| 摘要 |
PROBLEM TO BE SOLVED: To provide a drain pipe which can hardly cause expansion/contraction and torsion thereof even when buried in the ground using a rock drill, facilitate burying and connection work, and prevent breakage and degraded draining function, and to provide a drain pipe burying method. SOLUTION: A jacket pipe 1 is connected to a lost bit 3 arranged at a front end of a rod 2, and buried in the ground according to advancing of the lost bit 3 that advances upon transmission of the rotational excavation force of a rock drill 8, that is transmitted via the rod 2. The jacket pipe 1 is provided with a pipe jacket 11, and a front end cap 12 and a rear end cap 13 are provided to the front end and the rear end of the pipe jacket. Further the jacket pipe has steel wires 16 extending between the front end cap 12 and the rear end cap 13. COPYRIGHT: (C)2010,JPO&INPIT
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