|本期目录/Table of Contents|

[1]马超,胡凯衡,宋国虎,等.汶川地震灾区帽壳子滑坡形成泥石流的过程和特征[J].地球科学与环境学报,2013,35(04):98-103.
　MA Chao,HU Kai-heng,SONG Guo-hu,et al.Processes and Characteristics of Debris Flows Induced by Maoqiaozi Landslide in Wenchuan Earthquake Stricken Area[J].Journal of Earth Sciences and Environment,2013,35(04):98-103.
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汶川地震灾区帽壳子滑坡形成泥石流的过程和特征(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第35卷
期数:
2013年第04期
页码:
98-103
栏目:
水资源与环境
出版日期:
2013-12-15

文章信息/Info

Title:
Processes and Characteristics of Debris Flows Induced by Maoqiaozi Landslide in Wenchuan Earthquake Stricken Area
文章编号:
1672-6561(2013)04-0098-06
作者:
马超; 胡凯衡; 宋国虎; 田密
1. 中国科学院山地灾害与地表过程重点实验室,四川 成都 610041; 2. 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; 3. 中国科学院大学,北京 100049
Author(s):
MA Chao;  HU Kai-heng;  SONG Guo-hu;  TIAN Mi
1. Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China; 2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Resources, Chengdu 610041, Sichuan, China; 3. Universityof Chinese Academy of Sciences, Beijing 100049, China
关键词:
泥石流; 滑坡; 汶川地震; 转化过程; 运动特征; 崩滑; 坡面流
Keywords:
debris flow;  landslide;  Wenchuan Earthquake;  transformation process;  motion feature;  collapse slide;  overland flow
分类号:
P642.2
DOI:
-
文献标志码:
A
摘要:
实地调查了汶川地震灾区北川县帽壳子滑坡转化为坡面泥石流和沟道泥石流的基本特征和形成过程,并利用能量守恒原理和Takahashi泥石流运动模型对其运动特征进行了分析。结果表明:对于强震诱发的滑坡,其层间碎块石土体强度低,滑坡体内部裂隙发育,在强降雨作用下容易转化为泥石流;滑坡转化为坡面泥石流的过程为岩土体沿基岩面下滑→撞击→强碎屑化→流动→快速停积;滑坡转化为沟道泥石流的过程为滑坡体崩滑→弱碎屑化→水流掺混→掏蚀沟道→流动堆积;滑坡转化为坡面泥石流后,起始速度较快,但没有沟道限制和水力作用,因此运动阻力较大,冲出距离远小于沟道泥石流;利用Takahashi泥石流运动模型计算得到的沟道泥石流冲出距离与实际观察值比较吻合。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-01-04
基金项目:中国科学院知识创新工程重要方向项目(KZCX2-YW-JS305);中国科学院/水利部成都山地灾害与环境研究所青年百人团队项目(110900K235)
作者简介:马超(1986-),男,四川盐亭人,工学博士研究生,E-mail:sanguoxumei@163.com。
更新日期/Last Update: 2014-01-20