›› 2005, Vol. 26 ›› Issue (8): 1184-1188.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Three-dimensional analysis of in-filled trench as barriers for isolating vibration in far field

GAO Guang-yun1, LI Zhi-yi1, QIU Chang2   

  1. 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Shanghai Pudong Construction Project Management Ltd, Shanghai 201201, China
  • Received:2004-05-09 Online:2005-08-10 Published:2013-12-26

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Abstract: In-filled trench is equivalent to an obstacle in half-space when it was used for isolating vibration. Based on the integral equation of Rayleigh wave scattering, the paper studied the passive isolating vibration in far field by in-filled trench barrier in 3-D, and discussed some key factors affecting effectiveness of barriers. The results show that rigid material has a better effect than flexible one in isolating vibration, so the former should be selected as barrier material in engineering. The effect of isolating vibration is due to the depth and thickness of the trench. When the depth of barriers is more than a Rayleigh wave length, the effectiveness of isolating vibration increases for a little with the barrier depth increase.

Key words: in-filled trench, far-field passive isolating vibration, Rayleigh wave scattering, continuous barrier, integral equation

CLC Number: 

  • TU 352
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