CN109371777B

CN109371777B - Permeable pavement and permeable system

Info

Publication number: CN109371777B
Application number: CN201811472979.7A
Authority: CN
Inventors: 王元元; 郭诗言; 曹林涛
Original assignee: Hubei University of Arts and Science
Current assignee: Sichuan Dema Engineering Design Co ltd
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2021-05-11
Anticipated expiration: 2038-12-04
Also published as: CN109371777A

Abstract

The invention provides a permeable pavement and a permeable system, and relates to the technical field of road engineering. Permeable pavement is including cutting off structure, guarantor's water structure and drainage structures, guarantor's water structure sets up side by side with drainage structures, cuts off the structure and sets up between guarantor's water structure and drainage structures to separate the upside of guarantor's water structure and drainage structures's upside, the downside of guarantor's water structure is connected and is communicate with drainage structures's downside. The water retaining structure is used for storing rainwater and conveying redundant water to the drainage structure. The water drainage structure is used for receiving the water body output by the water retention structure and discharging the redundant water body. This permeable pavement can realize the storage to the rainwater under the prerequisite of guaranteeing stable in structure to prevent that the road surface from taking place to flood.

Description

Permeable pavement and permeable system

Technical Field

The invention relates to the technical field of road engineering, in particular to a permeable pavement and a permeable system.

Background

Along with the popularization of hardened pavement, the original natural ecological and hydrological characteristics of cities are changed, so that underground water resources cannot be timely and effectively supplemented to cause the settlement of the surface of the cities on the one hand; on the other hand, rainwater cannot seep downwards, which is not beneficial to drainage during rainfall.

In the prior art, the storage of rainwater and the stability of the roadbed can not be considered at the same time, or the rainwater erodes the roadbed to damage the road surface; or cannot play a role in rainwater storage.

Disclosure of Invention

An object of the present invention is to provide a permeable pavement, which can store rainwater and prevent a surface layer from overflowing on the premise of ensuring a stable structure.

The invention also aims to provide a water permeable system, which can store rainwater and discharge redundant rainfall into an urban drainage system to prevent urban waterlogging.

The technical problem to be solved by the invention is realized by adopting the following technical scheme:

the invention provides a permeable pavement, which comprises a partition structure, a water retention structure and a drainage structure, wherein the water retention structure and the drainage structure are arranged side by side, the partition structure is arranged between the water retention structure and the drainage structure and partitions the upper side of the water retention structure and the upper side of the drainage structure, and the lower side of the water retention structure is connected and communicated with the lower side of the drainage structure. The water retaining structure is used for storing rainwater and can convey redundant water to the drainage structure. The water drainage structure is used for receiving the water body output by the water retention structure and discharging redundant water body.

Furthermore, the water retention structure comprises a water permeable layer group, a bearing layer and a buffer layer, wherein the water permeable layer group, the bearing layer and the buffer layer are sequentially arranged in a layered manner along the extension direction of the partition structure, and the buffer layer is connected and communicated with the drainage structure.

Further, the permeable layer group includes first permeable layer and second permeable layer, first permeable layer water permeability is greater than the second permeable layer.

Further, drainage structures includes filter layer and filling layer, the side of filling layer with cut off the structure laminating, the one end of filling layer with guarantor's water structural connection and intercommunication, the terminal surface quilt of the other end of filling layer the filter layer covers.

Furthermore, one side of the filter layer close to the partition structure is higher than the other side.

Further, the highest point of the filter layer is lower than that of the water retention structure.

Further, drainage structures still includes water drainage tank, water drainage tank set up in drainage structures keeps away from one side of water retention structure, water drainage tank's notch with the lower edge of filter layer corresponds the setting.

Furthermore, the permeable pavement further comprises a waterproof layer, wherein the waterproof layer is lined at the bottom sides of the water retention structure and the drainage structure and wraps the outer side of the drainage structure.

Further, at least two drainage structures are respectively arranged on two sides of the water retention structure.

The invention also provides a water permeable system, which comprises an urban drainage system and the water permeable pavement, wherein the urban drainage system is communicated with the drainage structure.

The embodiment of the invention has the beneficial effects that:

the water permeable pavement provided by the invention separates the water retention structure from the drainage structure through the partition structure, stores water through the water retention structure during rainfall, vaporizes the water when the environment is dry, improves the humidity and the temperature of the environment, and is ecological and environment-friendly. Meanwhile, when the precipitation is too large, excessive water is separated out through the drainage structure, so that surface water accumulation is avoided, and the safety is improved.

