Patent
1976-11-02
1978-02-07
Taylor, Dennis L.
61 84, 61 85, E01G 504
Patent
active
040720217
ABSTRACT:
A tunnel driving and forming method with hydraulic boring machine through mixed ground of stable and unstable layers which is simplified in equipments, less in air contamination and noises and high in working accuracy. The method comprises steps of driving the hydraulic boring machine into the ground to bore a tunnel therein, installing segments sequentially against bored tunnel wall right behind the machine as the same advances, impregnating a back-filling agent between said bored tunnel wall and outer periphery of installed segments, removing the rearmost set of a certain number of sets of said installed segments behind the machine for circulatory use as long as the ground bored is stable, reinforcing exposed surface of said back-filling agent impregnated and set, and repeating respective said steps responsive to advances of the machine. The removed sets of the segments are normally circulatorily used as sequentially installed at the foremost position of said certain number of sets adjacent tail end of the machine so long as the ground being bored is stable but, when an unstable ground layer is reached, the installed segments at the position facing such unstable layer are remained as installed so as to be a reinforcing wall for the unstable layer.
REFERENCES:
patent: 360959 (1887-04-01), Greathead
patent: 1235233 (1917-07-01), O'Rourke
patent: 3260054 (1966-07-01), Lorenz
patent: 3334945 (1967-08-01), Bartlett
patent: 3561223 (1971-02-01), Tabor
patent: 3640076 (1972-02-01), Rees et al.
patent: 3830545 (1974-08-01), Sugden
Taylor Dennis L.
Tekken Construction Co. Ltd.
LandOfFree
Method of driving and forming a tunnel with hydraulic boring mac 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 driving and forming a tunnel with hydraulic boring mac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of driving and forming a tunnel with hydraulic boring mac will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1395448