CN212505699U

CN212505699U - Sponge urban road drainage structures

Info

Publication number: CN212505699U
Application number: CN202021076723.7U
Authority: CN
Inventors: 池春生; 马蓉蓉
Original assignee: Hangzhou Jiangteng Construction Engineering Co ltd
Current assignee: Hangzhou Jiangteng Construction Engineering Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-02-09
Anticipated expiration: 2030-06-11

Abstract

The utility model relates to a sponge urban road drainage structure relates to town road technical field. The water drainage system comprises a pavement, drainage ditches are arranged on two sides of the pavement along the extending direction of the pavement, a first water storage layer is arranged at the lower parts of the drainage ditches, drainage pipes are arranged on the upper sides of the first water storage layers of the drainage ditches, water permeable holes are formed in the parts above the horizontal central lines of the drainage pipes, and the tail ends of the drainage pipes are connected to a river channel or a drainage channel; first reservoir upper portion is filled there is the second reservoir, the upper end height and the drain pipe horizontal center line parallel and level of second reservoir, and drain pipe upper portion is provided with the drainage blanket, and first geotechnological cloth has been laid on second reservoir upper portion, and the escape canal is provided with the planting portion that is used for planting green planting in first geotechnological cloth upper portion, is provided with second geotechnological cloth between drainage blanket and the planting portion, and the packing height of planting portion and drainage blanket is less than the height on road surface. The utility model discloses have the effect that can improve the utilization ratio of rainwater.

Description

Sponge urban road drainage structures

Technical Field

The utility model belongs to the technical field of the town road technique and specifically relates to a sponge urban road drainage structure is related to.

Background

The sponge city is a new generation of city rain and flood management concept, and means that the city can have good elasticity in the aspects of adapting to environmental changes, coping with natural disasters and the like a sponge, absorb, store, seep and purify water during rain, release and utilize the stored water when needed, and realize the free migration of rainwater in the city, and the city can also be called as a water elasticity city. Sponge city construction follows principles of ecological priority and the like, natural ways and artificial measures are combined, rainwater is stored, permeated and purified in urban areas to the maximum extent, and utilization of rainwater resources and ecological environment protection are promoted.

The utility model with the prior authorization notice number of CN209669629U discloses a water seepage road surface, which comprises a road, drainage ditches are arranged on both sides of the road, the road comprises a base stone layer, a cobble layer fixedly connected on the base stone layer, a concrete layer fixedly connected on the cobble layer and an asphalt layer fixedly connected on the concrete layer, a plurality of groups of water through holes are arranged on the concrete layer at uniform intervals, retaining walls are fixedly connected on both sides of the road, a plurality of groups of water flowing holes are uniformly arranged on the retaining wall at intervals, and the road is divided into a basal stone layer, a cobblestone layer, a concrete layer and an asphalt layer, a plurality of groups of water through holes are arranged on the concrete layer, retaining walls are fixedly connected on the two sides of the road, water flowing holes are arranged on the retaining walls, water on the road flows onto the concrete layer from the asphalt layer, flows to the cobble layer through the through holes on the concrete layer and flows to the drainage ditch through the flow holes on the retaining wall to be discharged.

The above prior art solutions have the following drawbacks: in water infiltration discharge entering escape canal on the road surface, the water in the escape canal directly arranges the river course irrigation canals and ditches to the town road drainage network, and is lower to the utilization ratio of rainwater.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a sponge urban road drainage structure, it has the effect that can improve the utilization ratio of rainwater.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a sponge urban road drainage structure comprises a road surface, drainage ditches are arranged on two sides of the road surface along the extending direction of the road surface, a first water storage layer is arranged at the lower parts of the drainage ditches, drainage pipes are arranged on the upper sides of the first water storage layers of the drainage ditches, water permeable holes are formed in the parts above the horizontal central lines of the drainage pipes, and the tail ends of the drainage pipes are connected to a river channel or a drainage channel; a second water storage layer is filled at the upper part of the first water storage layer, the height of the upper end of the second water storage layer is flush with the horizontal central line of the drain pipe, a drain layer is arranged at the upper part of the drain pipe, first geotextile is laid at the upper part of the second water storage layer, a planting part for planting green plants is arranged at the upper part of the first geotextile of the drain ditch, and second geotextile is arranged between the drain layer and the planting part; the filling height of the planting part and the drainage layer is lower than the height of the road surface.

