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http://dx.doi.org/10.7843/kgs.2007.23.12.13

Estimation of Degree of Weathering in Residual Soil Using Water Content from Fall Cone Test Result  

Son, Young-Hwan (Dept. of Civil & Environmental Engrg., Univ. of Wisconsin-Madison)
Chang, Pyoung-Wuck (Dept. of Rural System Engrg., Seoul National Univ.)
Kim, Seong-Pil (Dept. of Rural System Engrg., Seoul National Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.23, no.12, 2007 , pp. 13-23 More about this Journal
Abstract
Weathered soils appear from the rock and its weathering result. In accordance with the degree of weathering the roch may become soft rock, weathered rock and residual soil. In general, classification method for determining the degree of weathering are performed by chemical method and N-value. But these method have some problems. So, this research is to suggest an appropriate physical method to determine the degree of weathering of weathered soils. A new classification method for determining the degree of weathering is suggested, based upon the results from fall cone test. According to the proposed physical method using fall cone apparatus, the measured values of the samples from the same area show distinctive difference of weathering. For the checking, we selected two areas. As a result, the relationship between CWI and water content according to penetration is expressed as an equation in Ilsan and Incheon area. And it proved to be a good method to determine the degree of weathering.
Keywords
Degree of weathering; Disturbed soil; Chemical Weathering Index(CWI); Fall cone test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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