Method of and apparatus for concrete tunnel lining

Details Method of and apparatus for concrete tunnel lining Method of and apparatus for concrete tunnel lining

1987-02-19

1988-12-06

Corbin, David H.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

264 25, 405150, E21D 906, E21D 1110

Patent

active

047892676

ABSTRACT:
An apparatus for making a tunnel lining from concrete in a single operation with a tunnel excavator comprises a tunnel lining form consisting of a plurality of tunnel lining form segments and a form front adjacent the tunnel excavator and a tunnel lining circular space between the form and the ground. The concrete is selected so that it remains workable for more than two hours at a temperature of about 20.degree. C. but sets to a nonworkable state after 10 to 30 minutes upon heating to a temperature in the range of substantially 40.degree. C. to substantially 70.degree. C. The concrete is heated in a pipe section proximal to the compartment into which it is introduced by direct introduction of electrical energy into the pipe section.

REFERENCES:
patent: 3449213 (1969-06-01), Knapp et al.
patent: 3452176 (1969-06-01), Levinson
patent: 3594530 (1971-07-01), Wiegman
patent: 3827244 (1974-08-01), Walbrohl
patent: 4018642 (1977-04-01), Pike et al.
patent: 4222681 (1980-09-01), Khodosh et al.
patent: 4259560 (1981-03-01), Rhodes
patent: 4319856 (1982-03-01), Jeppson

Affiliated with

Also associated with

Rating

Method of and apparatus for concrete tunnel lining does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of and apparatus for concrete tunnel lining, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for concrete tunnel lining will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1491102