| 摘要 |
PURPOSE: An under drain block is provided to improve the solidity and the joint force of the connection part by pouring and curing mortar concrete into a connection part. CONSTITUTION: An under drain block(100) comprises a main body(110), a packing member(120), and a combining member(130). The main body comprises a joint(113) including a joint rim insertion groove, and a flange. The packing member is attached to the joint rim and seals the gap between the junction parts. The combining member is installed in the main body. |
