모래다짐말뚝과 널말뚝으로 처리된 연약점토지반의 거동

• 영문명: Behavior of Soft Ground Treated with Sand Compaction Piles and Sheet Piles
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 유남재(Yoo Nam Jae) 정길수(Jeong Gil Soo) 박병수(Park Byung Soo) 김경수(Kim Kyung Soo)
• 간행물 정보: 『산업기술연구』vol.26, 93~99쪽, 전체 7쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2006.09.30

영문 초록

Centrifuge model experiments were performed to investigate the confining effects of the sheet piles, installed to the sides of soft clay ground treated with sand compaction piles, on the bearing capacity and concentration ratio of composite ground. For the given g-level in the centrifuge model tests, replacement ratio of SCP and the width of surcharge loads on the surface of ground with SCP, the confining effects of installing the sheet piles on the edges of SCP ground on the bearing capacity, change of stress concentration ratio and failure mechanism were investigated. Kaolin, one of typical clay mineral, and Jumunjin standard sand were used as a soft clay ground and sand compaction pile irrespectively. As results of experiments, lateral confining effect by inserting the model sheet piles fixed to the loading plate was observed. For the strip surcharge loading condition, the yielding stress intensity in the form of the strip surcharge loads tends to increase with increasing the embedded depth of sheet piles. The stress concentration ratio was found not to be influenced consistently with the embedded depth of sheet piles whereas the effect of stress intensity on stress concentration ratio shows the general trend that values of stress concentration ratio are relatively high at the initial stage of loading and tend to decrease and converge to the certain values. For the failure mechanism in the case of reinforced with sheet piles, displacement behavior related to the punching failure, settlement right beneath the loading plate occurred since the soil was confined with sheet piles, was observed.

목차

Abstract

1. 서론

2. 실내모형실험

3. 결과 분석

4. 결론

참고문헌

키워드

원심모형실험 모래다짐말뚝 널말뚝 Centrifuge moel experiment Sand compaction pile Sheet pile