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隧道建设(中英文) ›› 2013, Vol. 33 ›› Issue (11): 937-941.DOI: 10.3973/j.issn.1672-741X.2013.11.008

• 规划与设计 • 上一篇    下一篇

广州地铁暹岗站的抗浮计算分析

李广涛   

  1. (中铁隧道勘测设计院有限公司, 天津 300133)
  • 收稿日期:2013-07-17 修回日期:2013-10-09 出版日期:2013-11-20 发布日期:2013-11-15
  • 作者简介:李广涛(1980—),男,河南淇县人,2004年毕业于中南大学土木工程专业,本科,工程师,从事隧道及地下工程结构设计工作。

Analysis on Antifloating Calculation of Xiangang Metro Station in Guangzhou

LI Guangtao   

  1. (China Railway Tunnel Survey & Design Institute Co., Ltd., Tianjin 300133, China)
  • Received:2013-07-17 Revised:2013-10-09 Online:2013-11-20 Published:2013-11-15

摘要:

抗浮计算是地下地铁车站设计的重点,而计算参数、计算模型的选取对抗浮计算结果有较大影响。抗浮计算中部分参数的选取尚无统一规定,且使用阶段结构底板,尤其是轨道范围内的位移控制尚未引起足够重视。针对广州地铁暹岗站抗浮设计,选取适当的计算参数及公式,并采用有限元结构计算软件分析结构底板位移,最终合理确定结构相关抗浮方案。在满足抗浮的同时,车站底板不仅需要满足结构挠度要求,还需要考虑使用阶段的结构位移。可采用有限元计算软件进行模拟计算。

关键词: 广州地铁, 抗浮计算, 围护结构, 结构位移, 压顶梁, 抗拔桩

Abstract:

Antifloating calculation must be made in the design of underground Metro stations. The selection of the calculation parameters and calculation models has great influence on the result of the antifloating calculation. However, so far there is no standard related to the selection of the antifloating calculation parameters, and the attention paid to the displacement of Metro station floors, especially the displacement of floor part within the track scope, is inadequate. In the paper, regarding the antifloating design of a Metro station in Guangzhou, proper calculation parameters and proper calculation formulas are selected, the displacement of the floor of the Metro station is analyzed by means of FEM program and proper antifloating design is determined. The design of the Metro station should not only satisfy the antifloating requirements, but also should satisfy the structural deflection requirements and the service structural displacement requirements. FEM program can be used in the antifloating design of the Metro station.

Key words: Guangzhou Metro, antifloating calculation, retaining structure, structural displacement, capping beam, uplift pile