Flexible base layer bituminous road surface

Abstract

The invention relates to the field of buildings and civil engineering, in particular to a flexible base layer bituminous road surface. The problem that in the relative technology, the road condition quality is poor is solved. The flexible base layer bituminous road surface comprises a surface layer, a base layer, a cushion layer and an earth base which are sequentially arranged from top to bottom. The surface layer comprises a bituminous concrete surface layer body, a bituminous macadam surface layer body and a bituminous injecting gravel surface layer body; the base layer is at least formed by evenly mixing a bituminous mixture, bituminous injecting macadam and ABS particles; the cushion layer comprises a grading macadam layer body which forms a dense structure by mixing macadam of different particle diameters and being subjected to compaction; the thickness of the flexible base layer bituminous road surface is gradually reduced in the direction from the middle of the flexible base layer bituminous road surface to the two sides in the width direction; and the flexible base layer bituminous road surface further comprises first reinforcing column bodies, first unchoking pipes and second unchoking pipes, wherein the first reinforcing column bodies and the first unchoking pipes are arranged between the earth base and the cushion layer, and the second unchoking pipes are arranged on the base layer. The flexible base layer bituminous road surface can be well used under the long-time and high-load condition.

Description

technical field [0001] The invention relates to the field of construction and civil engineering, in particular to a flexible base asphalt pavement. Background technique [0002] Pavement refers to one or more layers of road structure paved on the top surface of the roadbed with road construction materials for vehicles to drive directly on its surface. The pavement not only bears the load of the wheels, but also is affected by natural environmental factors. Due to the influence of traffic load and atmospheric factors on the pavement, it generally weakens gradually with depth, so the pavement is usually a multi-layer structure. Good quality materials are laid on the upper layer with higher stress, and poor quality materials are laid on the lower stress. The lower layer of the subgrade, thus forming the materials with different specifications and requirements on the subgrade, as well as the corresponding pavement structure. [0003] Existing pavements are generally rigid pave...

AI Technical Summary

Problems solved by technology

[0003] Existing pavements are generally rigid pavement or semi-rigid pavement, such pavement will produce residual deformation under repeated load, and pavement damage and cracks will occur over time

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