土工基础

›› 2011, Vol. 25 ›› Issue (6): 49-.

• 工程实录 • 上一篇    下一篇

盾构模型试验研究现状及新设想

 孙吉主， 肖文辉   

  1. (武汉理工大学土木工程与建筑学院，武汉 430070)
  • 收稿日期:2011-03-17 出版日期:2011-12-20 发布日期:2012-01-15
  • 作者简介: 孙吉主，男，1970年生，教授，主要从事岩土力学理论研究工作。
  • 基金资助:

    中央高校基本科研业务费专项资金资助；岩土力学与工程国家重点实验室开放基金。

State-of-the-Art of Shield Tunnel Model Tests

SUN  Ji  zhu， XIAO  Wen  hui   

  1. (School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China)
  • Received:2011-03-17 Online:2011-12-20 Published:2012-01-15

摘要： 针对盾构隧道模型试验研究内容分别从地层位移和应力变化、开挖面稳定性及支护压力、地层适应性三个方面进行了综述，分析了盾构隧道离心模型试验和常规物理模型试验存在的问题。在成功合成透明土的基础上，提出了有机玻璃盾构模型、光学测量和粒子图像测速(PIV)数字图像处理三部分组成的试验系统，可以用于盾构施工引起的地层移动及开挖面稳定性问题研究。

关键词: 盾构隧道, 模型试验, 透明土, 地层位移

Abstract: Three aspects of state\|of\|the\|art research on shield tunnel model tests are reviewed in this paper. These aspects are: displacement and stress changes in the underground strata; stability of excavated faces and pressures on the supporting structures, and stratum adaptability of tunnel excavations. Limitations existing in the shield tunnel conventional and centrifuge model tests are also discussed. Based on the success of the synthesis of a transparent soil, a new model test system is presented. This new system consists of a plexiglass shield model, an optical measurement device and a Particle Image Velocimetry (PIV) digital image processing system. The improved system can be used to study ground movements and the stability of the excavated faces due to the shield tunneling.  

Key words:  , tunnel, model tests, transparent soils, underground displacements