Title:
洪水対策機能を持つ共同溝
Document Type and Number:
Japanese Patent JP6869457
Kind Code:
B2
Abstract:
To provide a common ditch that has additional functions and is easy to maintain despite of a compact and simple structure thereof.SOLUTION: A common ditch 1 has a wide and deep rainwater basin and has a shape as if rainwater basins were connected side by side, which can be installed even in a narrow road by taking in a space occupied by a road gutter. A water collection lid 2 on a surface of the common ditch is also a manhole cover as a lifeline inspection port, as well as a ventilation port for the common ditch. Since the lid is used as a drainage lid as well as an inspection port, many large ventilation holes can be provided, and only natural ventilation inside the common ditch is required, and forced ventilation inside the common ditch is not required. The inside of the common ditch is largely divided into upper and lower parts; the lower part is a rainwater ditch, and a basin for finally collecting rainwater is provided on a bottom part thereof. A part of a catch basin 4 is connected to a sewer pipe for rainwater, and the catch basin that is not connected to the sewer pipe for rainwater is used as an infiltration basin. The infiltration basin mitigates discharge to rivers, etc., and serves as measures against heat islands to maintain water retention.SELECTED DRAWING: Figure 1
Inventors:
Jiro Kihara
Application Number:
JP2018174238A
Publication Date:
May 12, 2021
Filing Date:
August 25, 2018
Export Citation:
Assignee:
Jiro Kihara
International Classes:
E03F5/10; E03F1/00
Domestic Patent References:
| JP6154049U | ||||
| JP11286983A | ||||
| JP2006118265A | ||||
| JP20024393A |