METHOD OF TESTING VERTICAL LOAD ON EXISTING PILE AT DEPTH LOWER THAN GROUNDWATER LEVEL

摘要

PROBLEM TO BE SOLVED: To provide a method of testing a vertical load on an existing pile which measures a bearing force the an upper end of the existing pile and the peripheral surface friction of the same at a depth lower than a groundwater level under existing conditions or conditions after reusing, to thereby evaluate the suitable bearing performance of the pile.;SOLUTION: A pile head is edge-trimmed form a foundation member at the pile head peripheral location of the foundation member which involves the pile head of the existing pile to be tested, or at a neighboring location separated from the pile head peripheral location except for the lower end of the foundation member. Then a vertically slidable joint member is set in a recess or on a cut area formed by the edge trimming for water cutoff finishing, and a loading testing device is built up at the upper end of the existing pile, and a vertical load is applied to the existing pile. Herein, residuals of the foundation member adhering to the pile are firstly broken, and then the bearing performance of the existing pile is measured.;COPYRIGHT: (C)2006,JPO&NCIPI