자중압밀지반에 대한 침하예측기법의 적용성

• 영문명: Applicability of settlement prediction methods to selfweight consolidated ground
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 전상현(Jun Sang Hyun) 전진용(Jeon Jin Yong) 유남재(Yoo Nam Jae)
• 간행물 정보: 『산업기술연구』vol.28, 91~99쪽, 전체 9쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2008.09.30

영문 초록

Applicability of existing methods of predicting consolidation settlement was assessed by analyzing results of centrifuge tests modelling self-weight consolidation of soft marine clay. From extensive literature review about self-weight consolidation of soft marine clays located in southern coast in Korea, constitutive relationships of void ratio-effective stress-permeability and typical self-weight consolidation curves with time were obtained by centrifuge model experiments. For the condition of surcharge loading, exact solution of consolidation settlement curve was obtained by Terzaghi’s consolidation theory and was compared with the results predicted by currently available methods such as Hyperbolic method, Asaoka’s method, Hoshino’s method and √S method. All methods were found to have their own inherent error to predict final consolidation settlement. From results of analyzing the self-weight consolidation with time by using those methods, Asaoka’s method predicted the best. Hyperbolic method predicted relatively well in error range of 2~24% for the case of showing the linearity in the relationship between T vs T/S in the stage of consolidation degree of 60~90%. For the case of relation curve of T vs T/S² showing the lineality after the middle stage, error range from Hoshino method was close to those from Hyperbolic method. However, Hoshino method is not able to predict the final settlement in the case of relation curve of T vs T/S2 being horizontal. For the given data about self-weight consolidation after the middle stage, relation curve of T vs T/S from √S method shows the better linearity than that of T vs T/√S from Hyperbolic method.

목차

Abstract

1. 서론

2. 이론적 배경

3. 자중압밀실험 자료 분석

4. 침하예측기법 적용 분석

5. 결론

참고문헌

키워드

침하예측기법 자중압밀 수치해석 원심모형실험 Settlement Prediction Methods Self weight Consolidation Numerical Analysis Centrifuge Model Experiment