Trapezoidal divider wall for use in shaft construction

Details Trapezoidal divider wall for use in shaft construction Trapezoidal divider wall for use in shaft construction

1984-06-26

1988-02-09

Corbin, David H.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Vertical

52608, 405151, E21D 504

Patent

active

047238720

ABSTRACT:
A curtain wall (12) used to divide the shaft in a shaft construction (10) is made of panels (26) in the shapes of parallelograms. Side edges (28 and 30) of the panels (26) are received in channels (18 and 20) in the peripheral wall (16) of the shaft construction. These side edges are parallel to each other, and the perpendicular projections of each side edge are substantially non-overlapping with the other side edge. The result is that the panels can be lowered lengthwise into place and then rotated into the proper orientation. The panels can therefore be lowered through smaller openings than rectangular panels can, and they do not have to be lowered by "chivvying," as rectangular panels do.

REFERENCES:
patent: 412946 (1889-10-01), Cantwell
patent: 1370686 (1921-03-01), Dodson
patent: 1982308 (1934-11-01), Kahn et al.
patent: 2304196 (1942-12-01), Oakley
patent: 2306468 (1942-12-01), Rinderknecht
patent: 3417568 (1968-12-01), Henderson
patent: 3435619 (1969-04-01), McGuire
patent: 3495369 (1970-02-01), Laroche

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