文献类型：期刊文献

英文题名：Model testing of the spatial-temporal evolution of a landslide failure

作者：Ma, Junwei[1,2,3];Tang, Huiming[1,3];Hu, Xinli[3];Bobet, Antonio[2];Yong, Rui[4];Eldin, Mutasim A. M. Ez[3]

机构：[1]China Univ Geosci, Three Gorges Res Ctr Geohazards, Minist Educ, Wuhan 430074, Hubei, Peoples R China;[2]Purdue Univ, Sch Civil Engn, W Lafayette, IN 47907 USA;[3]China Univ Geosci, Fac Engn, Wuhan 430074, Hubei, Peoples R China;[4]Shaoxing Univ, Shaoxing 312000, Zhejiang, Peoples R China

年份：2017

卷号：76

期号：1

起止页码：323

外文期刊名：BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT

收录：SCI-EXPANDED(收录号：WOS:000394165200026)、、EI(收录号：20161702300804)、Scopus(收录号：2-s2.0-84964342318)、WOS

基金：Junwei Ma is grateful to the China Scholarship Council for providing a scholarship for this research, which was conducted while he served as a Visiting Research Scholar at Purdue University. This study was financially supported by the National Basic Research Program "973" Project of the Ministry of Science and the Technology of the People's Republic of China (2011CB710604 & 2011CB710606), the Key National Natural Science Foundation of China (41230637), National Natural Science Foundation of China (41572279, 41272305 and 41102195), China Postdoctoral Science Foundation (Grant Nos. 2012M521500 and 2014T70758), and Hubei Provincial Natural Science Foundation of China (Grant No. 2014CFB901). All support is gratefully acknowledged.

语种：英文

外文关键词：Landslide model test; Spatial-temporal evolution; Deformation; Lateral soil pressure; Surface temperature

外文摘要：This paper outlines the spatial-temporal evolution of a landslide. A multiple monitoring system that consists of a three-dimensional (3D) laser scanner, a particle image velocimeter (PIV), earth pressure cells (PCs), and a thermal infrared (TIR) imager were designed and employed for a 1 g landslide model case study. The displacement, velocity, lateral earth pressure and surface temperature were recorded during the evolution of a landslide. Four stages of evolution were identified using the measured displacements: the initial stage, the uniform stage, the accelerated stage and the failure stage. The deformation, lateral earth pressure and surface temperature of a landslide were monitored during each stage. The distribution of the lateral force with depth varied significantly during movement, and the depth of the maximum soil pressure increased with movement. The surface temperature of the moving mass was significantly higher than the surface temperature of the nonmoving mass. The average change in surface temperature showed a significant increase in surface temperature followed by a decrease in surface temperature prior to failure. This study provides procedures and solutions for landslide monitoring, interpreting landslide initiation and detecting landslides.