›› 2004, Vol. 25 ›› Issue (7): 1017-1022.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Pore water pressure mode of oozy soft clay under impact loading

MENG Qing-shan, WANG Ren, CHEN Zhen   

  1. Key Laboratory of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2003-09-17 Online:2004-07-09 Published:2014-07-18

Abstract: Based on the laboratory dynamic consolidation tests of saturated oozy soft clay under impact loading, the dynamic response characteristics of pore water pressure were analyzed. The tests considered different combination schemes between hammer weight and dropping height. The relationship between pore water pressure and impact times followed the hyperbola. The rate of increase of pore water pressure is faster with impact number under high confining pressure; and for the pore water pressure of over consolidation soft clay under impact loading, the negative value occurred. The subsidiary stress of impact loading causes the increasing of pore water pressure; and the effective stress is increased because of the dissipating of pore water pressure. It is highly important to control construction quality by monitoring pore water pressure during on-site dynamic consolidation.

Key words: impact loading, oozy soft clay, pore water pressure

CLC Number: 

  • TU 441+.8
  • 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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