Sponge city drainage structure and sponge city water circulating method
A drainage structure and sponge city technology, applied in drainage structures, water/sewage treatment, general water supply conservation, etc., can solve the problem of low utilization rate of rainwater on urban roads, and achieve the goal of improving utilization rate, saving water resources, and high permeability Effect
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[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0037] refer to figure 1 , is a sponge city drainage structure disclosed by the present invention, comprising a sump 1, a road layer structure 2 and a green belt 3, and the road structure sequentially includes a permeable concrete layer 21, a mortar leveling layer 22, and a graded crushed stone layer from top to bottom 23 and the plain soil layer 24, the mortar leveling layer 22 is provided with a support grid 25, the thickness of the graded crushed stone layer 23 is 50 mm, and the graded crushed stone layer 23 uses graded crushed stone as aggregate, and the maximum crushed stone The particle size does not exceed 40mm. A diversion tube 26 is placed in the graded gravel layer 23, the diameter of the diversion tube 26 is not more than 30 mm, and the side wall of the diversion tube 26 is provided with a through hole (not shown), and the side wall of the diversi...
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