Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1991-11-26
1994-09-27
Friedman, Carl D.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
405284, 405262, 52570, 52599, 52604, 52605, 52606, 52612, 52426, E02D 2700, E02D 2900, E02D 500
Patent
active
053502566
ABSTRACT:
A retaining wall system is constructed in several distinct layers. Each layer is formed of a side-by-side arrangement of I-shaped subassemblies with backfill chambers defined between each pair of subassemblies. Each subassembly is constructed of generally planar elongated concrete blocks which interconnect to laterally secure the blocks to one another. Interconnections are provided by dovetail joints in which a tongue is vertically slid into a groove to prevent lateral separation. The dovetail elements extend only partially across the face of each block so that the block defining the groove is not excessively weakened by the groove.
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6-page brochure from GEOdynamics Erosion Control Systems, Indianapolis, Ind.
4-page brochure from Risi Stone Ltd., Gormley, Ontario, Canada, entitled DURA-CRIB.RTM., 1985.
2-page brochure from Risi Stone Ltd., Gormley, Ontario, Canada, entitled DURA-HOLD.RTM., 1985.
Canfield Robert J.
Friedman Carl D.
Westblock Products, Inc.
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