CN114016350A

CN114016350A - Sponge structure for longitudinal rainwater drainage of urban road

Info

Publication number: CN114016350A
Application number: CN202111109484.XA
Authority: CN
Inventors: 李万华; 闫红民
Original assignee: Jiangsu Fangyang Construction Engineering Management Co ltd
Current assignee: Jiangsu Fangyang Construction Engineering Management Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-02-08

Abstract

The invention provides a sponge structure for longitudinal rainwater drainage of urban roads, and relates to the technical field of rainwater drainage. A sponge structure for longitudinal rainwater drainage of urban roads comprises a water collecting well arranged on a road and a road rainwater branch pipe penetrating through the water collecting well; the water-permeable concrete stone crusher also comprises a water-leakage layer, a water-permeable concrete layer and a crushed stone layer which are sequentially connected from top to bottom, wherein the crushed stone layer is provided with a drain pipe penetrating through the crushed stone layer, and the side wall of the drain pipe is provided with a plurality of water inlet holes; the water drainage pipe is communicated with the water collecting well. By adopting the invention, the accumulated water on the road surface can be quickly discharged, the problem of accumulated water on the road surface in rainy season is solved, and an effective solution is provided for the problem of accumulated water locally sinking on the outer side of the road.

Description

Sponge structure for longitudinal rainwater drainage of urban road

Technical Field

The invention relates to the technical field of rainwater seepage and drainage, in particular to a sponge structure for longitudinal rainwater seepage and drainage of urban roads.

Background

The sponge city material is substantially applied, has the characteristics of excellent water seepage, compression resistance, wear resistance, skid resistance, environmental protection, attractive and colorful appearance, comfort, easy maintenance, sound absorption, noise reduction and the like, becomes a breathable town landscape pavement, effectively relieves the urban heat island effect, and ensures that the urban pavement does not generate heat any more. Sponge city construction should follow ecological priority principle such as, combine together natural way and artificial measures, under the prerequisite of guaranteeing urban drainage waterlogging prevention safety, furthest realizes that rainwater stores up in the urban area, permeates and purifies, promotes the utilization of rainwater resource and ecological environment protection. The construction of the sponge city is not a way of putting down the weight to replace the traditional drainage system, but a way of reducing the burden and supplementing the traditional drainage system, and the self effect of the city is exerted to the greatest extent. In the sponge city construction process, the systematicness of natural rainfall, surface water and underground water should be established comprehensively, various links of water recycling such as water supply and drainage are coordinated, and the complexity and the long-term property of the links are considered.

At present, most of urban roads are solid and waterproof, a water collecting port is arranged at about 40m intervals, road surface water is discharged to a main rainwater pipeline through a rainwater branch pipe in the water collecting port, and the functions of seepage, stagnation, storage and return of sponge are avoided. When the local part of the road has settlement, the water in the road area is easy to be caused in rainy season, and particularly, if the settlement exists between the water collecting ports, the accumulated water cannot be drained and is difficult to be pumped and drained, so that the service life of the road and the traffic safety are influenced.

Disclosure of Invention

The invention aims to provide a sponge structure for longitudinal rainwater seepage and drainage of urban roads, which can quickly drain accumulated water on the road surface, solve the problem of accumulated water on the road surface in rainy seasons and provide an effective solution for the problem of accumulated water locally sinking on the outer side of the road.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a sponge structure for longitudinally draining rainwater on an urban road, which comprises a water collecting well arranged on the road and a road rainwater branch pipe penetrating through the water collecting well; the water-permeable concrete stone crusher also comprises a water-leakage layer, a water-permeable concrete layer and a crushed stone layer which are sequentially connected from top to bottom, wherein the crushed stone layer is provided with a drain pipe penetrating through the crushed stone layer, and the side wall of the drain pipe is provided with a plurality of water inlet holes; the water discharge pipe is communicated with the water collecting well.

Further, in some embodiments of the present invention, the water leaking layer is a water leaking flat stone or a water leaking grate.

Further, in some embodiments of the present invention, the crushed stone layer is provided with trench walls on both sides, and the top of the trench walls is provided with a concrete capping layer.

Further, in some embodiments of the present invention, a vertical stone is disposed on one side of the water leakage layer, and a concrete backrest is disposed on the concrete ballast layer; the bottom of the vertical stone is embedded into the concrete backrest.

Further, in some embodiments of the present invention, the outer sidewall of the drain pipe is wrapped with the first filter cotton.

