ISSN 2096-4498

   CN 44-1745/U

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Suggestions on Design and Construction of Pump Stations of  Shieldbored Running Tunnels in Beijing

  • YANG Zhuangzhi
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  • (Survey, Design & Research Institute, China Railway Tunnel Group Co. Ltd., Luoyang 471009, Henan, China)

Received date: 2014-12-15

  Revised date: 2015-07-23

  Online published: 2015-11-09

Abstract

In the paper, the experience and lessons drawn in the design and construction of the pumping stations of the shieldbored running tunnels in Beijing are summarized and the following suggestions are made: 1) If possible, the cover depth of the pumping stations should be appropriately reduced so as to minimize the difficulty in the construction of the pump stations; 2) In waterrich ground where only deephole grouting is made, there is great water/sand inflow risk in the construction of the pumping stations, therefore artificial freezing or ground surface dewatering should be made as far as possible; 3) Deephole grouting may be used as the final optimized countermeasure. 

Cite this article

YANG Zhuangzhi . Suggestions on Design and Construction of Pump Stations of  Shieldbored Running Tunnels in Beijing[J]. Tunnel Construction, 2015 , 35(10) : 1071 -1076 . DOI: 10.3973/j.issn.1672-741X.2015.10.016

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