Key Technologies for Receiving of Superlarge Diameter Slurry Shield

doi:10.3973/j.issn.1672-741X.2017.S1.019

Tunnel Construction ›› 2017, Vol. 37 ›› Issue (S1): 116-120.DOI: 10.3973/j.issn.1672-741X.2017.S1.019

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Key Technologies for Receiving of Superlarge Diameter Slurry Shield

YANG Zhao¹, SUN Guohua², YANG Qing^1

(1. National Enterprise Technology Center of CCCC Second Harbor Engineering Co., Ltd., Wuhan 430040, Hubei, China;2. Engineering Equipment Branch of CCCC Second Harbor Engineering Co., Ltd., Wuhan 430014, Hubei, China)

Received:2016-01-24 Revised:2017-04-06 Online:2017-05-20 Published:2017-05-27

Abstract

Abstract:

The receiving technologies for superlarge diameter slurry shield used in soft strata of Line N of rivercrossing passageway on Weisan Road in Nanjing are introduced. A new kind of shield receiving portal sealing structure, namely steel spring plate bundle structure, are adopted, which can avoid disadvantages of conventional sealing structure, i.e. inconvenient operation and easy damage. Special segments which can strengthen the portal sealing grouting effect are designed and manufactured, and good effects are reached. The results can provide references for similar projects in the future.

Key words: rivercrossing passageway on Weisan Road in Nanjing, superlarge diameter slurry shield, shield receiving, end soil reinforcement, tunnel portal sealing, grouting

CLC Number:

U 45

YANG Zhao, SUN Guohua, YANG Qing. Key Technologies for Receiving of Superlarge Diameter Slurry Shield[J]. Tunnel Construction, 2017, 37(S1): 116-120.

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Key Technologies for Receiving of Superlarge Diameter Slurry Shield

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