Further, in some embodiments of the present invention, the outer sidewall of the first filter cotton is wrapped with a fixing net.

Further, in some embodiments of the present invention, a concrete trench bottom layer is disposed below the crushed stone layer.

Further, in some embodiments of the present invention, the drain pipe is provided with first rain grates at both ends thereof.

Further, in some embodiments of the present invention, a second filter cotton is disposed between the first rain grate and an end of the drain pipe.

Further, in some embodiments of the present invention, a second rain water grate is provided at one end of the water leakage layer.

Compared with the prior art, the embodiment of the invention at least has the following advantages or beneficial effects:

the embodiment of the invention provides a sponge structure for longitudinally draining rainwater on an urban road, which comprises a water collecting well arranged on the road and a road rainwater branch pipe penetrating through the water collecting well; the water-permeable concrete stone crusher also comprises a water-leakage layer, a water-permeable concrete layer and a crushed stone layer which are sequentially connected from top to bottom, wherein the crushed stone layer is provided with a drain pipe penetrating through the crushed stone layer, and the side wall of the drain pipe is provided with a plurality of water inlet holes; the water discharge pipe is communicated with the water collecting well.

During practical use, the sponge structure for longitudinal rainwater seepage and drainage of urban roads can be installed below the road surface, a plurality of water collection wells can be arranged below the road surface, the water collection wells are communicated through road rainwater branch pipes, and the end parts of the drain pipes are communicated with the water collection wells.

Rainwater on the road surface flows into the water leakage layer, the rainwater flows into the gravel layer after passing through the water leakage layer and the permeable concrete layer, and the rainwater can flow to the position of the drain pipe from the hollow space of the gravel layer due to a plurality of gaps among the gravels in the gravel layer; because the lateral wall of drain pipe is equipped with a plurality of inlet openings, the water that flows to the drain pipe position this moment can be followed a plurality of inlet openings and got into in the drain pipe and discharged in the catch basin through the drain pipe, can discharge surface ponding fast, solves the surface ponding problem in rainy season, provides effectual solution for the local ponding problem that sinks in the road outside. And water leakage layer and gravel layer's setting, its structural strength is high, does not influence the life of road and influences driving safety, the facilitate promotion. The permeable concrete layer has firm structure and can not be rusted, and is convenient for installing and supporting the ground and the water leakage layer. And the rainwater can pass through pervious concrete layer, the flow of the rainwater of being convenient for.

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 some embodiments 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 from the drawings without inventive effort.

FIG. 1 is a longitudinal sectional view of a sponge structure for longitudinal rainwater drainage on urban roads, provided by an embodiment of the invention;

FIG. 2 is a transverse sectional view of a sponge structure for longitudinal rainwater drainage on urban roads, provided by an embodiment of the invention;

fig. 3 is a sectional view of a drain pipe according to an embodiment of the present invention.

Icon: 1-water leakage layer; 2-a crushed stone layer; 3, a drain pipe; 4-water inlet holes; 5-a pervious concrete layer; 6-trench wall; 7-first filter cotton; 8-fixing the net; 9-concrete ditch bottom layer; 10-concrete topping; 11-a first rain grate; 12-second filter cotton; 13-a second rain grate; 14-a water collecting well; 15-road rainwater branch pipe; 16-lithotripterygium wilfordii; 17-concrete back.

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 any inventive step, are within the 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 embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or vertical, but may be slightly inclined. For example, "horizontal" merely means that its orientation is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 to 3, fig. 1 is a longitudinal sectional view of a sponge structure for rainwater longitudinal infiltration and drainage on an urban road according to an embodiment of the present invention; FIG. 2 is a transverse sectional view of a sponge structure for rainwater longitudinal seepage and drainage on urban roads, provided by an embodiment of the invention; fig. 3 is a sectional view of a drain pipe 3 according to an embodiment of the present invention.

The embodiment provides a sponge structure for rainwater longitudinal seepage and drainage on urban roads, which comprises a water collection well 14 installed on a road and a road rainwater branch pipe 15 penetrating through the water collection well 14; the water-permeable concrete stone crusher also comprises a water leakage layer 1, a water-permeable concrete layer 5 and a crushed stone layer 2 which are sequentially connected from top to bottom, wherein the crushed stone layer 2 is provided with a drain pipe 3 penetrating through the crushed stone layer 2, and the side wall of the drain pipe 3 is provided with a plurality of water inlet holes 4; the drain pipe 3 is communicated with the water collecting well 14.

