| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an embedded pipe repairing device and an embedded pipe repairing method that can repair deformation of an embedded pipe adaptively to calculated deformation, curving, bending, etc., of the embedded pipe without digging the ground for the embedded pipe and letting an operator enter the embedded pipe. <P>SOLUTION: An embedded pipe repairing device 1 includes a main-body part 3 which can move in a, embedded pipe 2 embedded in the ground; a boring unit 4 which bores a first through hole 7 at a predetermined position in a repair area of the embedded pipe 2 and a second through hole 8 at a different position from the first through hole 7; a removal unit 5 which removes the earth and sand in an area (hereinafter "removal area") outside the embedded pipe 2 and at a periphery of the first through hole 7, through the first through hole 7; and an injection unit 6 which insert a storage bag 61 into a gap outside the embedded pipe 2 and at a periphery of the second through hole 2 through the second through hole 2, and injecting an expanding agent into the storage bag 61. The storage bag 61 is larger in expansion amount in a direction crossing the embedded pipe 2 than in a direction parallel with the embedded pipe 2 while inserted into the gap. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
