CN210395266U - Sponge city river course flood discharge structure - Google Patents
Sponge city river course flood discharge structure Download PDFInfo
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- CN210395266U CN210395266U CN201920861648.6U CN201920861648U CN210395266U CN 210395266 U CN210395266 U CN 210395266U CN 201920861648 U CN201920861648 U CN 201920861648U CN 210395266 U CN210395266 U CN 210395266U
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- sponge city
- rainwater
- discharge structure
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Abstract
The utility model relates to a sponge city river course flood discharge structure, this river course both sides have the slope body of slope, are formed with the stair structure on this slope body, and this stair structure includes plane and facade that connects gradually, and this flood discharge structure includes: a plurality of detention ponds arranged on the plane, wherein plants are planted in the detention ponds; the retaining wall is attached to the vertical surface and provided with overflow holes communicated with the detention pools on two adjacent planes; and the revetment area is arranged at the part of the slope body close to the river channel and is used for reinforcing the slope body. The utility model discloses solved urban water effectively and polluted serious and the inefficiency problem of flood discharge, the rainwater makes the rainwater part absorbed simultaneously through the water of discharging after purifying through sponge city bank protection structure, reduces flood discharge pressure, can also reach water-purifying's purpose.
Description
Technical Field
The utility model relates to an urban construction field refers in particular to a sponge city river course flood discharge structure.
Background
At present, flood discharge passageway in the city is generally only a irrigation canals and ditches, both sides are the soil property hillside fields, do not fix and safeguard measure, if meet heavy rain or torrential rain, the great rivers in upper reaches can cause very big washing away to the hillside fields of channel both sides, the scene will form comparatively serious soil erosion and water loss in the past, the danger that has formed the mud-rock flow constantly, simultaneously, rainwater in the road of channel both sides also can flow to the channel naturally, there are solid pollutants such as more silt, rubbish and some soluble pollutants in these rainwater, cause the pollution to the water and whole ecosystem of flood discharge passageway.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a sponge city river course flood discharge structure, solved the serious and problem that the flood discharge is inefficient of urban water pollution, the rainwater makes the rainwater part absorbed simultaneously through sponge city bank protection structure and discharges into the water after purifying, reduces flood discharge pressure, can also reach the purpose of purifying water quality.
The technical scheme for realizing the purpose is as follows:
the utility model provides a sponge city river course flood discharge structure, this river course both sides have the slope body of slope, are formed with the stair structure on this slope body, and this stair structure includes plane and facade that connects gradually, and this flood discharge structure includes:
a plurality of detention ponds arranged on the plane, wherein plants are planted in the detention ponds;
the retaining wall is attached to the vertical surface and provided with overflow holes communicated with the detention pools on two adjacent planes; and
and the revetment area is arranged at the part of the slope body close to the river channel and is used for reinforcing the slope body.
The utility model discloses a sponge city river course flood discharge structure, through setting up delay pond and barricade on the slope body in river course both sides, and plant the plant in the delay pond, make the rainwater pass through each delay pond, and the plant in the delay pond absorbs partial rainwater, and the pollutant in this rainwater of filtering, and slow down the velocity of flow of rainwater, finally discharge in the river course, and refute bank district on the slope body can further consolidate the slope body and prevent soil erosion and water loss, the problem that urban water pollutes seriously and flood discharge inefficiency has been solved effectively, the rainwater makes the rainwater part absorbed through sponge city bank protection structure and discharges into the water after purifying simultaneously, reduce flood discharge pressure, can also reach the purpose of purifying water quality.
The utility model discloses sponge city river course flood discharge structure's further improvement lies in, and the overflow hole department that river course one side was kept away from to this barricade still is equipped with anti-package of straining, and the rainwater in the retention pond that river course one side was kept away from to this barricade flows in the retention pond of barricade opposite side from the overflow hole through anti-package of straining to the earth in the filtering rainwater.
The utility model discloses sponge city river course flood discharge structure's further improvement lies in, should anti-filter the embedding and locate the earth that is detained the pond and is close to overflow hole department, should anti-filter the package including the shutoff in the coarse gravel layer of overflow hole opening part, locate coarse gravel layer and keep away from the fine gravel layer of overflow hole one side and wrap up the geotechnological cloth who lives coarse gravel layer and fine gravel layer, the grit particle diameter in this coarse gravel layer is greater than the grit particle diameter in the fine gravel layer.
