Grass planting ditch based on sponge cities

Abstract

The invention relates to the technical field of urban greening construction, and discloses a grass planting ditch based on sponge cities. The grass planting ditch comprises a groove, and a permeable layer is laid at the bottom of the groove. A sand layer is laid at the top of the permeable layer; a planting soil layer is laid at the top of the sand layer; a covering layer is laid at the top of theplanting soil layer; and a water storage layer is laid at the top of the covering layer. Blocking boxes located on the ground are fixedly mounted on the two sides of the groove, and each blocking boxis internally provided with a cavity. The grass planting ditch based on the sponge cities fixedly communicates with a connecting pipe through an overflow connector, and therefore ponding in the groove can flows into an overflow pipe through drainage holes, so that centralized treatment and ecological purification of urban sewage is facilitated; a locking plate drives a pulling rod to rise, and therefore the pulling rod drives fixing round plates and slide blocks to move up and down along slide grooves, so that a filter screen is convenient to take out, and the problem that efficacy of the grass planting ditch is lowered due to the overflow pipe being blocked by mass impurities during long term drainage is avoided.

Description

technical field [0001] The invention relates to the technical field of urban greening construction, in particular to a grass planting ditch based on a sponge city. Background technique [0002] Sponge city is a new generation of urban rain and flood management concept, which means that the city has good flexibility in adapting to environmental changes and responding to natural disasters brought by rain, showing excellent water seepage, compression resistance, wear resistance, anti-skid and environmental protection. Colorful, comfortable and easy to maintain, and sound-absorbing and noise-reducing features, it creates a breathable urban landscape pavement and effectively alleviates the urban heat island effect. [0003] Grass-planting ditch technology is a link in the construction of a sponge city. Grass-planting ditch refers to a landscape surface ditch drainage system planted with vegetation. Surface runoff passes through the grass-planting ditch at a relatively low flow ra...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a grass-planting ditch based on a sponge city, which has the advantages of preventing waste from clogging pipes, convenient drainage, and easy manual cleaning. , often due to the inflow of surface waste, the drainage system is blocked, which reduces the effect of the sponge city. During the long-term drainage process, the accumulation of impurities leads to blockage of the pipeline and affects drainage. The problem of soil layer collapse

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