INCLINED CONCRETE PILE DRIVING METHOD

PROBLEM TO BE SOLVED: To provide an inclined concrete pile driving method for driving an inclined pile by a crane having no leader mounted thereon, without raising damage including cracking at all, the method being very excellent in safety and cost efficiency. SOLUTION: The inclined concrete pile driving method is comprised of the following steps. In the first step, a work stand 2 having a guide 2a for guiding the concrete pile 1 so as to assume a necessary inclined angle, is prepared, and the concrete pile 1 is built into a sea bottom at the inclined angle, along the guide 2. In the following step, a protective pipe 3 having a hollow portion 3a with a length sufficient for covering the concrete pile 1 from a pile head 1a at least to the guide 2, and having a closed upper edge, is fitted onto the concrete pile 1 beginning from the pile head 1a, and then supported by the guide 2. In the final step, a hammer 4 hung by heavy equipment such as a crane 10 is mounted on a head of the protective pipe 3, and the concrete pile 1 is driven into the sea bottom down to a necessary depth by driving the hammer 4. COPYRIGHT: (C)2006,JPO&NCIPI