A Numerical Analysis of Soil-Pile Systems for Pile Load Tests at a Korean Site

J. Ocean Eng. Technol. 1999;13(1):94-104.

Oh, Se-Boong;Ahn, Tae-Kyong;Choi, Yong-Kyu;

국내 말뚝재하시험에 대한 지반-말뚝계의 수치해석

오세붕;안태경;최용규;

영남대학교 토목공학과;(주)대우엔지니어링;경성대학교 건설환경공학부;

Keywords: Load Transfer, Pile Load Test, Subgrade Reaction Method, Stress Analysis

핵심용어: 하중전이, 말뚝재하시험, 지반반력법, 응력해석

Abstract

In order to evaluate the performance of axially of laterally loaded piles experimentaly, pile load tests can be carried out at the site Otherwise stress analyses or subgrade reaction analyses can solve the problem. In this study, stress analysis using FLAC code and subgrade reaction analyses using load transfer curves recommended by API(1993) were performed consistently on the basis of a result of site investigations, and the result of analyses was compared with the measured. As a result the behavior of pile heads was analyzed accurately for both axially and laterally loaded tests. Furthermore axially transferred loads were calculated appropriately for the measured and axial loads were transferred mainly mainly by the frictional resistance rather than by the tip resistance. Consequently, it can be commented that both analysis methods of soil-pile systems are applicable at teh objective site and that solutions may be more accurate if material properties from the site investigation are more explicit.