IMHE OpenIR  > 山地灾害与地表过程重点实验室
2000年易贡乡扎木弄沟滑坡型泥石流主控因素分析
Alternative TitleAnalysis of main factors for landslide-triggered debris flow in Zhamunong gully on April 9th,2000
李俊1; 陈宁生2; 刘美2,3; 张勇2,3; 向龙4; 高云建2,3
2018
Source Publication南水北调与水利科技
ISSN1672-1683
Volume16Issue:6Pages:187-193
SubtypeArticle
Contribution Rank2
Abstract为进一步查明2000年4月9日扎木弄沟滑坡型泥石流的成因,有必要分析内外动力条件对该次滑坡型泥石流的影响。基于1950-2000年的地震活动和气温资料,以及2000年3月-4月的降雨资料,分析地震活动、冻融循环和干湿循环与2000年滑坡型泥石流的时空耦合关系。结合花岗岩岩体结构特征,分析内外动力条件对2000年滑坡型泥石流的影响机制。研究结果包括两方面内容:(1)极端的冻融循环、干湿循环和地震活动是2000年滑坡型泥石流的主控因素,其中灾前Ms4.8的地震是2000年滑坡型泥石流形成的直接诱发因素。(2)长期的地震活动、冻融循环和干湿循环增加了向南倾的流域源头花岗岩岩体的脆弱性,也增加了流域源头岩体地表裂隙,受后续降水和冰雪融水渗流的影响,流域源头岩体饱水强度衰竭,在4.8级地震诱发作用下,BH01崩滑体发生崩滑,2000年滑坡型泥石流发生。
Other AbstractThe landslide-triggered debris flow that occurred on April 9th,2000(2000LTDF)in Zhamunong gully had a volume of 3*10~8 m~3.We studied the effects of internal and external dynamic conditions on the cause of the 2000LTDF.Based on the earthquake data and temperature data from 1995to 2000and rainfall data from March to April 2000,we analyzed the spatiotemporal coupling relationship of the 2000LTDF with seismicity,freeze-thaw cycle,and dry-wet cycle.Based on the structural characteristics of granite rock,we analyzed the mechanism of internal and external dynamic conditions on the cause of the 2000 LTDF.The results included two aspects.Firstly,the main factors of the 2000LTDF were long-term freeze-thaw cycle,dry-wet cycle,and seismicity.Earthquake of Ms 4.8was the direct inducing factor of the 2000LTDF.Secondly,the long-term effect of seismicity,freeze-thaw cycle,and dry-wet cycle increased the vulnerability as well as the surface fracture of BH01granite rock mass.Due to the influence of the subsequent seepage of rain and melt water,the strength of granite rock mass was exhausted. Under the effect of the Ms 4.8earthquake,the BH01landslide occurred in 2000and triggered the debris flow.
Keyword滑坡型泥石流 内外动力条件 岩体结构特征 耦合关系
DOI10.13476/j.cnki.nsbdqk.2018.0170
Indexed ByCSCD
Language中文
CSCD IDCSCD:6402123
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26199
Collection山地灾害与地表过程重点实验室
Corresponding Author陈宁生
Affiliation1.四川理工学院土木工程学院;
2.中国科学院水利部成都山地灾害与环境研究所山地灾害与地表过程重点实验室;
3.中国科学院大学;
4.成都理工大学地质灾害防治与地质环境保护国家重点实验室
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
李俊,陈宁生,刘美,等. 2000年易贡乡扎木弄沟滑坡型泥石流主控因素分析[J]. 南水北调与水利科技,2018,16(6):187-193.
APA 李俊,陈宁生,刘美,张勇,向龙,&高云建.(2018).2000年易贡乡扎木弄沟滑坡型泥石流主控因素分析.南水北调与水利科技,16(6),187-193.
MLA 李俊,et al."2000年易贡乡扎木弄沟滑坡型泥石流主控因素分析".南水北调与水利科技 16.6(2018):187-193.
Files in This Item:
File Name/Size DocType Version Access License
2000年易贡乡扎木弄沟滑坡型泥石流主控(3377KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[李俊]'s Articles
[陈宁生]'s Articles
[刘美]'s Articles
Baidu academic
Similar articles in Baidu academic
[李俊]'s Articles
[陈宁生]'s Articles
[刘美]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[李俊]'s Articles
[陈宁生]'s Articles
[刘美]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2000年易贡乡扎木弄沟滑坡型泥石流主控因素分析_李俊.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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