动力荷载作用下非饱和土一维固结的解析解

IF 0.6 4区工程技术 Q4 MECHANICS

Journal of Theoretical and Applied Mechanics Pub Date : 2022-12-12 DOI:10.15632/jtam-pl/157084

Zhi-yi Liu, Yu Song, Feng-xi Zhou, Li-ye Wang

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引用次数: 0

摘要

本文首先以多孔弹性介质理论为基础，结合非饱和土的有效应力原理，建立了描述非饱和土固结的控制方程。其次，利用拉普拉斯积分变换，得到了任意动荷载下的解析表达式。最后，通过特定边界条件下的数值算例分析，探讨了谐波荷载作用下非饱和土的一维固结特性，以及激励频率、初始饱和度等因素对非饱和土固结特性的影响。

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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Analytical solution for one-dimensional consolidation of unsaturated soils under dynamic load

Firstly, in this paper, based on the theory of the porous elastic medium and combined with the eﬀective stress principle of unsaturated soil, a set of governing equations is established to describe consolidation of the unsaturated soil. Secondly, an analytical expression under any dynamic loads is obtained with the help of Laplace integral transformation. Finally, analysis of numerical examples under speciﬁc boundary conditions is made to discuss one-dimensional consolidation characteristics under harmonic loads and the inﬂuence of factors on the consolidation characteristics of unsaturated soil, such as excitation frequency and initial saturation.

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来源期刊

Journal of Theoretical and Applied Mechanics 物理-力学

CiteScore

1.40

自引率

14.30%

发文量

审稿时长

6 months

期刊介绍： The scope of JTAM contains: - solid mechanics - fluid mechanics - fluid structures interactions - stability and vibrations systems - robotic and control systems - mechanics of materials - dynamics of machines, vehicles and flying structures - inteligent systems - nanomechanics - biomechanics - computational mechanics