A large strain consolidation model of vertical drains foundation
 under vacuum preloading combined with heating

ZHOU Ya-dong; WU Song-lin; XING Bei-qi; LI Yu-long

doi:10.16285/j.rsm.2025.0127

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

A large strain consolidation model of vertical drains foundation under vacuum preloading combined with heating

更新时间：2026-07-06

- A large strain consolidation model of vertical drains foundation under vacuum preloading combined with heating
- Vol. 47, Issue 2, Pages: 571-580(2026)
- 作者机构：
  
  1. 天津城建大学天津市软土特性与工程环境重点实验室,天津,300384
  2. 天津市博川建设工程有限公司,天津,300350
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2025.0127
  CLC： TU472.33
- Online First：05 February 2026，
  
  Published：05 February 2026
- 稿件说明：
移动端阅览
ZHOU Ya-dong, WU Song-lin, XING Bei-qi, et al. A large strain consolidation model of vertical drains foundation under vacuum preloading combined with heating[J]. 2026, 47(2): 571-580.
DOI：

ZHOU Ya-dong, WU Song-lin, XING Bei-qi, et al. A large strain consolidation model of vertical drains foundation under vacuum preloading combined with heating[J]. 2026, 47(2): 571-580. DOI： 10.16285/j.rsm.2025.0127.

摘要

采用分段线性差分法，建立了饱和土竖井地基真空预压联合加热大变形非线性固结模型RVTCS。该模型将土层径向热传导与大变形热固结相耦合，可以考虑固结过程中土体热应力和热膨胀、土体自重、径向和竖向渗流、时间相关的热源温度、非线性压缩性和渗透性关系、回弹再压缩效应，具有分析真空预压联合加热各种组合下的大变形热固结问题的能力。采用现有大型真空预压联合加热固结试验对该模型进行验证，沉降量的RVTCS数值解与室内试验结果吻合较好。通过算例分析，深入研究了不同组合工况下超静孔压、沉降量、固结度和温度的变化规律，真空预压联合加热能够显著提高土体的沉降量和固结速率。

Abstract

A large strain nonlinear radial consolidation model RVTCS for saturated soil foundation under vacuum preloading combined with heating is developed by using piecewise-linear difference method. This model couples radial heat conduction in a soil layer with large-strain thermo-consolidation. It accounts for thermal stress and thermal expansion during consolidation

self-weight

radial and vertical seepage

time-dependent heat-source temperature

nonlinear relationships between compressibility and permeability

and rebound–recompression behavior. The model can analyze large-strain thermo-consolidation under various combinations of vacuum preloading and heating. The model is verified by large-scale vacuum preloading combined with heating consolidation test

and the RVTCS numerical solution of settlement is in good agreement with the indoor test results. The variation laws of excess pore water pressure

settlement

degree of consolidation

temperature and energy consumption under different combined conditions are deeply studied through the analysis of numerical examples. The combination of vacuum preloading and heating can significantly improve the settlement and consolidation rate of soil layer.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Non-linear self-weight consolidation model of saturated soft soil under large-strain condition

Experimental study on vacuum combined with electro-osmosis for reinforcing ultrafine particle dredged soil

Mechanism and numerical analysis of effect of air injection on vacuum preloading for weak foundation improvement

Research on multiple chemical grouting experiment of porous sandstone

Experimental research on clogging characteristic of two types of PVD filters

Related Author

PU He-fu

SONG Ding-bao

ZHENG Jun-jie

ZHOU Yang

YAN Jing

LI Zhan-yi

WANG Bing

HU Xiao-bo

Related Institution

School of Civil Engineering and Mechanics, Huazhong University of Science and Technology

Anhui Provincial (Huaihe River Conservancy Commission of the Ministry of Water Resources) Water Resources Science Research Institute

Anhui Provincial Key Laboratory of Water Science and Intelligent Water Conservancy

CCCC Third Harbor Scientific Research Institute Co., Ltd.

Port and Shipping Management Bureau of Wenzhou

AI问答

⁰