| 摘要 |
<p>PURPOSE:To perform repairing easily in a short time by injecting a filler made of granular foaming resin and a curing agent into an underground space formed being washed/dug by the leakage of a buried pipe from the ground and hardening the filler in the space. CONSTITUTION:A filler 4 made of granular foaming resin of foaming styrene and the like and a curing agent is injected into an underground space 2 formed being washed/dug by leakage from a buried pipe 1 by an injecting machine 3 on the ground. The filler 4 is hardened so as to prevent the leakage from the buried pipe 1. The injecting machine 3 performs the mixing of the curing agent and the granular foaming resin 6 in a mixing drum 7 and the injection into the space 2 by a force-feeding pump 8 through a center runner 9. As a result, ground subsidence caused by earth load, vehicle load, and the like can be prevented. Moreover, repair can be performed in a short time without drilling the ground.</p> |
