Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)

Korean Society of Ocean Engineers (한국해양공학회)
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A Study on the Bearing Capacity of Rammed Aggregate Pier as the Intermediate Foundations

중간기초개념으로서 짧은 쇄석다짐말뚝의 지지력 특성에 관한 연구

  • CHUN BYUNG-SIK (Engineering College, Department of Civil Engineering, Hanyang University) ;
  • KIM KYUNG-MIN (Engineering College, Department of Civil Engineering, Hanyang University) ;
  • KIM JUN-HO (Graduate School, Department of Civil Engineering, Hanyang University)
  • 천병식 (한양대학교 공과대학 토목공학과) ;
  • 김경민 (한양대학교 공과대학 토목공학과) ;
  • 김준호 (한양대학교 대학원 토목공학과)
  • Published : 2004.11.01
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Abstract

To secure stability and availability of Rammed Aggregate Pier method as the foundation of a structure, the bearing capacity and failure behavior characteristics was studied through soil laboratory tests in a model ground. In this study, soil laboratory tests use carried out to find the applicability of RAP method as the foundation of a structure. And bearing capacity and the failure mechanism of RAP method was studied according to relative density($60\%,\;70\%,\;90\%$), diameter(45mm, 60mm, 70mm) of each pier ana depth(5cm, l0cm, 15cm, 20cm, 25cm, 30cm). Earth pressure cell is set up approach RAP and 1.0D space at RAP center. Bearing acpacity and the failure mechanism of RAP is investigated by load test As a result, bulging failure was happened in $5\~10cm\;(1.0D\~2.00)$ depth which the maximum lateral earth pressure is acting. Especially, diameter changing of RAP are in inverse proportion to the relative density and the lateral stress is very much influenced by the lateral earth pressure in every layer and tends to decrease according to depth.

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