[1]王品,徐则民.头寨大型高速远程滑坡碎屑流堆积体的粒度组成[J].山地学报,2013,(06):745.
　WANG Pin,XU Zemin.The Grain Size Composition of Touzhai Rockavalanche Deposits[J].Mountain Research,2013,(06):745.
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头寨大型高速远程滑坡碎屑流堆积体的粒度组成()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2013年06期
页码:
745
栏目:
山地灾害
出版日期:
2013-01-01

文章信息/Info

Title:
The Grain Size Composition of Touzhai Rockavalanche Deposits
作者:
王品;徐则民;
1.昆明理工大学地球科学系，云南 昆明 650000；
2. 昆明理工大学土木系，云南 昆明 650500
Author(s):
WANG Pin; XU Zemin
1. Department of Earth Science，Kunming University of Science and Technology，Kunming 650000，China
2. Department of Civil Engineering，Kunming University of Science and Technology，Kunming 650500，China
关键词:
头寨滑坡; 堆积体; 粒度分布; 峨眉山玄武岩
Keywords:
Touzhai landslide; deposit;  grain size distribution; Emeishan basalt
分类号:
P642.22，TU41
文献标志码:
A
摘要:
以头寨滑坡为代表的峨眉山玄武岩质滑坡广泛发育为大型高速远程滑坡碎屑流,危害巨大,而对此类滑坡的堆积体粒度组成还缺乏比较系统的研究。为此,以头寨滑坡为研究对象,通过对滑坡堆积体分别进行现场筛分试验、淋滤块石粒度调查、巨石等效粒径调查和粘土取样分析,结合室内试验,对滑坡堆积体的粒度组成有了一个从大到小全方位的认识:滑坡堆积体自上而下粒径分布规律差别不大,主体分布在-6到-3之间;巨石比例不足1%,推断来自滑源区失稳岩体底部基岩;粘土所占比例更小,却对源岩体岩质劣化有重要的对照意义。
Abstract:
The Emeishan basalt landslide with the landslide in Touzhai of Yunnan,China as a representative is widely developed into a large longdistance and highspeed landslidedebris flow which is dangerous，while grainsize composition of deposit body for such kind of landslide is still lack of systematic study. This paper takes the Touzhai landslide of Zhaotong，Yunnan province，China as study object，combining with the laboratory experiment，through the field sieving experiment，investigation of the grain size of leaching block stones and huge stone and clay sampling analysis，the grainsize composition of deposit body is understood omnibearingly ranging from large to small. The results show that there are little difference in the distribution of grain size of the landslide deposits which mainly range from -6  to -3  from above downward. Based on the hugestones ratio less than 1%，the hugestones can be inferred to be the bottom bedrock of instability rock in slippery source area. The clay counts for the least though，it has important control significance in the degradation to rock quality.

相似文献/References:

[1]陈强,聂德新,李树武,等.澜沧江乌弄龙电站坝前崩塌堆积体发育特征及稳定性评价[J].山地学报,2006,(01):95.

备注/Memo

备注/Memo:
收稿日期(Received date)：2012-09-04；改回日期(Accepted)：2013-01-08。
基金项目(Foundation item)：国家自然科学基金-云南联合基金重点项目(U1033601)和国家自然科学基金资助项目(40572159，40772189)。[The National Natural Science Foundation of China-Yunnan Joint Fund(U1033601) and the National Natural Science Foundation of China(40572159，40772189).]
作者简介（Biography）：王品(1987-)，男，河南邓州人，硕士研究生，主要从事环境地质与灾害地质方面的研究。[Wang Pin(1987-),male, graduate student, majoring in environmental geology and disaster geology research.]E-mail：wangpinwww1005@126.com *通信作者(Corresponding author)：徐则民(1963-)，教授，博士生导师。E-mail：abc5100@188.com
更新日期/Last Update: 1900-01-01