Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Reexamination Certificate
2006-08-08
2006-08-08
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
C405S286000, C405S262000
Reexamination Certificate
active
07086811
ABSTRACT:
The present invention relates to a system and method for constructing a pre-stressed modular construction for supporting or retaining an applied load. In particular, the present invention relates to a system and method for pre-stressed modular retaining walls. The system comprises a plurality of header stacks constructed from a variety of header units. The header stacks are coupled by structural members. Active reinforcement elements are used to induce a pre-stressing force into the header stacks to support or retain the applied load. A method for constructing the modular construction is provided.
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DeLeuw, Cather & Co. illustrations/blueprints: “Division of Highways: Typical Wall Sections,” “Division of Highways: Retaining Wall Details,” “Division of Highways: Alignment Device & Misc. Wall Details,” “Division of Highways: Double T Retaining Wall Details (Type I),” Division of Highways: Double T Retaining Wall Details (Type IV-S & I), Sheets I-117, I-118, I-119, I-121, I-122.
Patent Abstracts of Japan, vol. 010, No. 227, Aug. 7, 1986 & JP 61 060929A, Mar. 28, 1986 abstract.
CGL Systems LLC
Lagman Frederick L.
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