The utility model discloses sponge city river course flood discharge structure's further improvement lies in, still including setting up in the overflow hole and keeping away from the cobble district that anti-package one side strained, has a plurality of cobbles in this cobble district, and the rainwater that flows from the overflow hole passes through the silt of cobble district in order to slow down the velocity of flow and filtering rainwater of rainwater.
The utility model discloses sponge city river course flood discharge structure's further improvement lies in, should refute the bank district for stone revetment, imitative stake revetment, ecological concrete revetment or ecological bag revetment.
The utility model discloses sponge city river course flood discharge structure's further improvement lies in, and this revetment district is the stone revetment, including a plurality of stone blocks of piling up along the slope body, has laid the geotechnological cloth that permeates water between this stone block and the slope body.
The utility model discloses sponge city river course flood discharge structure's further improvement lies in, and this revetment district is the ecological bag shore protection, including a plurality of cylinder moulds and fill the rubble in the cylinder mould, stack the cylinder mould in order to form the ecological bag shore protection through along the slope body.
The utility model discloses sponge city river course flood discharge structure's further improvement lies in, and this barricade top is equipped with the capping beam along the direction that the barricade extends.
Drawings
Figure 1 is the utility model discloses the front section view of sponge city river course flood discharge structure.
Fig. 2 is the utility model discloses a section view overlooked of sponge city river course flood discharge structure.
Fig. 3 is the utility model discloses sponge city river course flood discharge structure anti-section view of straining a packet part.
Fig. 4 is the utility model discloses an embodiment schematic diagram of revetment district of sponge city river flood discharge structure.
Fig. 5 is the utility model discloses still another embodiment schematic diagram in revetment district of sponge city river course flood discharge structure.
Fig. 6 is the utility model discloses still another embodiment schematic diagram in revetment district of sponge city river course flood discharge structure.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, the utility model provides a sponge city river course flood discharge structure, through set up delay pond and barricade on the slope body in river course both sides, and plant the plant in the delay pond, make the rainwater pass through each delay pond, and the plant in the delay pond absorbs partial rainwater, and the pollutant in this rainwater of filtering, and slow down the velocity of flow of rainwater, finally discharge in the river course, and refute the bank district on the slope body and can further consolidate the slope body and prevent soil erosion and water loss, the problem that urban water pollutes seriously and the flood discharge inefficiency has been solved effectively, the rainwater makes the rainwater part absorbed through sponge city bank protection structure and discharges into the water after purifying simultaneously, reduce flood discharge pressure, can also reach the purpose of purifying water quality. The following description is provided with reference to the accompanying drawings for the flood discharge structure of the sponge city river channel.
Referring to fig. 1, fig. 1 is a front cross-sectional view of the flood discharge structure of the river channel in the sponge city. The structure of the flood discharge structure of the river course in the sponge city is described below with reference to fig. 1.
As shown in fig. 1 and 2, the utility model discloses sponge city river course flood discharge structure, this river course 21 both sides have the slope body of slope, are formed with the stair structure on this slope body, and this stair structure includes plane and facade that connects gradually, and this flood discharge structure includes:
a plurality of detention ponds 11 arranged on a plane, wherein plants are planted in the detention ponds 11;
a retaining wall 12 arranged on the vertical surface is attached, and overflow holes 122 for communicating the detention ponds 11 on two adjacent planes are formed in the retaining wall 12; and
set up in the slope body and be close to river course 21 part and supply to consolidate the revetment district 13 of the slope body, the rainwater is followed structures such as town road and is flowed into and is detained in the pond 11, and not by this the rainwater that is detained 11 absorptive rainwater can be through overflow hole 122 inflow next grade on the barricade 12 and be detained in the pond 11, and the plant in the pond 11 of detaining on the process can filter the partial pollutant in the rainwater, reach the effect of purification, and make during the slow inward-remittance river course 21 of rainwater, the plant in the detention pond 11 can also prevent that soil from being washed into in the river course 21 by the rainwater, revetment district 13 further consolidates the slope body and also prevents that soil from flowing.
Preferably, the soil planting and replacement filling thickness is 500mM, the water storage depth of the retention pool is 200mM, the width of the uppermost part of the retaining wall is 500mM, one side of the retaining wall, which is close to the reverse filter bag, is inclined, the other side of the retaining wall is vertical, the gradient is 1: 0.4, the part of the retaining wall, which is exposed out of the soil surface, is not less than 2130mM, the depth of the retaining wall, which is embedded into the soil, is 1100mM, the replacement and filling base material at the lower part of the retaining wall is mountain skin stone, the depth is 1200mM, the width is 2040mM, the compaction degree is not less than 0.94, the retaining wall adopts a mortar-masonry rubble structure, the strength is MU40, and the masonry.
