Recessed green land construction supplementing rainwater infiltration under background of building landscape

Abstract

The invention provides a recessed green land construction supplementing rainwater infiltration under the background of building landscape. The construction comprises recessed green lands; a plurality of vertical drainage layers are laid side by side in a direction perpendicular to the horizontal plane in a soil layer in a position having slope of a recessed green land; a plurality of vertical drainage layers and the soil layer are connected to set up a horizontal diffusion layer; the vertical drainage layer guides the excess rainwater which is beyond the drainage capacity of the recessed green land soil layer vertically into the horizontal diffusion layer; the rainwater is then transferred to the surrounding soil layer by the horizontal diffusion layer for storage and further infiltration; rainwater infiltrates rapidly in gravel sand layers; the functions of increasing rainwater infiltration, promoting rainwater deep-seated rapid recharge of groundwater and restoring soil conservation water source are achieved. The problem of insufficient water storage capacity of recessed green land under the background of building landscapes is solved; many environmental and engineering problems such as insufficient groundwater supply and easy water accumulation can also be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of rainwater seepage, and in particular relates to a sunken green space structure for supplementing rainwater infiltration under the background of building a landscape. Background technique [0002] Sponge city refers to a city that, like a sponge, has good "elasticity" in adapting to environmental changes and responding to natural disasters. When it rains, it absorbs, stores, infiltrates and purifies water, and "releases" the stored water when needed. and take advantage of it. Let man-made cities transform into super sponges that can absorb rainwater, filter air, and filter pollutants, achieve benefits such as cooling, flood control, drought resistance, and carbon capture, fundamentally solve the problem of man-made cities blocking water and ecology, and move towards real ecology and low carbon city. [0003] The concave green space is an important measure in the construction of sponge city. The sunken g...

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Problems solved by technology

[0005] In view of the defects or problems existing in the prior art, the purpose of the present invention is to provide a sunken green space structure that supplements rainwater infiltration under the background of creating a landscape, solves the problem of insufficient water storage volume in the sunken green space, and can effectively increase rainwater infiltration, Restoring the function of soil to conserve water sources, to achieve the purpose of solving various environmental and engineering problems such as insufficient groundwater supply and easy water accumulation in the current urbanization construction

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