Study of Key Construction Technologies of Open TBM in Complex Geological Conditions: Case Study of Gaoligongshan Tunnel

doi:10.3973/j.issn.1672-741X.2017.S1.021

Tunnel Construction ›› 2017, Vol. 37 ›› Issue (S1): 128-133.DOI: 10.3973/j.issn.1672-741X.2017.S1.021

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Study of Key Construction Technologies of Open TBM in Complex Geological Conditions: Case Study of Gaoligongshan Tunnel

SONG Faliang^{1, 2}, ZHAO Hailei¹

（1. State Key Laboratory of Shield Machine and Boring Technology, Zhengzhou 450001, Henan, China; 2. China Railway Tunnel Group Co., Ltd., Luoyang 471000, Henan, China）

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

Abstract

Abstract:

The geological conditions of Gaoligongshan Tunnel are extremely complex. The high geothermy, high ground stress, fault fractured zones and water gushing with high pressure are the key control factors for safe TBM construction. After carrying out data investigation, TBM cases study in China and abroad, expert consultation and TBM design, a series of technologies, i.e. advance geological prediction, rebar row + steel arch frame + shotcrete support and rational boring parameters, are adopted so as to guarantee continuous TBM construction. The study results can provide theoretical guidance for further TBM construction.

Key words: Gaoligongshan Tunnel, extremely complex geological condition, open TBM

CLC Number:

U 455.43

SONG Faliang, ZHAO Hailei. Study of Key Construction Technologies of Open TBM in Complex Geological Conditions: Case Study of Gaoligongshan Tunnel[J]. Tunnel Construction, 2017, 37(S1): 128-133.

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Study of Key Construction Technologies of Open TBM in Complex Geological Conditions: Case Study of Gaoligongshan Tunnel

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