华东交通大学学报Issue(1)：94-99,6.
类矩形盾构隧道施工期上浮影响因素分析
Influence Factor Analysis for Upward Floating of Quasi Rectangle Shield Tunnel in Construction Period
刘畅 1周顺华 1季昌 1蒋敏 2李刚3
作者信息
- 1. 同济大学道路与交通工程教育部重点实验室，上海201804
- 2. 宁波市轨道交通集团有限公司，浙江 宁波315101
- 3. 上海隧道工程有限公司，上海200232
- 折叠
摘要
Abstract
On the basis of the first domestic quasi rectangle railway shield, using 3D simulation finite element analysis software ABAQUS, this study establishes the 3D finite model of quasi rectangle shied tunnel and ana-lyzes the upward floating deformation during construction caused by synchronous grouting parameters, cylinder thrust force, back-up system weight, etc. Results show that improving grouting pressure difference between the roof and bottom of the tunnel, horizontal and downward cylinder thrust force or back-up system weight can re-duce upward floating deformation during construction. Using grout with a short initial setting time is the most ef-ficient way to reduce the longitudinal tunnel deformation. The insights provided from this study may contribute to the improvement of quasi rectangle shield tunnel construction.关键词
类矩形盾构/数值模拟/施工期隧道上浮/影响因素分析Key words
quasi rectangle shield/numerical simulation/upward floating during construction/influence factor analysis分类
建筑与水利引用本文复制引用
刘畅,周顺华,季昌,蒋敏,李刚..类矩形盾构隧道施工期上浮影响因素分析[J].华东交通大学学报,2016,(1):94-99,6.
