LANDSLIDES
Natural Hazards and Disasters
For Teachers and Educators
Ministry of Education and National Institute of Education
Education for Social Cohesion, Disaster Risk Management and Psycho-social Care
Learning to live with
LANDSLIDES
Natural Hazards and Disasters
2006
Sri Lankan-German Development Cooperation
Supported by
The German Federal Ministry for Economic Cooperation and Development and implemented with assistance of the German Technical Cooperation - GTZ
Originally developed by the Asian Disaster Preparedness Centre, Thailand. (2002)
Adapted for Sri Lanka by Kumari M. Weerasinghe
Scientist, Landslide Studies and Services Division
National Building Research Organisation
(Texts)
Anuradha Malalasekara
Lecturer, Department of Linguistic,
University of Kelaniya, Daligama, Kelaniya
(Texts)
Evangeline Ekanayake
GTZ Technical Advisor Psycho-social Care
(Texts on Psycho-social Care)
Susil Jayashantha Perera
(Illustrations)
In cooperation with
Faculty of Science and Technology,
National Institute of Education
2006
FOREWoRD
CONTENTS 1. INTRODUCTION................................................................................... 1 2. LANDSLIDES IN SRI LANKA.............................................................. 2 3. CAUSES OF LANDSLIDES.................................................................. 3
.
3.1 Manmade Causes........................................................................................... 4
3.2 Natural Factors.............................................................................................. 5
3.3 Combination of Factors................................................................................. 6
4. Types of Landslides and Slope Failures........................... 8 5. DIRECT EFFECTS. ................................................................................ 9
.
6. INDIRECT