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International Journal of Civil Engineering and Technology (IJCIET)
Volume 10, Issue 11, November 2019, pp. 11-18, Article ID: IJCIET_10_11_002
Available online at http://www.iaeme.com/ijciet/issues.asp?JType=IJCIET&VType=10&IType=11
ISSN Print: 0976-6308 and ISSN Online: 0976-6316
© IAEME Publication
DEBRIS FLOW HAZARD ASSESSMENT BASED
ON RESISTIVITY VALUE AND GEOLOGICAL
ANALYSIS IN ABANG MOUNTAIN, GEOPARK
BATUR, BALI
I Nengah Sinarta
Faculty of Engineering and Planning, Civil Engineering Department
Warmadewa University, Indonesia
Putu Ika Wahyuni
Faculty of Engineering and Planning, Civil Engineering Department
Warmadewa University, Indonesia
Putu Aryastana
Faculty of Engineering and Planning, Civil Engineering Department
Warmadewa University, Indonesia
ABSTRACT
A detailed assessment of the landslide-prone area needs to be carried out with a
combined knowledge of soil resistivity and geological analysis. The assessment
method uses resistivity analysis with the Wenner configuration and geological
analysis by observing rock outcrops on the slope. Resistivity rocks value the Abang
Batudinding Village was prone to landslides because there were cavities with fairly
weathered rocks, at depths of 2-3 meters. Terunyan Village the surface part was
andesite rocks with high resistivity, and some consist of weathered rocks with rock at
a depth of 3-3.5 meters. The slope-forming rock, on average of the Andesite Breccia,
has a volume above 60% of weathering rocks or sedimentary rocks. Weathered
Andesite breccias produce intensive cracks in the horizontal direction and are easily
released. The analysis shows the research area has a very high risk of debris flow,
especially when the intensity of rain is high where the soil water level increases, so
that the pore water pressure increases too. The loose soil will be easier to release
debris flow.
Keywords: Debris flow, Andesite Breccia, Geological, Resistivity
Cite this Article: I Nengah Sinarta, Putu Ika Wahyuni, Putu Aryastana, Debris Flood
Hazard Assessment Based on Resistivity Value and Geological Analysis in Abang
Mountain, Geopark Batur, Bali. International Journal of Civil Engineering and
Technology 10(11), 2019, pp. 11-18.
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