Construction of underground galleries

Details Construction of underground galleries Construction of underground galleries

1977-09-23

1979-04-24

Taylor, Dennis L.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Cut and cover

405132, F16L 922, E01G 506, E21D 900

Patent

active

041509102

ABSTRACT:
A method of constructing a gallery in which a trench is excavated and the gallery is either constructed in or lowered into the excavation. The gallery is braced internally to withstand external loads applied. Thereafter a controlled backfill is applied around and over the gallery in such manner that with removal of the bracing the backfill acts effectively to form an arch above the gallery which together with the gallery is sufficient to support the overlying covering material up to the ground surface.

REFERENCES:
patent: 986068 (1911-03-01), Knapp
patent: 1644476 (1927-10-01), Kennedy
patent: 1722038 (1929-07-01), Dougherty
patent: 3508406 (1970-04-01), Fisher
patent: 3774683 (1973-11-01), Smith et al.
patent: 3891186 (1975-06-01), Thorsell
patent: 4050255 (1977-09-01), Ahlgren
patent: 4068488 (1978-01-01), Ball

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