By adopting the technical scheme, because the filling height of the planting parts and the drainage layers is lower than that of the road surface, when raining, rainwater flows from the road surface to drainage ditches at two sides of the road surface, when the rainwater is smaller, the rainwater permeates to the first water storage layer after flowing through the planting parts, and when the rainwater at the bottoms of the drainage ditches is accumulated to exceed the horizontal central line of the drainage pipe, the rainwater enters the drainage pipe through the water permeable holes and then flows to the water storage tank from the drainage pipe; when the rainwater is great, the rainwater flows through planting portion to the drainage blanket, from drainage blanket infiltration to drain pipe, at the in-process that the rainwater flows, realizes watering the green planting of planting in the portion of planting, and in the period of not precipitation, the rainwater that accumulates at first reservoir bed and second reservoir bed can supply the green growth of planting of portion to use, makes the rainwater realize the infiltration and store up, improves the recycle ratio of rainwater.

The present invention may be further configured in a preferred embodiment as: the drainage ditch is provided with water storage tanks at intervals along the extension direction of the drainage ditch, the drainage pipe is connected with the water storage tanks, and water outlet pipes are connected between the water storage tanks and the planting parts.

Through adopting above-mentioned technical scheme, when not precipitation for a long time, use pumping device to take out the water in the pond from the outlet pipe, can be used for the watering of green planting.

The present invention may be further configured in a preferred embodiment as: the escape canal includes two side slopes, the side slope lower extreme is provided with the bottom plate, the side slope sets up to slope the downward setting from the one end of keeping away from the bottom plate to the one end that is close to the bottom plate.

Through adopting above-mentioned technical scheme, slope sets up downwards, is convenient for make the rainwater flow to the escape canal along the side slope in.

The present invention may be further configured in a preferred embodiment as: the planting part is arranged to be obliquely and downwards arranged from one side far away from the drainage layer to one side close to the drainage layer.

Through adopting above-mentioned technical scheme, planting portion is formed with the slope, and when the rainfall was great, the slope was favorable to fast with rainwater from planting portion water conservancy diversion to drainage blanket.

The present invention may be further configured in a preferred embodiment as: first reservoir stratum, second reservoir stratum and drainage blanket all adopt the rubble to fill, the hole aperture of permeating water is less than the particle diameter of rubble.

By adopting the technical scheme, when rainwater flows to the first water storage layer and the second water storage layer, partial moisture can be accumulated in gaps of the broken stones, so that moisture required by growth of green plants in the planting parts can be maintained conveniently; the drainage blanket adopts the rubble to fill, and when the rainwater flowed to the drainage blanket upper end, the space between the rubble was convenient for with rainwater water conservancy diversion to drain pipe, and the hole aperture of permeating water is less than the rubble particle diameter, can avoid the rubble to fall into in the drain pipe.

The present invention may be further configured in a preferred embodiment as: the drain pipe is connected to the upper end of the water storage tank.

Through adopting above-mentioned technical scheme, drain pipe connection is in the upper end of tank, and when precipitation was great, the moisture accumulation in the tank was to the upper portion of tank, then from the outflow of adjacent drain pipe, when a plurality of tanks all accumulated to tank upper portion, rainwater overflow to terminal water piping connection's river course or drainage canal.

The present invention may be further configured in a preferred embodiment as: one end of the water outlet pipe, which is arranged in the water storage tank, is connected with a filter screen, and one end of the water outlet pipe, which extends out of the drainage layer, is provided with an end cover.

By adopting the technical scheme, the water outlet pipe is arranged at one end of the water storage tank and is connected with the filter screen, so that the water outlet pipe can be effectively prevented from being blocked; the water outlet pipe stretches out the one end connection end cover of drainage blanket, can prevent that debris from falling into the water outlet pipe, and the end cover plays the closure to the water outlet pipe, improves the security.

The present invention may be further configured in a preferred embodiment as: the road surface is arranged from the middle part to the two sides of the road surface in an inclined and downward way.

