- 责任者：Chen Xiaoli (Key Laboratory of Active Tectonics and Volcano ; Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; Yuan Renmao
- 刊名：Seismology and Geology
- 出版年：2013
- 卷期：35(3)
- 关键词：震灾 ; seismic hazard ; 滑坡 ; landslides ; 四川 ; Sichuan Province
- 页码：p.661-670
- 图表：7 illus., 1 table, 19 refs.
- 分类号：1800
- issnNo：ISSN0253-4967
- isbnNo：CN11-2192/P
As a kind of secondary disasters caused by strong earthquakes,earthquake-triggered landslide has drawn much attention in the world because of severe hazards it causes. The 2013 Lushan, China, earthquake triggered lots of landslides and provided an opportunity to test various kinds of methods which have been used in earthquake triggered landslides assessment. Based on the high-resolution sat- ellite images and aerial photos,we preliminarily interpret landslides in the damaged region. It is found that almost all of the landslides took place in the area with seismic intensity above VII. Spatially, the triggered landslides are controlled by the causative faults in their distribution and mainly concentrate around the epicenter. Based on the Newmark＇s method model, critical acceleration ac is used to predict potential landslides. Comparing with the landslides occurrences in the study area,the result of our cal- culation proves that Newmark＇s model is effective in seismic hazards analysis. Also,the landslide af- fected area is estimated by several methods and the difference between them is discussed.