Method of making a huge elongated space of square or rectangular

Details Method of making a huge elongated space of square or rectangular Method of making a huge elongated space of square or rectangular

1992-04-03

1993-05-18

Corbin, David H.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Boring

405146, 4051501, E21D 900

Patent

active

052115070

ABSTRACT:
Disclosed is a method of making a huge elongated space of square or rectangular cross section under the ground. The outer shell of the huge elongated space is built in the form of integral arrangement of lateral shell-units having shielded passages therein. Such a huge underground space can be made without requiring any large-scale equipments on the ground. The huge outer shell can be made with accuracy and efficiency by skiving and jointing adjacent parallel lateral shell-units and by using selected lateral passage of shell-units to discharge the soil or mud removed in making the underground space.

REFERENCES:
patent: 3631680 (1972-01-01), Thomson
patent: 3916630 (1975-11-01), Arsuaga
patent: 3968655 (1976-07-01), McGlothlin
patent: 4147452 (1979-04-01), Ogasawara et al.
patent: 4166509 (1979-09-01), Ueno et al.

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