In practical use, the sponge structure for longitudinally draining rainwater on urban roads can be arranged under the road surface, a plurality of water collecting wells 14 can be arranged under the road surface, the water collecting wells 14 are communicated with each other through road rainwater branch pipes 15, and the end parts of the drain pipes 3 are communicated with the water collecting wells 14.

Rainwater on the road surface flows into the water leakage layer 1, flows into the gravel layer 2 after passing through the water leakage layer 1 and the permeable concrete layer 5, and can flow to the position of the drain pipe 3 from the gap of the gravel layer 2 because a plurality of gaps exist between the gravels in the gravel layer 2; because the lateral wall of drain pipe 3 is equipped with a plurality of inlet openings 4, the water that flows to drain pipe 3 position this moment can be followed a plurality of inlet openings 4 and got into in drain pipe 3 and flow into water-collecting well 14 through drain pipe 3 and drain away, can discharge road surface ponding fast, solves road surface rainy season ponding problem, provides effectual solution for the local ponding problem that sinks in the road outside. And the layer 1 and the gravel layer 2 that leak, its structural strength is high, does not influence the life of road and influences driving safety, facilitate promotion.

Pervious concrete is also called porous concrete, sand-free concrete and pervious terrace. The porous lightweight concrete is prepared by mixing aggregate, cement, reinforcing agent and water, and does not contain fine aggregate. The pervious concrete is a honeycomb structure with uniformly distributed holes formed by coating a thin layer of cement slurry on the surface of coarse aggregate and bonding the thin layer of cement slurry, so that the pervious concrete has the characteristics of air permeability, water permeability and light weight. Pervious concrete is a paving material. The paving material can make rainwater flow into the ground, effectively replenish underground water, relieve some urban environmental problems such as rapid decline of urban underground water level and the like, effectively eliminate harm of oil compounds on the ground and the like to environmental pollution, simultaneously protect the underground water, maintain ecological balance and relieve urban heat island effect. It is beneficial to the benign development of human living environment, urban rainwater management, water pollution prevention and treatment and the like, and has special significance.

The pervious concrete meets the strength requirement and simultaneously needs to keep a certain through hole to meet the requirement of water permeability, so that the aim of ensuring the strength and the porosity is fulfilled by matching ratio design, a preparation process and additives besides selecting proper raw materials during preparation. The pervious concrete consists of aggregate, cement, water and the like, wherein single-particle-grade or discontinuous-particle-grade coarse aggregate is mostly adopted as a framework, and the using amount of fine aggregate is generally controlled within 20 percent of the total aggregate; the cement can be selected from Portland cement, ordinary Portland cement and slag Portland cement; the admixture can be selected from silica fume, fly ash, slag micropowder and the like. When feeding materials, firstly adding cement, admixture and coarse aggregate, then adding half of the water amount, and stirring for 30 s; then adding additives (additives, pigments and the like) and stirring for 60 s; finally, adding the residual water, stirring for 120s and discharging.

And during construction, the construction of the pervious concrete mainly comprises the working procedures of paving, forming, surface treatment, seam jointing treatment and the like. The paving can be carried out by adopting a mechanical or manual method; the forming can be carried out by adopting a flat vibrator, a vibration leveling roller, a manual push-pull roller, a vibration leveling beam and the like; the surface treatment is mainly to ensure that the surface appearance is improved, and the surface of the formed pervious concrete is trimmed or cleaned; the arrangement of the joints of the pervious concrete pavement is basically the same as that of common concrete, and the contraction joints are arranged at equal intervals, and the distance between the contraction joints is not more than 6 m. The pervious concrete layer 5 is firm in structure and cannot be rusted, and the ground and the water leakage layer 1 are convenient to install and support. And the rainwater can pass through pervious concrete layer 5, so that the rainwater can flow conveniently.

Optionally, the gravel layer 2 of the present embodiment is formed by filling crushed stones with large particle size. Alternatively, the drainage pipe 3 of the present embodiment may be made of PE pipe, HDPE plastic winding pipe, PVC pipe, or the like. The water outlet of the drainage pipe 3 is higher than the top of the road rainwater branch pipe 15 in the water collecting well 14.

In some embodiments of the present invention, as shown in fig. 1-3, the water leakage layer 1 is a water leakage flat stone or a water leakage grate.

