砂れき層に中掘り工法で打設された長尺PHC杭のスタナミック試験

概要

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出版者照会中．金沢大学理工研究域環境デザイン学系Comparable tests of a static load test (SLT) and a rapid load test called Statnamic (STN) on a PHC pile constructed in a gravel layer were carried out in 1993. A gas explosion pressure is applied to the pile head in the STN test without the use of reaction piles. The duration of the Statnamic loading event is approximately 100ms. The applied force and displacement are recorded at the pile head during the STN test. The velocity and acceleration of the pile head are derived from the measured displacement. Relatively large velocity and acceleration were observed in this particular STN test. The load-displacement curve directly measured in the STN test was deviated from that obtained from the SLT. Dynamic effects due to inertial force of the pile body and penetration dependent force were adjusted by means of an interpretation method, unloading point method, of the STN test. Thus derived load-displacement curve was comparable with the SLT curve. Axial force distributions in the SLT and the STN test were also very similar.
社団法人日本建築学会の論文
1996-01-30