| 摘要 |
ACCORDING TO THE PRESENT INVENTION, A BLOCK PANEL (10A,10B) FOR USE IN A RETAINING WALL FORMED FROM TIERS OF BLOCK PANELS (10A,10B), COMPRISES ESSENTIALLY ONE ORTHOGONAL OUTER PLATE (11A,11B) WHICH IS INTEGRALLY FORMED WITH AN ORTHOGONAL INNER PLATE (12A,12B),THE TWO PLATES (11A,12A;11B,12B) BEING STAGGERED FROM EACH OTHER; A POLYGONAL STEM (14A,14B) WHICH IS INTEGRALLY FORMED AT THE BACK OF THE BLOCK PANEL (10A,10B) SUBSTANTIALLY AT THE MIDDLE OF THE INNER PLATE (12A,12B), WITH ITS TOP PORTION DISPOSED SLIGHTLY BELOW THE TOP EDGE OF THE INNER PLATE (12A,12B), AND ITS TOP PORTION BEING NARROWER THAN ITS BASE; AND A PIECE OF ORTHOGONAL WIRE MESH (13A,13B) WHICH IS BEING INTEGRALLY CAST AT THE SAME LEVEL AS THE TOP EDGE OF THE INNER PLATE (12A,12B). IN ONE EMBODIMENT, THE TWO PLATES (11A,12A) ARE VERTICALLY DISPOSED TO THE BASE OF THE POLYGONAL STEM (14A). IN ANOTHER EMBODIMENT, THE TWO PLATES (11B, 12B) ARE INCLINELY DISPOSED TO THE BASE OF THE POLYGONAL STEM (14B). A PLURALITY OF DRAINAGE OPENINGS (16) IS DISPOSED ON THE INNER AND OUTER PLATES (12B,11B) AT THE FRONTAL SURFACE OF THE SECOND EMBODIMENT.
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