PURPOSE: To maintain the stability of the laying of precast concrete blocks such as retaining wall blocks, water channel blocks, box culverts, etc.
CONSTITUTION: When precast blocks such as retaining wall blocks, water channel blocks, box culverts, etc., are installed, slopes as the earth-pressure receiving surfaces of a backing 13 are adjusted, projections such as projecting reinforcements 5 are mounted on horizontal bearing surfaces 2 as top faces on the backing 13, and concrete slabs 1 with the slopes 3 inclined in the direction that load is received or the projection sections 4 are set up on a base. Or foundation concrete is placed onto the backing 13 so that the top faces are used as the horizontal bearing surfaces and have the projections such as the projecting reinforcements, and precast blocks with the arrangement of bars 17 are installed into concrete placing holes 15, in which bottoms are opened, at regular intervals on the foundation concrete. Ready-mixed concrete is placed from the concrete placing holes 15 by cast-in-place.
| JPH086095 | [Name of device] Seawall for fish reefs |
| JPS62233318 | CONCRETE SINK FRAME |
MASUDA RITSUKO
UEMURA NORIO
YABUKI TAKASHI
MIAMA NORIYUKI
MASUDA RITSUKO
UEMURA NORIO