›› 2006, Vol. 27 ›› Issue (S1): 421-425.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on optimization of construction scheme for Xiamen subsea tunnels

ZHOU Yu   

  1. Road & Bridge Construction Investment Corporation of Xiamen, Xiamen 361009, China
  • Received:2006-07-27 Published:2006-12-15

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Abstract: Based on numerical simulation, the construction scheme of Xiamen subsea tunnel is optimized. Under conditions that lateral pressure coefficients equal to 0.6 and 0.9, firstly three common construction methods that are method of whole section excavation, scheme of upper and down benching and bench tunneling method are analyzed; the result that method of whole section excavation will slightly disturb the surrounding rock is gained compared the displacements of keypoints and the distributions of plastic zone on the surface of wall rock; finally the conclusion that the reasonable bench pace between upper and down benches is around 10 meters is proposed by analyzing tunnel stability under different bench lengths. The conclusion can direct the construction of tunnel better.

Key words: subsea tunnel, lateral pressure coefficient, plastic zone

CLC Number: 

  • U 45
  • 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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