CN210439414U - Ponding structure is prevented to view that uses in sponge city construction - Google Patents

Ponding structure is prevented to view that uses in sponge city construction Download PDF

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Publication number
CN210439414U
CN210439414U CN201921141561.8U CN201921141561U CN210439414U CN 210439414 U CN210439414 U CN 210439414U CN 201921141561 U CN201921141561 U CN 201921141561U CN 210439414 U CN210439414 U CN 210439414U
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China
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layer
gravel
pebble
overflow pipe
gravel layer
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CN201921141561.8U
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Chinese (zh)
Inventor
吴程
刘元元
谢强富
侯永平
肖涵
陈文�
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China Power Construction Group municipal planning and Design Institute Co., Ltd
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PowerChina Kunming Engineering Corp Ltd
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Abstract

The utility model relates to a landscape anti-ponding structure used in sponge city construction, which comprises a concave green land, an overflow pipe is vertically arranged at the lowest part of the concave green land, and an overflow cap is arranged at the upper pipe orifice of the overflow pipe; a plurality of blind ditch pipes are transversely and fixedly arranged at the lower part of the overflow pipe; a pebble layer, a gravel layer A, a sand layer and a gravel layer B are sequentially arranged in the space below the ground outside the overflow pipe from top to bottom; the pebble layer, the gravel layer A, the sand layer and the gravel layer B do not cross the boundary in the transverse direction or the longitudinal direction; soil spaces are arranged on the peripheries of the pebble layer, the gravel layer A, the sand layer and the gravel layer B. The utility model discloses a prevent ponding effect very showing, and compromise and satisfy the utility model discloses the moisture of the plant landscape of near maintenance is required, is particularly suitable for using such as high-grade district, ecological residence district or office area, amusement park.

