| 摘要 |
<p>PROBLEM TO BE SOLVED: To positively prevent the floating of multistage pipelines in underground buried piping and to sufficiently cope with the constitutive change of the upper stage pipelines. SOLUTION: A concrete foundation C1 with anchor bolts 12 embedded is formed on the bottom face of a ground hole U, and first stage pipelines are formed on the concrete foundation C1 through the bolts 12, a pipe cushion 15 and a pipe presser member 13 and embedded in concrete. Bolt rods 21 are connected to the anchor bolts 12 through nuts 20 to form the required stages of multistage pipelines on the first stage pipelines through the bolt rods 21, pipe cushions 15, 16 and pipe presser members 13. In the case of installing a water pipe P" or the like side by side with the multistage pipelines, the water pipe P" or the like is fastened by a fastening band 31 through the bolts 12. A foundation bed is thus formed of the first stage pipelines, and optional pipeline constitution is formed thereon. Concrete is placed to harden the peripheries of the multistage pipelines A. At this time, the multistage pipelines A are firmly fastened by the rods 21, so that floating can be prevented.</p> |
