Title:
ENERGY ABSORPTION STRUCTURE FOR UNDERGROUND PIPING WITH BRANCH PIPE
Document Type and Number:
Japanese Patent JP3872885
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the splash of waste water by providing a energy absorber with which waste water from the opening of a branch pipe collides in a inserted pipe laid in a tunnel.
SOLUTION: A branch pipe 4 is laid in a sleeve pipe 2 for the branch pipe line of a tunnel 1 with primary lining completed by a shield method. And one end of a fitting pipe 5 is connected to one end portion of the branch pipe 4, and the other end of the fitting pipe 5 is fixed to an opening 31 for connecting the fitting branch pipe of the inserted pipe 3 inside the tunnel 1. Further, within the inserted pipe 3, an energy absorber 8 to which waster water from the opening 41 of the lateral collides is installed. And the waste water collides with a portion facing the opening 41 of the lateral of a bottom wall 811 of a gutter body forming the energy absorber 8, flows down inside an attenuating passage and discharged to the inside of the inserted pipe 3. In this way, the waste water collides directly with the pipe bottom of the inserted pipe 3 thereby preventing splash or damage to the pipe bottom.
Inventors:
Shunji Higashi
Soma Takashi
Soma Takashi
Application Number:
JP35715297A
Publication Date:
January 24, 2007
Filing Date:
December 25, 1997
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
Sekisui Pipe Techniques Co., Ltd.
Sekisui Pipe Techniques Co., Ltd.
International Classes:
E03F3/04; B21D11/00; (IPC1-7): E03F3/04; B21D11/00
Domestic Patent References:
| JP9302755A | ||||
| JP7029085U | ||||
| JP61126240A | ||||
| JP61152085U |
Attorney, Agent or Firm:
Ninety-nine high autumn