ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2010, Vol. 30 ›› Issue (4): 407-410.

• wenzhang • Previous Articles     Next Articles

Prevention and Control of Portal Diseases of
Highway Tunnels under Sea Environment

 CHEN  Yong-He1, CHEN  Xiao-Hua1, CHEN  Mei-Ding2   

  1. 1. Dinghai Highway Administration Bureau, Zhoushan 316000, Zhejiang, China;
    2. Zhoushan Meteorology office, Zhoushan 316000, Zhejiang, China
  • Received:2010-04-02 Revised:2010-05-05 Online:2010-08-27 Published:2010-08-30

Abstract:

Diseases frequently occur to the portals of highway tunnels on sea islands in east Zhejiang province. The environmental influences, disease types and disease occurring mechanisms are analyzed. The concept and method for the prevention and control of the diseases are recommended. Disaster modes of tunnel portals are established and the design parameters of the portal works under the most unfavorable conditions are determined so as to prevent the diseases from occurring; systematic engineering quality guarantee measures are taken to avoid the portal diseases.

Key words: sea island environment, highway tunnel, portal disease, disease occurring mechanisms, disaster mode, prevention and control method