Hydro-mechanical Analysis of Rainfall-Induced Landslides

Most landslides are triggered by rainfall. In previous studies, slope stability is often evaluated based on the infiltration analysis. Hydro-mechanical coupling is significant to rainfall-caused landslide evolution. This book covers theoretical models of unsaturated infiltration, and provides hydro-mechanical models for rainfall-induced landslides. The influences of rainfall patterns, boundary conditions, layered structures, and SWCC hysteresis on the coupled unsaturated infiltration and deformation are discussed. Laboratory testing of rainfall-induced landslides is performed to study the developing process of landslide upon rainfall infiltration. The results provide a better understanding of rainfall-induced landslides.

Provides new perspectives for understanding rainfall-induced landslides Proposes a mathematical model for rainfall infiltration processes Presents a simple method for understanding the unsaturated soil strength decrease

Auteur
Lizhou Wu currently works at the State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology. He received his Ph.D. degree in Geology Engineering from the same university. His research focuses on geotechnical engineering and engineering geology, particularly soil mechanics for unsaturated slopes, rainfall-induced landslides and rock fracture.

Huang Runqiu received Ph. D. degree from Chengdu Geology College. Now he is the director of State Key Laboratory of Geohazard Prevention and Geoenvironmental Protection. His research interests include slope stability and geological disaster. He has published more than 350 academic papers and 8 books.

Xu Li is currently a Professor at the School of Civil Engineering, Beijing Jiaotong University, China. He has received his Ph.D. degree in Civil Engineering from the University of Science and Technology, Hong Kong. His research interests include the theory of numerical manifold method and its application and engineering, the design of geotechnical barriers, and slope stability analysis and slope stabilization. He has published more than 20 academic papers and 2 monographs.

Contenu
Background.- Analytical solution to 1D coupled infiltration and deformation in unsaturated porous media.- Effects of gravity and hysteresis on 1D unsaturated infiltration.- 2D Infiltration in unsaturated porous media.- Physical simulation of rainfall infiltration into unsaturated slope under rainfall.- Slope stability analysis based on coupled approach.