Browse > Article
http://dx.doi.org/10.7843/kgs.2007.23.12.5

A Study of Field Test on Bearing Capacity Increase Effect of Single Stone Column  

Choi, Yong-Kyu (Dept. of Civil & Environmental Engrg., Kyungsung Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.23, no.12, 2007 , pp. 5-11 More about this Journal
Abstract
Among soft ground improvement methods by using granular material, the sand compaction pile method has been widely utilized in Korea, but, as a result of shortage and increase of unit price of sand, a necessity of an alternative method has been required. In this study, a series of in-situ static load tests for crushed-stone compaction piles were performed. Pile diameter was fixed to 700mm and areas of loading plates were changed. The static load tests were performed for area replacement ratios of 20, 30 and 40% respectively. Based on the test results, bearing capacity of single crushed-stone compaction pile was estimated. It showed that the settlement decreases as the replacement ratio increases. Also, a yielding capacity equation of the crushed-stone compaction pile considering replacement ratio was suggested.
Keywords
Crushed-stone compaction piles; Replacement ratio; Settlement; Static load test; Yielding capacity equation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김홍택,고용일,강인규,김진홍 (1997), 'Granular Group Pile의 팽창파괴에 대한 극한지지력의 평가', 한국지반공학회 가을학술발표희 논문집, pp.73-80
2 이민희 (2004),쇄석다짐말뚝공법의 하중지지거동 및 응력분배특성에 관한 연구, 박사학위논문,부산대학교, pp.141-142
3 해양수산부 (2002),대수심 방파제 및 연약지반 관련기술(V),pp.9
4 Housel, W. S. (1929), A Practical Method for the selection of Foundations Based on Fundamental Research in Soil Mechanics, Research Bulletin No. 13, University of Michigan, Ann Arbor
5 최용규,이민희,황근배,정성민 (2003),'저소음 저진동 쇄석다짐 말뚝의 현장시험연구' 한국지반공학회 기초기술위원회,2003년 기초기술 학술발표회, pp.155-164
6 경성대학교 지반공학연구실 (2003), 저소음 저진동 쇄석다짐말뚝 공법에 대한 현장시험시공 및 정재하시험 연구용역 보고서, KSU/ GT-03-02, 한국지반환경공학회
7 Hu, W., Wood, D.M., and Stewart, W. (1997), 'Ground Improvement Using Stone Column Foundation: Results of Model Test', Int, Conference on Ground Improvement Techniques, pp.246 -256
8 Hughes, J. M. O. and Withers, N. J. (1974), 'Reinforcing of Soft Cohesive Soils with Stone Columns', Ground Engineering, Vol.7, No.3, pp.42-49