Comparative Analysis of Underwater Vibrating Compaction Technology and Compaction on Land

Jian Bao Fu; Ai Hua Liang; Bin Bin Xu

doi:10.4028/www.scientific.net/AMR.1030-1032.740

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1030-1032Comparative Analysis of Underwater Vibrating...

Comparative Analysis of Underwater Vibrating Compaction Technology and Compaction on Land

Abstract:

In HongKong-Zhuhai-Macao bridge project, about 4.8 kilometers stone bed underwater should be compacted to make it smooth and remove the excess settlement. Vibrating compaction method would be used to tamp the stone layer with no dead angle in a short construction period. This paper theoretical studied on vibrating compaction technology of scattering-filling rubble stone layer. Vibrating compaction system and stone layer were simplified to a mechanical model and the vibration equation was established. According to an interpolation table, a fitting formula of equivalent damping was given. Through rigorous mathematical derivation, this paper gave mathematical expressions of the vibration displacement, the vibration velocity and compaction work on stone layer. Both compaction work on land and compaction work underwater could be calculated by these mathematical expressions. Lastly, through a set of field test parameters, comparative analysis between compaction work on land and compaction work underwater was carried out. The result shows that the weakening effect of water on compaction work is poor.

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Periodical:

Advanced Materials Research (Volumes 1030-1032)

Pages:

740-743

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1030-1032.740

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Online since:

September 2014

Authors:

Jian Bao Fu*, Ai Hua Liang, Bin Bin Xu

Keywords:

Comparative Analysis, LaNd, Theoretical Research, Undewater, Vibration Compaction Technology

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* - Corresponding Author

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