Semi-Analytical Solution for One-Dimensional Nonlinear Consolidation of Multilayered Soil Considering Self-Weight and Boundary Time Effect

被引：1
作者：
Zong, Mengfan [1 ]
Zhang, Jing [1 ]
Wu, Wenbing [2 ]
Yu, Ziye [3 ]
Zhang, Yi [1 ]
Mei, Guoxiong [4 ]
机构：
[1] Jiangsu Ocean Univ, Sch Civil & Ocean Engn, Lianyungang, Jiangsu, Peoples R China
[2] China Univ Geosci, Fac Engn, Wuhan, Hubei, Peoples R China
[3] China Univ Geosci, Coll Marine Sci & Technol, Wuhan, Hubei, Peoples R China
[4] Zhejiang Univ, Ocean Coll, Zhoushan, Zhejiang, Peoples R China
来源：
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS | 2024年 / 48卷 / 17期
基金：
中国国家自然科学基金;
关键词：
boundary time effect; multilayered soil; one-dimensional nonlinear consolidation; self-weight; semi-analytical solution;
D O I：
10.1002/nag.3839
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The self-weight stress in multilayered soil varies with depth, and traditional consolidation research seldom takes into account the actual distribution of self-weight stress, resulting in inaccurate calculations of soil consolidation and settlement. This paper presents a semi-analytical solution for the one-dimensional nonlinear consolidation of multilayered soil, considering self-weight, time-dependent loading, and boundary time effect. The validity of the proposed solution is confirmed through comparison with existing analytical solutions and finite difference solution. Based on the proposed semi-analytical solution, this study investigates the influence of self-weight, interface parameter, soil properties, and nonlinear parameters on the consolidation characteristics of multilayered soil. The results indicate that factoring in the true distribution of self-weight leads to a faster dissipation rate of excess pore water pressure and larger settlement and settlement rate, compared to not considering self-weight. Both boundary drainage performance and soil nonlinearity have an impact on consolidation. If the boundary drainage capacity is inadequate, the influence of soil nonlinearity on consolidation diminishes.
引用
收藏
页码：4232 / 4243
页数：12
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