Patent
1976-08-02
1978-01-17
Shapiro, Jacob
52588, E02D 1700
Patent
active
040684822
ABSTRACT:
Precast stretchers in four basic configurations may be used to construct cribbing faces, end walls, and corners for virtually every retaining wall requirement. Each stretcher of the invention comprises an elongated body having two support heads with flat upper and lower surfaces for stacking the stetchers one on another. All the support heads are equally spaced and each head contains a vertical hole for receiving a steel tie rod that extends, in several threaded sections, from the footing to the top of the wall for tying together the stacked support heads and stretchers. Anchor rods for deadmen, bin wall anchorages, or rock bolts are connected to the vertical tie rods to form a rigid interlocked retaining structure.
REFERENCES:
patent: 1485381 (1924-03-01), Evers
patent: 1819026 (1931-08-01), Hobson
patent: 2828613 (1958-04-01), Wilson
Hilfiker Pipe Company
Shapiro Jacob
LandOfFree
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