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Biological purification retention zone for multifunctional sponge city municipal road and construction technology of biological purification retention zone

A multi-functional sponge and municipal road technology, which is applied in the field of biological purification retention belt and its construction technology for multi-functional sponge city municipal roads, can solve the problems of polluting the road surface and increasing the pressure of the drainage system, etc.

Inactive Publication Date: 2019-09-10
筑邦建设集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current municipal road design, the height of all the dividers is higher than the road surface, which cannot play the above role at all, and the rainwater flowing from the dividers will pollute the road surface and increase the pressure on the drainage system

Method used

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  • Biological purification retention zone for multifunctional sponge city municipal road and construction technology of biological purification retention zone
  • Biological purification retention zone for multifunctional sponge city municipal road and construction technology of biological purification retention zone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A kind of multi-functional sponge city municipal road biological purification retention belt, such as figure 1 As shown, it includes: a waterproof geotextile layer 100 laid on the inner wall of the municipal road divider; a water storage and drainage layer 200, an aquifer 300, a water-permeable layer 400, a filter layer 500, and a planting layer 600 laid sequentially from bottom to top; the planting layer The upper surface of 600 is in a concave arc shape; the permeable pipe 700 pierced in the water storage and drainage layer 200 ; and the drainage system 800 is arranged in the middle of the planting layer 600 .

[0054] Specifically, the waterproof geotextile layer 100 is formed by covering the entire road divider with waterproof geotextiles. The waterproof geotextiles are stacked on each other during laying, and the seams overlap at least 15cm. The adjacent waterproof geotextiles are stitched or bonded. The form is fixed to ensure the waterproofness of the seams.

[...

Embodiment 2

[0067] A construction process of a biological purification retention zone, the process comprises the following steps:

[0068] Step 1: Determine the width of the biological purification retention zone according to the width of the middle zone and side zone in the design of the municipal road, and excavate the foundation pit. The excavation of the foundation pit adopts the method of artificial step excavation.

[0069] Step 2: Lay waterproof geotextiles along the inner wall of the foundation pit and completely cover the foundation pit to form a waterproof geotextile layer 100. The waterproof geotextiles are stacked on each other during laying, and the seams overlap at least 15cm. Adjacent waterproof geotextiles The seams are fixed by stitching or bonding to ensure the waterproofness of the seams.

[0070] Step 3: lay a permeable pipe 700 at the middle of the bottom of the foundation pit along the extension direction of the municipal road. The permeable pipe 700 adopts a soft pe...

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Abstract

The invention relates to a biological purification retention zone for a multifunctional sponge city municipal road and a construction technology of the biological purification retention zone. The biological purification retention zone comprises a waterproof geotechnical cloth layer, a water storage and drainage layer, a water storage layer, a water-permeable layer, a filter layer, a planting layer, a water-permeable pipe and a water drainage system, wherein the water storage and drainage layer, the water storage layer, the water-permeable layer, the filter layer and the planting layer are sequentially laid form bottom to top, the upper surface of the planting layer is in a downward-sunken arc shape, the water drainage system is arranged in the middle of the planting layer and comprises anoverflow pipe, a siphon and a main drainage pipe, and the overflow pipe extends out of the surface of the planting layer. According to the biological purification retention zone, urban inland inundation is reduced, when the rainwater amount is large and rainwater is accumulated in the middle of a planting soil layer by a certain amount, excessive rainwater is sucked into the overflow pipe throughthe siphon and drained through the main drainage pipe, thus the rainwater is effectively drained, the various functions of water penetration, water storage, water purification, water retention, waterdrainage and the like are achieved, and the municipal road is incorporated into a part of a sponge city.

Description

technical field [0001] The invention relates to the technical field of municipal road construction, in particular to a multifunctional sponge city municipal road biological purification retention belt and its construction process. Background technique [0002] Sponge city is a new concept of urban construction proposed by the state. The Ministry of Housing and Urban-Rural Development requires that by 2020, more than 20% of the urban built-up area will meet the target requirements, and by 2030, more than 80% of the area will meet the target requirements. It can be seen from this that the country urgently needs to improve the living environment of residents and the urban water environment. The sponge city requires the city to have the functions of infiltration, stagnation, storage, purification, utilization and drainage when it rains. The proportion of road pavement in the whole city is about 30%, and there are problems of runoff pollution and water resource waste caused by r...

Claims

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Application Information

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IPC IPC(8): E03F1/00C02F9/14C02F101/20C02F101/30
CPCC02F1/001C02F1/283C02F1/66C02F3/32C02F9/00C02F2101/20C02F2101/30C02F2103/001E03F1/002
Inventor 田仲义
Owner 筑邦建设集团股份有限公司
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