CN222666456U - A rainwater collection and drainage system on the sidewalk surface of a green belt - Google Patents

Abstract

The application provides a system for collecting and discharging rainwater on the surface of a green belt side pavement, which comprises a laterally inclined pavement and a rainwater collecting and discharging assembly arranged below the side of the green belt, wherein the rainwater collecting and discharging assembly comprises a standing rim connected with the short edge of the pavement and provided with openings, soft permeable pipes arranged below the standing rim, the soft permeable pipes are distributed along the direction of the pavement and are configured to receive the rainwater from the surface of the pavement through the openings of the standing rim, a crushed stone inverted filter layer is arranged below the standing rim, the crushed stone inverted filter layer is coated on the outer side of the soft permeable pipes, and at least one connecting pipe is partially arranged in the crushed stone inverted filter layer in a penetrating mode and is communicated with the soft permeable pipes and a rainwater inlet beside a motor vehicle. The scheme provided by the application can improve the drainage efficiency.

Description

System for collecting and discharging rainwater on surface of greenbelt side pavement

Technical Field

The utility model relates to the technical field of road infrastructure, in particular to a system for collecting and discharging rainwater on the surface of a greenbelt side pavement.

Background

According to the standard requirements, most of the existing municipal roads are provided with rainwater pipelines which mainly collect and discharge rainwater on road surfaces and rainwater on surrounding land blocks.

At present, a rainwater pipeline is mainly provided with rainwater inlets at intervals of 20-50m at the positions of curb stones at the outer sides of motor vehicle lanes, and road rainwater is discharged into the rainwater inlets through a road transverse slope and then is discharged into a rainwater main pipe through a rainwater inlet connecting pipe. Along with the acceleration of the urban process, when new construction/reconstruction design is carried out on urban roads, green belts are often adopted as mechanical and non-isolation belts to improve driving safety and traffic efficiency, so that sidewalk rainwater is required to pass through the green belts and then drain into a rainwater collecting port.

In order to solve the problems, the current general solution is that 1, the green belt is disconnected at the corresponding rainwater collecting opening, and the green belt is hardened and paved, so that water is transversely discharged into the rainwater collecting opening through the surface hardening paving position. 2. And a water inlet is independently arranged at the side of the sidewalk and then is discharged into a rainwater system. 3. The permeable sidewalk is adopted, and the problem of rainwater drainage is solved through infiltration.

The problem of the above solution is mainly that in the construction of pavement bricks, the gradient is one of the key factors, and reasonable gradient can ensure that rainwater is smoothly discharged without water accumulation. The pavement is vertically and horizontally drained in design, rainwater is drained into a set rainwater outlet position, but in the construction process, the pavement gradient and flatness are often a key problem which is easy to neglect, so that a locally obvious ponding phenomenon can occur in the later actual running process, and the quality problem is often discovered when the situation happens. The theoretical design reaches the standard, and the actual construction is seriously shrunk.

Disclosure of utility model

In order to solve at least one of the technical problems, the embodiment of the application aims to provide a system for collecting and discharging rainwater on the surface of a sidewalk on a green belt, which can solve the technical problems of accumulation of rainwater and untimely discharge of the sidewalk.

The embodiment of the application provides a system for collecting and discharging rainwater on the surface of a greenbelt side pavement, which comprises a sidewalk which is transversely inclined and a rainwater collecting and discharging assembly which is arranged below the side of the greenbelt, wherein the rainwater collecting and discharging assembly comprises:

A standing stone connected to the short side of the pavement, the standing stone having an opening;

A flexible water permeable tube disposed below the riser, the flexible water permeable tube being distributed along the direction of the pavement and configured to receive rain water from the pavement surface via the opening of the riser;

the broken stone reverse filtering layer is arranged below the standing rim stone and is coated on the outer side of the soft permeable pipe;

At least one connecting pipe which is partially penetrated in the broken stone reverse filtering layer is communicated with the soft water permeable pipe and the water inlet beside the motor vehicle road.

Preferably, if the number of the connection pipes is plural, the plural connection pipes are spaced apart along the direction of the soft water permeable pipe.

Preferably, a rough layer is arranged on the outer side of one end, close to the gully, of the connecting pipe.

Preferably, the connecting pipe stretches into the inlet for stom water, and is fixedly connected with the inlet for stom water through the cement mortar layer that the cover is established on the connecting pipe outer wall.

Preferably, the rainwater collection and drainage assembly further comprises a barrier layer arranged below the crushed stone reversed filter layer.

Preferably, the barrier layer is made of a water impermeable geotextile material.

Preferably, the diameter of the soft water permeable tube is the same as the connecting tube.

Preferably, the pipe diameter of the soft water permeable pipe is 200mm.

Preferably, the soft water permeable pipe is communicated with the connecting pipe through a tee pipe fitting.

