| 摘要 |
PROBLEM TO BE SOLVED: To recover connection metal fixtures after driving sheet piles into the ground with high pressure hoses for PC sheet piles connected to each other in simple structure beforehand. SOLUTION: This sheet pile jet pipe is provided with circumferential rings 101 and 111 in the outer periphery of the end section of the upper and lower connection sections of a pipe, and pins 21a and 21b, to the external periphery of which two piece hermetic casings 10a and 10b are fitted to stick these circumferential ring 101 and 111 to each other by pressure and which can be inserted into and pulled out from connection holes 14a, 12b, 12a and 14b, which combine the casings 10a and 10b in a body. A communication holes 102 is provided to the gaps between the casings 10a and 10b and the circumferential rings 101 and 111 for supplying pressure water to them, and lifting bolts 31a and 31b are secured to the casings 10a and 10b to lift sheet piles to the ground. COPYRIGHT: (C)2004,JPO
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