Analysis on and Countermeasures for Technical Difficulties in  Construction of Yellow River Crossing Tunnel on Central Route  of SouthtoNorth Water Transfer Project

doi:10.3973/j.issn.1672-741X.2013.05.012

Tunnel Construction ›› 2013, Vol. 33 ›› Issue (5): 398-406.DOI: 10.3973/j.issn.1672-741X.2013.05.012

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Analysis on and Countermeasures for Technical Difficulties in  Construction of Yellow River Crossing Tunnel on Central Route  of SouthtoNorth Water Transfer Project

ZHENG Qingjun, ZHONG Shengxing

(China Railway Tunnel Stock Co., Ltd.， Zhengzhou 450003, Henan, China)

Received:2013-01-05 Revised:2013-03-08 Online:2013-05-20 Published:2013-05-16

Abstract

Abstract:

In the construction of Yellow River Crossing Tunnel on Central Route of SouthtoNorth Water Transfer Project, there are great technical difficulties related to the superdeep mortar wall, superdeep circularshaped diaphragm wall, superdeep circular vertical shaft, superdeep tunnel eye reinforcement and prestressed thin secondary lining. In the paper, analysis is made on these technical difficulties and countermeasures are proposed. In the end, satisfactory effect has been achieved and the tunnel has been built successfully.

Key words: SouthtoNorth water transfer project, Yellow River Crossing Tunnel, waterrich sand strata, superdepth mortar wall, diaphragm wall, circular vertical shaft, tunnel eye reinforcement, prestressing of circular anchor

ZHENG Qingjun, ZHONG Shengxing. Analysis on and Countermeasures for Technical Difficulties in  Construction of Yellow River Crossing Tunnel on Central Route  of SouthtoNorth Water Transfer Project[J]. Tunnel Construction, 2013, 33(5): 398-406.

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Analysis on and Countermeasures for Technical Difficulties in  Construction of Yellow River Crossing Tunnel on Central Route  of SouthtoNorth Water Transfer Project

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