›› 2014, Vol. 28 ›› Issue (4): 81-83.

• 工程实录 • 上一篇    下一篇

大湾沟隧道开挖顺序FLAC3D数值模拟研究

雷刚   

  1. (中油辽河工程有限公司,辽宁盘锦 124010)
  • 收稿日期:2013-05-16 出版日期:2014-06-20 发布日期:2014-08-20
  • 作者简介:雷刚(1967-),硕士,高工/所长,中油辽河工程有限公司,研究方向为岩土工程与水工建筑。

Numerical Simulation of Dawangou Tunnel Excavation Sequence by FLAC3D

LEI Gang   

  1. (Liaohe Engineering Co., Ltd., CNPC, Panjin Liaoning  124010)
  • Received:2013-05-16 Online:2014-06-20 Published:2014-08-20

摘要: 隧道的不同开挖顺序对围岩的变形及后续支护工作具有重要的影响,但由于隧道开挖顺序主要依赖于工程类比和现场量测设计方法,不能很好地选出合理的开挖方案。应用FLAC3D对大湾沟隧道不同开挖顺序进行模拟,通过综合分析不同开挖顺序的隧道围岩位移、塑性区、围岩应力等指标,从而确定大湾沟隧道开挖顺序的最佳方案。

关键词: 隧道工程, 开挖顺序, 数值模拟, FLAC3D

Abstract: The tunnel excavation sequence has important impacts on the deformation of the surrounding rock mass and the later supporting procedure. This is especially true for the rock mass classified as IV and V. However, the analogy and insitu survey are the major ways to determine the excavation sequence and the optimized excavation sequence is not usually selected. The three dimensional numerical analysis using FLAC3D is performed on the Dawangou Tunnel excavation which different sequences can be simulated and the deformation of the surrounding rock mass, development of the plastic zones and the stress within the rock mass can be compared so that an optimized excavation can be determined.

Key words: Tunnel Engineering, Excavation Sequences, Numerical Analysis, FLAC3D