By adopting the technical scheme, the road surface is provided with a certain inclination angle, so that rainwater can flow towards the two sides of the drainage ditch along the road surface.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the rain water does not fall for a long time, the water in the water storage tank is pumped out from the water outlet pipe by using the water pumping device and can be used for watering the green plants, so that the rain water is permeated and accumulated, and the recovery and utilization rate of the rain water is improved;

2. the planting part is provided with a slope, and when rainfall is heavy, the slope is favorable for quickly guiding rainwater from the planting part to the drainage layer;

3. when rainwater flows to the first water storage layer and the second water storage layer, partial moisture can be accumulated in gaps of the broken stones, so that moisture required by growth of green plants in the planting parts can be maintained conveniently; the drainage blanket adopts the rubble to fill, and when the rainwater flowed to the drainage blanket upper end, the space between the rubble was convenient for water conservancy diversion to the drain pipe with the rainwater.

Drawings

FIG. 1 is a schematic structural view of the overall structure of the present embodiment;

FIG. 2 is a schematic view showing the structure of a drainage ditch according to the present embodiment;

fig. 3 is a schematic sectional view at a-a in fig. 1.

Reference numerals: 1. a pavement; 2. a drainage ditch; 3. side slope; 4. a base plate; 5. a first water storage layer; 6. a second water storage layer; 7. a drain pipe; 8. water permeable holes; 9. a first geotextile; 10. a second geotextile; 11. a planting part; 12. a drainage layer; 13. a water storage tank; 14. a cover plate; 15. a water outlet pipe; 16. a filter screen; 17. and (4) end covers.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a sponge urban road drainage structure, including road surface 1, road surface 1 sets up to set up downwards by the middle part to 1 both sides slope in road surface, and 1 both sides in road surface are provided with escape canal 2 along 1 extending direction in road surface. The drainage ditch 2 comprises two side slopes 3, the lower ends of the side slopes 3 are provided with bottom plates 4, and the side slopes 3 and the bottom plates 4 are of concrete structures.

Referring to fig. 1 and 2, a first water storage layer 5 is arranged at the lower part of the drainage ditch 2, a drainage pipe 7 is arranged at the upper part of the first water storage layer 5, a water permeable hole 8 is arranged at the part above the horizontal central line of the drainage pipe 7, and the tail end of the drainage pipe 7 is connected to a river channel or a drainage channel. Second reservoir 6 has been laid on 5 upper portions of first reservoir, and the 6 upper portions of second reservoir highly flushes with 7 horizontal center lines of drain pipe, and second reservoir 6 upper berth is equipped with first geotechnological cloth 9. First geotechnique's cloth 9 upper portion is provided with planting portion 11 that is used for planting green planting, and drain pipe 7 upper portion is provided with drainage blanket 12, has laid second geotechnological cloth 10 between planting portion 11 and the drainage blanket 12, and planting portion 11 sets up to the one side slope that is close to drainage blanket 12 from a side of keeping away from drainage blanket 12 and sets up downwards, and the packing height of planting portion 11 and drainage blanket 12 is less than the height on road surface 1. The drainage layer 12, the first water storage layer 5 and the second water storage layer 6 are filled with broken stones, and the aperture of the permeable hole 8 is smaller than the particle size of the broken stones.

Referring to fig. 3, the drainage ditch 2 is provided with water storage tanks 13 at intervals along the extending direction thereof, in this embodiment, one water storage tank 13 is taken as an example, the drainage pipes 7 located at two sides of the water storage tank 13 are connected at the upper end of the water storage tank 13, the water storage tank 13 is provided with a cover plate 14, and the cover plate 14 is located in the drainage ditch 2. Be provided with outlet pipe 15 in the tank 13, outlet pipe 15 one end extends to the lower extreme of tank 13, and the one end mouth of pipe that outlet pipe 15 is located tank 13 is connected with filter screen 16, and the one end that filter screen 16 was kept away from to outlet pipe 15 stretches out to the upper end of drainage blanket 12 from apron 14, and the position that outlet pipe 15 is located drainage blanket 12 upper end is connected with end cover 17.

When the drainage ditch 2 is constructed, the drainage ditch 2 is dug at two sides of the road surface 1, and the number of the water storage tanks 13 is configured according to the rainfall of different areas and the requirement of green plant irrigation water. The first water storage layer 5 is filled with broken stones at the bottom of the drainage ditch 2, the drainage pipe 7 is placed on the first water storage layer 5, the second water storage layer 6 is filled outside the drainage pipe 7, and the height of the second water storage layer 6 is filled to be flush with the horizontal center line of the drainage pipe 7. And then laying the first geotextile 9, so that the first geotextile 9 covers the second water storage layer 6. The method comprises the following steps of placing partition plates on the left side and the right side of a position where a drainage layer 12 is to be laid, laying second geotextile 10 on the partition plates, filling cultivation soil outside the two partition plates to form a planting part 11, filling broken stones inside the two partition plates to form the drainage layer 12, and taking out the partition plates after filling. After the cover plate 14 of the water storage tank 13 is installed, the cover plate 14 is filled with crushed stone so that the crushed stone is flush with the upper end of the adjacent drainage layer 12. The water outlet pipe 15 connected with the water storage tank 13 extends out of the drainage layer 12.

