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隧道建设(中英文) ›› 2011, Vol. 31 ›› Issue (3): 330-333.

• 研究与探索 • 上一篇    下一篇

无锡软土地区某区间隧道盾构施工引起的建筑物沉降分析

涂智溢   

  1. 中铁隧道勘测设计院有限公司, 天津 300133
  • 收稿日期:2011-01-30 修回日期:2011-05-09 出版日期:2011-06-20 发布日期:2011-07-08
  • 作者简介:涂智溢(1979—),男,福建大田人,2005年毕业于安徽理工大学地下结构工程专业,硕士研究生,工程师,主要从事地下工程的设计及研究工作。

Analysis on Building Settlement Induced by Shield Tunneling in Soft Soil Area in Wuxi

TU Zhiyi   

  1. China Railway Tunnel Survey & Design Institute Co., Ltd. ,Tianjin 300133, China
  • Received:2011-01-30 Revised:2011-05-09 Online:2011-06-20 Published:2011-07-08

摘要:

为积累在软土地质条件下盾构施工经验,针对无锡地铁1号线某区间穿越城市中心地带盾构施工,根据其建筑物密集、施工场地狭小、地质情况复杂等特点,采用有限元FLAC2D和Peck经验理论对沿线建筑在盾构施工时的沉降变形进行预测和分析。根据数值分析及Peck沉降估算,地表沉降及建筑物倾斜均满足相关规范要求,采用盾构法施工是安全的。

关键词: 软土地区, 盾构, 沉降, FLAC2D, Peck经验理论

Abstract:

A running tunnel of Wuxi Mero Line 1, which crosses the downtown area of the city, is bored by shield machines. There are lots of buildings in the congested site and the geology conditions are complex. The settlement of the buildings occurring during the shield tunneling is predicted by finite element FLAC2D method and Peck theory. The results of the numerical analysis and the prediction by Peck theory indicate that the ground surface settlement and the inclination of the buildings meet the requirements of relevant standards and that the shield tunneling is safe.

Key words: soft soil, shield, settlement, FLAC2D, Peck theory