›› 2012, Vol. 33 ›› Issue (S2): 289-296.

• Geotechnical Engineering • Previous Articles     Next Articles

Analysis of control standard for ground surface settlement in excavating metro station by shield tunnel combined with pile-beam-arch method

WANG Fang1, HE Shao-hui1, LIU Jun2, CAO Rui-lang1   

  1. 1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China; 2. School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
  • Received:2012-06-20 Online:2012-11-22 Published:2012-12-11

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Abstract: The contradictory between the construction of metro station and shield tunnel may be high effectively and safely solved by enlarging shield tunnel with shallow buried and undercutting method. The experiment section of Beijing metro line 14 is constructed by earth pressure balance shield machine with an outer diameter of 10 m; and the stations on this section will be constructed by pile-beam-arch method. The empirical formulas of predicting the ground surface settlement, the related statistics data and specifications, and numerical simulation methods, are used to predict the ground surface settlement caused by the large cross-section shield tunnel combined with pile-beam-arch method in construction process. Combined with the ground surface settlement control reference value of Beijing metro station and the statistic data of existing metro station statistics, the reasonable ground settlement control standard is put forward. In accordance with the three class control management methods, the ground surface settlement is controlled step by step. The research result has some reference value to guide the engineering construction.

Key words: shield tunnel, pile-beam-arch method, metro station, ground surface settlement, control standard

CLC Number: 

  • U 45
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