Influence of Angular Thrust in the Measurement of Torque in the SPT-T
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Skin friction of piles can be calculated with the torque measurement in the Standard Penetration Test, SPT-T, proposed by . The purpose of this paper is to provide understating of the influence of angular thrust and rotational speed in this measure. It was used the database of  research studying three different site locations in Brazil containing simultaneous measurements of torque and its rotational speed. In addition, the elaboration of curves and statistical analysis made possible to have a better comprehension of the angular thrust behavior before and after the maximum torque is obtained as well as observe patterns and a predominant rotational speed for this test procedure.