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隧道建设(中英文) ›› 2011, Vol. 31 ›› Issue (5): 583-587.

• 规划与设计 • 上一篇    下一篇

微型钢管桩桩基托换在广州地铁工程中的应用

魏玉省   

  1. (中铁隧道勘测设计院有限公司, 天津 300133)
  • 收稿日期:2011-07-11 修回日期:2011-08-10 出版日期:2011-10-20 发布日期:2011-11-14
  • 作者简介:魏玉省(1977—),男,山东菏泽人,2002年毕业于西南交通大学土木工程专业,本科,工程师,现从事隧道及地下工程设计工作。

Application of Micro Steel Pipe Piles in Underpinning in Guangzhou

WEI Yusheng   

  1. (China Railway Tunnel Survey & Design Institute Co., Ltd., Tianjin 300133, China)
  • Received:2011-07-11 Revised:2011-08-10 Online:2011-10-20 Published:2011-11-14

摘要: A group of micro steel pipe piles are selected in accordance with the surrounding environment and engineering geology of the project to underpin No. A4 pile foundation of No. A ramp of Guangzhou Inner Ring Viaduct Road. Calculation is made on the settlement of the pile foundation occurring after pile chiseling and shield passing. The calculated settlement value agrees well with the measured value, which shows that settlement calculation of the pile foundation is feasible and the micro steel pipe pile underpinning scheme adopted is feasible and rational.

关键词: shieldbored tunnel, micro steel pipe, pile underpinning construction, pile foundation settlement analysis

Abstract: A group of micro steel pipe piles are selected in accordance with the surrounding environment and engineering geology of the project to underpin No. A4 pile foundation of No. A ramp of Guangzhou Inner Ring Viaduct Road. Calculation is made on the settlement of the pile foundation occurring after pile chiseling and shield passing. The calculated settlement value agrees well with the measured value, which shows that settlement calculation of the pile foundation is feasible and the micro steel pipe pile underpinning scheme adopted is feasible and rational.

Key words: shieldbored tunnel, micro steel pipe, pile underpinning construction, pile foundation settlement analysis