The embodiment of the present invention:

when the road surface 1 is rainfall, the rainwater flows to the drainage ditch 2 from the road surface 1, because the filling height of the planting part 11 and the drainage layer 12 is lower than the road surface 1, when raining, the rainwater flows to the drainage ditch 2 on both sides of the road surface 1 from the road surface 1, and when the rainwater is small, the rainwater permeates to the first water storage layer 5 and the second water storage layer 6 after flowing through the planting part 11. When the rainwater at the bottom of the drainage ditch 2 is accumulated to exceed the horizontal center line of the drainage pipe 7, the rainwater enters the drainage pipe 7 through the permeable holes 8 and then flows to the water storage tank 13 from the drainage pipe 7. When the rainwater is large, the rainwater flows through the planting portion 11 to the drainage layer 12, and permeates from the drainage layer 12 to the drainage pipe 7. In the period of not precipitation, the accumulation can supply the 11 green growths of planting of portion to use in the rainwater of first reservoir 5 and second reservoir 6, when long-term not precipitation, uses pumping device to take out the water in 13 cisterns from outlet pipe 15, can be used for the watering of green planting, makes the rainwater realize the infiltration and store up, and effectual recycle is realized to the rainwater.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a sponge urban road drainage structure, includes road surface (1), road surface (1) both sides are provided with escape canal (2), its characterized in that along road surface (1) extending direction: a first water storage layer (5) is arranged at the lower part of the drainage ditch (2), a drainage pipe (7) is arranged on the upper side of the first water storage layer (5) of the drainage ditch (2), a water permeable hole (8) is arranged at the part above the horizontal central line of the drainage pipe (7), and the tail end of the drainage pipe (7) is connected to a river channel or a drainage channel; a second water storage layer (6) is filled at the upper part of the first water storage layer (5), the upper end of the second water storage layer (6) is flush with the horizontal central line of the drain pipe (7), a drain layer (12) is arranged at the upper part of the drain pipe (7), a first geotextile (9) is laid at the upper part of the second water storage layer (6), a planting part (11) for planting green plants is arranged at the upper part of the first geotextile (9) of the drainage ditch (2), and a second geotextile (10) is arranged between the drain layer (12) and the planting part (11); the filling height of the planting part (11) and the drainage layer (12) is lower than the height of the road surface (1).

2. The sponge urban road drainage structure of claim 1, wherein: escape canal (2) are provided with tank (13) along its extending direction interval, drain pipe (7) are connected with tank (13), be connected with outlet pipe (15) between tank (13) and planting portion (11).

3. The sponge urban road drainage structure of claim 1, wherein: the drainage ditch (2) comprises two side slopes (3), the lower end of each side slope (3) is provided with a bottom plate (4), and each side slope (3) is arranged to incline downwards from one end far away from the bottom plate (4) to one end close to the bottom plate (4).

4. The sponge urban road drainage structure of claim 1, wherein: the planting part (11) is arranged to be inclined downwards from one side far away from the drainage layer (12) to one side close to the drainage layer (12).

5. The sponge urban road drainage structure of claim 1, wherein: first reservoir stratum (5), second reservoir stratum (6) and drainage blanket (12) all adopt the rubble to fill, hole of permeating water (8) aperture is less than the particle diameter of rubble.

6. The sponge urban road drainage structure of claim 2, wherein: the drain pipe (7) is connected to the upper end of the water storage tank (13).

7. The sponge urban road drainage structure of claim 2, wherein: one end of the water outlet pipe (15) arranged in the water storage tank (13) is connected with a filter screen (16), and one end of the water outlet pipe (15) extending out of the drainage layer (12) is provided with an end cover (17).

8. The sponge urban road drainage structure of claim 1, wherein: the pavement (1) is arranged from the middle part to the two sides of the pavement (1) in an inclined and downward mode.