As a preferred embodiment of the present invention, referring to fig. 3, the overflow hole 122 of the retaining wall 12 far from the river is further provided with a reverse filter bag 111, and the rainwater in the retention pond 11 of the retaining wall 12 far from the river 21 flows into the retention pond 11 of the retaining wall 12 at the other side from the overflow hole 122 through the reverse filter bag 111 to filter the soil in the rainwater.
Preferably, the top of the retaining wall 12 is provided with a capping beam 121 along the direction in which the retaining wall 12 extends, and the capping beam 122 can make the structure of the retaining wall 12 more stable.
Furthermore, the anti-filter bag 111 is embedded in the soil near the overflow hole 122 of the retention pond 11, the anti-filter bag 111 comprises a coarse gravel layer 1111 plugged at the opening of the overflow hole 122, a fine gravel layer 1112 arranged on one side of the coarse gravel layer 1111 far away from the overflow hole 122, and geotextile wrapping the coarse gravel layer 1111 and the fine gravel layer 1112, the particle size of sand in the coarse gravel layer 1111 is larger than that of sand in the fine gravel layer 1112, and rainwater filtered through the fine gravel layer 1112 to filter the soil, then flows through the coarse gravel layer 1111 to the overflow hole 122 and flows into the retention pond 11 of the next stage.
Further, as shown in fig. 2, the rainwater filter further includes a pebble area 112 disposed on a side of the overflow hole 122 far from the reverse filter bag 111, the pebble area 112 has a plurality of pebbles therein, and rainwater flowing out of the overflow hole 122 passes through the pebble area 112 to slow down a flow rate of the rainwater and filter silt in the rainwater.
Preferably, the pebble zone is a semicircle with the radius of 500mm, the depth is 150mm, and the particle diameter of the adopted pebbles is 30 mm-50 mm.
Preferably, the revetment area 13 is a block stone revetment, a wood-like pile revetment, an ecological concrete revetment or an ecological bag revetment.
Specifically, as shown in fig. 4, the revetment zone 13 is a rock block revetment, which includes a plurality of rock blocks stacked along a slope, and a permeable geotextile is laid between the rock blocks and the slope.
Specifically, as shown in fig. 6, the revetment area 13 is a bio-bag revetment, and includes a plurality of net cages and gravel filled in the net cages 131, and the net cages are stacked along a slope to form the bio-bag revetment.
Specifically, as shown in fig. 5, this revetment district 13 is wood-like pile revetment, including the wood-like pile of vertical setting, wood-like pile is close to one side of detention pond 11 and is piled up a plurality of ecological bags in order to form wood-like pile revetment.
Preferably, the concrete cushion layer of the shore protection part of the wood-like pile is a plain concrete cushion layer with the thickness of 100mmC15, the width of the concrete cushion layer is 1700mm, the lower structure of the shore protection part of the wood-like pile is a reinforced concrete slab with the thickness of 200mmC30, the inner diameter of the reinforced concrete slab is 10mmHRB400, the two layers are arranged in a two-way mode at intervals of 200mm, the width of the front side of the reinforced concrete slab at the lower part of the wood-like pile is 400mm, the width of the back side of the reinforced concrete slab is 900mm, the wood-like pile of the shore protection part of the wood-like pile is a reinforced concrete cylinder with the diameter of.
Preferably, the ecological concrete revetment is made of high-strength ecological concrete with the thickness of 120mm, the lower part of the slope toe of the ecological concrete revetment is a mountain stone replacement and filling foundation, the replacement and filling depth is 800mm, the width is 1100mm, the tamping degree is not less than 0.94, the slope toe is made of C30 reinforced concrete, the embedding depth is 300mm, the width is 500mm, the internal diameter is 8mmHRB400 reinforcing mesh, and the distance is 200 mm.
Preferably, the ecological bag revetment uses mesh cages with the size of 1500mm x 500mm and is filled with gravels with the grain diameter of more than 300 mm.
