Patent
1974-01-25
1976-09-28
Shapiro, Jacob
52169R, 52742, E02D 518, E02D 536
Patent
active
RE0289779
ABSTRACT:
A retaining wall for supporting the embankment of a cut excavation. The wall structure consists of a skin of concrete, an array of rows and columns of dowels or tendons extending from the skin into the cut embankment and rows of wale beams at the juncture of dowels and the face of the skin tying the components together. The retaining wall is built as the cut proceeds. A cut to a selected depth is covered by a skin of pneumatically applied concrete. The dowels are formed as reinforcing, grout-filled boreholes and the wale beams are formed as reinforced concrete members pneumatically sprayed against the skin.
REFERENCES:
patent: 1762343 (1930-06-01), Munster
patent: 3371494 (1968-03-01), Lagerstrom
Lowe Frank C.
Shapiro Jacob
Shotcrete Engineering, Ltd.
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