CN210238201U - Cement concrete pavement structure layer drainage system - Google Patents

Abstract

The utility model relates to a cement concrete pavement structure drainage system, which comprises an original surface layer and a base layer, wherein the original surface layer is laid above the base layer, a plurality of drainage ditches are arranged between the original surface layer and the base layer, and the upper end surfaces of the drainage ditches are flush with the upper surface of the base layer; the both ends symmetry in escape canal sets up the both sides at the basic unit, just the escape canal is in the horizontal edge of basic unit is equipped with the outlet, and the escape canal sets up for the slope at the bottom of V type and its ditch, the discharge of the ponding of being convenient for. The utility model discloses can reach the effect of the ponding of discharging between former surface course of road and the basic unit.

Description

Cement concrete pavement structure layer drainage system

Technical Field

The utility model belongs to the technical field of the road engineering technique and specifically relates to a cement concrete pavement structure drainage system is related to.

Background

At present, many roads in China use cement concrete pavements, and in the process of road engineering construction, when the pavements are built, in order to achieve the purposes of saving cost and guaranteeing the pressure bearing of the pavements, the pavements are generally arranged into a multilayer structure, and different layers are arranged into different materials according to different pressure bearing capacities of different layers. The road surface is generally divided into an original surface course, a base course and a cushion course, but the cushion course is not necessary and is arranged only when the soil foundation condition is poor. Because of the layered structure of the pavement, the original surface layer is usually made of concrete material, the material has certain water permeability, when raining, snowing or water flows into the pavement, accumulated water is easy to permeate between the original surface layer and the base layer, and the service life of the cement concrete pavement is greatly shortened due to the accumulated water.

The existing road construction is generally constructed layer by layer according to the layered structure of the road surface, the arrangement for removing the accumulated water between the original surface layer and the base layer cannot be arranged in the construction process, and the method of repairing and maintaining the road again after the road is constructed is generally adopted.

Above-mentioned technical scheme has following defect, does not have drainage system between former surface course and basic unit, so general road surface can often produce many road surface problems because ponding between former surface course and the basic unit can not discharge when using, often need destroy the road surface or can not be better when the road surface maintains again the maintenance the laminating road surface situation originally be go on repair, and lead to the emergence of the circumstances such as unevenness of road surface.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cement concrete road surface structural layer drainage system, it has the effect of the ponding between former surface course of discharge road and the basic unit.

The above object of the present invention can be achieved by the following technical solutions:

a cement concrete pavement structure drainage system comprises an original surface layer and a base layer, wherein the original surface layer is laid above the base layer, a plurality of drainage ditches are arranged between the original surface layer and the base layer, and the upper end surfaces of the drainage ditches are flush with the upper surface of the base layer; the both ends symmetry in escape canal sets up the both sides at the basic unit, just the escape canal is in the horizontal edge of basic unit is equipped with the outlet.

Through above-mentioned technical scheme, the ponding between former surface course of process various modes infiltration and basic unit can be discharged through the outlet through setting up the escape canal between former surface course and basic unit, can reach the effect of effectively reducing the ponding between former surface course and the basic unit.

The novel further setting of this experiment is: the ditch bottom of escape canal is towards the mode slope setting of both ends of basic unit height both sides height in the middle of.

Through above-mentioned technical scheme, ponding is discharged by the escape canal under the effect of gravity, reaches and accelerates the drainage, prevents that ponding from being detained the effect in the escape canal.

The novel further setting of this experiment is: the cross section of the drainage ditch is V-shaped.

Through above-mentioned technical scheme, the V-arrangement can increase the area of the escape canal of drainage ponding to a certain extent, makes more ponding discharge, and is less to the influence on road surface.

The novel further setting of this experiment is: the two sides of the original surface layer are provided with drain pipes; and water inlets are arranged at positions, corresponding to all the water outlets, of one side of the water discharge pipe, connecting pipes are arranged on the water inlets, and the water inlets are connected with the water outlets through the connecting pipes.

Through above-mentioned technical scheme, when the infiltration volume is great, soil is hardly in time with the whole absorption of water, often can cause the unable normal discharge of ponding, and the drain pipe can store the ponding of discharge, gives the place of ponding a buffering, makes ponding normally discharge.

The novel further setting of this experiment is: the water outlet is provided with a filter screen.

Through above-mentioned technical scheme, can carry some sand and stones when ponding is got rid of, these sand and stones block up the hole that leaks easily, make the mouth of a river that leaks normally leak, and the filter screen can prevent ponding from discharging sand and stone.

The novel further setting of this experiment is: the drain pipe is cylindrical body, evenly is provided with the hole that leaks on the semi-cylindrical face of its bottom.

Through above-mentioned technical scheme, when having ponding in the drain pipe, during the mouth infiltration soil can be followed to the ponding for the drain pipe is discharged ponding.

The novel further setting of this experiment is: the horizontal position of the drain pipe is lower than the water outlet, and the connecting pipe is obliquely connected with the water outlet and the water inlet.

Through above-mentioned technical scheme, when ponding flowed into the drain pipe from the connecting pipe, because the position of drain pipe is less than the outlet, can accelerate ponding and flow into the drain pipe under the effect of gravity.

The novel further setting of this experiment is: the water inlet is provided with a back-filling prevention device which is a sealing cover; the sealing cover is hinged with the water inlet, and the shape and the size of the sealing cover are matched with those of the water inlet.

Through above-mentioned technical scheme, when the volume of ponding is great, the water level in the drain pipe risees gradually, and ponding has pressure to the lateral wall, because the pressure of ponding to the lateral wall is with the closing cap pressfitting on the water inlet, can prevent that ponding from flowing backward into in the drain.

