Design and Application of a Moving System with Wheel-Rail
Trolley for Ultra-Large Components Used in ShenzhenZhongshan Link

doi:10.3973/j.issn.2096-4498.2021.09.019

Tunnel Construction ›› 2021, Vol. 41 ›› Issue (9): 1594-1603.DOI: 10.3973/j.issn.2096-4498.2021.09.019

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Design and Application of a Moving System with Wheel-Rail Trolley for Ultra-Large Components Used in ShenzhenZhongshan Link

DONG Hongjing^{1, 2}, AI Rongjun³, ZHAO Guozhen⁴, WANG Xiaodong⁴

(1. CCCC Fourth Harbor Engineering Institute Co., Ltd., Guangzhou 510230, Guangdong, China; 2. Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, Guangdong, China; 3. Jiangmen Hangtong Shipbuilding Co., Ltd. of CCCC Fourth Harbor Engineering Co., Ltd., Jiangmen 529145, Guangdong, China; 4. The Second Engineering Company of CCCC Fourth Harbor Engineering Co., Ltd., Guangzhou 510230, Guangdong, China)

Online:2021-09-20 Published:2021-10-01

Abstract

Abstract:

Multiple problems will be encountered when the slip mode is adopted in the moving system of a large component. These problems include complex structure, fussy operation, difficult axis deviation control, low construction efficiency, and high operation cost. A moving system with a wheelrail trolley is designed and developed herein for a steelshell concreteimmersed tube prefabrication project in the ShenzhenZhongshan Link. A detailed analysis on this moving system is conducted from the aspects of the overall design, wheel diameter selection, bearing capacity review, roof design, and drive system design. A field test and a comparison of the construction efficiency and the economic benefits are conducted. The practical results show that the moving system with a wheelrail trolley has high construction efficiency and synchronization. Its axis deviation control also meets relevant specifications and design requirements, ensuring that ultralarge components with a weight exceeding 80 000 tons can be moved safely and efficiently.

Key words: steelshell concrete, immersed tube prefabrication, pipe movement, wheelrail trolley; moving system, bearing capacity review, drive system

CLC Number:

U 455.3

DONG Hongjing, AI Rongjun, ZHAO Guozhen, WANG Xiaodong.

Design and Application of a Moving System with Wheel-Rail Trolley for Ultra-Large Components Used in ShenzhenZhongshan Link [J]. Tunnel Construction, 2021, 41(9): 1594-1603.

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Design and Application of a Moving System with Wheel-Rail Trolley for Ultra-Large Components Used in ShenzhenZhongshan Link

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