An Experimental Study on the Hydromechanical Behaviours of the Evolution of Postearthquake Landslide Deposits
Joint Authors
Cai, Huan
Yang, Zong-Ji
Wang, Li-Yong
Lei, Xiao-Qin
Fu, Xiao-Long
Liu, Shi-Hao
Qiao, Jian-Ping
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-03
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
In this study, a series of experiments of the full-scale physical model was employed to investigate the hydromechanical behaviours of the postearthquake landslide evolution, in forms of rill erosion and shallow headward failure on the rill bank slopes under unsaturated conditions.
Soil-water characteristic curves (SWCC) were established using the Brooks-Corey (BC) and van Genuchten (VG) models.
The stability of the shallow failure was then analyzed via a one-dimensional and unsaturated stability analysis model of the infinite slope.
This measurement revealed that the preferential flow and the matrix flow coexisted when infiltration occurred and the VG model performs better in fitting the SWCC than the BC model.
Consistent feedback between stability calculations and experimental observations enables the analysis of mechanisms of rill erosion and slope failure of postseismic landslide under the impact of preferential flow.
Furthermore, the seepage-induced internal erosion phenomenon was observed in the experiment.
This work thus provides a new perspective on the triggering mechanisms of debris flow during the postseismic period.
American Psychological Association (APA)
Cai, Huan& Yang, Zong-Ji& Wang, Li-Yong& Lei, Xiao-Qin& Fu, Xiao-Long& Liu, Shi-Hao…[et al.]. 2019. An Experimental Study on the Hydromechanical Behaviours of the Evolution of Postearthquake Landslide Deposits. Geofluids،Vol. 2019, no. 2019, pp.1-18.
https://search.emarefa.net/detail/BIM-1152834
Modern Language Association (MLA)
Cai, Huan…[et al.]. An Experimental Study on the Hydromechanical Behaviours of the Evolution of Postearthquake Landslide Deposits. Geofluids No. 2019 (2019), pp.1-18.
https://search.emarefa.net/detail/BIM-1152834
American Medical Association (AMA)
Cai, Huan& Yang, Zong-Ji& Wang, Li-Yong& Lei, Xiao-Qin& Fu, Xiao-Long& Liu, Shi-Hao…[et al.]. An Experimental Study on the Hydromechanical Behaviours of the Evolution of Postearthquake Landslide Deposits. Geofluids. 2019. Vol. 2019, no. 2019, pp.1-18.
https://search.emarefa.net/detail/BIM-1152834
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1152834