Erosion Assessment of Slope Failure Tragedies; A Case Study in Malaysia

Abstract

Slope Failure is a serious geologic hazard in many countries in the world including Malaysia. In this country, most cases of the tragedies involved a hillside areas and cause of deaths, injuries and property damages. There are many factors of slope failure which is related to erosion such as slope characteristics, erosion and rainfall characteristics, and structure characteristics. The paper was focused on producing a slope hazard category at Sg. Ruil, Cameron Highland and Hidayah Madrasah Al-Taqwa Orphanage, Hulu Langat since both locations were experiencing the slope failures in 2011. The task involved with the collection of the historical data, soil sampling and laboratory testing. The ROM Scale was calculated of 15.62 and 8.23 at Sg. Ruil, Cameron Highland and Hulu Langat, respectively. While, in that order the ROSE Index was calculating to be 329.6 and 317.8 ton.m/ha.hr. The study found that about 54% and 39% of the slope hazard parameters at Sg Ruil, Cameron Highland and Hulu Langat, respectively were categorized under critical condition. This finding is very useful and recommended to be one of a management tools to be considered for future development at the study area.