advantages and disadvantages of dynamic load testing and statnamic load
P. Middendorp, G.J.J. van Ginneken, TNO Profound
R.J. van Foeken, TNO Building and Construction Research
International Conference on the Application of Stress Wave Theory to Piles,
Sao Paulo, Brazil, 2000
capacity testing by high strain dynamic loading methods is widely applied
because of its economy and efficiency compared to static load testing
methods (SLT). Frequently applied dynamic loading methods are dynamic load
testing (DLT) and statnamic testing (STN). The paper will deal with the very
often raised question in practice: What are the advantages and disadvantages
and when to apply DLT and STN when pile type and soil conditions are known.
Special attention is given to DLT on cast in situ piles, and complicating
factors like limited knowledge of concrete material properties and pile
shape. The suitability of DLT and STN is discussed for cast in situ piles
and driven pre-cast piles by the evaluation of reliability, economy,
mobilization of capacity and the chance on pile damage.