Permeable outdoor stair structure with sump tank

Abstract

The invention relates to a permeable outdoor stair structure with a sump tank, and belongs to the technical field of construction. The permeable outdoor stair structure comprises the sump tank and a tamping plain soil base layer, an inverse filter soil layer, a graded gravel cushion layer, water-permeable geotextile fabric, a plain permeable concrete base layer, a cement mortar bonding layer and water-permeable granite step plates. The step plates are made of granite water-permeable bricks, and the preparation method of the step plates comprises the steps of immersion, gravel stone preparation, semi-dry material preparation, stirring, pressing forming and grinding and smoothing. The sump tank is composed of water-permeable concrete tank side walls, the water-permeable geotextile fabric, aconcrete trough bottom and a water comb. The permeable outdoor stair structure with the sump tank can guide the runoff of rainwater through the sump tank, can effectively collect the rainwater, reduces the pressure of underground drainage pipe networks, purifies the soil, overcome the disadvantages of imperviousness of original outdoor stairs, and has good noise reduction and anti-skid functions;and at the same time, the water damage resistance, stability, wear resistance and fatigue resistance of the outdoor stairs are improved.

Description

Technical field [0001] The invention belongs to the field of construction technology, and particularly relates to a permeable outdoor staircase structure with a water collection tank. Background technique [0002] With the development of my country's economy and the acceleration of urban construction, the surface of modern cities is gradually covered by buildings and concrete roads. Convenient transportation facilities and smooth paved roads have brought great convenience to people's travel, but these impervious roads also have many negative effects on the ecological environment of the city. Because the concrete pavement lacks water permeability and air permeability, rainwater cannot penetrate into the ground, which makes it difficult for surface plants to grow normally due to severe water shortage; it is difficult for airtight pavements to exchange heat and moisture with the air, and lack the surface temperature of the city. , The ability to adjust the humidity produces the so-...

AI Technical Summary

Problems solved by technology

[0005] The outdoor steps are the traffic connection parts between the indoor and outdoor height difference at the entrance and exit of the building. The step boards of the steps are usually made of impermeable materials such as granite and marble, and the surfaces are all set horizontally. Especially after rainy and snowy days, the surface is prone to accumulation. Water will wet the trousers of pedestrians, which is prone to safety hazards for outdoor stairs with a large flow of people, which is not conducive to walking safety

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