Monitoring Analysis of Construction for Connecting Aisle in Metro Tunnel with Freezing Method

BAO Yong-liang, ZHENG Qi-zhen, TANG Jian-zhong

Journal of Railway Engineering Society ›› 2009, Vol. 26 ›› Issue (3) : 93-95.

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PDF(355 KB)
Journal of Railway Engineering Society ›› 2009, Vol. 26 ›› Issue (3) : 93-95.

Monitoring Analysis of Construction for Connecting Aisle in Metro Tunnel with Freezing Method

  • BAO Yong-liang1, ZHENG Qi-zhen1, TANG Jian-zhong2
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Abstract

Research purposes:The deformation of the ground surface is essential to the successful construction of tunnel in city. The freezing parameters should be decided rationally through making analysis of the deformation of the ground surface, the expanding and releasing pressures for the purposes of establishing effective soil pressure balance, reducing the deformation of the ground surface, and guaranteeing construction quality.
Research conclusions:Taking the connecting aisle construction of bidding 2 of Line 10 of Shanghai metro as an example, the deformation of the ground surface, the expanding and releasing pressures in the soil were monitored on the site and monitored data are analyzed in this paper. The monitored data and analysis results show the deformations can be controlled in the prescribed limit if the parameters of freezing time, expanding pressures are defined rationally and an effective soil pressure balance is established.

Key words

metro tunnel / connecting aisle / freezing method / monitoring analysis

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BAO Yong-liang, ZHENG Qi-zhen, TANG Jian-zhong. Monitoring Analysis of Construction for Connecting Aisle in Metro Tunnel with Freezing Method[J]. Journal of Railway Engineering Society, 2009, 26(3): 93-95

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