ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2009, Vol. 29 ›› Issue (3): 305-309.DOI: B
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ZHANG Bin
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Abstract:
Abstract: Taking the shield launching and arriving at Yuanshen Road intermediate ventilation shaft in No.2 bid section of second phase of No.9 Line of Shanghai Metro as an example, the author presents the technological problems including extradeep cover, confined water, freezing method, curve with small radius, shield parallel moving along curve path in ventilation shaft and shield tunnelling near buildings. After scheme optimization, practical countermeasures including strengthening waterproofing at tunnel portal, adoption of launching along tangent and arriving with compensation and advance reinforcement of nearby building was put forward, which ensures the successful launching and arriving of the shield.
Key words: shield, complex geologylaunching and arrivingextradeep coverconfined watercurve with small radiusfreezing methodgreasy polyurethane
CLC Number:
 
U 455.43
ZHANG Bin. Construction Technology of Launching and Arriving for Shield Tunnelling in Complex Geology[J]. Tunnel Construction, 2009, 29(3): 305-309.
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