Preferably, the standing stone comprises an upper part and a lower part, each lower part is connected in sequence in an end-to-end mode, and two adjacent upper parts are spaced and opposite to form the opening.

The embodiment of the application has the beneficial effects that:

The rainwater collecting and discharging assembly is designed between the motor vehicle lane and the green belt between the sidewalks, and the sidewalks are obliquely arranged towards the green belt, so that rainwater on the surfaces of the sidewalks can rapidly move into the rainwater collecting and discharging assembly and is discharged outwards through the rainwater inlet beside the motor vehicle lane, the runoff time of the rainwater on the pavement surface layer can be reduced, the drainage efficiency is improved, and the influence of the water permeability efficiency of the pavement structural layer is avoided.

Drawings

FIG. 1 is a schematic view showing a construction of a greenbelt-side pavement surface rainwater collecting and discharging system according to an embodiment of the present application;

FIG. 2 is a schematic view of a drainage plane of a greenbelt-side pavement surface rainwater collection and drainage system according to an embodiment of the present application;

FIG. 3 is a schematic view showing a connection pipe connected to a gully according to an embodiment of the present application;

FIG. 4 is a schematic view of a three-way fitting connected to a flexible water permeable tube and a connecting tube according to an embodiment of the present application;

FIG. 5 is a schematic view of an arrangement of a standing stone according to an embodiment of the present application;

In the figure, 1, a sidewalk, 2, a standing stone, 20, an opening, 21, an upper part, 22, a lower part, 3, a soft permeable pipe, 4, a broken stone reverse filtering layer, 5, a connecting pipe, 6, an interlayer, 7, a rainwater inlet, 8, a three-way pipe fitting, 9, a cement mortar layer and 10, a rough layer.

Detailed Description

The technical solutions in the embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in fig. 1 and 2, an embodiment of the present application provides a greenbelt-side pavement surface rainwater collecting and discharging system including a sidewalk 1 inclined laterally and a rainwater collecting and discharging assembly provided under a greenbelt side, the rainwater collecting and discharging assembly including:

A standing stone 2 connected to the short side of the pavement 1, and the standing stone 2 has an opening 20;

A flexible water permeable pipe 3 provided below the standing rim stone 2, the flexible water permeable pipe 3 being distributed along the direction of the sidewalk 1 and configured to receive rainwater from the surface of the sidewalk 1 via the opening of the standing rim stone 2;

the broken stone reverse filtering layer 4 is arranged below the standing rim stone 2, and the broken stone reverse filtering layer 4 is coated on the outer side of the soft permeable pipe 3;

At least one connecting pipe 5 which is partially penetrated in the crushed stone reverse filtering layer 4, wherein the connecting pipe 5 is communicated with the soft water permeable pipe 3 and a water inlet 7 beside a motor vehicle road.

In the embodiment of the application, after rainwater on the side of the sidewalk is collected to the edge of the sidewalk through the slope of the sidewalk 1, the rainwater is discharged into the side of the green belt through the gap of the opening 20 of the curb 2, the rainwater passes through the surface layer planting soil of the green belt and is discharged into the soft permeable pipe 3 through the crushed stone reverse filtering layer 4, the soft permeable pipe 3 can collect the rainwater along the direction of the sidewalk 1, and finally, the rainwater is discharged into the rainwater inlet 7 through the connecting pipe 5, wherein the gradient of the sidewalk 1 is 2%, and the connecting pipe can be made of PVC.

As shown in fig. 2, in practice, rainwater or water accumulation or the like collected in the gully 7 may be collected into the main rainwater pipe via a pipe.

Therefore, the embodiment of the application provides a novel rainwater drainage mode, combines the mode of collecting and storing underground water in highway projects, and effectively improves drainage efficiency by arranging the tubular seepage ditch at the boundary side of the green belt and the sidewalk, namely designing a rainwater collecting and draining assembly at the green belt side and combining the inclined sidewalk.

As shown in fig. 2, as a preferable mode of the embodiment of the present application, if the number of the connection pipes 5 is plural, the plural connection pipes 5 are distributed at intervals along the direction of the flexible water permeable pipe 3. In this embodiment, the pavement 1 is generally longer, and the single connecting pipe 5 does not necessarily meet the actual drainage requirement, so that the interval between the connecting pipes 5 can be set according to the actual requirement, and the multiple connecting pipes 5 drain water in parallel, so as to improve the drainage efficiency.

As shown in fig. 3, in one embodiment, the outer side of the end of the connection pipe 5 near the gully 7 is provided with a rough layer 10. The connecting pipe 5 extends into the inlet 7 and is fixedly connected with the inlet 7 through a cement mortar layer 9 sleeved on the outer wall of the connecting pipe 5. Wherein, the part of connecting pipe 5 and inlet for stom water 7 is connected can carry out the superficial coarse speech treatment, and then is formed with rough layer 10 in the one end outside that connecting pipe 5 is close to inlet for stom water 7 to adopt cement mortar to carry out leveling and obtain cement mortar layer 9.

