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2018 | Book

Introduction Read chapter Read first chapter

Earthquake-Induced Landslides

Initiation and run-out analysis by considering vertical seismic loading, tension failure and the trampoline effect

Author: Yingbin Zhang

Publisher: Springer Singapore

Book Series : Springer Natural Hazards

Part of: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik" , Springer Professional "Wirtschaft"

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About this book

This book sheds new light on improved methods for the study of the initiation and run-out of earthquake-induced landslides. It includes an initiation study method that considers tension-shear failure mechanism; an improved, rigorous, dynamic sliding-block method based on dynamic critical acceleration; and a run-out analysis of earthquake-induced landslides that takes account of the trampoline effect, all of which add to the accuracy and accessibility of landslide study. The book includes abundant illustrations, figures and tables, making it a valuable resource for those looking for practical landslide research tools.

Table of Contents

Frontmatter
Chapter 1. Introduction
Abstract
This chapter introduces (1) the study background, (2) two main issues in the study of landslides, namely slope stability and landslide movement behaviors, (3) the scope and objectives of this study, and (4) the organization of the monograph.
Yingbin Zhang
Chapter 2. Review of Studies on Earthquake-Induced Landslides
Abstract
This chapter reviews two aspects of existing studies on earthquake-induced landslides: slope stability analysis and landslide movement simulation. The merits and demerits of each method are stated.
Yingbin Zhang
Chapter 3. Seismic Slope Stability Analysis by Considering Tension Crack
Abstract
This chapter proposes an approach for how to consider tension failure in addition to shear failure in widely used FLAC3D, a finite difference method, so that stability analysis can also be carried out for a slope with a complex slip surface. It is shown that the safety factors estimated using the numerical methods are almost the same comparing to an analytical method for a homogeneous slope. Additionally, it is shown by a large number of analysis examples that the effect of tension failure on slope stability is significant and the safety factor will be incorrect if tensile failure is ignored in the case of seismic loading.
Yingbin Zhang
Chapter 4. Run-Out Analysis of Earthquake-Induced Landslides
Abstract
This chapter presents a long run-out model based on the so-called earthquake-induced trampoline effect and develops a practical numerical simulation program for estimating landslide movement behaviors. The multiple acceleration model (MAM) is derived from mechanism analysis of the earthquake-induced trampoline effect. The results show that the proposed new long run-out model is reasonable and applicable.
Yingbin Zhang
Chapter 5. Extension of Discontinuous Deformation Analysis and Application in Run-Out Analysis of Earthquake-Induced Landslides
Abstract
This chapter extends the original discontinuous deformation analysis (DDA). A practical numerical simulation program is developed by incorporating the MAM into the extended DDA. After an extreme ground movement with the peak ground acceleration (PGA) of 4000 gal is successfully reproduced, some large-scale landslides induced by the 2008 Sichuan Earthquake are analyzed in practical numerical simulations. The results show that the movement behaviors of earthquake-induced landslides can be analyzed using the numerical simulation program.
Yingbin Zhang
Chapter 6. A Case Study of Earthquake-Induced Landslide
Abstract
This chapter presents a case study to verify the proposed new methods from slope stability analysis to landslide run-out analysis. The Daguangbao landslide, the largest scale landslide induced by the 2008 Sichuan earthquake, is analyzed using a numerical simulation program DDA as well as FLAC3D. The results show that the vertical component of seismic loading may play an important role in both stability analysis and run-out analysis, as larger tension failure and trampoline effects may be induced by the vertical seismic force, which has generally been ignored up to now.
Yingbin Zhang
Chapter 7. Conclusions and Future Studies
Abstract
This chapter summarizes and concludes the results and achievements of the study. Problems are also highlighted for future studies.
Yingbin Zhang
Backmatter
Metadata
Title
Earthquake-Induced Landslides
Author
Yingbin Zhang
Copyright Year
2018
Publisher
Springer Singapore
Electronic ISBN
978-981-10-2935-6
Print ISBN
978-981-10-2934-9
DOI
https://doi.org/10.1007/978-981-10-2935-6