增压式真空预压吹填淤泥孔压实时响应及加固机制初探

史吏; 胡东东; 蔡袁强; 潘晓东; 孙宏磊

doi:10.16285/j.rsm.2018.2192

欢迎来到能源电力期刊网！

English Version 期刊登录

您当前的位置：

首页 >

文章列表页 >

增压式真空预压吹填淤泥孔压实时响应及加固机制初探

基础理论与实验研究 | 更新时间：2026-06-25

- 增压式真空预压吹填淤泥孔压实时响应及加固机制初探
- Preliminary study of real-time pore water pressure response and reinforcement mechanism of air-booster vacuum preloading treated dredged slurry
- 岩土力学 2020年41卷第1期页码：185-193
- 作者机构：
  
  1. 浙江工业大学建筑工程学院,浙江,杭州,310014
  2. 浙江大学建筑工程学院,浙江,杭州,310058
- 作者简介：
- 基金信息：
  
  国家重点研发计划（No.2016YFC0800200）;国家自然科学基金（No.51620105008，No.51608482，No.51879234）;浙江省重点研发计划（No.2018C03038）
- DOI：10.16285/j.rsm.2018.2192
  中图分类号： TU472.33
- 网络首发：2020-01-05，
  
  纸质出版：2020
- 稿件说明：
移动端阅览
史吏, 胡东东, 蔡袁强, 等. 增压式真空预压吹填淤泥孔压实时响应及加固机制初探[J]. 岩土力学, 2020,41(1):185-193.

SHI Li, HU Dong-dong, CAI Yuan-qiang, et al. Preliminary study of real-time pore water pressure response and reinforcement mechanism of air-booster vacuum preloading treated dredged slurry[J]. 2020, 41(1): 185-193.
史吏, 胡东东, 蔡袁强, 等. 增压式真空预压吹填淤泥孔压实时响应及加固机制初探[J]. 岩土力学, 2020,41(1):185-193. DOI： 10.16285/j.rsm.2018.2192.

SHI Li, HU Dong-dong, CAI Yuan-qiang, et al. Preliminary study of real-time pore water pressure response and reinforcement mechanism of air-booster vacuum preloading treated dredged slurry[J]. 2020, 41(1): 185-193. DOI： 10.16285/j.rsm.2018.2192.

摘要

进行了增压式真空预压处理吹填淤泥的室内模型试验，利用沉降标、微型孔压计和微型十字板剪切仪对试验过程中的土体沉降量、孔压消散以及强度进行监测。结果表明，土体内部注气增压对土体沉降量、孔压累积消散量以及强度提升均有明显促进作用。特别地，获得了增压期间土体孔压的实时响应，并结合数值模拟分析，推断了增压提升淤泥地基处理效果的主要机制为：注气引起增压管/排水板之间土体产生微小的劈裂裂缝，提高了土体的渗透性，并且该裂缝在增压结束后继续提供额外的排水通道，从而在增压后仍能加快孔压消散和土体固结。

Abstract

Laboratory tests have been carried out for simulating dredged-slurry treatment combining air-booster and conventional vacuum preloading methods. Settlement plate

micro pore water pressure transducer and miniature vane shearing instrument are adopted for monitoring the settlement

the pore pressure dissipation and the soil strength during the test. The test results demonstrate that the air-booster vacuum-preloading method can significantly improve the soil strength

pore-water pressure dissipation and settlement. In particular

the real-time responses of pore-water pressure during the air-pressurizing process have been obtained that

in combination with the numerical simulations

help derive the reinforcement mechanism of the air-booster vacuum preloading method

which involves using micro cracks generated by splitting soil between the booster tube and PVD using the pressurised air. Those cracks improve the soil permeability

and have lasting effect even after air pressuring ceased.

关键词

Keywords

references

浏览量

270

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

化学改性联合真空预压法加固吹填土试验分析

真空预压-加热联合作用下竖井地基大变形固结模型

层状岩质边坡动力失稳及加固研究进展

真空联合电渗加固超细颗粒疏浚土试验研究

软基真空预压加固的注气增效机制与数值分析