Description

Ponding structure is prevented to view that uses in sponge city construction
Technical Field
The utility model belongs to the technical field of a ponding structure is prevented to the view, especially, belong to the ponding technical field is prevented to view in sponge city construction.
Background
Definition of ecological sponge city: the urban water-retaining agent can be used for the urban water-retaining agent, and has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters and the like a sponge, and can absorb, store, seep and purify water in the rainy period, and release and utilize the stored water as required, so that the natural ecological balance of the urban water-retaining agent is gradually improved and restored. In the process of sponge city construction, human and natural ecology are the priority principles, so the sponge city is defined as an ecological sponge city.
In the process of ecological sponge city construction, some LID measures are provided, such as: permeable pavement, permeable concrete/asphalt, green roof, sunken green land, bioretention pond, wet pond, penetration pond, rainwater garden, rainwater wetland, reservoir, rainwater tank, regulation pond, grass planting ditch, penetration pipe/canal, vegetation buffer zone, initial rainwater abandoning, sinking square, gabion, ecological revetment, artificial soil infiltration, seepage well, ecological rainwater inlet and drought stream; and so on.
Grass furrows are often visible in these LID measures, the so-called grass furrows being shallow ground trenches where vegetation is planted. On the basis of the grass planting ditch, a water purification and seepage structure of a rainwater garden gradually appears in the construction of high-grade districts or new cities. The rainwater garden is a naturally formed or artificially excavated shallow-recessed green land, and is used for gathering and absorbing rainwater from a roof or the ground, purifying the rainwater through the combined action of plants and sand, gradually infiltrating the rainwater into soil, conserving underground water, or supplementing urban water such as landscape water and toilet water. Is an ecologically sustainable rain flood control and rain water utilization facility. The bottom and the surface are generally a gravel layer, a sand layer, a planting soil layer, a covering layer and a water storage layer. Meanwhile, an overflow pipe is arranged near the surface of the ground, and accumulated water exceeding the designed water storage amount is discharged through the overflow pipe while rainwater is collected. After the rain garden is built, when the conditions are proper, the runoff of the ground rain can be controlled to be 75-80%.
In order to build a novel sponge city, the backward technology needs to be improved or eliminated, so that the technical problem to be solved is that the water conveying and draining sponge structure with larger water accumulation prevention capacity is provided.
Disclosure of Invention
The utility model discloses just in order to solve above-mentioned problem defect, provide a ponding structure is prevented to view that uses in sponge city construction.
The utility model adopts the following technical scheme to realize.
A landscape anti-ponding structure used in sponge city construction comprises a concave green land, an overflow pipe is vertically arranged at the lowest part of the concave green land, and an overflow cap is arranged at the upper pipe orifice of the overflow pipe (a filter screen can be arranged at the overflow orifice at the lower part of the overflow cap to prevent sundries from falling in); a plurality of blind ditch pipes (the blind ditch pipes of the utility model are connected with the municipal canal) are transversely and fixedly arranged at the lower part of the overflow pipe; a pebble layer, a gravel layer A, a sand layer and a gravel layer B are sequentially arranged in the space below the ground outside the overflow pipe from top to bottom; the pebble layer, the gravel layer A, the sand layer and the gravel layer B do not cross the boundary in the transverse direction or the longitudinal direction; soil spaces are arranged on the peripheries of the pebble layer, the gravel layer A, the sand layer and the gravel layer B.
Furthermore, the upper pipe orifice of the overflow pipe is set to be 10-15cm higher than the lowest part of the concave green land.
Furthermore, the upper pipe orifice of the overflow pipe is set to be 15-20cm lower than the hardened ground beside the concave green land.
Furthermore, the number of the blind drain pipes transversely and fixedly arranged at the lower part of the overflow pipe is 1-3; when 2-3 blind canals are adopted, an included angle of 90 degrees is formed between the adjacent blind canals.
Furthermore, one end of the blind ditch pipe of the utility model is inserted in the overflow pipe and is fixedly and hermetically connected with the overflow pipe; the pipe orifice at the other end is arranged in a closed way; uniformly or immediately arranging open pores on the wall of the blind ditch pipe, wherein the area occupied by the open pores is not less than 5 percent of the surface area of the pipe, and the aperture of the open pores is 0.5-1.0 cm; the aperture of the open hole of the blind ditch pipe is smaller than the minimum particle size of gravel; and the outer walls of all the blind drain pipes are provided with geotextile packages.
Further, the blind ditch pipe of the utility model is arranged in the gravel layer B.
Furthermore, the particle diameter of the pebbles in the pebble layer is 5-20 cm; the gravel particle size of the gravel layer A and the gravel layer B is 1-3 cm.
Furthermore, the pebble layer, the gravel layer A, the sand layer and the gravel layer B of the utility model take the outer edge of the overflow pipe as a starting point, and the width extending to the periphery is 40-60 cm.
