Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring
Patent
1988-07-12
1989-08-08
Reese, Randolph A.
Hydraulic and earth engineering
Underground passageway, e.g., tunnel
Boring
405141, 405146, 405150, E21D 906, E21D 1100
Patent
active
048547760
ABSTRACT:
A process for lining a tunnel with concrete behind a tunnel excavator having a for front advanced along with an excavator head in which the concrete is forced between the surrounding subterranean geological structure and an inner tunnel-lining form through a form front which rides sealingly on the outer surface of the inner tunnel-lining form and on the inner surface of the shield. Simultaneously, the form front, which is longitudinally movable relative to the shield, moves forward relative to the inner tunnel-lining form. The form front is movable forward simultaneously balancing the friction forces occurring between the form front and the shield and the inner tunnel-lining form. Satisfactory results are obtained when the friction forces between concrete sections of a predetermined length are measured by moving the form front relative to the stationary shield and the inner tunnel-lining form during an interruption in concrete feed. An apparatus for carrying out the process includes a hydraulic spring device attached between the form front and the shield which is a part of a control loop having a control device connected to the concrete pump. The hydraulic cylinder device can comprise a plurality of double-cylinder piston-cylinder devices.
REFERENCES:
patent: 4391553 (1983-07-01), Weirich et al.
patent: 4621947 (1986-11-01), Babendererde et al.
patent: 4729693 (1988-03-01), Hentschel
patent: 4768898 (1988-09-01), Babendererde et al.
patent: 4769192 (1988-09-01), Cerutti
patent: 4798267 (1988-12-01), Babendererde et al.
Babendererde Siegmund
Hentschel Volker
Mahmens Olaf
Versteegen Clemens
Dubno Herbert
Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann
Olsen Arlen L.
Reese Randolph A.
LandOfFree
Process and apparatus for lining a tunnel with concrete does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for lining a tunnel with concrete, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for lining a tunnel with concrete will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-902054