A kind of tree box filter and using method thereof

Abstract

The invention relates to a tree box filter and a use method thereof, comprising a concrete tree box, wherein a permeable concrete slab is arranged inside the concrete tree box, and the permeable concrete slab divides the inner space of the concrete tree box into a rainwater runoff storage cavity and a rainwater storage cavity; The top of the rainwater runoff storage chamber is provided with a water inlet and an air vent; the rainwater storage chamber stores mixed soil, which is composed of coarse sand, fine sand, carbon soil, and compound organic soil. The compound organic soil includes clay, straw slag and ceramsite; street trees are planted in the mixed soil, and the street trees protrude from the uppermost planting soil layer of the mixed soil; both the rainwater runoff storage chamber and the bottom of the rainwater storage chamber are paved with a gravel layer, and the gravel layer at the bottom of the rainwater storage chamber There are drain pipes and overflow pipes inside. Through the present invention, the present invention aims to store and filter the runoff of large areas of impermeable surfaces such as roads and squares, so that the road squares can reduce water accumulation, facilitate pedestrians, and make effective use of rainwater.

Description

technical field [0001] The invention relates to a tree box filter and a method of using the same, in particular to provide a tree box filter used for road and square construction measures of sponge city, comprising a set of large-area water-tight filters for collecting and purifying roads and squares The Low Impact Development (LID) device for the generated storm runoff belongs to the field of municipal engineering. Background technique [0002] With the acceleration of urbanization in my country, the area of ​​impervious ground has increased rapidly, including a large number of impervious pavements. The impervious surface destroys the original natural infiltration system of the city, resulting in a substantial increase in the urban rainwater runoff; in order to prevent waterlogging, it can only be directly discharged through the underground water network pipeline, resulting in a large amount of rainwater resources being wasted. At the same time, as the rainwater washes the...

AI Technical Summary

Problems solved by technology

The impermeable ground has destroyed the original natural infiltration system of the city, resulting in a substantial increase in urban rainwater runoff; in order to prevent waterlogging, it can only be directly removed through the underground water network pipeline, resulting in a large amount of rainwater resources being wasted

At the same time, as the rainwater washes away the impermeable ground of the city, surface runoff brings a large amount of pollutants into the receiving water body, threatening the safety of the water ecological environment

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