Title:
人孔および人孔の更生方法
Document Type and Number:
Japanese Patent JP6876554
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a manhole capable of preventing a load applied to an upper cylindrical body from the ground from transmitted to a lower cylindrical body.SOLUTION: A manhole 1 has a cylindrical lower cylindrical body 10 which is embedded in the ground and extends to a vertical direction, and an upper cylindrical body 20 that is arranged on the lower cylindrical body 10 and of which the upper end opening opened to the ground G is blocked by a lid body includes: a coated cylinder 30 that covers an inner peripheral surface of the lower cylindrical body 10 and of which the upper end projects upward from the lower cylindrical body 10; an intervention layer 40 arranged in the outside in a radial direction in the upper part of the coated cylinder 30; and an annular pedestal 50 which is mounted on the upper surface of the intervention layer 40 and surrounds the upper end of the coated cylinder 30 from the outside in the radial direction, where the upper cylindrical body 20 is mounted on the upper surface of the pedestal 50.SELECTED DRAWING: Figure 1
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Inventors:
Nakamura Rin
Application Number:
JP2017136492A
Publication Date:
May 26, 2021
Filing Date:
July 12, 2017
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
E02D29/12; E03F5/02; E03F5/10
Domestic Patent References:
| JP3198669U | ||||
| JP11021931A | ||||
| JP2005098068A | ||||
| JP49054340U |
Foreign References:
| US20140137508 |
Attorney, Agent or Firm:
Nishizawa Kazumi
Yuichiro Kawagoe
Makiko Otsuki
Hiroshi Yamaguchi
Yuichiro Kawagoe
Makiko Otsuki
Hiroshi Yamaguchi