In another embodiment, as shown in fig. 4, the diameter of the soft water permeable tube 3 is the same as that of the connection tube 5, the tube diameter of the soft water permeable tube 3 is 200mm, and the soft water permeable tube 3 communicates with the connection tube 5 through the three-way pipe fitting 8. In this embodiment, the flexible water permeable pipe 3 and the connecting pipe 5 are drain pipes, and the pipe diameters of the drain pipes can be referred to the pipe diameters between the rain water inlet 7 and the rain water main pipe, for example, the pipe diameters of 200mm are adopted. Rainwater flows longitudinally in the soft water permeable pipe 3, a three-way pipe fitting 8 can be arranged on the soft water permeable pipe 3, a transverse outlet is formed, the outlet is communicated with the connecting pipe 5, then the rainwater can be discharged to the rainwater inlet 7, and finally the rainwater is discharged into a road rainwater system through the rainwater inlet 7.

As shown in fig. 1, the rainwater collecting and discharging assembly further comprises a separation layer 6 arranged below the crushed stone reverse filtering layer 4, wherein the separation layer 6 is made of waterproof geotextile materials, and impermeable geotextile materials can be selected. Wherein, wrap up prevention of seepage geotechnical cloth in the side and the bottom of rubble reverse filtering layer 4, can prevent that rainwater from penetrating into the soil of greenbelt side in a large number when the rainfall is too big.

As shown in fig. 5, the standing stone 2 includes an upper portion 21 and a lower portion 22, each lower portion 22 is connected first in sequence, and two adjacent upper portions 21 are spaced apart and opposed to form an opening 20. The lower portions 22 are buried in the ground between the sidewalk 1 and the green belt, the upper portions 21 extend out of the ground, and the openings 20 formed between the adjacent two upper portions 21 allow rainwater on the sidewalk 1 to enter the green belt side through the openings.

Therefore, the rainwater collecting and discharging system provided by the embodiment of the application can reduce the runoff time of rainwater on the pavement surface layer, improve the drainage efficiency, is not influenced by the water permeability efficiency of the pavement structure layer, can also reduce the pavement ponding area during the raining period, further improve the pedestrian passing efficiency during the raining period, can also reduce the occurrence rate of diseases such as loosening and pumping of the pavement surface plate, and can prolong the maintenance period.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.

Claims (7)

1. The rainwater collecting and discharging system for the surface of the greenbelt side pavement is characterized by comprising a sidewalk (1) which is inclined transversely and a rainwater collecting and discharging assembly arranged below the side of the greenbelt, wherein the rainwater collecting and discharging assembly comprises a standing rim stone (2) connected with the short side of the sidewalk (1), the standing rim stone (2) is provided with an opening (20), soft water permeable pipes (3) arranged below the standing rim stone (2), the soft water permeable pipes (3) are distributed along the direction of the sidewalk (1) and are configured to receive rainwater from the surface of the sidewalk (1) through the opening of the standing rim stone (2), a crushed stone anti-filtering layer (4) arranged below the standing rim stone (2), the crushed stone anti-filtering layer (4) is coated on the outer side of the soft water permeable pipes (3), and at least one connecting pipe (5) which is partially penetrated in the crushed stone anti-filtering layer (4) is arranged, and the connecting pipe (5) is communicated with the soft water permeable pipes (3) and the rainwater inlet (7) beside the motor vehicle.

2. The greenbelt-side pavement surface rainwater collecting and discharging system according to claim 1, wherein if the number of the connecting pipes (5) is plural, the plurality of connecting pipes (5) are distributed at intervals along the direction of the soft water permeable pipe (3).

3. The system for collecting and discharging the rainwater on the surface of the greenbelt side pavement according to claim 1, wherein a rough layer (10) is arranged on the outer side of one end of the connecting pipe (5) close to the rainwater inlet (7).

4. The system for collecting and discharging the rainwater on the surface of the greenbelt side pavement according to claim 1, wherein the connecting pipe (5) stretches into the rainwater inlet (7) and is fixedly connected with the rainwater inlet (7) through a cement mortar layer (9) sleeved on the outer wall of the connecting pipe (5).

5. The greenbelt-side pavement surface rainwater collection and drainage system according to claim 1, characterized in that the rainwater collection and drainage assembly further comprises a barrier layer (6) arranged below the crushed stone reverse filter layer (4).

6. The greenbelt-side pavement surface rain water collecting and draining system according to claim 5, characterized in that the barrier layer (6) is made of a water-impermeable geotextile material.

7. The greenbelt-side pavement surface rainwater collection and drainage system according to claim 1, characterized in that the soft water permeable pipe (3) is communicated with the connecting pipe (5) through a three-way pipe fitting (8).