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Analysis of Influence factors to Compressive and Tensile Strength of Basalt in Cheju Island  

Nam, Jung-Man (Department of Civil and Environmental Engineering, Cheju National University)
Yun, Jung-Mann (Department of Civil Engineering, Ansan College of Technology)
Song, Young-Suk (Geological & Environ. Hazards Division, Korea Inst. of Geoscience and Mineral Res.)
Kim, Jun-Ho (Department of Civil and Environmental Engineering, Cheju National University)
Publication Information
The Journal of Engineering Geology / v.18, no.2, 2008 , pp. 215-225 More about this Journal
Abstract
In order to investigate the influence factors to compressive and tensile strength of basalt in Cheju Island, rock samples of Pyosenri basalt, trachy-basalt and scoria were taken from Seoguipo-Si Seongsan-Eup area, and a series of uniaxial compressive strength test and Brazilian test were carried out. Especially, these tests were performed in consideration of the loading speed, the moisture content in rock sample, and the anisotropy of rock strength. The uniaxial compressive strength was increased gradually as the loading speed rose. The increasing quantity of uniaxial compressive strength had a difference in each rock types. Also, the strength was decreased with increasing the moisture contents in rock sample by pore water. As the result of test considering the anisotropy of rock strength, the compressive strength in condition of failure occurred parallel to stratified layer is decreased about 12-26% more than that in condition of failure occurred inclined to stratified layer.
Keywords
basalt; compressive strength; tensile strength; loading speed; moisture content; strength anisotropy;
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Times Cited By KSCI : 1  (Citation Analysis)
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