| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pipe burying method capable of securely increasing the diameter of a pilot hole correspondingly with various types of soil and stabilizing an operation for burying a buried pipe. <P>SOLUTION: A multiple types of plate-like members 9 are prepared, a plate-like member matching a soil quality is selected from the multiple types of plate-like members 9 based on the investigation on soil at a buried place, and the selected plate-like member 9 is fitted to a reamer body 8 to form a reamer 6 matching the soil quality. Then, the reamer 6 is fixed to the tip of a rod 3 in the pilot hole 5, the rod 3 is extracted from the pilot hole 5 while the reamer 6 is rotated together with the rod 3 to bury the buried pipe 1 connected to the reamer hole 6 in the ground. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
