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A Mechanical Properties According to the Compaction Degree on Weathered Granite Soil Using Lightweight Dynamic Cone Penetrometer

경량 동적콘관입시험기를 이용한 화강풍화토의 다짐도에 따른 역학특성

  • Kim, Yeon-Il (Department of Rural & Boisystems Engineering, Chonnam National University) ;
  • Kim, Jin-Young (Department of Rural & Boisystems Engineering, Chonnam National University) ;
  • Shim, Jae-Rok (Department of Rural & Boisystems Engineering, Chonnam National University) ;
  • Choi, Jin (Department of Rural & Boisystems Engineering, Chonnam National University) ;
  • Kang, Kwon-Soo (Department of Civil Engineering, Seonam University) ;
  • Baek, Won-Jin (Department of Rural & Boisystems Engineering, Chonnam National University) ;
  • Lee, Kang-Il (Department of Civil Engineering, Dae-Jin University)
  • Received : 2014.07.31
  • Accepted : 2014.08.28
  • Published : 2014.09.30

Abstract

In this study, the applicability of the lightweight dynamic cone penetrometer in the domestic slope site was investigated using the weathered granite soil sampled form the Namwon slope site. And then, the lightweight dynamic cone penetration tests according to the change in the degree of compaction and water content were performed and it was analyzed with the correlations between the degree of compaction, the void ratio, the degree of saturation and the value of cone resistance. From the laboratory test results, the cone penetration resistance was rapidly increased in the dry side of the optimum moisture content, and it was largely decreased in the wet side of the optimum moisture content. Moreover, when the degree of compaction and the degree of saturation are large, the cone resistance is increased linearly. And a high correlativity was shown between water content, void ratio, the degree of saturation and the cone resistance. From these results, it is judged that the lightweight dynamic cone penetrometer can be applied to the investigation on the site slope.

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