Permeable pavement structure and construction method thereof

Abstract

The invention belongs to the technical field of road engineering, in particular to a permeable pavement structure and a construction method thereof. The permeable pavement structure comprises cover plates, columns, connecting pieces and gravel layers; wherein the gravel layers are laid on the soil foundation; the cover plates are laid on the gravel layers; permeable slots are formed at the middleparts of the cover plates; through holes are formed at the edges of the cover plates; the columns are inserted in the gravel layers and the soil foundation in the connecting positions of the cover plates; the upper end faces of the columns are flush with the upper surfaces of the gravel layers; a plurality of connecting holes are formed in the upper end faces of the columns; and the connecting pieces pass through the through holes for being inserted into the connecting holes and used for locating the cover plates. The invention has the advantages that the pavement flatness is ensured, and enough carrying capacity is provided, thereby being safe and comfortable for pedestrians to pass; rainwater can be quickly drained to the place beneath the pavement, thereby reducing the gathered water onthe pavement; and the gravel layers not only play the water storage function, but also provide support force for the cover plates, so that the rainwater in the gravel layers can gradually permeate into the soil foundation, thereby replenishing groundwater.

Description

technical field [0001] The invention belongs to the technical field of road engineering, and in particular relates to a permeable pavement structure and a construction method thereof, which are suitable for roads, squares, residential areas, parks, etc., and are applied to roads where pedestrians pass, such as sidewalks in roads and pedestrian areas in squares , walking paths in the park, etc. Background technique [0002] With the continuous popularization of the concept of sponge city, the use of permeable structures for sidewalks has gradually become the consensus of people, because the use of permeable structures for sidewalks has at least the following functions and meanings: it reduces the runoff of rainwater on the road surface, which is conducive to pedestrian travel; it reduces the flow of rainwater into stormwater pipes, The pressure of drainage pipes and channels is relieved; rainwater seeps into the soil foundation through the permeable structure, which can reple...

AI Technical Summary

Problems solved by technology

Due to the small porosity of permeable concrete bricks and sand-free concrete, the water permeability is limited, and the rainwater is not easy to enter the gravel layer through the two layers (permeable concrete bricks and sand-free concrete) with poor water permeability; as the sidewalk is built and passed, the rainwater carries sediment It will gradually block the gaps in the permeable concrete bricks, which will easily cause the permeable function of the permeable concrete bricks to fail and cannot be restored.

Commonly used permeable structures, in addition to poor water permeability, also have shortcomings: In order to ensure the water permeability of the structure, the layers of commonly used permeable structures lack sufficient bonding, and each layer is easy to loose under the action of external force. After a period of time, permeable concrete bricks will often appear loose, broken, road surface subsidence and other diseases, not only the pedestrian experience is poor, but also the cost of later maintenance is increased

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