性和定量相结合的危险性分析,利用GIS的计算与空间分析功能,将研究区各潜在灾种因子叠加分析,最终编制出研究区的地质灾害危险性评估分区图。该图描述了在现有自然条件和人类工程活动下的潜在地质灾害危险区。研究成果为全面反映灾情,确定减灾目标,优化防御措施,进行科学地减灾决策提供了重要依据。

       

      Abstract: The bred and the occurrence of geology hazard have brought about tremendous destroy and loss in the social progress and economic development,and the hazard factor is diverse,and the spaced ifference is notable.Therefore,it is probable to use GIS,the latest technology means for space analyzing,to determine the geological hazard evaluation of the space problem.The author relied on arid and semi-aridregions—the 26th Shuangjingzi metaliron,in Hami City,Xinjiang,as the study area,combining qualitative with quantitative risk analysis to the collapse,land slides,debris flows,ground subsidence and cracks,settlement,the sixmajor disasters,making full use of the calculation and spatial analysis function of GIS,and studying the potential disaster zone of stacking factor analysis,and making adistrict map of geological hazard assessment about the study area finally.The map describes the potential danger area under the existing natural conditions and human activities project.The study results offer avaluable basis for reflecting the overall disaster,identifying disaster reduction objectives,optimizing defen sive measures, and making scientific and mitigation decisions.

       

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