›› 2006, Vol. 27 ›› Issue (S1): 243-248.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on minimum rock cover and route optimal scheme of subsea road tunnel at Xiangshan Harbor

LI Shu-cai，DING Wan-tao   

  1. Geotechnical＆Structural Engineering Research Center, Shandong University，Jinan 250061，China
  • Received:2006-06-28 Published:2006-12-15

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Abstract: The subsea tunnels all over the world are investigated; and the three methods, such as Norway experiential method, the minimum leakage method and coal cutting experience under water, are summarized. According to above-motioned methods, the engineering analogy is used to decide the minimum rock cover of a subsea tunnel at Xiangshan Harbor. The results of three methods are thought over overall. Meanwhile its geology is considered. Then the optimal rock cover is gained. To take into account the subsea landform and geology, a profile is chosen to be the reference profile. According to the design gradient of the subsea, the tunnel motherboards and the rock covers of profiles are obtained. Comparing those with the results of engineering analogy, the shortcut of tunnel is got under the safety condition by adjusting the gradient of the part of the tunnel motherboards; so the optimal scheme to construct the subsea road tunnel is decided.

Key words: subsea tunnel, minimum rock cover, maximum gradient, optimal scheme

CLC Number: 

  • U 459.5
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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