Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1993-12-17
1996-10-15
Bagnell, David J.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
405284, 52604, 52606, 522237, F02D 2902
Patent
active
055648657
ABSTRACT:
Concrete modules stacked in courses are used in making a retaining wall. Each module has unitary front, lateral, and bottom walls. The front wall may extend above the lateral walls. Each lateral wall has front ribs extending outwardly and inwardly and adjoining the front wall. Each lateral wall has back ribs extending outwardly and inwardly. In each intermediate course, the front and back ribs of each module partly support modules of the next course above and are partly supported by the front and back ribs of modules of the next course below. For post-tensioning of the retaining wall, plural elongate tensioning members are employed, each extending through an aperture of the bottom wall of one module of a lower course, between two modules of every other one of the intermediate courses, through an aperture of the wall of one module of an upper course. Geogrids can be positively and mechanically anchored to the retaining wall via battens retained by the inwardly extending back ribs of certain modules of selected courses.
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Bagnell David J.
Lagman Frederick L.
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