High-level wide-range pavement with internal drainage structure and construction method thereof

Abstract

The invention discloses a high-level wide-range pavement with an internal drainage structure and a construction method thereof. The drainage design is performed according to different requirements of an overtaking lane and a traffic lane of the high-level wide-range pavement for drainage, and a scheme that the overtaking lane and the traffic lane are separately paved is adopted; the pavement surface layer of the overtaking lane is made of an open-graded wearing layer permeable material, the underside base layer is made of a dense-graded asphalt mixture, the water-proof treatment is carried out at the middle bonding part; the pavement surface layer of the traffic lane is made of a dense-graded asphalt mixture, the underside base layer is made of an open-graded wearing layer permeable material, and the water-proof treatment is carried out at the middle bonding part of two base layers; the base layer under the traffic lane is properly extended to the base layer under the overtaking lane in a width direction, and the structure layers of the overtaking lane and the traffic lane are subjected to water-proof treatment. The high-level wide-range pavement with the internal drainage structure can be used for solving the problems that the large-aperture drainage pavement surface having a rapid drainage function can be compacted easily under the action of the heavy truck and the drainage capacity can be lost finally. The drainage requirements of common vehicles and overload vehicles can be considered by a specific pavement drainage mode.

Description

technical field [0001] The invention relates to a road pavement structure, in particular to an efficient internal drainage design of a high-grade wide-width pavement structure. Background technique [0002] Drainage of high-grade highways is crucial to driving safety. At present, the pavement drainage system mainly used is mainly divided into three categories, namely pavement surface drainage, median drainage and internal drainage of pavement structure. For high-grade wide-width pavement, the use of pavement surface runoff drainage and central divider drainage will easily lead to low drainage efficiency, which will lead to water drift and water slippage, which will affect driving safety and even cause traffic accidents. Therefore, using the internal drainage of the pavement structure is an ideal drainage method for high-grade wide-width pavement. [0003] France is the first country to set drainage in the pavement structure. In the 1970s and 1980s, France successively bui...

AI Technical Summary

Problems solved by technology

However, it is still a drainage structure with a single function. It has become an urgent technical problem to design a drainage structure in the pavement that can meet the different requirements for drainage of high-grade wide pavement overtaking lanes and driving lanes.

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