A rapid loess flowslide triggered by irrigation in China

被引：157

作者：

Zhang, Dexuan ^{[1
]}

Wang, Gonghui ^{[2
]}

Luo, Chunyong ^{[1
]}

Chen, Jun ^{[1
]}

Zhou, Yunxi ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Civil Engn, Shanghai 200030, Peoples R China

[2] Kyoto Univ, Disaster Prevent Res Inst, Kyoto, Japan

来源：

LANDSLIDES | 2009年 / 6卷 / 01期

基金：

中国国家自然科学基金; 日本学术振兴会;

关键词：

Landslide; Loess; Flowslide; Irrigation; Water leakage; Shear strength;

D O I：

10.1007/s10346-008-0135-2

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

A loess landslide occurred in the morning of October 6, 2006, in Gaolou district of Daming town, Hua country, Shaanxi, China. The landslide originated from a valley side slope of the loess 'yuan' (dissected loess plateau), below which many houses are densely located. The displaced materials smashed several houses and killed 12 persons, after traveling down a long but gentle valley channel. Field surveys revealed that the displaced materials were highly fluidized. Because there was no rainfall before this event, the leakage of irrigation water from the canal on the top of the slope may be the reason for the initiation. To investigate the possible mechanisms underlying the initiation and movement of this landslide, laboratory tests on the loess samples from the source area were performed. Some preliminary research results are presented in this report.

引用

页码：55 / 60

页数：6