岩土力学2012，Vol.33Issue(1)：273-279,7.
盾构隧道掘进全过程三维模拟方法及重叠段近接分区研究
Method of three-dimensional simulation for shield tunneling process and study of adjacent partition of overlapped segment
王明年 1张晓军 2苟明中 3崔光耀1
作者信息
- 1. 西南交通大学地下工程系,成都610031
- 2. 广东省公路勘察规划设计院股份有限公司,广州510507
- 3. 铁道部第二勘察设计院,成都610031
- 折叠
摘要
Abstract
It is difficult to simulate the whole process of shield tunneling and divide the overlapped shield tunnel. Combined with overlapped tunnel in Shenzhen Metro Hongling Zhonglu-Laojie-Shaibu interval to establish a more comprehensively 3D numerical simulation method, reflecting the characteristic of the whole tunneling process and divide shield tunnel from its horizontal direction on the basis of the index of Mohr-coulomb, longitudinal partition according to displacement rate of change. The results show that: the horizontal adjacent partition is : no-effect area when F≤Fα, weak-effect area when Fa<F<0, intensive-effect area when F≥0; longitudinal partition is: Less than 0.3 mm/d for the non-effect zone, 0.3-1.5 mm/d for the low impact zone, greater than 1.5 mm/d for the high-impact zone. The results applied to the Shenzhen Metro Hongling Zhonglu-Laojie-Shaibu intervals overlap tunnel, and achieved good results, and provide theoretical supports for the numerical simulation of the whole tunneling process and the design and construction of shield overlapped tunnel, and it also provides a reference for similar projects.关键词
盾构掘进/三维模拟/重叠隧道/近接分区Key words
shield tunnelling/three-dimensional simulation/overlapped tunnel/adjacent partition分类
交通工程引用本文复制引用
王明年,张晓军,苟明中,崔光耀..盾构隧道掘进全过程三维模拟方法及重叠段近接分区研究[J].岩土力学,2012,33(1):273-279,7.
