IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleStudy on resistance characteristics and magnitude of post-quake debris flows
田密1,2,3; 胡凯衡1,2
Corresponding Author胡凯衡
Source Publication水利学报
Other Abstract

After the Wenchuan earthquake, a great volume of loose material caused by co-seismic land⁃slides mantle on the slopes or in the channels,which in later years served as debris source for rainfall-in⁃duced debris flows. Flood and debris flows would erode the mobile bed violently that is composed by these loose masses,enlarging debris flow scale and making the flow resistance characteristic different from that on the fixed bed. The characteristics of flow resistance and magnitude were examined by analyzing debris-flow events happened after the earthquake. It is found that Darcy-Weisbach resistance coefficient shows a close relationship with sediment discharge and Froude number by regression analysis of the data of 6 events. Moreover,regression analysis of 16 events in Qingping and Beichuan shows that there existed a good power exponent relationship between magnitude,rainfall and catchment area. The research results are useful for debris flow disaster prevention and mitigation.

Keyword汶川地震 泥石流 动床阻力 冲出总量
Indexed ByEI ; 北大中文核心
Accession numberAccession number:20131616220792
Document Type期刊论文
First 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
田密,胡凯衡. 震后泥石流的阻力特性及冲出总量计算[J]. 水利学报,2012,43(增刊2):111-116.
APA 田密,&胡凯衡.(2012).震后泥石流的阻力特性及冲出总量计算.水利学报,43(增刊2),111-116.
MLA 田密,et al."震后泥石流的阻力特性及冲出总量计算".水利学报 43.增刊2(2012):111-116.
Files in This Item:
File Name/Size DocType Version Access License
震后泥石流的阻力特性及冲出总量计算_田密(465KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[田密]'s Articles
[胡凯衡]'s Articles
Baidu academic
Similar articles in Baidu academic
[田密]'s Articles
[胡凯衡]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[田密]'s Articles
[胡凯衡]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 震后泥石流的阻力特性及冲出总量计算_田密.pdf
Format: Adobe PDF
All comments (0)
No comment.

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