IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleEvaluation of Debris Flow Risk in Worst-hit Area of Wenchuan Earthquake Based on Increase Coefficient
沈兴菊1; 张金山2,3; 王士革2,3; 谢洪2,3; 魏军林4
Source Publication水土保持通报
Contribution Rank2
Other AbstractWenchuan Earthquake not only induced a large amount of collapses and landslides immediately, but also reduced the strength of rock and soil mass in drainage basin, which makes them to be eroded more easily,so that abundant solid matter is provided for the formation of debris flows. The occurrence of debris flow is frequent in the disaster area after the earthquake and great losses have been caused. Evaluation on the risk degree of debris flow ditches is a necessary condition for post-disaster reconstruction. Three important parameters,i.e., increment of solid matter, seismic intensity, and scale of barrier dam, are selected and evaluation method on increase coefficient of debris flow risk degree after earthquake is put forward based on designed debris flow. In this method, increase of debris flow risk degree is expressed by the ratio of added volume of solid matter to gross obtruding matter in a debris flow, seismic intensity multiplying the ratio, and time(hour)needed to drain water body in barrier dam with P50% flux of the valley. By the validation of calculation for 9 typical debris flow ditches in the disaster area, the increase of debris flow risk degree in the May 12th disaster area after earthquake can be assessed by the new method, rapidly and precisely
Keyword地震灾区 泥石流 危险度 增加系数
Indexed ByCSCD
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author沈兴菊
Recommended Citation
GB/T 7714
沈兴菊,张金山,王士革,等. 5·12地震后灾区泥石流危险度增加系数评价[J]. 水土保持通报,2010,30(3):96-100.
APA 沈兴菊,张金山,王士革,谢洪,&魏军林.(2010).5·12地震后灾区泥石流危险度增加系数评价.水土保持通报,30(3),96-100.
MLA 沈兴菊,et al."5·12地震后灾区泥石流危险度增加系数评价".水土保持通报 30.3(2010):96-100.
Files in This Item:
File Name/Size DocType Version Access License
5_12地震后灾区泥石流危险度增加系数评(491KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[沈兴菊]'s Articles
[张金山]'s Articles
[王士革]'s Articles
Baidu academic
Similar articles in Baidu academic
[沈兴菊]'s Articles
[张金山]'s Articles
[王士革]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[沈兴菊]'s Articles
[张金山]'s Articles
[王士革]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 5_12地震后灾区泥石流危险度增加系数评价_沈兴菊.pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.