›› 2005, Vol. 26 ›› Issue (9): 1417-1420.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Monitoring and analysis of vibration effects due to underwater explosive ramming

LI Jun-ru, LI Hai-bo, GAO Jian-guang, ZHOU Qing-chun, LIU Ya-qun   

  1. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2004-09-08 Online:2005-09-10 Published:2013-12-30

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Abstract: Characteristics of the vibration and impact water pressure are analysed based on the in-situ monitoring for the Qinzhou Harbour (second phrase) underwater explosive ramming. It is revealed that monitoring results of the vibration velocity agree well with the empirical formula; while the monitoring value of the impact water pressure is far less than that of empirical formula as the existence of tensile wave. It is also reported that there is pulse phenomenon for the velocity and the impact water pressure, and the intensity intend to decrease. In addition, it is also suggested that the value of the impact water pressure increases with the increasing throw-in water depth because of the tensile wave. The results can be a good reference for the similar engineerings.

Key words: underwater explosive ramming, vibration velocity, impact water pressure

CLC Number: 

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