Construction Technologies for Threebenchsevenstep Excavation Method and Equipment Matching of Soft Rock Tunnel on BaojiLanzhou Passengerdedicated Railway Line

doi:10.3973/j.issn.1672-741X.2015.S2.014

Tunnel Construction ›› 2015, Vol. 35 ›› Issue (S2): 76-85.DOI: 10.3973/j.issn.1672-741X.2015.S2.014

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Construction Technologies for Threebenchsevenstep Excavation Method and Equipment Matching of Soft Rock Tunnel on BaojiLanzhou Passengerdedicated Railway Line

DAI Runjun, LI Dongshun, ZHANG Chengyong

(The Second Engineering Co., Ltd. of China Railway Tunnel Group, Sanhe 065201, Hebei, China)

Received:2015-05-24 Revised:2015-07-02 Online:2015-12-15 Published:2015-12-24

Abstract

Abstract:

In this paper, the construction keys and equipment matching of threebenchsevenstep excavation method used in construction of Guchengling Tunnel and Lanshan Tunnel on BaojiLanzhou passengerdedicated railway line are presented. The suggestions for the construction are proposed as well.

Key words: BaojiLanzhou passengerdedicated railway line, threebenchsevenstep excavation method, mechanization, invert, step distance, soft rock tunnel

CLC Number:

Ｕ 45

DAI Runjun, LI Dongshun, ZHANG Chengyong. Construction Technologies for Threebenchsevenstep Excavation Method and Equipment Matching of Soft Rock Tunnel on BaojiLanzhou Passengerdedicated Railway Line[J]. Tunnel Construction, 2015, 35(S2): 76-85.

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Construction Technologies for Threebenchsevenstep Excavation Method and Equipment Matching of Soft Rock Tunnel on BaojiLanzhou Passengerdedicated Railway Line

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