Study on the Formation Mechanism of Xijiawan Loess LandslideInduced by Earthquake
WANG Ming-xuan
NI Wan-kui
Abstract：The Xijiawan landslide ,a typical loess landslide triggered by HaiYuan Earthquake in 1920 loca-ted in XiJi county was investigated in this paper .In order to clarify the formation mechanism of Xijiawan landslide ,a series of tests were conducted on the loess soils collected from the main body of slope and sur-face of rupture in Xijiawan landslide ,the possibility of seismic subsidence and liquefaction potential were analyzed ,and the works of stability analysis and numerical simulation were done .The results show that the formation mechanism of landslide is the complex of seismic subsidence –liquefaction .When the earth-quake happened ,the destroy of seismic subsidence occurred on the upper soil of slope .Meanwhile ,the saturated loess at the vicinity of lower mudstone built up loess liquefaction instantaneously .
Keywords：landslide induced by earthquakefomation mechanismseismic subsidence of loessliquefac-tion of loess
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 54-58 )