Furthermore, the pebble layer, the gravel layer A, the sand layer and the gravel layer B of the utility model take the lowest part of the concave green land as a starting point, and the depth which is vertically arranged downwards in sequence is set to be 20-30 cm; namely the pebble layer, the gravel layer A, the sand layer and the gravel layer B are respectively set to be 15-30 cm.
Furthermore, the pebble layer of the utility model is a double-layer structure of a small-diameter pebble layer and a large-diameter pebble layer, and the small-diameter pebble layer is arranged at the upper part of the large-diameter pebble layer; the particle size of the pebbles of the small-diameter pebble layer is 5-8 cm; the pebble grain diameter of the thick pebble layer is 8-15 cm.
The particle size in the present invention refers to the maximum dimension length of pebbles or gravels.
The utility model discloses a gravel layer A, gravel layer B use for distinguishing upper and lower two-layer gravel layer, do not show that this two-layer gravel layer particle diameter is tangible like the obvious difference of thin footpath cobble layer, thick footpath cobble layer.
The utility model has the advantages that the structure is ingenious, the material can be obtained conveniently, the maintenance cost after the building is extremely low although the early investment is time-consuming and labor-consuming, and a large amount of manpower and material resources can be saved, thereby greatly reducing the comprehensive cost; the utility model discloses a prevent ponding effect very showing, and compromise and satisfy the utility model discloses the moisture of the plant landscape of near maintenance is required, and is particularly suitable for building and using in high-grade district.
The invention will be further explained with reference to the drawings and the detailed description.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The reference numbers in the figure are an overflow pipe 1, an overflow cap 2, a blind ditch pipe 3, a pebble layer 4, a gravel layer A5, a sand layer 6, a gravel layer B7, a geotextile package 8, an opening 9 and a municipal canal 10.
Detailed Description
As shown in fig. 1. A landscape anti-ponding structure used in sponge city construction comprises a lower concave green land, an overflow pipe 1 is vertically arranged at the lowest position of the lower concave green land, and an overflow cap 2 is arranged at the upper pipe orifice of the overflow pipe 1 (a filter screen can be arranged at the overflow orifice at the lower part of the overflow cap 2 to prevent sundries from falling in); a plurality of blind ditch pipes 3 are transversely and fixedly arranged at the lower part of the overflow pipe 1 (the blind ditch pipes 3 of the utility model are connected with a municipal pipe duct 10, and only part of the municipal pipe duct 10 is shown in the figure); a pebble layer 4, a gravel layer A5, a sand layer 6 and a gravel layer B7 are sequentially arranged in the space below the ground outside the overflow pipe 1 from top to bottom; the pebble layer 4, the gravel layer A5, the sand layer 6 and the gravel layer B7 do not cross the boundary in the transverse direction or the longitudinal direction; soil spaces are arranged on the peripheries of the pebble layer 4, the gravel layer A5, the sand layer 6 and the gravel layer B7.
Furthermore, the upper pipe orifice of the overflow pipe 1 of the utility model is set to be 10-15cm higher than the lowest part of the concave green land.
Furthermore, the upper pipe orifice of the overflow pipe 1 of the utility model is set to be 15-20cm lower than the hardened ground beside the concave green land.
Furthermore, the number of the blind ditch pipes 3 transversely and fixedly arranged at the lower part of the overflow pipe 1 is 1-4; when 2-4 blind canals are arranged, the adjacent blind canals 3 form an included angle of 90 degrees.
Furthermore, one end of the blind ditch pipe 3 of the utility model is inserted in the overflow pipe 1 and is fixedly and hermetically connected with the overflow pipe 1; the pipe orifice at the other end is arranged in a closed way; the pipe wall of the blind ditch pipe 3 is uniformly or immediately provided with openings 9, the area occupied by the openings is not less than 5 percent of the surface area of the pipe, and the aperture of the openings is 0.5-1.0 cm; the aperture of the open hole of the blind ditch pipe is smaller than the minimum particle size of gravel; and the outer walls of all blind ditch pipes 3 are provided with geotextile packages 8.
Furthermore, the blind ditch pipe 3 of the utility model is arranged inside the gravel layer B7.
Furthermore, the particle diameter of the pebbles in the pebble layer 4 of the utility model is 5-20 cm; the gravel particle size of the gravel layers A5 and B7 is 1 to 3 cm.
Furthermore, the pebble layer 4, the gravel layer A5, the sand layer 6 and the gravel layer B7 of the utility model take the outer edge of the overflow pipe 1 as a starting point, and the width extending to the periphery is 40-60 cm.
Furthermore, the pebble layer 4, the gravel layer A5, the sand layer 6 and the gravel layer B7 of the utility model take the lowest part of the concave green land as a starting point, and the depth which is vertically and downwards arranged in sequence is set to be 20-30 cm; namely the pebble layer 4, the gravel layer A5, the sand layer 6 and the gravel layer B7 are respectively set to be 20-30 cm.
Furthermore, the pebble layer 4 of the utility model is arranged into a double-layer structure of a pebble layer with a small diameter and a pebble layer with a large diameter, and the pebble layer with the small diameter is arranged at the upper part of the pebble layer with the large diameter; the particle size of the pebbles of the small-diameter pebble layer is 5-8 cm; the pebble grain diameter of the thick pebble layer is 10-20 cm.
The particle size in the present invention refers to the maximum dimension length of pebbles or gravels.
