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

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

2015 , Vol. 35 >Issue S2: 76 - 85

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

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

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

Received date: 2015-05-24

Revised date: 2015-07-02

Online published: 2015-12-24

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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

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

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