Construction Technologies for Gatetype Steel Frame Support of ConnectionSection between Ventilation Gallery and Main Structure of Metro Tunnel

doi:10.3973/j.issn.1672-741X.2012.z2.031

Tunnel Construction ›› 2012, Vol. 32 ›› Issue (增刊2): 157-161.DOI: 10.3973/j.issn.1672-741X.2012.z2.031

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Construction Technologies for Gatetype Steel Frame Support of ConnectionSection between Ventilation Gallery and Main Structure of Metro Tunnel

WANG Wei, ZHANG Zhenhuang

(The 2nd Engineering Co., Ltd. of China Railway Tunnel Group, Sanhe 065201, Hebei, China)

Received:2012-07-26 Revised:2012-09-13 Online:2012-12-20 Published:2013-02-19

Abstract

Abstract:

In the construction of connection section of ventilation gallery and main structure of Metro tunnel constructed by mining method, the construction difficulty of is great and the risk coefficient is high and construction sequence is complicated. Gatetype steel frame support is used. Conclusions drawn are as follows: 1) The construction is simple, quick and with low lost. 2) The ground settlement value is small according monitoring data. 3) It is suitable for granite soil, but not for soil with soft surrounding rocks.

Key words: Qingdao Metro, Metro station, mining method, connection section, gatetype steel frame

WANG Wei, ZHANG Zhenhuang. Construction Technologies for Gatetype Steel Frame Support of ConnectionSection between Ventilation Gallery and Main Structure of Metro Tunnel[J]. Tunnel Construction, 2012, 32(增刊2): 157-161.

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Construction Technologies for Gatetype Steel Frame Support of ConnectionSection between Ventilation Gallery and Main Structure of Metro Tunnel

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