| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a construction method of a cast-in-place concrete pile in which a removal performance of low-quality concrete is improved without prolonging a construction period when removing the low-quality concrete that may be generated in a head of the cast-in-place concrete pile, and a concrete collection apparatus applied for the construction method. <P>SOLUTION: In a concrete collector 10, a steel cage S is built in a drilling hole G1, an insertion hole 1b is provided through which a vertical reinforcement S1 is inserted, a freely opening/closing slit 1c is opposed to the hollow and a collection space 1d communicated to the slit 1c for collecting collected concrete is provided in a cylindrical body 1. A construction method includes the steps of installing the concrete collector 10 by passing the vertical reinforcement S1 through the concrete collector 10, piling concrete C to a middle level via the hollow, and collecting the concrete C pushed out by the side of the hollow into the collection space 1d by suspending down a weight 20 in the hollow, collecting the concrete collector 10 and the like and constructing a cast-in-place concrete pile P. <P>COPYRIGHT: (C)2013,JPO&INPIT |
