In English only
|Start|Sök|Om| 
Topic: Dynamic Pile Testing
Subject: Energy Transferred Ration greater than 100% as recorded in PDA
 
Author: Lawrence Shek 2003-04-08  
     
  Dear all,

I am now making review of some PDA tests for 305x305x180kg/m grade 55 steel H-piles. The pile length is about 35m with general geology consisting of fill (8m, gravelly to sandy), alluvium (4m, sandy), grade V weathered soil (sandy)

From the PDA (PAK model) records of 5 piles, it was recorded that the transferred energy ratio (EMX/PE) are about 120% . The testing contractor claimed that such abnormal readings are "due to additional acceleration applied to the hammer ram after rebound". I would like to seek the opinions from any experienced partitioner. Thank you very much!
 
   

 

back.gif (57 bytes) Return to subject 'Dynamic Pile Testing'

 

Follow-ups:

» Richard Yu, 2003-04-09
» Bengt H. Fellenius, 2003-04-15
» Jiwei Duan, 2004-05-06
» Garland Likins, 2005-01-28

Show all follow-ups

Copyright ©1998-2009 GRV AB Legal disclaimer