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工程科学与技术:2009,41(Z1):84-88
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“5·12”汶川地震次生山地灾害链(网)的初步研究
(中国科学院水利部 成都山地灾害与环境研究所,四川 成都 610041)
Preliminary Study on the Secondary Mountain Disaster Chains Induced by WenChuan Earthquake
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中文摘要: “5·12”汶川地震直接引发和间接诱发了大量的次生山地灾害。无论从灾害的种类、数量和规模等方面还是从灾害对人类所处的“自然-社会-经济”复杂系统的影响程度来看,由本次汶川地震诱发的次生山地灾害均属国内外罕见。同时,由于各类次生灾害之间相互激发、相互转化,形成了以“崩-滑-灾”、“崩-滑-湖-灾”、“崩-滑-流-灾”为主要表现形式的灾害链和灾害网。根据上述地震次生山地灾害链(网)的表现形式、发育成灾特点、成因分析等方面展开论述,描述了上述3条主要灾害链的发育成灾过程,总结出了上述地震次生山地灾害链的4条发育成灾规律,并从自然因素和人为因素等方面简要分析了本次汶川地震次生山地灾害链网的发育成因。
中文关键词: 次生山地灾害  链式发育  灾害链
Abstract:Many secondary mountain hazards have been direct induced or indirect induced by the Wenchuan earthquake on May the 12th, 2008.Not only in terms of the types, number, size of the secondary mountain hazards but also from the impact of them to the mankind’s “natural society economy” complex systems, the mountain hazards which induced by the Wenchuan earthquake are great and rare all over the world.At the same time, because of the excitation and mutual transformation between various types of the secondary mountain hazards,such disaster chains (nets) as “collapse landslides”,“collapse barrier lakes”,“collapse landslides debris flows” have been formed.In this paper,the forms,development characteristics and causes of Wenchuan quake induced secondary mountain disaster chains (networks) were preliminary analyzed.The development processes of the above mentioned three major disaster chains were described.Four laws which have behaved in the disaster process of the disaster chains were summed up. The development causes of the Wenchuan earthquake disaster Chains (nets) were briefly analyzed from natural factors and human factors.
文章编号:20090351     中图分类号:    文献标志码:
基金项目:国家973计划资助项目(2008CB425802)
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王春振,陈国阶,谭荣志.“5·12”汶川地震次生山地灾害链(网)的初步研究[J].工程科学与技术,2009,41(Z1):84-88.
.Preliminary Study on the Secondary Mountain Disaster Chains Induced by WenChuan Earthquake[J].Advanced Engineering Sciences,2009,41(Z1):84-88.