Application of Separate Launching Technology of Doubleshield TBM to Qingdao Metro Line No. 1

doi:10.3973/j.issn.2096-4498.2018.09.022

Tunnel Construction ›› 2018, Vol. 38 ›› Issue (9): 1573-1578.DOI: 10.3973/j.issn.2096-4498.2018.09.022

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Application of Separate Launching Technology of Doubleshield TBM to Qingdao Metro Line No. 1

WANG Xiaoqiang^{1, 2}, GUO Zhi^{1, *}, WANG Yidong¹, LI Changda¹, HAN Lisen¹, XU Chaoqun¹

(1.CSIC （Qingdao）Rail Transit Equipment Co., Ltd., Qingdao 266111, Shandong, China; 2. 704 Institue of CSIC, Shanghai 200031, China)

Received:2018-01-08 Revised:2018-03-21 Online:2018-09-20 Published:2018-09-30

Abstract

Abstract:

Due to the limited space of TBM launching area of Haiboqiao Station on Qingdao Metro Line No. 1, the separate launching technology of doubleshield TBM is adopted to realize construction function. The backup system is improved to realize separate launching of TBM with the lowest cost; and the basic separate launching scheme is discussed. The analytical results show that: (1) The basic backup systems needed for separate launching of doubleshield TBM include high/low voltage power supply and control system, water cooling system, hydraulic system, lubrication system, grease sealing system, air compression system, back filling and grouting system. (2) By lengthening the pipelines and cables, the doubleshield TBM can be disconnected at any position between the main body and the backup system or between the main body and part of backup system.

Key words: metro tunnel, doubleshield TBM, separate launching, backup system, adaptability improvement

CLC Number:

U 455

WANG Xiaoqiang, GUO Zhi, WANG Yidong, LI Changda, HAN Lisen, XU Chaoqun. Application of Separate Launching Technology of Doubleshield TBM to Qingdao Metro Line No. 1[J]. Tunnel Construction, 2018, 38(9): 1573-1578.

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Application of Separate Launching Technology of Doubleshield TBM to Qingdao Metro Line No. 1

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