Influence of permeability on the stability of dual-structure landslide with different deposit-bedding interface morphology: The case of the three Gorges Reservoir area, China

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/120067
Información del item - Informació de l'item - Item information
Title: Influence of permeability on the stability of dual-structure landslide with different deposit-bedding interface morphology: The case of the three Gorges Reservoir area, China
Authors: Luo, Shi-lin | Huang, Da | Peng, Jian-bing | Tomás, Roberto
Research Group/s: Ingeniería del Terreno y sus Estructuras (InTerEs)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: Three Gorges Reservoir | Dual-structure landslide | Conceptual model | Deposit-bedding interface morphology | Permeability
Knowledge Area: Ingeniería del Terreno
Issue Date: 1-Dec-2021
Publisher: Elsevier
Citation: Engineering Geology. 2022, 296: 106480. https://doi.org/10.1016/j.enggeo.2021.106480
Abstract: The construction of the Three Gorges Reservoir (TGR) has considerably increased landslide hazard due to the 30-m annual fluctuating reservoir water level. In this study, the influence of permeability on the stability of dual-structure landslide with different deposit-bedding interface (DBI) morphology were comprehensively investigated. A landslide database including 560 recorded dual-structure landslides was built for the statistical analysis. The DBI morphology, the slope structure and the permeability were classified and presented. The statistical analysis of the DBI morphological parameters indicates that the armchair type (AT) is the most popular in over-dip landslide, the curved type (CT) is very widespread in anaclinal landslide, the stepped type (ST) is the most common DBI morphology in over-dip landslide, and the linear type (LT) could be found widely at the under-dip landslide. Two conceptual models, downslide-locked model and locked model, were proposed according to the change rules of the dip angle of the DBI. The stability for these two conceptual models were analyzed and modeled as well as verified by specific case studies. The numerical results manifest that the permeability and the DBI morphology could pose significant impacts on the stability of the dual-structure landslide. Deepening our understanding of the effect of the fluctuating reservoir water level on the factor of safety (FOS) of the defined conceptual models, which are of paramount importance to improve the design of mitigation countermeasures and, consequently, to reduce fatalities and property losses in the TGR and many other analogous reservoir areas.
Sponsor: This work is supported by the National Natural Science Foundation of China (No: 41972297), Supporting Program of Hundred Promising Innovative Talents in Hebei Provincial Education Office (No. SLRC2019027), and Hebei Provincial Natural Science Foundation (D2021202002). The author Roberto Tomás is supported by the Spanish Ministry of Economy and Competitiveness (MINECO), the State Agency of Research (AEI) and the European Funds for Regional Development (FEDER) under projects TEC2017-85244-C2-1-P.
URI: http://hdl.handle.net/10045/120067
ISSN: 0013-7952 (Print) | 1872-6917 (Online)
DOI: 10.1016/j.enggeo.2021.106480
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2021 Elsevier B.V.
Peer Review: si
Publisher version: https://doi.org/10.1016/j.enggeo.2021.106480
Appears in Collections:INV - INTERES - Artículos de Revistas

Files in This Item:
Files in This Item:
File Description SizeFormat 
ThumbnailLuo_etal_2022_EngGeol_final.pdfVersión final (acceso restringido)11,38 MBAdobe PDFOpen    Request a copy
ThumbnailLuo_etal_2022_EngGeol_preprint.pdfPreprint (acceso abierto)7,08 MBAdobe PDFOpen Preview


Items in RUA are protected by copyright, with all rights reserved, unless otherwise indicated.