The specific implementation manner of the utility model is as follows:
step-shaped retention ponds 11 are arranged on the slope bodies on the two sides of the river channel 21, retaining walls 12 are arranged between the adjacent retention ponds 11, and a revetment zone 13 is arranged at the position, close to the river channel 21, of the slope body to reinforce the slope body and avoid collapse and soil loss;
rainwater flows into the retention pond 11 from the municipal building, and after being absorbed by plants and soil in the retention pond 11, the residual rainwater flows into the overflow hole after passing through the reverse filter bag 111, the reverse filter bag 111 filters soil in the rainwater, so that the soil in the retention pond 11 is prevented from flowing into the retention pond 11 of the next stage along with the rainwater, and the overflow hole 122 can also be prevented from being blocked;
rainwater flowing out of the overflow holes 122 flows into the pebble area 112, pebbles in the pebble area 112 can slow down the flowing speed of the rainwater and further filter silt in the rainwater, so that the rainwater can be fully absorbed by soil and trees in the detention pond 11;
surplus rainwater flows into river course 21 through refuting bank district 13, because the rainwater has passed through a plurality of detention ponds 11, and the soil and the trees in the detention pond 11 have absorbed more moisture, have consequently reduced the flood discharge volume, have alleviateed the pressure of river course 21 flood discharge, and soil and water wood in the detention pond 11 purify the rainwater in addition, have gone out the pollutant in the rainwater to river course 21's quality of water has been guaranteed.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (8)
1. The utility model provides a sponge city river course flood discharge structure, its characterized in that, the river course both sides have the slope body of slope, be formed with the stair structure on the slope body, the stair structure is including the plane and the facade that connect gradually, the flood discharge structure includes:
a plurality of detention ponds arranged on the plane, wherein plants are planted in the detention ponds;
the retaining wall is attached to the vertical surface, and overflow holes for communicating the retention ponds on two adjacent planes are formed in the retaining wall; and
and the revetment area is arranged on the slope body, is close to the river channel part and is used for reinforcing the slope body.
2. The flood discharge structure for the river channel in the sponge city according to claim 1, wherein a reverse filter bag is further disposed at the overflow hole on one side of the retaining wall away from the river channel, and rainwater in the detention pond on one side of the retaining wall away from the river channel flows into the detention pond on the other side of the retaining wall from the overflow hole through the reverse filter bag to filter out soil in the rainwater.
3. The flood discharge structure for the river channel in the sponge city according to claim 2, wherein the reverse filter is embedded in the soil of the retention pond near the overflow hole, the reverse filter bag comprises a coarse gravel layer blocking the opening of the overflow hole, a fine gravel layer arranged on the side of the coarse gravel layer far away from the overflow hole, and a geotextile wrapping the coarse gravel layer and the fine gravel layer, and the particle size of the sand in the coarse gravel layer is larger than that of the sand in the fine gravel layer.
4. The flood discharge structure for the river channel in the sponge city according to claim 2, further comprising a pebble section disposed on a side of the overflow hole away from the reverse filter bag, wherein the pebble section has a plurality of pebbles therein, and rainwater flowing out from the overflow hole passes through the pebble section to slow down the flow rate of the rainwater and filter silt in the rainwater.
5. The sponge city river flood discharge structure of claim 1, wherein the bank refuge area is a rock block bank protection, a wood pile imitation bank protection, an ecological concrete bank protection or an ecological bag bank protection.
6. The sponge city riverway flood discharge structure according to claim 5, wherein the bank refuting area is a rock block bank protection and comprises a plurality of rock blocks piled along the slope body, and a water permeable geotextile is laid between the rock blocks and the slope body.
7. The sponge city river flood discharge structure of claim 5, wherein the revetment area is an ecological bag revetment comprising a plurality of net cages and crushed stones filled in the net cages, and the net cages are stacked along the slope body to form the ecological bag revetment.
8. The sponge city river flood discharge structure as claimed in claim 2, wherein the top of the retaining wall is provided with a capping beam along the extending direction of the retaining wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920861648.6U CN210395266U (en) | 2019-06-10 | 2019-06-10 | Sponge city river course flood discharge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920861648.6U CN210395266U (en) | 2019-06-10 | 2019-06-10 | Sponge city river course flood discharge structure |
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| Publication Number | Publication Date |
|---|---|
| CN210395266U true CN210395266U (en) | 2020-04-24 |
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| CN201920861648.6U Active CN210395266U (en) | 2019-06-10 | 2019-06-10 | Sponge city river course flood discharge structure |
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| CN (1) | CN210395266U (en) |
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- 2019-06-10 CN CN201920861648.6U patent/CN210395266U/en active Active
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