Deformation of soil under vacuum preloading

XU Kai; MEI Guo-xiong; ZAI Jin-min; YIN Zong-ze

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Deformation of soil under vacuum preloading

更新时间：2026-06-25

- Deformation of soil under vacuum preloading
- Vol. 28, Issue 11, (2007)
- 作者机构：
  
  1. 南京工业大学土木工程学院,南京,210009
  2. 河海大学岩土工程研究所,南京,210098
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU443
- Online First：18 October 2013，
  
  Published：2007
- 稿件说明：
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XU Kai, MEI Guo-xiong, ZAI Jin-min, et al. Deformation of soil under vacuum preloading[J]. 2007, 28(11).
DOI：

XU Kai, MEI Guo-xiong, ZAI Jin-min, et al. Deformation of soil under vacuum preloading[J]. 2007, 28(11). DOI：

摘要

对真空预压的研究现状进行了总结，分析了该法的加固机理，并指出了在实际使用过程中所遇到的问题。研究表明，真空预压的加卸载实际上是以小主应力方向加卸载为主的过程；在卸去真空的过程中，小主应力方向的卸载会削弱土体的竖向回弹，土体不会出现明显的回弹现象，甚至可能继续沉降；模拟真空预压应力路径的试验需要更加合理的设计。

Abstract

The researches on vacuum preloading are summarized. The mechanism of vacuum preloading is analyzed; and some problems in practice are pointed out. Loading and unloading of vacuum preloading is derived and considered as loading and unloading from minor principal stress. Unloading from minor principal stress could weaken the resilience of the soil when unloading of vacuum preloading; the soil would not appear resilient obviously

even go sinking. We have needed to design the test of modeling vacuum preloading stress path more reasonably.

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