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Author:
Mun Kwai Peng
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2001-09-04 |
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Dynamic Load Test Should not Be Carried out on Short Piles.
I also commented the above in the same seminar at a local Institution of Engineers Malaysia recently. The seminar was supported by Dr. Julian Seidel and Mr. Peter Middendorp as oversea speakers and Ir. Richard Yu and Myself Ir. Mun Kwai Peng as the speakers from the local engineers practicing stresswave measurement. At the end of the seminar, I made a report saying the above statement in the Institution's monthly bulletin. There were some feedbacks on the above statement, which were of different opinion on the above subject. I am seeking other experts' opinion worldwide on this subject as whether we should allow such practice.
But first let me explain why I made such statement.
In very short pile less than 2 to 3.0m long where the hammer blow or the peak force is longer than the pile toe reflection, the formulae for field computation by what ever method be it CASE method, Impedance Method or TNO method will break down. How can the dynamic load test predict the pile capacity any more.
I would like to hear the comments from as many countries as possible to see their practices.
Thank you.
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Dynamic Load Test Should not Be Carried out on Short Piles. 