The gravel layers A5 and B7 of the present invention are used for distinguishing the upper and lower two-layered gravel layers, and do not represent the obvious difference in particle size of the two-layered gravel layers, such as the fine-diameter gravel layer and the coarse-diameter gravel layer.
The above description is only for the specific embodiment of the present invention, and the common general knowledge of the known specific structure and characteristics of the scheme is not described too much here. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. A landscape water accumulation preventing structure used in sponge city construction is characterized in that the landscape water accumulation preventing structure comprises a lower concave green land, an overflow pipe is vertically arranged at the lowest position of the lower concave green land, and an overflow cap is arranged at the pipe orifice at the upper part of the overflow pipe; a plurality of blind ditch pipes are transversely and fixedly arranged at the lower part of the overflow pipe; a pebble layer, a gravel layer A, a sand layer and a gravel layer B are sequentially arranged in the space below the ground outside the overflow pipe from top to bottom; the pebble layer, the gravel layer A, the sand layer and the gravel layer B do not cross the boundary in the transverse direction or the longitudinal direction; soil spaces are arranged on the peripheries of the pebble layer, the gravel layer A, the sand layer and the gravel layer B.
2. The landscape water-accumulation preventing structure for use in sponge city construction as claimed in claim 1, wherein the upper nozzle of the overflow pipe is set to be 10-15cm higher than the lowest place of the lower concave green.
3. The landscape architecture of claim 1, wherein the upper nozzle of the overflow pipe is set 15-20cm below the hardened ground beside the lower greens.
4. The landscape ponding-preventing structure used in sponge city construction according to claim 1, wherein the number of blind drain pipes transversely and fixedly arranged at the lower part of the overflow pipe is 1-3; when 2-3 blind canals are adopted, an included angle of 90 degrees is formed between the adjacent blind canals.
5. The landscape ponding-preventing structure used in sponge city construction according to claim 1, wherein one end of the blind ditch pipe is inserted into the overflow pipe and is fixedly and hermetically connected with the overflow pipe; the pipe orifice at the other end is arranged in a closed way; uniformly or immediately arranging open pores on the wall of the blind ditch pipe, wherein the area occupied by the open pores is not less than 5 percent of the surface area of the pipe, and the aperture of the open pores is 0.5-1.0 cm; the aperture of the open hole of the blind ditch pipe is smaller than the minimum particle size of gravel; and the outer walls of all the blind drain pipes are provided with geotextile packages.
6. The landscape architecture of claim 1, wherein the blind drain pipes are disposed inside the gravel layer B.
7. The landscape water accumulation prevention structure for use in sponge city construction as claimed in claim 1, wherein the pebble layer has pebble grain size of 5-20 cm; the gravel particle size of the gravel layer A and the gravel layer B is 1-3 cm.
8. The landscape water-accumulation preventing structure for use in sponge city construction as claimed in claim 1, wherein the pebble layer, the gravel layer a, the sand layer and the gravel layer B are extended from the outer edge of the overflow pipe to the periphery by a width of 40-60 cm.
9. The landscape water-accumulation preventing structure used in sponge city construction according to claim 1, wherein the pebble layer, the gravel layer A, the sand layer and the gravel layer B are vertically arranged downwards in sequence with a depth of 20-30cm from the lowest part of the concave greenbelt as a starting point; namely the pebble layer, the gravel layer A, the sand layer and the gravel layer B are respectively set to be 15-30 cm.
10. The landscape ponding-preventing structure used in the sponge city construction according to any one of claims 1 to 9, wherein the pebble layer is provided with a double-layer structure of a fine-diameter pebble layer and a coarse-diameter pebble layer, and the fine-diameter pebble layer is provided on the upper part of the coarse-diameter pebble layer; the particle size of the pebbles of the small-diameter pebble layer is 5-8 cm; the pebble grain diameter of the thick pebble layer is 8-15 cm.
CN201921141561.8U 2019-07-19 2019-07-19 Ponding structure is prevented to view that uses in sponge city construction Active CN210439414U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921141561.8U CN210439414U (en) 2019-07-19 2019-07-19 Ponding structure is prevented to view that uses in sponge city construction

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Application Number Priority Date Filing Date Title
CN201921141561.8U CN210439414U (en) 2019-07-19 2019-07-19 Ponding structure is prevented to view that uses in sponge city construction

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112429906A (en) * 2020-09-28 2021-03-02 江苏龙腾工程设计股份有限公司 Special multistage purification type grass planting ditch for green sponge and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112429906A (en) * 2020-09-28 2021-03-02 江苏龙腾工程设计股份有限公司 Special multistage purification type grass planting ditch for green sponge and construction method thereof
CN112429906B (en) * 2020-09-28 2022-07-05 江苏龙腾工程设计股份有限公司 Special multistage purification type grass planting ditch for green sponge and construction method thereof

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20200615

Address after: Room 105-29793, No. 6, Baohua Road, Hengqin New District, Zhuhai City, Guangdong Province

Patentee after: China Power Construction Group municipal planning and Design Institute Co., Ltd

Address before: 650000 Office Building No. 115 Renmin East Road, Kunming City, Yunnan Province

Patentee before: POWERCHINA KUNMING ENGINEERING Corp.,Ltd.

TR01 Transfer of patent right