Displacement Responses of Submerged Floating Tunnels Under Impact Loads

ZHANG Yuan; DONG Man-sheng; TANG Fei

doi:10.3879/j.issn.1000-0887.2016.05.004

Volume 37 Issue 5

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ZHANG Yuan, DONG Man-sheng, TANG Fei. Displacement Responses of Submerged Floating Tunnels Under Impact Loads[J]. Applied Mathematics and Mechanics, 2016, 37(5): 483-491. doi: 10.3879/j.issn.1000-0887.2016.05.004

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Displacement Responses of Submerged Floating Tunnels Under Impact Loads

doi: 10.3879/j.issn.1000-0887.2016.05.004

¹School of Transportation Engineering, Hefei University of Technology, Hefei 230009, P.R.China;²China Merchants Chongqing Communications Technology Research & Design Institute Co., Ltd., Chongqing 400067, P.R.China

Funds: China Postdoctoral Science Foundation(20110490833)

Received Date: 2015-09-07
Rev Recd Date: 2016-02-05
Publish Date: 2016-05-15

Abstract

Abstract

The submerged floating tunnel (SFT) was simplified as an elastically supported beam with uniform supporting spacings. The dynamics model was established to solve the vibration problem of the SFT under impact loads. With the Galerkin method, the timedisplacement responses at the central cross section of the SFT was numerically simulated. The influences of the anchor stiffness, the impact mass and the impact velocity on the SFT’s central displacement were analyzed. The present results indicate that the anchor stiffness has significant but bounded negative influence on the SFT’s central displacement. Moreover, the impact mass and the impact velocity have obvious positive effects on the SFT’s central displacement. The work provides a theoretical reference for further study and construction of the SFT.
- submerged floating tunnel,
- impact load,
- displacement response,
- parameter design,
- numerical simulation

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References(18)

References

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