Tunnel construction

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Sectional

Patent

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Details

405136, 405152, E21D 1014

Patent

active

048894486

ABSTRACT:
A method of construction of tunnels under water by pre-fabricating them in short sections with their ends adapted to make fluid-tight joints with adjacent sections, transporting, sinking and joining them together and forming the sections into sets by installing a bulkhead in the last section of each set and dewatering the sets and tying the sections together.

REFERENCES:
patent: 715768 (1902-12-01), Dunham
patent: 1678127 (1928-07-01), Smith
patent: 3005314 (1961-10-01), Cunninghma
patent: 3656309 (1972-04-01), Bultema
patent: 4075855 (1978-02-01), Meldner
patent: 4522532 (1985-06-01), Fedrick
patent: 4695204 (1987-09-01), Bell

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