Key Construction Technologies for 6Track Tunnels in Shijiazhuang on BeijingGuangzhou Highspeed Railway

doi:10.3973/j.issn.1672-741X.2016.02.018

Tunnel Construction ›› 2016, Vol. 36 ›› Issue (2): 241-250.DOI: 10.3973/j.issn.1672-741X.2016.02.018

Key Construction Technologies for 6Track Tunnels in Shijiazhuang on BeijingGuangzhou Highspeed Railway

WAN Qing¹, LI Huaijian¹, DU Hualin², MA Zhifu¹, ZHANG Guiyang¹, YU Quansheng², LIU Yong³, WANG Zhong¹

(1. The 3rd Survey & Design Insitute Group Co., Ltd.， of Ministry of Railway, Tianjin 300251, China; 2. Beijing CTG Construction Co., Ltd., China Railway Tunnel Group, Beijing 100022, China; 3. Shijiazhuang Tiedao University, Shijiazhuang 050043, Hebei, China)

Received:2015-05-08 Revised:2016-01-05 Online:2016-02-20 Published:2016-03-02

Abstract

Abstract:

The urban 6track tunnels (local 7track) in Shijiazhuang are different from other tunnels; their scale and complexity are unique in China. During the design and construction of the mentioned tunnels, a series of works, i.e. study demonstration, theoretical calculation, numerical analysis, construction scheme comparison and contrast, field testing and technical breakthrough, have been done so as to guarantee the safe construction of the tunnels. In the end, the safe construction of longdistance multiple arch tunnel is guaranteed; and a series of construction technologies, such as retaining of large foundation pit in soft strata, protection of beltshaped foundation pit adjacent to existing railway line, protection of multiple archtunnel crossing underneath running railway and construction of multiple archtunnel crossing underneath arterial road, and key research results of passengerdedicated railway crossing urban area are obtained.

Key words: 6track tunnel in Shijiazhuang, urban tunnel works, multiple arch tunnel, deep foundation, existing lines, under crossing

CLC Number:

U 455

WAN Qing, LI Huaijian, DU Hualin, MA Zhifu, ZHANG Guiyang, YU Quansheng, LIU Yong, WANG Zhong. Key Construction Technologies for 6Track Tunnels in Shijiazhuang on BeijingGuangzhou Highspeed Railway[J]. Tunnel Construction, 2016, 36(2): 241-250.

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Key Construction Technologies for 6Track Tunnels in Shijiazhuang on BeijingGuangzhou Highspeed Railway

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