CONSTRUCTION OF UNDERWATER FOUNDATION

摘要

PURPOSE:To attain the stable setting of a rubble-stone assemblage easily along the undulation of the surface of the rubble-mound by a method in which the surface of the rubble-mound is covered with a rubble stone assemblage formed by packing rubble stones into a netted bag, and underwater concrete is placed onto the rubble stone assemblage. CONSTITUTION:Rubble stones are put on the bottom ground 1 under water to form a rubble-mound 2, the rubble-mound 2 is leveled off, and a caisson 3 is installed. A rubble stone assemblage formed by packing rubble stones into a netted bag 5 is set on the surface of the rubble-mound 2 to cover the whole surface of the rubble-mound 2. Underwater concrete 10 is placed into the covering layer of the rubble stone assemblage 6 through a hose 9 by the concrete pump 8 of a working base ship 7 and hardened to solidify them integrally.