Design charts for consolidation settlement of marine clays using finite strain consolidation theory

IF 2.5 3区 工程技术 Q2 ENGINEERING, CIVIL
Sanghyun Jun, Jong-Ho Lee, Byung-Soo Park, H. Kwon
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引用次数: 0

Abstract

In this study, design charts for estimating consolidation settlement are proposed according to finite strain consolidation theory using a nonlinear constitutive relationship equation. Results of parametric sensitivity analysis shows that the final settlement, initial height, and initial void ratio exerted the greatest effect, and the coefficients of the void ratio–effective-stress. Proposed design charts were analyzed for three regions using a representative constitutive relationship equation that enables major dredged-reclaimed construction sites in Korea. The regional design charts can be calculated accurately for the final settlement because it is applied directly to the numerical analysis results, except for reading errors. A general design chart applicable to all marine clays is proposed through correlation analysis of the main parameters. A final self-weight consolidation settlement with various initial void ratios and initial height conditions should be estimated easily using the general design chart and constitutive relationship. The estimated final settlement using the general design chart is similar to the results of numerical analysis obtained using finite strain consolidation theory. Under an overburden pressure condition, design charts for estimating consolidation settlement are proposed for three regions in Korea.
用有限应变固结理论设计海相粘土固结沉降图
本文根据有限应变固结理论,利用非线性本构关系方程,提出了固结沉降估计的设计图表。参数敏感性分析结果表明,最终沉降、初始高度和初始空隙比对土体的影响最大,空隙比-有效应力系数对土体的影响最大。使用具有代表性的本构关系方程分析了三个地区的拟议设计图,该方程使韩国主要的疏浚填海建筑工地成为可能。区域设计图直接应用于数值分析结果,除读取误差外,可准确计算出最终沉降。通过对主要参数的相关性分析,提出了适用于所有海相粘土的通用设计简图。利用一般设计图和本构关系,可以很容易地估计出不同初始空隙比和初始高度条件下的最终自重固结沉降。采用一般设计原理计算的最终沉降与采用有限应变固结理论计算的结果基本一致。在覆盖层压力条件下,提出了韩国三个地区固结沉降估算的设计图。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Geomechanics and Engineering
Geomechanics and Engineering ENGINEERING, CIVIL-ENGINEERING, GEOLOGICAL
CiteScore
5.20
自引率
25.00%
发文量
0
审稿时长
>12 weeks
期刊介绍: The Geomechanics and Engineering aims at opening an easy access to the valuable source of information and providing an excellent publication channel for the global community of researchers in the geomechanics and its applications. Typical subjects covered by the journal include: - Analytical, computational, and experimental multiscale and interaction mechanics- Computational and Theoretical Geomechnics- Foundations- Tunneling- Earth Structures- Site Characterization- Soil-Structure Interactions
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