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A sponge urban biological retention facility and a construction method thereof

A bioretention and sponge city technology, applied in the sponge city bioretention facilities and its construction, can solve problems such as soil erosion, destruction of natural landscapes, high production costs, etc., and achieve water storage capacity and water purification capacity improvement, permeability (storage) Good water performance and low engineering cost

Pending Publication Date: 2019-01-11
XIAN HIGHWAY INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country's natural sand and gravel resources are facing depletion. For a long time, the mining of sand and gravel aggregates has greatly damaged green vegetation, exposed raw ore, destroyed natural landscapes, caused water and soil erosion, caused mineral resources to decrease day by day, and seriously damaged ecosystem
Therefore, the production cost of the existing sponge city bioretention facilities is too high, the water seepage and water storage capacity is poor, and the utilization of construction waste is not enough is a technical problem that needs to be solved urgently

Method used

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  • A sponge urban biological retention facility and a construction method thereof
  • A sponge urban biological retention facility and a construction method thereof
  • A sponge urban biological retention facility and a construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] refer to figure 1 According to the embodiment of the present invention, a kind of sponge city bioretention facility containing recycled aggregates from construction waste is proposed, and the specifications are set in turn from bottom to top on the surface of the plain soil base layer as the lower recycled aggregate layer, middle recycled aggregate layer, upper recycled aggregate layer, biological filter medium layer, and biological cover layer, the specific construction methods are as follows:

[0038] (1) Measurement and setting-out

[0039] According to the required width, release the width of the upper opening of the groove of the sponge city bioretention facility containing recycled aggregate of construction waste, and sprinkle the center line and side line with white ash.

[0040] (2) Trench excavation

[0041] The trench excavation adopts backhoe excavator grading excavation and manual excavation, and the on-site earthwork is loaded and pulled out of the site. ...

Embodiment 2

[0059] A biological retention facility for a sponge city and its construction method, in which specifications are arranged in sequence from bottom to top on the surface of a plain soil base, including a lower recycled aggregate layer, a middle recycled aggregate layer, an upper recycled aggregate layer, a biological filter medium layer, and a biological covering Layer, the specific construction method is as follows:

[0060] (1) Measurement and setting-out

[0061] According to the required width, release the width of the upper opening of the groove of the sponge city bioretention facility containing recycled aggregate of construction waste, and sprinkle the center line and side line with white ash.

[0062] (2) Trench excavation

[0063] The trench excavation adopts backhoe excavator grading excavation and manual excavation, and the on-site earthwork is loaded and pulled out of the site. When there are underground pipelines, use manual excavation. After the excavation is co...

Embodiment 3

[0081] A biological retention facility for a sponge city and its construction method, in which specifications are arranged in sequence from bottom to top on the surface of a plain soil base, including a lower recycled aggregate layer, a middle recycled aggregate layer, an upper recycled aggregate layer, a biological filter medium layer, and a biological covering Layer, the specific construction method is as follows:

[0082] (1) Measurement and setting-out

[0083] According to the required width, release the width of the upper opening of the groove of the sponge city bioretention facility containing recycled aggregate of construction waste, and sprinkle the center line and side line with white ash.

[0084] (2) Trench excavation

[0085] The trench excavation adopts backhoe excavator grading excavation and manual excavation, and the on-site earthwork is loaded and pulled out of the site. When there are underground pipelines, use manual excavation. After the excavation is co...

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Abstract

The invention discloses a sponge urban biological retention facility and a construction method thereof. The sponge urban biological retention facility is sequentially provided with a regenerated aggregate layer, a biological filter medium layer and a biological cover layer from bottom to top on the upper surface of a plain soil base layer. Wherein the recycled aggregate layer sequentially comprises a lower recycled aggregate layer, a middle recycled aggregate layer and an upper recycled aggregate layer from bottom to top. The water absorption capacity, water storage capacity and seepage capacity of the sponge urban biological retention facility are all good, and the transition between the upper recycled aggregate layer and the lower recycled aggregate layer can be realized by setting the middle recycled aggregate layer, which not only connects the upper recycled aggregate layer with the lower recycled aggregate layer reasonably in particle size, but also greatly improves the overall water seepage effect of the recycled aggregate layer; At that same time, the recycle aggregate of brick and concrete construction waste is adopted to replace the natural material such as limestone, sandand gravel, so that the seepage capacity and water storage capacity of the biological retention facilities are greatly improved, and the construction method is simple, the production cost is low, waste is chan into treasure, and low-carbon environmental protection is achieved.

Description

technical field [0001] The invention relates to the field of water treatment systems, in particular to a sponge city biological retention facility and a construction method thereof. Background technique [0002] In recent years, with the modernization of our country's cities and the acceleration of rural urbanization, the amount of construction waste is increasing day by day, and the harm of construction waste to human beings is becoming more and more serious. According to statistics, China has to demolish at least 3×10 7 ~4×10 7 m 2 Old buildings generate hundreds of millions of tons of construction waste, of which more than 40 million tons of construction waste generated during the construction process alone. The amount of construction waste in my country has accounted for 30-40% of the total amount of urban waste, and the phenomenon of "garbage siege" is becoming increasingly serious. Most of the large amount of construction waste is transported to the suburbs or vill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F1/00C02F3/00C02F3/34
CPCE03F1/00C02F3/00C02F3/34
Inventor 张名成邓朝显徐希娟梁行行姬国强李娜马越贾德生马笑
Owner XIAN HIGHWAY INST
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