Method for constructing ecological infiltration pavement in sponge city
A technology of sponge city and construction method, which can be applied to buildings, pavement details, condensable pavement paved on site, etc., can solve problems such as disrupting the normal circulation of water resources, increasing urban noise due to urban heat island effect, and inconvenience for pedestrians and vehicles. To achieve the effect of improving water storage performance and pollutant purification capacity, increasing porosity and rainwater permeability, and improving urban ecological environment
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Embodiment 1
[0019] A method for constructing the ecological infiltration ground of a sponge city, such as figure 1 As shown, the sponge city ecological infiltration ground is composed of subbase, base, infiltration layer, and permeable pavement, and the construction method includes the following steps:
[0020] 1) Preparation of percolation material
[0021] The percolation material is made by combining natural materials, waste materials and artificial materials, among which the natural materials are natural sand, zeolite, quartz sand, wood, meadow soil or sandy soil, and the waste materials are coal ash, crab shell or solid waste The artificial material is fiber membrane, activated carbon or zero-valent iron. According to the percolation effect and economic efficiency, the ratio of natural materials, waste materials and artificial materials is 7:2:1;
[0022] 2) Lay the subbase and base
[0023] Excavate the subgrade according to the design requirements, clean up the earthwork, check t...
Embodiment 2
[0030] A method for constructing the ecological percolation ground of a sponge city, the ecological percolation ground of the sponge city is composed of a subbase, a base, a percolation layer, and a permeable pavement, and the construction method embodiment 1 is basically the same, the difference is that:
[0031] In step 1), the proportion of natural materials in the percolation material of the percolation layer is appropriately increased, and the material ratio of natural materials, waste materials and artificial materials is 7:1:0.5.
[0032] In step 2), the laying thickness and compaction coefficient of the subbase and the base can be properly reduced according to the actual situation. According to the requirements of the design, excavate the roadbed, clear the earthwork, lay a 15cm thick lime fly ash stabilized soil subbase layer above the excavated roadbed, and then lay a 10cm base layer after paving and compacting, using cement fly ash to stabilize, The paving is compac...
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