EXECUTION METHOD OF ARCH CULVERT

Title:

EXECUTION METHOD OF ARCH CULVERT

Document Type and Number:

Japanese Patent JP3760010

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To shorten the term of works by conducting waterproofing works without waiting the hardening of concrete and eliminating the need for scaffold assembly and removal works for waterproofing works.
SOLUTION: A sheet 1 being bulged in an arched shape by air pressure and conducting timbering and being used for molding a building frame is employed as forms for forming arched building-frame concrete 12. Since a waterproofing sheet 13 can be laid on the sheet 1 for molding the building frame before the sheet 1 is bulged, a work platform for executing the waterproofing sheet 13 is unnecessitated. Since the waterproofing sheet 13 is brought to an integrally joined state with the arched building-frame concrete 12 formed by spraying concrete onto the outer circumference of the waterproofing sheet 13, the placing of the arched building-frame concrete and the waterproofing works of the arched building-frame concrete are conducted simultaneously.

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Inventors:

Eitaro Yoshitomi
Kikuchi Minoru
Mitsuo Mochizuki

Application Number:

JP33314796A

Publication Date:

March 29, 2006

Filing Date:

November 29, 1996

Export Citation:

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Assignee:

Fujita Co., Ltd.

International Classes:

E02B9/06; E02F5/10; F16L1/038; (IPC1-7): E02B9/06; E02F5/10; F16L1/038

Domestic Patent References:

JP47014919A
JP1295974A
JP4111873A
JP121731C2
JP6505787A

Attorney, Agent or Firm:

Yoichi Nomoto

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