Discussion on Design of Cutterhead of Horseshoeshaped Tunnel Boring Machine

doi:10.3973/j.issn.1672-741X.2017.S1.035

Tunnel Construction ›› 2017, Vol. 37 ›› Issue (S1): 204-211.DOI: 10.3973/j.issn.1672-741X.2017.S1.035

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Discussion on Design of Cutterhead of Horseshoeshaped Tunnel Boring Machine

LIU Jiao

(China Railway Engineering Equipment Group Co., Ltd., Zhengzhou 450016， Henan， China)

Received:2017-02-13 Revised:2017-05-03 Online:2017-05-20 Published:2017-05-27

Abstract

Abstract:

The design features of multiface soft soil cutterhead, rectangular cutterhead, horseshoeshaped cutterhead and other noncircular cutterhead of tunnel boring machine are summarized; and the key technologies for combination cutterhead of horseshoeshaped tunnel boring machine, i.e. tunnel face flow field simulation, cutterhead static simulation, blind area treatment and rock breaking mechanism, are analyzed emphatically. By studying the abovementioned technologies, design optimization can be provided for combination cutterhead of horseshoeshaped tunnel boring machine. The combination of scraping rock breaking and squeezing rock breaking for horseshoeshaped tunnel boring machine is proposed innovatively. The results can provide reference for cutterhead design of noncircular cutterhead of tunnel boring machine.

Key words: tunnel boring machine, horseshoeshaped crosssection, cutterhead design, soft soil, hard rock

CLC Number:

U 455.3

LIU Jiao. Discussion on Design of Cutterhead of Horseshoeshaped Tunnel Boring Machine[J]. Tunnel Construction, 2017, 37(S1): 204-211.

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Discussion on Design of Cutterhead of Horseshoeshaped Tunnel Boring Machine

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