Coupling a 1D dual-permeability model with an infinite slope stability approach to quantify the influence of preferential flow on slope stability
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10334133" target="_blank" >RIV/00216208:11310/16:10334133 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.proeps.2016.10.014" target="_blank" >http://dx.doi.org/10.1016/j.proeps.2016.10.014</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.proeps.2016.10.014" target="_blank" >10.1016/j.proeps.2016.10.014</a>
Alternative languages
Result language
angličtina
Original language name
Coupling a 1D dual-permeability model with an infinite slope stability approach to quantify the influence of preferential flow on slope stability
Original language description
In this study, a 1D hydro-mechanical model was developed by coupling a dual-permeability model with an infinite slope stability approach to investigate the influence of preferential flow on pressure propagation and slope stability. The dual-permeability model used two modified Darcy-Richards equations to simultaneously simulate the matrix flow and preferential flow in a slope. The simulated pressure head was sequentially coupled with the soil mechanics model. The newly-developed numerical model was codified with the Python programming language, and benchmarked against the HYDRUS-1D software. The benchmark example showedthat the proposed model is able to simulate the non-equilibrium phenomenon in a heterogeneous soil. We further implemented the model to conduct a synthetic experiment designing a slope with heterogeneous soil overlying an impermeable bedrock as a combined analysis of hydrology and slope stability, the results shows that the occurrence of preferential flow can reducing the time and rainfall amount required for slope failure. The proposed model provides a relatively simple and straightforward way to quantify the effect of preferential flow on the pressure propagation and landslide-triggering in heterogeneous hillslope. (C) 2016 The Authors. Published by Elsevier B.V.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
DE - Earth magnetism, geodesy, geography
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.
Data specific for result type
Article name in the collection
Procedia Earth and Planetary Science
ISBN
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ISSN
1878-5220
e-ISSN
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Number of pages
9
Pages from-to
128-136
Publisher name
ELSEVIER SCIENCE BV, SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Place of publication
Amsterdam
Event location
Naples
Event date
Nov 23, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000387554300014