Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Patent
1988-05-11
1989-12-12
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Repair, replacement, or improvement
405141, 299 67, E03F 306, F16L 102
Patent
active
048863963
ABSTRACT:
A method for renewing an existing pipeline comprises the steps of advancing a shield tunnelling machine from one end of an existing pipe defining the existing pipeline to the other end thereof, excavating at least the existing pipe by the machine and disposing a new pipe in an excavated spot while the machine is advanced, whereby the existing pipeline is renewed by breaking the existing pipe embedded in the ground while laying the new pipe therein. An existing pipeline renewing apparatus embodying the method described above comprises a shield tunnelling machine for excavating an existing pipe embedded in the ground so as to define an existing pipeline and a means for disposing a new pipe in a spot excavated by the machine. Accordingly, since the new pipe is disposed while excavating the existing pipe by the shield tunnelling machine, it is not necessary to excavate the spot, in which the existing pipe to be renewed is laid, by an open cut method.
REFERENCES:
patent: 3181302 (1965-05-01), Lindsay
patent: 3730283 (1983-05-01), Kostyleu et al.
patent: 4311411 (1982-01-01), Akesaka et al.
patent: 4505302 (1985-03-01), Streatfield et al.
patent: 4507019 (1985-03-01), Thompson
patent: 4553877 (1985-11-01), Eduardsen
patent: 4558906 (1985-12-01), Takamiya et al.
patent: 4634313 (1987-01-01), Robbins
patent: 4648746 (1987-03-01), Abinett
patent: 4674914 (1987-06-01), Wayman et al.
patent: 4692062 (1987-09-01), Akesaka
patent: 4732222 (1988-03-01), Schmidt
Kabushiki Kaisha Iseki Kaihatsu Koki
Olsen Arlen L.
Taylor Dennis L.
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