The water leakage layer 1 is the water leakage flat stone or the water leakage grate, so that the water leakage flat stone or the water leakage grate has high structural strength and long service life.

As shown in fig. 1 to 3, in some embodiments of the present invention, the crushed stone layer 2 is provided with trench walls 6 on both sides thereof, and the top of the trench walls 6 is provided with a concrete coping layer 10.

According to the invention, the groove walls 6 are arranged on the two sides of the crushed stone layer 2, so that the crushed stone layer 2 can be supported and fixed through the groove walls 6, and the crushed stone layer 2 can keep certain strength and is not loose. Alternatively, the trench wall 6 of the present embodiment is constructed using bricks. According to the invention, the concrete coping layer 10 is arranged at the top of the trench wall 6, so that the overall structural strength of the trench wall 6 and the gravel layer 2 is improved, and the service life of the sponge structure for longitudinal rainwater drainage of urban roads is prolonged.

As shown in fig. 1 to 3, in some embodiments of the present invention, a vertical stone 16 is disposed on one side of the water leakage layer 1, and a concrete back 17 is disposed on the concrete ballast layer 10; the bottom of the vertical stone 16 is embedded in the concrete backrest 17.

One side of the invention passing through the water leakage layer 1 is provided with a vertical stone 16, and the concrete coping layer 10 is provided with a concrete backrest 17; the bottom of the vertical stone 16 is embedded into the concrete backrest 17, so that rainwater can be shielded by the vertical stone 16 and can flow into the water leakage layer 1 conveniently. The concrete back 17 is provided to facilitate mounting and fixing of the vertical stones 16.

As shown in fig. 1 to 3, in some embodiments of the present invention, the outer sidewall of the drainage pipe 3 is wrapped with a first filter cotton 7.

Since the rainwater generally contains various impurities such as mud, the first filter cotton 7 wraps the outer side wall of the drain pipe 3, so that the impurities such as mud can be filtered through the first filter cotton 7, the impurities are left outside the first filter cotton 7, the various impurities such as mud are prevented from flowing into the drain pipe 3 from the water inlet hole 4 of the drain pipe 3, the drain pipe 3 is prevented from being blocked, and drainage is facilitated.

Optionally, the first filter cotton 7 of the present embodiment may adopt a permeable geotextile. Geotextiles, also known as geotextiles, are water permeable geosynthetic materials made of synthetic fibers by needling or weaving. The geotextile is one of new material geosynthetic materials, and the finished product is in a cloth shape, generally has a width of 4-6 meters and a length of 50-100 meters. The geotextile is divided into woven geotextile and non-woven filament geotextile.

As shown in fig. 1 to 3, in some embodiments of the present invention, the outer sidewall of the first filter cotton 7 is wrapped with a fixing net 8.

According to the invention, the outer side wall of the first filter cotton 7 is wrapped by the fixing net 8, so that the first filter cotton 7 is conveniently fixed by the fixing net 8 and firmly fixed on the outer side wall of the drain pipe 3, and the first filter cotton is prevented from falling. Optionally, the fixing net 8 of this embodiment is a steel wire net.

As shown in fig. 1 to 3, in some embodiments of the present invention, a concrete trench bottom layer 9 is disposed under the crushed stone layer 2.

Because the soil is generally arranged under the ground, the hardness is small, the soil is soft, and the sponge structure for longitudinal rainwater drainage of urban roads is not beneficial to supporting.

As shown in fig. 1 to 3, in some embodiments of the present invention, the drain pipe 3 is provided at both ends thereof with first rain grates 11.

According to the invention, the two ends of the drain pipe 3 are provided with the first rainwater grates 11, so that the two ends of the drain pipe 3 are conveniently separated and supported by the first rainwater grates 11, and external impurities and the like are prevented from sliding to the two ends of the drain pipe 3 to influence the discharge of water.

As shown in fig. 1 to 3, in some embodiments of the present invention, a second filter cloth 12 is disposed between the first rain grate 11 and the end of the drain pipe 3.

In the invention, the second filter cotton 12 is arranged between the first rainwater grate 11 and the end part of the drain pipe 3, so that impurities are filtered by the second filter cotton 12, the impurities between the water collecting well 14 and the drain pipe 3 are prevented from flowing mutually, for example, the impurities in the drain pipe 3 are prevented from flowing into the water collecting well 14, and the impurities in the water collecting well 14 can be prevented from flowing into the drain pipe 3 when the water in the water collecting well 14 is more. Optionally, the second filter cotton 12 of the present embodiment may use a permeable geotextile.

