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IJSTR >> Volume 7 - Issue 11, November 2018 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



The Prevention Of Landslide Disaster Along The Balikpapan-Samarinda Road In Soeharto Hill Forest Park Area (Taman Hutan Raya Bukit Soeharto)

[Full Text]

 

AUTHOR(S)

Suratmi, Sigit Hardiwinarto, Marlon.I. Aipassa, Sumaryono

 

KEYWORDS

road axis, Soeharto Hill Forest Park Area, rainfall, landslide disaster.

 

ABSTRACT

The occurrence of a landslide disaster is one of the most frequent disasters in Indonesia, including in East Kalimantan on roads connecting Samarinda Balikapapan especially in Bukit Soeharto Forest Highway km 38 Sungai Merdeka district Samboja and km 69 Batuah district Loa Janan, it is necessary to take a research steps to determine the causes of landslide disaster and to know how to tackle the causes of the landslide. Based on the analysis at the location of the research that the land texture in Soeharto Hill Forest Park area is yellow Podzolic soil type, Latosol and Litosol (15%) and Alluvial soil (10%) with parent material in the form of folds of hill and the structure of the soil is clumped and its consistency is flat. The topographic state of the field is bottom to bumpy to the slope of 10-45%.Referring to the general nature of soil chemical physics, most soil types in the Bukit Soeharto Forest Park area have a high degree of erosion sensitivity with very low land productivity, so it is appropriate to be designated as a conservation area. The potential for ground motion on the slope depends on the soil condition and its composition and one of the geological causes of soil movement is rock weathering, because it is in high intensity of rainfall and sun irradiation makes the rock weathering process more intensive. Rocks that often weathering will cause a decrease in rock strength that ultimately forms a layer of weak rock and thick residue soil. If this happens on the slopes it will be critical. The location of the study is a hilly area that forms a slope of land with an average slope of 25 to 75 degrees and is composed by a pile of soil formed by physical and chemical weathering on rocks or more compact soil has the potential to move or landslides. The cause of a landslide disaster along the Balikpapan-Samarinda road in Soeharto Hill Forest Park is due to high rainfall and deforested land cover deforestation.

 

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