Development and Application of Key Technologies to Quasirectangular Shield Tunneling

doi:10.3973/j.issn.1672-741X.2017.09.001

Tunnel Construction ›› 2017, Vol. 37 ›› Issue (9): 1055-1062.DOI: 10.3973/j.issn.1672-741X.2017.09.001

Development and Application of Key Technologies to Quasirectangular Shield Tunneling

ZHU Yaohong¹, ZHU Yanfei², HUANG Dezhong², YANG Zhihao³, LIU Xian⁴, LIU Shuang²

(1. Ningbo Rail Transit Group Co., Ltd., Ningbo 315101, Zhejiang, China; 2. Shanghai Tunnel  Engineering Co., Ltd., Shanghai 200232, China; 3. Shanghai Tunnel Engineering & Rail Transit Design and Research Institute, Shanghai 200235, China; 4. Tongji University, Shanghai 200092, China)

Received:2017-04-17 Revised:2017-08-25 Online:2017-09-20 Published:2017-09-28

Abstract

Abstract:

The management mode of scientific researchdesignconstruction integration is adopted in Line No. 4 project of Ningbo Metro; and the technical system of railway transit quasirectangular shield tunnel is developed. By adopting the abovementioned technical system, the problems of segment design and structural optimization have been solved. The fullface cutterhead and driving system, shield hinging and sealing technology and ringarm segment erector have been developed. The simultaneous grouting technology, segment erection simulation and technical optimization and shield axial line control have been studied. A new kind of singletube doubleline tunnel will appear to solve the problem of limit underground space in core districts of cities in China.

Key words: quasirectangular shield, lining structure design, full workface excavation, ringarm segment erector, segment assembling, simultaneous grouting

CLC Number:

U 45

ZHU Yaohong, ZHU Yanfei, HUANG Dezhong, YANG Zhihao, LIU Xian, LIU Shuang. Development and Application of Key Technologies to Quasirectangular Shield Tunneling[J]. Tunnel Construction, 2017, 37(9): 1055-1062.

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Development and Application of Key Technologies to Quasirectangular Shield Tunneling

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