LOADING TEST METHOD FOR CAST-IN-PLACE PILE

摘要

PROBLEM TO BE SOLVED: To provide a loading test method for a cast-in-place pile, which enables an accurate test result to be obtained by surely separating a standpipe and the cast-in-place pile from each other.;SOLUTION: In this loading test method for the cast-in-place pile, a pile forming hole 3, the diameter of which is smaller than the inside diameter D1 of the standpipe 2, is almost concentrically drilled below the standpipe 2; a reinforcing bar 4 is inserted into the pile forming hole 3; concrete 5 is placed for the construction of the cast-in-place pile 1; and a jack 8 makes a downward push-in force acts on the cast-in-place pile 1 via a pile 6 for a loading test, which is connected to an upper part of the cast-in-place pile 1, so that the loading test can be performed. The pile 6 for the loading test is prepared, and the cast-in-place pile 1 is constructed by hardening the concrete 5 which is placed in the pile forming hole 3. In this case, a lower end of the pile 6 for the loading test is inserted into the pile forming hole 3; the pile 6 for the loading test and the cast-in-place pile 1 are connected together; and subsequently, the loading test is performed.;COPYRIGHT: (C)2007,JPO&INPIT