A road surface rainwater collection and regulation system

Abstract

The application relates to the technical field of building construction, in particular to a road surface rainwater collecting and adjusting system, which comprises a rainwater collecting system, a rainwater storage system and a water level adjusting system. The rainwater collecting system comprises rainwater collecting openings arranged on both sides of a drainage belt. The rainwater storage system comprises a gravel base layer and a well side gravel layer arranged above the gravel base layer, waterproof geotextiles are arranged between the gravel base layer and a roadbed, and water permeable geotextiles are arranged between a planting soil layer and the gravel base layer. The water level adjusting system comprises a first rainwater well, a second rainwater well and a gate. The road surface rainwater collecting and adjusting system is simple in structure, convenient in material taking, capable of changing a traditional seedling irrigation mode, capable of fully utilizing rainwater, capable of self-adjusting a water level, capable of improving water quality, capable of improving a survival rate of seedlings, incapable of causing a large amount of loss of base soil of a green belt, capable of improving city appearance, and capable of saving road greening maintenance cost.

Claims

1. A roadway rainwater collection and conditioning system, comprising: This includes rainwater harvesting systems, rainwater storage systems, and water level regulation systems; The road surface is provided with green belts and drainage belts at intervals along the road surface extension direction; The rainwater harvesting system includes rainwater collection inlets located on both sides of the drainage belt; The rainwater storage system includes a gravel base layer and a well-side gravel layer located on the gravel base layer, with the well-side gravel layer located below the rainwater collection inlet. The gravel base layer is located on the roadbed, and a planting soil layer is provided on the gravel base layer located within the green belt. A waterproof geotextile is provided between the gravel base layer and the roadbed, and a permeable geotextile is provided between the planting soil layer and the gravel base layer. The drainage strip is provided with open side stones with drainage outlets on both sides. A roadside stone is provided between the drainage strip and the green belt, and the bottom of the roadside stone is provided with manufactured sand. A debris net is provided at the drainage outlet, and the top of the drainage outlet is higher than the road surface, while the bottom of the drainage outlet is lower than the road surface and higher than the crushed stone layer on the side of the well. The water level regulation system includes a first rainwater well, a second rainwater well, and a gate. The first rainwater well includes a main well and a secondary well connected to the main well. The main well is located within the drainage belt and connected to the municipal pipe network. The secondary well is located within the green belt, and a rainwater grate is installed on the top of the main well. The secondary well is located on the gravel base layer and connected to the gravel base layer. The top of the secondary well is lower than the top of the main well, and the main well is located adjacent to the gravel layer on the side of the well. The main well is located between the secondary well and the gravel layer on the side of the well. The secondary well of the first rainwater well and the second rainwater well are respectively located within the green belts on both sides of the drainage belt. The second rainwater well penetrates the planting soil layer and the gravel base layer and extends into the roadbed. The gate is installed inside the second rainwater well. A lifting rod is installed on the upper part of the gate, and a lifting hole is provided on the gate. Within the drainage strip, backfill soil is provided around the main well and the crushed stone layer on the side of the well. Waterproof concrete is provided on top of the backfill soil, and the upper surface of the waterproof concrete is flush with the upper surface of the crushed stone layer on the side of the well. The water level regulation system also includes a water pump, which is installed at the second rainwater well.

2. The roadway rainwater collection and regulation system of claim 1, wherein, The gate is a concrete component, and one end of the lifting rod is anchored into the concrete component.

3. The roadway rainwater collection and regulation system of claim 1, wherein, The wellhead of the main well is 4-6 cm higher than the top surface of the gravel layer on the side of the well.

4. The road surface rainwater harvesting and regulation system as described in claim 1, characterized in that, The diameter of the auxiliary well is smaller than the diameter of the main well.

5. The road surface rainwater harvesting and regulation system as described in claim 1, characterized in that, The waterproof geotextile is a composite geotextile.

6. The road surface rainwater harvesting and regulation system as described in claim 1, characterized in that, The permeable geotextile is a short-fiber geotextile.

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