| 摘要 |
<p>PROBLEM TO BE SOLVED: To surely prevent the leaking from the three dimensional piping section of an embedded domestic supply line, as an anti seismic countermeasure for a gas conductor and a water supply conductor as the object. SOLUTION: Around the three-dimensional piping section 3 of an embedded domestic supply line 2, a foaming space whose volume is regulated by covering its upper surface with a form is excavated and formed, a material bead of a foaming resin is foamed processed by a heated gas in the foaming space, and a leakage at the three-dimensional piping section in the supply line whose whole periphery is surrounded airtightly by a foamed material 9 can be prevented.</p> |
