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汶川地震扰动区小流域滑坡泥石流风险评估——以都江堰白沙河流域为例
Alternative TitleLandslide and debris flow risk assessment for small water sheels in the Wenchuan earthquake disturbance area: taking the Baishahe River Basin in Dujiangyan as an example
乔建平1,2; 吴彩燕3; 樊晓一3
2018
Source Publication中国地质灾害与防治学报
ISSN1003-8035
Volume29Issue:4Pages:1-9
SubtypeArticle
Contribution Rank1
Abstract本文采用风险区划、风险概率、风险受损率、风险防御工程效益4要素,以汶川大地震极震扰动区的都江堰白沙河为研究区,开展了典型小流域滑坡泥石流风险综合评估研究,建立了综合要素评估模型.评估结果显示,高、较高风险区面积占全区的15.76%;在大暴雨条件下,发生风险的概率>0.85;占全区65%固定资产的风险受损率>1;当进行有效工程治理后风险损失将得到折减,高风险区为37%,较高风险区为32%.综合要素评估法能够更准确预测评估区可能遭受的损失情况,为风险管理提供参考依据.
Other AbstractIn this paper,the risk zoning,risk probability,risk damage ratio and risk defense engineering benefit are used to evaluate the landslide risk of typical small watershed landslide in Dujiangyan area of the Wenchuan earthquake,and a comprehensive factor assessment model is established. As a result of the assessment,the area of high and higher risk areas accounts for 15.76 % of the total area; Under heavy rain conditions,the probability of risk >0.85; The risk loss rate of 65 % of the fixed assets in the region >1; Risk losses will be reduced when effective engineering governance is in place,with 37 per cent in high-risk areas and 32 per cent in higher-risk areas. The comprehensive factor assessment method can predict the possible loss in the assessment area more accurately,and provide a reference basis for risk management.
Keyword地震 小流域 滑坡 泥石流 风险评估
DOI10.16031/j.cnki.issn.1003-8035.2018.04.01
Indexed ByCSCD
Language中文
CSCD IDCSCD:6308427
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/24054
Collection山地灾害与地表过程重点实验室
Corresponding Author乔建平
Affiliation1.中国科学院地表过程与山地灾害重点实验室,四川成都610041;
2.中国科学院成都山地灾害与环境研究所,四川成都610041;
3.西南科技大学,四川绵阳621000
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
乔建平,吴彩燕,樊晓一. 汶川地震扰动区小流域滑坡泥石流风险评估——以都江堰白沙河流域为例[J]. 中国地质灾害与防治学报,2018,29(4):1-9.
APA 乔建平,吴彩燕,&樊晓一.(2018).汶川地震扰动区小流域滑坡泥石流风险评估——以都江堰白沙河流域为例.中国地质灾害与防治学报,29(4),1-9.
MLA 乔建平,et al."汶川地震扰动区小流域滑坡泥石流风险评估——以都江堰白沙河流域为例".中国地质灾害与防治学报 29.4(2018):1-9.
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