Title:
DRAINAGE SYSTEM
Document Type and Number:
Japanese Patent JP2023009800
Kind Code:
A
Abstract:
To provide a drainage system capable of reducing an amount of excavated soil by suppressing depth of a pit for installing a regular drainage tank and a disaster drainage tank while facilitating discharge of drainage during regular use.SOLUTION: A regular drainage tank 2 that stores regular waste water and a disaster drainage tank 4 that is communicated with the regular drainage tank 2 through a communication part 3 and stores waste water flowing in from the regular drainage tank 2 through the communication part 3 in an event of a disaster are provided in a lower part of a building, a floor of the regular drainage tank 2 is configured as a gradient floor having a water gradient, and the floor of the disaster drainage tank 4 is configured as a non-gradient floor having no water gradient.SELECTED DRAWING: Figure 1
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Inventors:
HIASA HIDENARI
HAGIHIRA TAKASHI
MIKI RYOKO
HAGIHIRA TAKASHI
MIKI RYOKO
Application Number:
JP2021113382A
Publication Date:
January 20, 2023
Filing Date:
July 08, 2021
Export Citation:
Assignee:
TAKENAKA KOMUTEN CO
International Classes:
E03B11/00
Attorney, Agent or Firm:
Masahiro Miyaji