基于GIS和AHP的安康市滑坡地质灾害危险性评估
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摘要
安康市滑坡崩塌频繁发生,对当地造成了不可估量的损失。以安康市地震小区划为依托,对当地滑坡地质灾害的易发性进行研究。在研究区进行野外踏勘和搜集资料的基础上,借助magis和arcgis平台强大的绘图、分析功能,运用层次分析法对滑坡灾害因子进行加权叠加计算,绘制滑坡灾害危险性区划图。区划结果分为四个等级:无危险区、低危险区、中危险区、高危险区。无危险区、低危险区滑坡灾害易发性较低,为适宜城市规划和项目实施工作地带,中危险区、高危险区则要加以治理以减少滑坡地质灾害对居民生命和财产的威胁。
In recent years,some landslide in Ankang occurred frequently,which caused considerable damage to the local. In order to coordinate the work of regional disaster prevention and reduction,the article is based on the earthquake microzonation in Ankang and studied the susceptibility of local landslide. The paper classified the landslide hazard factor under the premise of the collection of data and field survey in the area. It has used several tools including MAPGIS and ARCGIS which have powerful drawing and analysis functions. Then,the evaluation factors are weighted superposition used for rendering the landslide hazard zonation map,which is divided into four grades: no danger zone,low risk zone,danger zone and high risk area. So it will provide important reference for city planning and project in the future so as to reduce the threat of landslide geological disasters on the lives and property of residents.
In recent years,some landslide in Ankang occurred frequently,which caused considerable damage to the local. In order to coordinate the work of regional disaster prevention and reduction,the article is based on the earthquake microzonation in Ankang and studied the susceptibility of local landslide. The paper classified the landslide hazard factor under the premise of the collection of data and field survey in the area. It has used several tools including MAPGIS and ARCGIS which have powerful drawing and analysis functions. Then,the evaluation factors are weighted superposition used for rendering the landslide hazard zonation map,which is divided into four grades: no danger zone,low risk zone,danger zone and high risk area. So it will provide important reference for city planning and project in the future so as to reduce the threat of landslide geological disasters on the lives and property of residents.
引文
[1]单新建.基于环境因子AI-GIS方法的天然滑坡危险性预测[J].地质科技情报.2004,23(3):109-112.
[2]唐川.GIS支持下的地震诱发滑坡危险区预测研究[J].地震研究.2001,24(1):73-81.
[3]王余庆.预测岩土边坡地震崩滑的综合指标法研究[J].岩土工程学报.2001,23(3):311-314.
[4]王志旺.基于GIS技术的区域滑坡分形特征分析与危险性评价[D].中国地质大学.2010:53-79.
[5]Mario Parise,Randall W.Jibson.Seismic landslide susceptibility rating of geologic units based on analysis of characteristics of landslides triggered by the 17 January,1994 Northridge,California earthquake[J].Engineering Geology,2000,58:251-270.
[6]Saaty T L.There is no mathematical validity for using fuzzy number crunching in the analytic hierarchy process[J].Journal of Systems Science and Systems Engineering,2006,15(4):457-464.
[7]Saaty T L,Trail L T.On the invalidity of fuzzifying numerical judgments in the analytic hierarchy process[J].Mathematical and Computer Modelling,2007,46(7-8):962-975.
[8]Saaty T L,TV an L T.Fuzzy judgments and fuzzy sets[J].International Journal of Strategic Decision Sciences,2010,1(1):23-40.
[9]郭金玉.层次分析法的研究与应用[J].中国安全科学学报.2008,18(5):148-153.
[10]秦吉.现代统计信息分析技术在安全工程方面的应用-层次分析法原理[J].工业安全与防尘.1999,25(5):44~48.
[11]王礼先.关于荒溪分类[J].北京林学院学报.1982,3:31-39.
[2]唐川.GIS支持下的地震诱发滑坡危险区预测研究[J].地震研究.2001,24(1):73-81.
[3]王余庆.预测岩土边坡地震崩滑的综合指标法研究[J].岩土工程学报.2001,23(3):311-314.
[4]王志旺.基于GIS技术的区域滑坡分形特征分析与危险性评价[D].中国地质大学.2010:53-79.
[5]Mario Parise,Randall W.Jibson.Seismic landslide susceptibility rating of geologic units based on analysis of characteristics of landslides triggered by the 17 January,1994 Northridge,California earthquake[J].Engineering Geology,2000,58:251-270.
[6]Saaty T L.There is no mathematical validity for using fuzzy number crunching in the analytic hierarchy process[J].Journal of Systems Science and Systems Engineering,2006,15(4):457-464.
[7]Saaty T L,Trail L T.On the invalidity of fuzzifying numerical judgments in the analytic hierarchy process[J].Mathematical and Computer Modelling,2007,46(7-8):962-975.
[8]Saaty T L,TV an L T.Fuzzy judgments and fuzzy sets[J].International Journal of Strategic Decision Sciences,2010,1(1):23-40.
[9]郭金玉.层次分析法的研究与应用[J].中国安全科学学报.2008,18(5):148-153.
[10]秦吉.现代统计信息分析技术在安全工程方面的应用-层次分析法原理[J].工业安全与防尘.1999,25(5):44~48.
[11]王礼先.关于荒溪分类[J].北京林学院学报.1982,3:31-39.
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