To sum up, the utility model discloses a beneficial technological effect does:

1. a drainage ditch is arranged between the original surface layer and the base layer, so that accumulated water between the original surface layer and the base layer can be drained.

2. The drain pipe is arranged on the outer side of the drain outlet, so that when accumulated water in the drain outlet is too much, the accumulated water is prevented from being retained due to slow drainage speed.

3. The water inlet is provided with the anti-backflow device, and when accumulated water in the drain pipe is excessive, the accumulated water can be effectively prevented from flowing back into the drain pipe.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a plan view of a section of a pavement base.

Fig. 3 is a schematic structural view of the filter screen.

Fig. 4 is a schematic structural view of the backflow preventing device.

In the figure, 1, original surface layer; 2. a base layer; 21. a drainage ditch; 22. a water outlet; 23. a filter screen; 3. a drain pipe; 31. a water leakage hole; 32. a water inlet; 4. a connecting pipe; 5. and (7) sealing the cover.

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 cement concrete road surface structure drainage system lays in the basic unit 2 of road bed and lays in the former surface course 1 of basic unit 2, and the material of former surface course 1 is the cement concrete, and the material of basic unit 2 can be the mixture of concrete and gravel and sand. The drainage pipes 3 are arranged on the two transverse sides of the base layer 2, and the drainage holes 31 which are uniformly distributed are arranged at the bottom of the drainage pipes 3 facing the soil base.

Referring to fig. 1 and 2, a drainage ditch 21 is formed on the upper surface of the base layer 2, the drainage ditch 21 is V-shaped, and the middle of the drainage ditch 21 is high and the two sides are low. The drainage ditch 21 is provided with drainage ports 22 at both sides of the base layer 2, the drainage ports 22 are connected with connecting pipes 4, the drainage ports 22 are communicated with the connecting pipes 4, water in the drainage ditch 21 can enter the connecting pipes 4, one end of the connecting pipes 4 opposite to the drainage ditch 21 is communicated with a drainage pipe 3, and the drainage pipe 3 is provided with a water inlet 32 corresponding to the connecting pipes 4. The drain port 22 of the drain 21 is positioned higher than the inlet port 32 of the drain 3.

Referring to fig. 3, the drain port 22 is provided with a filter screen 23, and the size of the filter screen 23 is just matched with that of the drain port 22.

Referring to fig. 4, the backflow prevention device includes a sealing cover 5, and one end of the sealing cover 5 is hinged to one end of the connecting pipe 4 near the water inlet 32. The sealing cover 5 can rotate up and down, and the sealing cover 5 covers the water inlet 32 under the action of no external force except gravity.

The implementation principle of the embodiment is as follows: when the water on road surface oozes into between former surface course 1 and the basic unit 2, rivers can be via 21 former surface course 1 of escape canal and basic unit 2 of escape canal outflow, because escape canal 21 sets up for the slope, so the speed of rivers will accelerate, some gravel and sand can be smugglied secretly when flowing, gravel and sand is intercepted by filter screen 23, can not flow outlet 22, outlet 22 passes through connecting pipe 4 connecting drain pipe 3, the horizontal position of drain pipe 3 is less than outlet 22, can accelerate rivers outflow outlet 22 and be difficult for gathering ponding in connecting pipe 4. The water flows into the drain pipe 3 and is temporarily accumulated in the drain pipe 3, and then flows into the soil base through the drain holes 31 provided in the drain pipe 3. When the water in the water discharge pipe 3 is excessive, the accumulated water will exert pressure on the side wall of the water discharge pipe 3, and the sealing cover 5 arranged at the water inlet 32 will be pressed to cover the water inlet 32, so that the accumulated water in the water inlet 32 will not flow back into the water discharge opening 22.

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 (8)

1. The utility model provides a cement concrete pavement structure drainage system, includes former surface course (1), basic unit (2), former surface course (1) is laid the top of basic unit (2), its characterized in that: a plurality of drainage ditches (21) are arranged between the original surface layer (1) and the base layer (2), and the upper end surfaces of the drainage ditches (21) are flush with the upper surface of the base layer (2); the both ends symmetry of escape canal (21) sets up the both sides at basic unit (2), just escape canal (21) are in basic unit (2) horizontal edge is equipped with outlet (22).

2. A cement concrete pavement structure drainage system as set forth in claim 1, wherein: the bottom of the drainage ditch (21) is obliquely arranged towards two ends of the base layer (2) in a mode that the middle is high and two sides are low.

3. A cement concrete pavement structure drainage system as set forth in claim 1, wherein: the cross section of the drainage ditch (21) is V-shaped.

4. A cement concrete pavement structure drainage system as set forth in claim 1, wherein: the two sides of the original surface layer (1) are provided with drain pipes (3); and water inlets (32) are formed in positions, corresponding to all the water outlets (22), of one side of the water discharge pipe (3), connecting pipes (4) are arranged on the water inlets (32), and the water inlets (32) are connected with the water outlets (22) through the connecting pipes (4).

5. A cement concrete pavement structure drainage system as set forth in claim 1, wherein: the water outlet (22) is provided with a filter screen (23).

6. The cement concrete pavement structure drainage system of claim 4, wherein: the drain pipe (3) is a cylindrical pipe body, and water leakage holes (31) are uniformly formed in the semi-cylindrical surface at the bottom of the drain pipe.

7. The cement concrete pavement structure drainage system of claim 4, wherein: the horizontal position of the drain pipe (3) is lower than the water outlet (22), and the connecting pipe (4) is obliquely connected with the water outlet (22) and the water inlet (32).

8. The cement concrete pavement structure drainage system of claim 4, wherein: the water inlet (32) is provided with a back-filling prevention device which is a sealing cover (5); the sealing cover (5) is hinged with the water inlet (32), and the shape and the size of the sealing cover (5) are matched with those of the water inlet (32).

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