The water permeable system provided by the invention adopts the water permeable pavement provided by the invention, the water retention structure and the drainage structure are separated by the partition structure, and the water retention structure stores water in rainfall so as to vaporize the water when the environment is dry, thereby improving the humidity and temperature of the environment and being ecological and environment-friendly. Meanwhile, when the precipitation is too large, excessive water is separated out through the drainage structure, so that the accumulated water on the road surface is avoided, and the driving safety is improved. In addition, redundant rainfall is discharged into an urban drainage system, so that urban waterlogging is prevented.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a water permeable system provided by the present invention.

Fig. 2 is a schematic structural diagram of the permeable pavement provided by the invention.

Fig. 3 is a schematic structural diagram of a partition structure provided by the present invention.

Fig. 4 is a schematic structural diagram of a water retention structure provided by the present invention.

Fig. 5 is a schematic structural view of a drainage structure provided by the present invention.

Icon: 100-permeable pavement; 110-a water retention structure; 111-a water permeable layer set; 1111-a first water permeable layer; 1112-a second water permeable layer; 112-a carrier layer; 113-a buffer layer; 120-a drainage structure; 121-a filler layer; 122-a filter layer; 123-a drainage groove; 130-a partition structure; 131-filling a partition layer; 132-a waterproof barrier layer; 140-a waterproof layer; 200-roadbed; 300-urban drainage system; 400-Water permeable System.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships where products of the present invention are conventionally placed in use, and are used only for convenience in describing the present invention and for simplification of description, and do not indicate or imply that the device or the element to which the present invention refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and "fourth," etc. are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise specified or limited more specifically, the terms "disposed" and "connected" are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, and features in the following embodiments may be combined with each other without conflict.

Fig. 1 is a schematic structural diagram of a water permeable system 400 provided by the present invention. Referring to fig. 1, the water permeable system 400 includes a city drainage system 300, a roadbed 200 and a water permeable pavement 100, wherein the roadbed 200 is disposed under the water permeable pavement 100 to bear the water permeable pavement 100, so as to ensure that the water permeable system 400 can be loaded with vehicles to pass through, and improve the durability of the water permeable system 400. The urban drainage system 300 is communicated with the permeable pavement 100, can bear redundant rainfall and prevent urban waterlogging.

Fig. 2 is a schematic structural diagram of a permeable pavement 100 provided by the present invention. Referring to fig. 1 and 2, the waterproof structure includes a waterproof layer 140, a partition structure 130, a water retention structure 110 and a drainage structure 120, the water retention structure 110 and the drainage structure 120 are arranged side by side along a horizontal direction, the partition structure 130 is arranged between the water retention structure 110 and the drainage structure 120 and partitions an upper side of the water retention structure 110 and an upper side of the drainage structure 120, and a lower side of the water retention structure 110 is connected and communicated with a corresponding lower side of the drainage structure 120. The waterproof layer 140 lines the lower sides of the water retention structure 110 and the drainage structure 120, and wraps the side of the drainage structure 120 away from the water retention structure 110. To store the water through water retention structure 110, and carry unnecessary water to drainage structure 120, and drainage structure 120 can receive the water of water retention structure 110 output, and discharge the water.

It should be noted that the water first flows through the water retention structure 110 and flows through the underside of the water retention structure 110 into the drainage structure 120. As the water level in the water retention structure 110 rises, the water level in the drainage structure 120 rises, and after the water level in the drainage structure 120 reaches a certain threshold, the excess water is drained through the drainage structure 120, so as to avoid the water level in the water retention structure 110 from being too high.

In the present embodiment, the uppermost end of the partition structure 130 is higher than the uppermost end of any one of the water retention structure 110 and the drainage structure 120, so as to prevent the water retention structure 110 and the drainage structure 120 from communicating across the upper edge of the partition structure 130.

Optionally, in this embodiment, at least two drainage structures 120 set up respectively in the both sides of guarantor's water structure 110 to drainage structures 120 through both sides are respectively to guarantor's water structure 110 carries out the drainage, thereby improve the holistic drainage efficiency of system, avoid the surface course to produce ponding, and then improve the security of driving a vehicle.

Optionally, in this embodiment, the waterproof layer 140 uses a dense-graded sand-type asphalt mixture to achieve the waterproof and permeable effects, and meanwhile, a certain structural strength is ensured to improve the durability of the structure.

It is understood that in other alternative embodiments, waterproof layer 140 may be made of waterproof roll material to achieve better waterproof effect.

Fig. 3 is a schematic structural diagram of the partition structure 130 according to the present invention. Referring to fig. 2 and 3, the partition structure 130 includes a waterproof partition layer 132 and a filling partition layer 131, and the waterproof partition layer 132 wraps the periphery of the filling partition layer 131 to waterproof and partition the water-retaining structure 110 and the drainage structure 120, so as to prevent water bodies on two sides of the water-retaining structure 110 and the drainage structure 120 from communicating with each other, thereby improving the water-retaining effect of the water-retaining structure 110.

