PURPOSE: To enable a vibration-proofing wall to be efficiently built even on a soft ground, by a method wherein a non-permeable granular material is charged in a hole excavated in the ground, and foaming synthetic resin stock is poured thereon for curing.
CONSTITUTION: After a non-permeable granular material 5 is charged in a hole 2 for burying excavated in earth, foaming synthetic resin stock 6 is poured thereon for foaming and curing to form a vibration-proofing wall. This, since the granular material 5 is laid between the foaming synthetic resin stock 6 and percolated water 3 even if the percolated water 3 from a ground flows in the hole 2 for burying, prevents disturbance of foaming of the stock 6 because of the percolated water 3, and permits formation of foaming synthetic resin 60 which is excellent in foaming magnification and production of independent foam.
SHIOZAWA SHIYUUKOU
TOHO CHEM IND CO LTD