路基工程Issue(2)：178-182,5.DOI:10.13379/j.issn.1003-8825.202411058
不同渗透性地层中预制管桩连续贯入饱和土的响应分析
Analysis on Response of Continuous Penetration of Precast Tubular Piles into Saturated Soil in Different Permeability Strata
汤泽华 1莫艺翔2
作者信息
- 1. 深圳中铁二局工程有限公司,广东 深圳 518000
- 2. 西南交通大学交通隧道工程教育部重点实验室,成都 610031
- 折叠
摘要
Abstract
Based on the Phase I Project of Dongguan Rail Transit Line 1,FLAC3 D was used to establish a model simulating continuous penetration of precast tubular pile into saturated soil.The penetration process of tubular pile was imitated by the reaming method,so as to analyze the variation law of saturated soil displacement and excess pore water pressure during pile sinking.The result shows that,the uplift displacement of the ground surface occurs during pile sinking,and the increase in the early stage of pile sinking is larger,and the increase in the later stage is smaller;the pore water pressure is mainly distributed at a radius of about 5.0 m,and the pore water pressure value after dissipation is greater than the initial value before pile sinking.The permeability of the soil has a significant effect on the pile sinking process.The worse the permeability of the soil,the greater the surface uplift displacement.关键词
饱和土/预制管桩/沉桩/位移/孔隙水压力Key words
saturated soil/precast tubular pile/pile sinking/displacement/pore water pressure分类
土木建筑引用本文复制引用
汤泽华,莫艺翔..不同渗透性地层中预制管桩连续贯入饱和土的响应分析[J].路基工程,2025,(2):178-182,5.