It should be noted that the filling and blocking layer 131 is used to maintain the structural shape, so as to improve durability during use, improve the waterproof and blocking effects on the water retention structure 110 and the drainage structure 120, and improve the water retention effect of the water retention structure 110.

In this embodiment, the filling partition layer 131 is made of impermeable concrete, so as to reduce cost and improve structural strength, provide better structural support for the waterproof partition layer 132, and improve structural durability.

Fig. 4 is a schematic structural diagram of a water retention structure 110 provided by the present invention. Referring to fig. 2 and fig. 4, the water-retaining structure 110 includes a water-permeable layer group 111, a carrier layer 112 and a buffer layer 113, wherein the water-permeable layer group 111, the carrier layer 112 and the buffer layer 113 are sequentially arranged in a layer shape from top to bottom. The buffer layer 113 is connected and communicated with the drainage structure 120, and the permeable layer group 111 is used for bearing vehicles passing on the road surface.

Wherein, the layer group 111 that permeates water includes first layer 1111 and the second layer 1112 of permeating water, and first layer 1111 that permeates water sets up in second layer 1112 upside of permeating water to through setting up first layer 1111 and the second layer 1112 of permeating water control the rate of permeating water, provide better structural support to first layer 1111 simultaneously, avoid first layer 1111 to take place deformation when the bearing of permeating water.

It should be noted that, in this embodiment, first permeable layer 1111 water permeability is greater than second permeable layer 1112 to guarantee that the water can permeate second permeable layer 1112 through first permeable layer 1111 fast, in order to avoid the water to gather at first permeable layer 1111, cause surface of road surface ponding, influence driving safety.

Optionally, in this embodiment, first permeable layer 1111 and second permeable layer 1112 adopt the different bituminous material of permeable rate to guarantee good effect and structural strength of permeating water, and can take place certain deformation when weighing, avoid taking place structural fracture.

It is understood that in other alternative embodiments, different cement materials with different water permeability can be used for the first water permeable layer 1111 and the second water permeable layer 1112, so as to save the manufacturing cost.

Optionally, in this embodiment, the bearing layer 112 is made of pervious concrete, so as to provide structural support for the first pervious layer 1111 and the second pervious layer 1112 on the upper layer, and to ensure the structural strength of the pavement, and at the same time, allow moisture to permeate into the buffer layer 113 under the pervious concrete through the pervious concrete, so as to achieve the water retention effect.

It is understood that in other alternative embodiments, the bearing layer 112 may also be made of water permeable bricks or the like to provide structural support for the upper first water permeable layer 1111 and the upper second water permeable layer 1112, so as to ensure the structural strength of the pavement.

Optionally, in this embodiment, the buffer layer 113 is made of sand cushion, and provides buffer support for the bearing layer 112, the first permeable layer 1111 and the second permeable layer 1112, so as to avoid structural damage when bearing load, and the gap between the used sand plays a role of storing moisture.

Fig. 5 is a schematic structural diagram of the drainage structure 120 provided in the present invention. Referring to fig. 2 and 5, the drainage structure 120 includes drainage grooves 123, a filter layer 122, and a filling layer 121. The filtration layer 122 and the filler layer 121 are arranged in layers in the order from top to bottom, the side surface of the filler layer 121 is attached to the partition structure 130, the lower side of the filler layer 121 is connected and communicated with the water retention structure 110, and the upper side of the filler layer 121 is covered with the filtration layer 122. So as to drain water through the filtering layer 122, and prevent dust, impurities and the like in the environment from blocking the filling layer 121 and affecting the drainage effect through the filtering layer 122. The drain groove 123 is provided at one side of the packing layer 121 to guide water drained through the filtering layer 122 to the outside.

Wherein, the peak of filter layer 122 is less than the minimum of first permeable layer 1111 to guarantee when the drainage through filter layer 122, can not have ponding in first permeable layer 1111, thereby avoid producing the condition of surface ponding, improved the security of driving a vehicle.

In this embodiment, one side of the filtering layer 122 close to the waterproof blocking layer 132 is higher than the other side, the drainage groove 123 is disposed on one side of the drainage structure 120 away from the waterproof blocking layer 132, and the notch of the drainage groove 123 corresponds to the lower edge of the filtering layer 122. To guide the water body to flow into the drain groove 123 by the height difference and to discharge the excessive water through the drain groove 123.

Optionally, in this embodiment, the angle between the filtering layer 122 and the horizontal plane is 45 ° to achieve the balance between the drainage efficiency and the structural strength.

It is understood that in other alternative embodiments, the angle between the filtering layer 122 and the horizontal plane may be 30 ° to improve the drainage efficiency.

It is understood that in other alternative embodiments, the angle between the filtering layer 122 and the horizontal plane may be 60 ° to improve the structural strength of the filtering layer 122.

