岩土工程学报2025，Vol.47Issue(z2)：30-35,6.DOI:10.11779/CJGE2025S20006
基于数字图像技术的超软土地基真空预压固结特性研究
Consolidation characteristics of ultra soft soil foundation by vacuum preloading based on digital image technology
摘要
Abstract
This study investigates soil samples from Wenzhou,Taizhou and Ningbo regions with different initial water contents.Indoor vacuum preloading model tests combined with particle image velocimetry(PIV)technology are used to analyze the differences in consolidation characteristics of the soil samples during the reinforcement process.The PIV technique revealed the mechanism of the consolidation differences.The results show that as the clay content and initial water content increase,the soil particle displacement increases,the permeability coefficient of the clogging zone significantly decreases,and the dissipation rate of pore water pressure diminishes.Additionally,the effect of particle gradation on the formation of consolidation differences in the clogging zone and soil is more pronounced.This research provides a theoretical basis and technical support for vacuum preloading reinforcement of soft soil foundations and offers significant guidance for engineering design and construction.关键词
软土地基/真空预压/粒子图像测速技术/模型试验Key words
soft soil foundation/vacuum preloading/particle image velocimetry(PIV)/model test分类
建筑与水利引用本文复制引用
张甲峰,李军世,张其峰,彭迪,何自立,翁振奇..基于数字图像技术的超软土地基真空预压固结特性研究[J].岩土工程学报,2025,47(z2):30-35,6.基金项目
国家自然科学基金青年项目(42407264) （42407264）
