Step-pore drainage type asphalt pavement composite base structure

Abstract

The utility model discloses a step pore drainage formula asphalt pavement composite base structure, it includes roadbed concrete layer, the top of roadbed concrete layer is successively laid with medium -sized asphalt concrete layer, sticky layer emulsified asphalt layer and fine -grained asphalt concrete layer, the top of roadbed concrete layer is provided with the anchor hole, the inner chamber of anchor hole inserts the threaded anchor rod, the inner wall between threaded anchor rod and anchor hole is filled with anchoring glue layer in common, the top of roadbed concrete layer is laid with grid layer. The utility model fixes threaded anchor rod in the inner chamber of anchor hole through anchoring glue layer, and fixes grid layer on the top of roadbed concrete layer through nut block no. 1, further increase the contact area between medium -sized asphalt concrete layer and threaded anchor rod through the setting of sleeve block, can reach and add connecting rod between roadbed concrete layer and bottom layer asphalt layer, and further improve the stability of the connection between the two through the laying of grid layer.

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