ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction >

2020 , Vol. 40 >Issue 5: 735 - 746

DOI: https://doi.org/10.3973/j.issn.2096-4498.2020.05.016

Design of Super-large Diameter Slurry Shield Used in Shantou Bay Tunnel and Construction Countermeasures for Unfavorable Geology

  • WANG Famin ,
  • SUN Zhenchuan ,
  • ZHANG Lianghui ,
  • LI Fengyuan ,
  • ZHANG Bing ,
  • WANG Guo′an
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  • (1. State Key Laboratory of Shield Machine and Boring Technology, Zhengzhou 450001, Henan, China; 2. China Railway Tunnel Group Co., Ltd., Guangzhou 511458, Guangdong, China; 3. Shantou Su′ai Pass Construction Investment and Development Co., Ltd., Shantou 515000, Guangdong, China)

Online published: 2020-06-06

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Abstract

The tunneling of super-large diameter slurry shield in soil-rock-boulder composite strata in sea area is difficult and risky. Hence, a series of targeted designs are carried out for cutterhead and cutter, brushing system, main drive, etc. of slurry shield used in Shantou Bay Tunnel to improve the equipment adaptability, and a series of targeted treatments are carried out for boulder processing, cutter configuration, tunneling parameter control and construction management. Consequently, the cutterhead wear is reduced, the segement up-floating is control, the construction efficiency is improved, the shield safety is guaranteed, and the section with unfavorable geology is rapidly passed through.

Key words： Shantou Bay Tunnel; composite ground in sea area; super-large diameter slurry shield; cross-sea highway tunnel; shield design; cutter configuration; segment up-floating; boring parameters

Cite this article

WANG Famin , SUN Zhenchuan , ZHANG Lianghui , LI Fengyuan , ZHANG Bing , WANG Guo′an . Design of Super-large Diameter Slurry Shield Used in Shantou Bay Tunnel and Construction Countermeasures for Unfavorable Geology[J]. Tunnel Construction, 2020 , 40(5) : 735 -746 . DOI: 10.3973/j.issn.2096-4498.2020.05.016

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