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http://dx.doi.org/10.14481/jkges.2022.23.3.15

Analysis of Weathering Sensitivity by Swelling of Domestic Highway Sites  

Jang, Seokmyung (Chungbuk headquarters, Korea Expressway Corporation)
Han, Heuisoo (Department of Civil Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of the Korean GEO-environmental Society / v.23, no.3, 2022 , pp. 15-22 More about this Journal
Abstract
This study aims to observe the swelling representative rocks in Korea and to suggest improvements in the use of test methods and prior analysis in relation to the weathering of rocks. The swelling test and analysis were performed on the drilling cores obtained for the ground investigation at the domestic highway construction site. For the method of determining the absorption expansion index of rocks, the method proposed in "Standard Methods for Sample Collection and Specimen Preparation" of ISRM and Korean Rock Engineers Standard Rock Test Method was used. The specimen for the measurement of the expansion displacement was cylindrical with a height of 10 cm and a diameter of 5 cm. The existing swelling analysis method evaluates the sensitivity to weathering by using the maximum expansion displacement, but since the classification by bedrock grade is unclear, it is reasonable to use the rate of change of the expansion displacement according to the immersion time. It is necessary to conduct an experiment to distinguish between weathering and fault deterioration. In addition, long-term weathering prediction technology for each cancer type is needed through the expansion displacement analysis of the chemical weathering stage.
Keywords
Weathering; Swelling; Highway; Slope; Experiment method;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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