| 摘要 |
PURPOSE: A tip pressing device for checking and enhancing the tip bearing force of a cast-in-place concrete pile, a cast-in-place concrete pile with the same, and a construction method thereof are provided to enable a bearing test of a cast-in-place concrete pile without applying a load from the top of the concrete pile. CONSTITUTION: A tip pressing device for checking and enhancing the tip bearing force of a cast-in-place concrete pile comprises an upper plate(11) with a filler injection port(110) for injecting a filler(31), a pipe-shaped vertical member(13) coupled with the upper plate, and a pressing plate member(14) connected to the vertical member via an elastic connector(15) to close the cross section of the vertical member. The vertical member is formed with a side injection hole(12) for injecting a tip grouting material(32). A closed space is formed by the upper plate, the vertical member, the elastic connector, and the pressing plate member. An outer space open to the bottom of an underground hole(10) is formed by the outer surface of the pressing plate member and the vertical member. The pressing plate member pushes the tip grouting material toward the bottom of the underground hole, thereby generating the tip bearing force of a cast-in-place concrete pile and checking the generation of the tip bearing force. |
