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The Comprehensive Research About The Possibility Of Slope Debris Flow Occurrence

Posted on:2008-01-22Degree:MasterType:Thesis
Country:ChinaCandidate:C LiuFull Text:PDF
GTID:2120360215466251Subject:Physical geography
Abstract/Summary:PDF Full Text Request
The possibility of slope debris flow occurrence is the difficulty area and importance area ofgeography。Many debris flow experts carry on the research from the each aspect.for example.Some debris flow experts carry on the possibility of debris flow occurrence pass precipitation factor.And some debris flow experts carry on the possibility of debris flow occurrence pass formationfactor of debris flow.It is a development area and need thorough. The article has a lot of researchon slope debris flow of Beibei in Chongqing. on this basis, The article begin the formation factorof slope debris flow of Beibei in Chongqing and mainly analyze the precipitation factor of slopedebris flow which is the most important triggering factor of slope debris flow occurrence. Inaddition, The article carry on the possibility of slope debris flow occurrence by two method. Onemethod make use of the precipitation factor of slope debris flow to acquire conclusion, Andanother method make use of the formation factor of slope debris flow to acquire conclusionThe full article is divided into the following eight parts.The first part is the overview of the studied region. It sums up the geographical position andnatural conditions of Beibei in Chongqing, In addition, The chapter also introduce the generalsituation of slope debris flow disaster. And according to the actual studying situation, It illustratesthe background, concept and methodology of this research work.The second part analyzes the geology condition of slope debris flow occurrence.The third part analyzes the geography condition of slope debris flow occurrence.The fourth part is one of the points of the article. It discusses function of precipitation onoccurrence of slope debris flow. It is conjunct result of antecedent rainfall and intensity of short duration rainfall. Antecedent rainfall is very important precipitation of slope debris flow occurrence.Intensity of short duration rainfall is direct condition of slope debris flow occurrence. And in thepart, The article also analyzes the critical precipitation of slope debris flow of Beibei inChongqing and acquire the conclusion, namely the daily rainfall and intensity of short durationrainfall exceed one number, The area of Beibei in Chongqing possibly occur slope debris flow.The fifth part analyzes the function of vegetation to slope debris flow.The sixth part analyzes the function of human activities to slope debris flow.The seventh part is another point of the article. It studies the possibility of slope debris flowoccurrence. One method which makes use of the precipitation index to study the possibility of slopedebris flow occurrence. Another method which makes use of the formation factor of slope debrisflow to study the possibility of slope debris flow occurrence.The eighth part is conclusion and discussion.
Keywords/Search Tags:slope debris flow, precipitation condition, the possibility of occurrence
PDF Full Text Request
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