경사진 사석층의 지지력에 관한 원심모형실험 및 수치해석

• 영문명: Centrifuge Model Experiments and Numerical Analysis for the Bearing Capacity of Sloped Rubble Mound
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 이명욱(Lee Myung Woog) 박병수(Park Byung Soo) 정길수(Jung Gil Soo) 유남재(Yoo Nam Jae)
• 간행물 정보: 『산업기술연구』vol.24, 95~105쪽, 전체 11쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2004.09.30

영문 초록

This paper is an experimental and numerical research works about the effects of the bearing capacity of sloped rubble mound on the density of rubble mound and the position of footing. Centrifuge model tests were performed to investigate the bearing capacity of rubble mound by changing the density of rubble mound and the location of loading in forms of strip loading to simulate the caisson. Materials of rubble mound used in the model tests were crushed rocks having similar value of uniformity coefficient to the value in field. Two different relative densities of 80% and 90% were prepared during tests. The dimens ions of centrifuge model were trapezoidal shape of model mound having the bottom width of mound, 30cm and height of mound, 10cm. Gravity level applied during the centrifuge test was 50G. Surcharge loading in the forms of strip loading was applied on the top of the sloped model mound. Tests were carried out by changing the position of loadi ng. The rigid model footing was located in the center of top of the model rubble mound and the edge of model footing was at the crest of mound. Test results were analyzed by using the limit equilibrium methods proposed by Meyer hof(1957) and Bowles(1982) and the numerical approach with FLAC being available commercially software. For the numerical estimations with FLAC, the rubble mound was simulated with the constitutive relationship of Mohr-Coulomb elasto-plastic model.

목차

Abstract

1. 서론

2. 실험

3. 기초의 극한지지력

4. 수치해석

5. 결과분석

6. 결론

참고문헌

키워드

극한지지력 얕은기초 사석층 원심모형실험 bearing capacity Shallow foundation rubble mound centrifuge model teststress