Drainage groove reinforced through perpendicular crossing of double anchor rods
The invention discloses a drainage groove reinforced through perpendicular crossing of double anchor rods. Transversal anchor rods and vertical anchor rods are arranged on a roadbed slope surface of the drainage groove, and are mutually parallel; anchor rod nodes are formed at the perpendicularly-cr...
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Format: | Patent |
Sprache: | chi ; eng |
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