As shown in fig. 1 to 3, in some embodiments of the present invention, a second rain water grate 13 is provided at one end of the water leakage layer 1.

According to the invention, the second rainwater grate 13 is arranged at one end of the water leakage layer 1, and the second rainwater grate 13 can be arranged at the opening position of the water collecting well 14, so that when the rainwater is too large, the rainwater on the road surface can directly flow into the water collecting well 14 from the second rainwater grate 13, and the rainwater can be conveniently discharged.

In summary, the embodiment of the present invention provides a sponge structure for rainwater longitudinal drainage on urban roads, comprising a water collecting well 14 for installing on a road and a road rainwater branch pipe 15 penetrating through the water collecting well 14; the water-permeable concrete stone crusher also comprises a water leakage layer 1, a water-permeable concrete layer 5 and a crushed stone layer 2 which are sequentially connected from top to bottom, wherein the crushed stone layer 2 is provided with a drain pipe 3 penetrating through the crushed stone layer 2, and the side wall of the drain pipe 3 is provided with a plurality of water inlet holes 4; the drain pipe 3 is communicated with the water collecting well 14.

Rainwater on the road surface flows into the water leakage layer 1, flows into the gravel layer 2 after passing through the water leakage layer 1 and the permeable concrete layer 5, and can flow to the position of the drain pipe 3 from the gap of the gravel layer 2 because a plurality of gaps exist between the gravels in the gravel layer 2; because the lateral wall of drain pipe 3 is equipped with a plurality of inlet openings 4, the water that flows to drain pipe 3 position this moment can be followed a plurality of inlet openings 4 and got into in drain pipe 3 and flow into water-collecting well 14 through drain pipe 3 and drain away, can discharge road surface ponding fast, solves road surface rainy season ponding problem, provides effectual solution for the local ponding problem that sinks in the road outside. And the layer 1 and the gravel layer 2 that leak, its structural strength is high, does not influence the life of road and influences driving safety, facilitate promotion. The pervious concrete layer 5 is firm in structure, cannot be rusted, and is convenient to install and support the ground and the water leakage layer 1. And rainwater can pass through pervious concrete layer 5, be convenient for the flow of rainwater.

While the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Various modifications and alterations to this invention will become apparent 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 sponge structure for longitudinal rainwater drainage of urban roads comprises a water collecting well arranged on a road and a road rainwater branch pipe penetrating through the water collecting well; the method is characterized in that: the water-permeable concrete stone crusher also comprises a water-leakage layer, a water-permeable concrete layer and a crushed stone layer which are sequentially connected from top to bottom, wherein the crushed stone layer is provided with a drain pipe penetrating through the crushed stone layer, and the side wall of the drain pipe is provided with a plurality of water inlet holes; the drain pipe is communicated with the water collecting well.

2. The sponge structure for longitudinal rainwater drainage on urban roads according to claim 1, wherein: the water leakage layer is a water leakage flat stone or a water leakage grate.

3. The sponge structure for longitudinal rainwater drainage on urban roads according to claim 1, wherein: the both sides of metalling all are equipped with the ditch wall, the ditch wall top is equipped with concrete and presses the top layer.

4. The sponge structure for longitudinal rainwater drainage on urban roads according to claim 3, wherein: one side of the water leakage layer is provided with a vertical stone, and the concrete top pressing layer is provided with a concrete backrest; the bottom of the vertical stone is embedded into the concrete backrest.

5. The sponge structure for longitudinal rainwater drainage on urban roads according to claim 1, wherein: the lateral wall parcel of drain pipe has first filter pulp.

6. The sponge structure for longitudinal rainwater drainage on urban roads according to claim 5, wherein: the first outer side wall of the filter cotton is wrapped with a fixing net.

7. The sponge structure for longitudinal rainwater drainage on urban roads according to claim 1, wherein: and a concrete ditch bottom layer is arranged below the gravel layer.

8. The sponge structure for longitudinal rainwater drainage on urban roads according to claim 1, wherein: and two ends of the drain pipe are provided with first rainwater grates.

9. The sponge structure for longitudinal rainwater drainage on urban roads according to claim 8, wherein: and second filter cotton is arranged between the first rainwater grate and the end part of the drain pipe.

10. The sponge structure for longitudinal rainwater drainage on urban roads according to claim 1, wherein: one end of the water leakage layer is provided with a second rainwater grate.