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http://dx.doi.org/10.12814/jkgss.2013.12.3.031

Characteristics Analysis of Mudstone Weathered Soils in the landslide Area using Statistical Technique  

Hwang, Eui-Soon (Graduate Student, Department of Civil Engineering, Joongbu University)
Chung, Dae-Seouk (Department of Civil Engineering, Joongbu University)
Kim, Kyeong-Su (Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources)
Lee, Moon-Se (Research & Development Team, National Forestry Cooperative Federation)
Song, Young-Suk (Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources)
Publication Information
Journal of the Korean Geosynthetics Society / v.12, no.3, 2013 , pp. 31-41 More about this Journal
Abstract
In this study, the properties of mudstone weathered soils related to landslides were analyzed at the area of landslide induced by heavy rainfall in Pohang. The soil tests were carried out to the soils obtained from landslide and non landslide sites, and the soil properties were investigated. The correlation between soil properties and landslides were analyzed using statistical technique, and then the soil factors were extracted from the correlation analysis. The correlation equation which can calculate the coefficient of permeability influenced on landslides was proposed using the soil factors. As the result of analysis, the porosity and unit weight of soils from the landslide area is smaller than those of soils from the non landslide area. The soils with poor grain size distribution and loose unit weight are prone to landslides because the soils have a large void ratio and a low unit weight. The permeability of soils from the landslide area is larger than that of soils from the non landslide area. According to the result of correlation analysis, the effective grain size, the saturated unit weight and silt and clay contents are evaluated as the influence factors. These factors were considered to estimate the coefficient of permeability of mudstone weathered soils.
Keywords
Landslide; Mudstone weathered soil; Soil characteristics; Permeability coefficient; Correlation model;
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Times Cited By KSCI : 2  (Citation Analysis)
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