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.

• Periodical: Applied Mechanics and Materials (Volume 567)
• Pages: 711-716
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.567.711
• Online since: June 2014
• Authors: Mohd Fozi Ali*, Mohd Adzreel Makatar, Khairi Khalid, Nor Faiza Abd Rahman
• Keywords: Erosion Characteristics, Erosion Induced Slope Failure, Rainfall Characteristics, Slope Characteristics, Structures Characteristics

References

[1] H. M. Online, Tanah runtuh gegar Brinchang, 7 maut, from http: /www. harian-metro-online. com/tanah-runtuh-gegar-brinchang-7-maut, 2011, Accessed on 18 July, (2012).

[2] B. H. Online, Terkini tragedi tanah runtuh rumah anak yatim di Batu 14, Hulu Langat, from http: /harian-hullahup. blogspot. com/2011/05/hulla-tragedi-terkini-tragedi-tanah. html, 2011, Accessed on 18 July, (2012).

[3] Software Technical Report, Slope management and risk tracking system, Slope Engineering Branch, Public Works Department. (2005).

[4] R.P.C. Morgan, Soil erosion, processes and mechanics of erosion, National College of Agricultural Engineering Silsoe, Bedfordshire. p.11, (1980).

[5] T. Bhattacharyya, R. Babu, D. Sakar, C. Mandal, B. L. Dhayani and A. P. Nagar", Soil loss and crop productivity model In humid sub-tropical India", Current Science. Volume 93, No. 10, (2007).

[6] J. C. Fan and M. F. Wu, Effects of soil strength, texture, slope steepness and rainfall intensity on interill erosion of some soils in Taiwan, 10th Intenational Conservation Organization Meeting. Purdue University and the USDA-ARS National Soil Erosion Research Laboratory, (1999).

[7] Z.A. Roslan and M. Mazidah, Establishment of soil erosion scale with regards to soil grading characteristic, 2nd World Engineering Congress, Sarawak, Malaysia, p.235 – 239, (2002).

[8] Z.A. Roslan and H. Shafee, The risk of rainfall erosivity based on ROSE index, International Research Centre on Disaster Prevention (IRCDIP), Universiti Teknologi MARA, (2005).

[9] Z. A. Roslan, Forecasting erosion induced landslide, University Publication Centre (UPENA), UniversitiTeknologi MARA, Shah Alam, (2009).