자갈층 지반에서의 대구경 강관말뚝의 관입성에 관한 연구 = A Study on the Penetrability of Steel Pipe Pile through a Thick Gravel Layer

다국어 초록 (Multilingual Abstract)

This study focuses on the penetrability when driving a steel pile with a large diameter through a thick gravel layer by a oil pressure hammer To this end, a field testing was performed in a construction site and its results were compared with those of the existing dynamic analysis. Analyzed by existing method, it turned out to be impossible to drive a pile through the thick gravel layer. On the other hand, in the testing site, the pile was driven successfully and located at the top of a weathered rock layer.
Therefore, based on the field testing results, penetrability was analysed in terms of the variation of input parameters for the existing dynamic analysis. In this study, proper input parameters of dynamic analysis are suggested for similar geological conditions to this construction site so that error can be avoided in designing a construction method in future.

목차 (Table of Contents)

• 1.서론
• 2.이론적 배경
• 2.1 말뚝의 동적해석 및 프로그램
• 2.2 동적해석에 영향을 주는 제요소들
• 3.현장개요
• 3.1 현장위치 및 개황
• 3.2 지반조건
• 3.3 말뚝제원 및 관입기준
• 3.4 설계하중 및 장비제원
• 3.5.시험시공
• 4.동적해석 및 시험시공결과의 비교 고찰
• 4.1 기존 해석방법과 시험시공결과
• 4.2 변경 해석결과 및 분석
• 5.결론