ISSN 2096-4498

   CN 44-1745/U

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Coping with Water Gushing in Shield Arrival

  • YU Jiayun
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  • (China Railway Tunnel Survey and Design Institute, Tianjin 300133, China)

Received date: 2013-01-28

  Revised date: 2013-03-01

  Online published: 2013-04-12

Abstract

Water gushing, sand inrush and collapse are prone to occur in shield arrival, which is one of the major risks in shield tunneling. Water gushing occurs in the shield arrival in a tunneling project. In order to cope with the gushing water, a shield receiving chamber made of reinforced concrete is built. The shield receiving method mentioned is mainly based on the idea of keeping balance in shield arriving. The shield receiving chamber made of reinforced concrete is closely connected to the tunnel portal and is filled with filling materials to keep the pressure in the chamber equal to the original soil pressure so as to simulate the shield tunneling conditions in the original soil and to ensure the safety during shield arrival.

Cite this article

YU Jiayun . Coping with Water Gushing in Shield Arrival[J]. Tunnel Construction, 2013 , 33(4) : 315 -318 . DOI: 10.3973/j.issn.1672-741X.2013.04.011

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