A construction method of sponge city ecological infiltration ground

Abstract

The invention discloses a method for constructing ecological infiltration pavement in a sponge city. The ecological infiltration pavement in the sponge city comprises a subbase layer, a base layer, an infiltration layer and a permeable pavement. The construction method comprises steps as follows: 1) an infiltration material is prepared; 2) the subbase layer and the base layer are paved; 3) the infiltration layer is paved by paving the infiltration material under the pavement; 4) curbs are mounted and the permeable pavement is paved. The method has the advantages as follows: the construction method is ecological and environment-friendly and has better repeatability and reproductivity, and the porosity and the rainwater infiltration rate of the pavement can be increased; the water storage performance and the pollutant purification capability of the pavement and surrounding soil can be remarkably improved, pollutants in water and road safety accidents are reduced, the local climate is moderately adjusted, the problems such as rain diseases, the heat island effect, soil moisture deficiency, city noise and the like of the city are remarkably solved, and a good reference function is provided for construction of urban ecological roads while the problems about urban ecology, environment and safety are solved.

Description

technical field [0001] The invention belongs to the field of urban construction and environmental protection, and in particular relates to a method for constructing a sponge city ecological infiltration ground. Background technique [0002] With the rapid development of urban construction, the construction of a large number of buildings and roads has rapidly increased the urban hardened ground area. At present, the pavement design of most urban roads and public squares in my country adopts the "coordinated development of nature and a virtuous cycle of ecology" An impermeable densely graded concrete and stone slab paving structure that contradicts the concept. The large-scale use of this kind of pavement will have a negative impact on the urban ecological environment, destroy the normal circulation of water resources, completely prevent rain (snow) water from directly penetrating into the ground, and block the impact of rain (snow) water on urban groundwater. The supplement o...

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Problems solved by technology

The large-scale use of this kind of pavement will have a negative impact on the urban ecological environment, destroy the normal circulation of water resources, completely prevent rain (snow) water from directly penetrating into the ground, and block the impact of rain (snow) water on urban groundwater. The supplement of resources; exacerbated the negative climate effect of the city and deteriorated the urban ecology. This kind of impermeable pavement will work together with the surrounding urban buildings, which will increase the city's "heat island effect" and urban noise; increase safety hazards. The "rainwater disease" in the city is becoming more and more serious. The hardened ground makes the low-lying areas unable to drain water in time on rainy days, resulting in large areas of water accumulation and "water drifting phenomenon", which makes driving on rainy days "slippery". , "splash", "night glare" and other phenomena, which bring inconvenience and safety hazards to pedestrians and vehicles

When the slope is suitable, due to the rapid drainage mode of the hardened ground, the phenomenon of water shortage in the city is aggravated, which is not conducive to adjusting the local climate

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