It should be noted that, in this embodiment, the filter layer 122 is wrapped with geotextile and laid on the gravel pack 121 to better prevent dust and mud from entering into the blocking gap and affecting the drainage of rainwater, and meanwhile, under the washing of precipitation, the surface impurities of the filter layer 122 can also be washed away.

It should be noted that, in this embodiment, the drainage channel 123 is communicated with the municipal water network to drain excess water into the municipal water network, so as to realize water circulation, save energy and protect environment.

The working principle of the water permeable system 400 provided by the embodiment is as follows:

when the water body falls, the water body rapidly permeates into the second permeable layer 1112 through the first permeable layer 1111, permeates into the buffer layer 113 through the bearing layer 112, and is reserved in the buffer layer 113 and the bearing layer 112, so that the effect of storing water is achieved. When the water content in the buffer layer 113 is excessive, the buffer layer 113 discharges the excessive water content into the filling layer 121 through the connection portion with the filling layer 121, and as the water level in the buffer layer 113, the carrier layer 112, and the second water permeable layer 1112 gradually rises, the water level in the filling layer 121 also gradually rises until it exceeds the lower edge of the filtering layer 122. When the water level exceeds the lower edge of the filtering layer 122, the water is discharged into the drainage groove 123 through the filtering layer 122 to avoid excessive surface water accumulation. When the environment is lack of water, the moisture in the buffer layer 113 and the bearing layer 112 is vaporized to enter the environment, so that the humidity is improved, the temperature is reduced, and the environment is protected.

In summary, the water permeable pavement 100 provided by the present invention separates the water retention structure 110 from the drainage structure 120 by the partition structure 130, and stores water by the water retention structure 110 during rainfall, so as to vaporize the water when the environment is dry, thereby improving the humidity and temperature of the environment, and being ecological and environment-friendly. Meanwhile, when the precipitation amount is too large, excessive water is separated out through the drainage structure 120 to avoid surface water accumulation, and the safety is improved.

The water permeable system 400 provided by the invention adopts the water permeable pavement 100 provided by the invention, the water retention structure 110 and the drainage structure 120 are separated by the partition structure 130, and the water retention structure 110 stores water during rainfall so as to vaporize the water when the environment is dry, thereby improving the humidity and temperature of the environment and being ecological and environment-friendly. Meanwhile, when the precipitation is too large, the excessive water is separated out through the drainage structure 120, so that the accumulated water on the road surface is avoided, and the driving safety is improved. In addition, the roadbed 200 supports the partition structure 130, the water retention structure 110 and the drainage structure 120, thereby improving structural stability.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A permeable pavement is characterized by comprising a partition structure, a water retention structure and a drainage structure, wherein the water retention structure and the drainage structure are arranged side by side, the partition structure is arranged between the water retention structure and the drainage structure and partitions the upper side of the water retention structure and the upper side of the drainage structure, and the lower side of the water retention structure is connected and communicated with the lower side of the drainage structure;

the water retention structure is used for storing rainwater and conveying redundant water to the drainage structure;

the water drainage structure is used for receiving the water body output by the water retention structure and draining redundant water body;

the drainage structure comprises a filter layer and a filling layer, the side surface of the filling layer is attached to the partition structure, one end of the filling layer is connected and communicated with the water retention structure, and the end surface of the other end of the filling layer is covered by the filter layer;

the drainage structure also comprises a drainage groove, the drainage groove is arranged on one side of the drainage structure, which is far away from the water retention structure, and the notch of the drainage groove is arranged corresponding to the lower edge of the filtering layer;

the permeable pavement further comprises a waterproof layer, wherein the waterproof layer is lined at the bottom sides of the water retention structure and the drainage structure and wraps the outer side of the drainage structure.

2. The permeable pavement of claim 1, wherein the water retention structure comprises a permeable layer group, a bearing layer and a buffer layer, the permeable layer group, the bearing layer and the buffer layer are arranged in layers in sequence along the extending direction of the partition structure, and the buffer layer is connected and communicated with the drainage structure.

3. The permeable pavement of claim 2, wherein the permeable layer set includes a first permeable layer and a second permeable layer, the first permeable layer having a greater permeability than the second permeable layer.

4. The permeable pavement of claim 1, wherein the filter layer is higher on one side than on the other side adjacent to the partition structure.

5. The permeable pavement of claim 4, wherein the highest point of the filter layer is lower than the highest point of the water retention structure.

6. The permeable pavement of claim 1, wherein at least two drainage structures are disposed on either side of the water retention structure.

7. A water permeable system comprising a municipal drainage system and a water permeable pavement according to any one of claims 1 to 6, the municipal drainage system being in communication with the drainage structure.