Artificial sponge soil for urban green space

A green field and artificial technology, applied in application, planting substrate, gardening, etc., can solve the problems of poor water storage performance, poor soil permeability, high cost, etc., achieve strong permeability, increase microbial activity, and reduce evaporation.

Active Publication Date: 2018-12-18
青岛冠中生态股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides an artificial sponge soil for urban green spaces, which has the advantages of strong water permeability, high water storage capacity, and good erosion resistance, and can effectively solve the problems of poor soil permeability, poor water storage performance, and the like in the prior art. The problem of high cost and road load bearing

Method used

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  • Artificial sponge soil for urban green space
  • Artificial sponge soil for urban green space

Examples

Experimental program
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Effect test

Embodiment 1

[0028] An artificial sponge soil for urban green spaces, comprising a buffer permeable layer on the surface and an aquifer located at the bottom, the thickness of the buffer permeable layer is 10cm, and the water permeability coefficient of the permeable layer is 1.9×10 -5 m / s, cohesion is 59KPa; the thickness of the aquifer is 30cm, and the maximum water holding capacity of the aquifer is 112.6%.

[0029] The buffer permeable layer includes the following components by volume: 40% of sandy soil, 24% of industrial and mining waste, 18% of decomposed agricultural and forestry waste matrix, 16% of perlite, 1% of aggregate agent, and 1% of stabilizer; The aquifer consists of the following composition by volume ratio: 30% clay soil, 25% decomposed matrix of agricultural and forestry waste, 0.5% aggregate agent, 7% bentonite, 12% vermiculite, 20% plant fiber; 0.5% microbial agent, fertilizer 5%.

[0030] The industrial and mining waste includes but is not limited to one or more of ...

Embodiment 2

[0038] An artificial sponge soil for urban green spaces, comprising a buffer permeable layer on the surface and an aquifer located at the bottom, the thickness of the buffer permeable layer is 3 cm, and the thickness of the aquifer is 17 cm. The buffer permeable layer includes the following components by volume: 45% of sandy soil, 20% of industrial and mining waste, 15% of decomposed agricultural and forestry waste matrix, 19% of perlite, 0.5% of aggregate agent, and 0.5% of stabilizer; The aquifer consists of the following composition by volume ratio: 40% clay soil, 20% decomposed substrate of agricultural and forestry waste, 0.1% aggregate agent, 10% bentonite, 10% vermiculite, 15% plant fiber; 0.05% microbial agent, fertilizer 4.85%.

[0039] The water permeability coefficient of the permeable layer is 9.4×10 -6 m / s, the cohesion is 46KPa; the maximum water holding capacity of the aquifer is 117.5%.

[0040] The industrial and mining waste includes but is not limited to o...

Embodiment 3

[0048] An artificial sponge soil for urban green spaces, comprising a buffer permeable layer on the surface and an aquifer located at the bottom, the thickness of the buffer permeable layer is 5 cm, and the thickness of the aquifer is 24 cm. The buffer permeable layer includes the following components by volume: 35% of sandy soil, 20% of industrial and mining waste, 25% of decomposed matrix of agricultural and forestry waste, 18% of perlite, 1% of aggregate agent, and 1% of stabilizer; The aquifer consists of the following composition by volume ratio: 30% clay soil, 20% decomposed substrate of agricultural and forestry waste, 1% aggregate agent, 5% bentonite, 15% vermiculite, 20% plant fiber; 1% microbial agent, fertilizer 8%.

[0049] The water permeability coefficient of the permeable layer is 2.3×10 -5 m / s, the cohesion is 60KPa; the maximum water holding capacity of the aquifer is 121.9%.

[0050] The industrial and mining waste includes but is not limited to one or more...

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Abstract

The invention provides an artificial sponge soil for urban green space, and relates to the technical field of artificial soil. The artificial sponge soil for urban green space includes a surface layerof buffering pervious bed and a ground layer of aquifer, wherein the buffering pervious bed comprises the following components in a volume ratio: 35%-45% of sandy soil, 20%-30% of industrial and mining waste, 15%-25% of agricultural and forestry waste decomposed substrate, 15%-25% of perlite, 0.5%-1% of granule agent, and 0.5%-1% of stabilizer; the aquifer includes the following components in a volume ratio: 30%-40% of clay soil, 20%-30% of agricultural and forestry waste decomposed substrate, 0.1%-1% of granule agent, 5%-15% of bentonite, 10%-15% of vermiculite, 15%-25% of plant fiber, 0.05%-1% of microbial agent, and 2%-8% of fertilizer; the thickness of the buffering pervious bed is 3 cm to 10 cm; and the thickness of the aquifer is 10 cm to 30 cm. The artificial sponge soil for urbangreen space has the characteristics of strong water permeability, high water storage capacity, good erosion resistance and the like, thus being able to improve the quality of rainwater infiltrated into the soil, reduce pollution to urban groundwater, achieve the purpose of rainwater infiltration, storage and purification, and greatly reduce the high cost of sponge city construction.

Description

technical field [0001] The invention provides an artificial sponge soil for urban green spaces, relates to the technical field of artificial soil, can be widely used in the construction of sponge cities, and can also be applied to the construction of individual facilities such as grass planting ditches, rainwater wetlands and green roofs. Background technique [0002] Urban green space soil is an important source of life to maintain plant growth, but large-scale road surface reconstruction and human disturbance destroy its original structure, resulting in heavy soil texture, small intergranular pores, poor water permeability and water storage, resulting in surface runoff increase, urban waterlogging, increased water pollution, and loss of water resources. Sunken green space and permeable pavement are the most widely used treatment methods in the construction of sponge cities. The water collection method is water infiltration into the underground soil layer. However, if the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/10A01G24/15A01G24/22A01G24/20A01G24/23A01G24/25
CPCA01G24/10A01G24/15A01G24/20A01G24/22A01G24/23A01G24/25
Inventor 李春林许剑平臧小龙祁传磊范小妮曹凤娟
Owner 青岛冠中生态股份有限公司
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