• CSCD核心中文核心科技核心
  • RCCSE(A+)公路运输高质量期刊T1
  • Ei CompendexScopusWJCI
  • EBSCOPж(AJ)JST
二维码

隧道建设(中英文) ›› 2011, Vol. 31 ›› Issue (S1): 32-37.

• 研究与探索 • 上一篇    下一篇

盾构隧道下穿机场飞行跑道沉陷控制三维数值分析

肖明1,2, 来颖1,2   

  1. (1 武汉大学水资源与水电工程科学国家重点实验室, 武汉 430072;〖JZ〗2 武汉大学水工岩石力学教育部重点实验室, 武汉 430072)
  • 收稿日期:2011-05-11 出版日期:2011-08-05 发布日期:2011-11-04
  • 作者简介:肖明(1957—),男,湖南株洲人,1982年毕业于武汉水利电力大学水工专业,研究生,教授,主要从事岩土工程和地下结构工作。

3D Numerical Analysis on Subsidence Control of Shield Tunnel Excavation under Airport Runways

XIAO Ming1,2,LAI Ying1,2   

  1. (1.State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;    2.Ministry of Education Key Laboratory of Hydraulic Rock Mechanics, Wuhan University, Wuhan 430072, China)
  • Received:2011-05-11 Online:2011-08-05 Published:2011-11-04

摘要: 当采用盾构隧道穿越机场跑道时,盾构隧道的设计和施工对飞行区跑道的沉陷变形产生较大影响。如何控制飞行区跑道的沉陷,保证盾构隧道施工的安全,是盾构隧道下穿跑道设计的关键。本文采用三维数值分析方法,对昆明轨道交通首期工程的巫家坝站—奥体中心站区间下穿巫家坝国际机场跑道盾构施工引起的飞行区跑道沉陷、盾构掘进对周围土体扰动、不同隧道埋深对跑道沉陷影响进行了分析研究。通过收集相关资料给出了跑道沉陷的控制标准,采用三维数值模拟计算,给出了盾构施工对土体扰动、地表沉陷的影响范围,提出了盾构隧道的合理埋深,为盾构隧道穿越机场跑道的设计提供了有效的依据。

关键词: 盾构隧道, 沉陷控制, 三维数值分析

Abstract: When shield machines are adopted in the excavation under airport runways, the design and construction of shield tunnel will suffer from the subsidence deformation. How to control the subsidence of the airport runways and how to ensure the safety of the construction of shield tunnel is the key. In this paper, 3D numerical methods are employed to analyze the subsidence of airpotr runway induced by shield construction, the disturbance of surrounding soil induced by shield excavation and the affection of the runway subsidence under different tunnel depths of the shield excavation on Wujiaba Station and Olympic Sports Center Station section of the first phase of Kunming rail. Related information are collected so as to propose the control standards of runway subsidence, 3D numerical methods are employed to get the influence area of the soil disturbance and surface subsidence. Rational depth of the shield tunnel is proposed. The paper can provide effective basis for the design of shield tunnel excavated under airport runways.

Key words: shield tunnel, subsidence control, 3D numerical analysis