CN102322094A - Road surface combined drainage system - Google Patents

Abstract

The invention discloses a pavement comprehensive drainage system, which comprises first rainwater inspection wells (3) and/or second rainwater inspection wells (4) arranged at intervals near sidewalks (1) or/and non-motor vehicle lanes (2); Rainwater pipes (6) are arranged along the longitudinal full line of the road surface at the lower part of the roadway (5); rainwater pipe inspection wells (7) communicated with the rainwater pipes (6) are arranged at intervals on the roadway (5). This comprehensive drainage system makes the road drain quickly and effectively, which is conducive to the safety of vehicles, protects the structural layer of the road, and makes the road surface smoother. It is convenient for construction and low in maintenance costs.

Description

Comprehensive pavement drainage system

technical field

The invention relates to a drainage structure, in particular to a road surface drainage system.

Background technique

Generally, there are six sources of water that need to be drained on roads, including surface runoff water, pavement surface seepage water, central divider seepage water, pavement brick seepage water, subgrade drainage, and underground capillary water. The conventional road rainwater drainage system usually collects road rainwater by setting a rainwater outlet at the side stone every 40m on the road, in which each rainwater outlet is connected to the drainage inspection well, and the rainwater is relieved through vertical and horizontal drainage pipes .

The above-mentioned traditional point-type gully drainage mode has the following disadvantages: 1) The drainage capacity is weak; 2) The ground is uneven, the surface is wavy and funnel-shaped due to the need for slope finding on three sides, and the places along the road that do not meet 0.3% longitudinal drainage must Solve it by setting zigzag street ditches; 3) The slope and construction are more complicated; 4) Since the pipeline needs a certain buried depth, the construction excavation volume is relatively large; 5) The drainage is not smooth, and the risk of ground water is relatively large; 6 ) pipes are prone to clogging and cause failure of the entire drainage system; 7) pipes are expensive to maintain; 8) may conflict with other buried piping systems.

Therefore, those skilled in the art are devoting themselves to developing a pavement integrated drainage system with strong drainage capacity and simple construction.

Contents of the invention

In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a comprehensive pavement drainage system with strong drainage capacity and simple construction.

In order to achieve the above object, the present invention provides a comprehensive pavement drainage system, including the first rainwater inspection well or/and the second rainwater inspection well arranged at intervals near the sidewalk or/and bicycle lane; Rainwater pipes are arranged on the whole longitudinal direction of the surface; rainwater pipe inspection wells connected with the rainwater pipes are arranged at intervals on the roadway.

Preferably, the outside of the sideline of the roadway close to the sidewalk is provided with a third rainwater inspection well along the longitudinal interval of the road surface; the lower part of the road surface is provided with a transverse gravel blind ditch communicating with the third rainwater inspection well along the lateral direction of the road surface; A first permeable pipe is provided at the bottom of the transverse gravel blind ditch.

Preferably, the inspection shaft of the third gully is in communication with the inspection shaft of the rainwater pipe.

Preferably, the first gully inspection shaft and/or the second gully inspection shaft are respectively communicated with the third gully inspection shaft.

Preferably, the inspection wells of the third rainwater outlets located on the left and right sides of the center line of the road surface are arranged in a staggered position.

Preferably, along the longitudinal direction of the road surface, the longitudinal distance between two adjacent first rainwater inspection wells is twice the longitudinal distance between two adjacent third rainwater inspection wells.

Preferably, the said transverse gravel blind ditch is wrapped with an anti-seepage geotextile.

Preferably, the top and side surfaces of the rainwater pipe inspection shaft are provided with void areas; the roadway is outside the range of 30 cm from the rainwater pipe inspection shaft, and the upper layer is an open-graded anti-skid wear layer, and the lower layer is a coarse-grained anti-skid wear layer. Asphalt concrete; the roadway is close to the range of 30cm of the rainwater pipe inspection well, and the upper and lower layers are all open-graded anti-skid wear layers.

Preferably, the lower part of the road surface is provided with a longitudinal gravel blind ditch along the longitudinal direction of the road surface; the bottom of the longitudinal gravel blind ditch is provided with a second permeable pipe.

Preferably, the upper layer of the sidewalk is permeable brick, and the base layer is a cement treatment drainage base; the sidewalk is longitudinally provided with a third permeable pipe connected to the first rainwater inspection well at the lowest point of the base layer.

The beneficial effects of the present invention are:

1. The comprehensive drainage system of the present invention better eliminates the runoff water on the road surface and the interlayer water infiltrated into the pavement layer, avoids the problems of vehicle drifting and road surface reflection caused by the stagnant rainwater forming a water film, and ensures the safety of driving. Safety;

2. The comprehensive drainage system of the present invention effectively eliminates the interlayer water trapped in the pavement, reduces the occurrence of water damage on the road surface, and prolongs the service life of the road;

3. The comprehensive drainage system of the present invention makes the road surface smoother, and has convenient construction and low maintenance cost.

In a word, the invention makes the drainage of the road quick and effective, which is beneficial to the safety of vehicles and protects the structural layer of the road.

The idea, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present invention.

Description of drawings

Fig. 1 is a schematic plan view of Embodiment 1 of the present invention.

FIG. 2 is a schematic diagram of the cross-sectional structure of FIG. 1 .

Fig. 3 is an elevation view of the driveway near the rainwater pipe inspection shaft in Embodiment 1 of the present invention.

Fig. 4 is a schematic diagram of the structure of the lateral gravel blind ditch in Example 1 of the present invention.

Fig. 5 is a partial enlarged view of I in Fig. 2 .

Fig. 6 is a schematic plan view of Embodiment 2 of the present invention.

FIG. 7 is a schematic diagram of the cross-sectional structure of FIG. 2 .

Detailed ways

Example 1:

As shown in Figures 1 to 5, a specific embodiment of the integrated pavement drainage system of the present invention mainly includes first rainwater inspection wells 3 arranged at intervals of 40m near the sidewalk 1. At the bottom of the roadway 5, a rainwater pipe 6 is arranged along the longitudinal full line of the road surface, and a rainwater pipe inspection well 7 communicated with the rainwater pipe 6 is arranged at intervals of 40 m on the roadway 5.

On one side of the central divider, the sideline 51 of the roadway 5 near the sidewalk 1 is close to the outside, along the longitudinal direction of the road surface, a third rainwater inspection shaft 9 is arranged at intervals of 40m. And be respectively positioned at the centerline 13 left and right sides of the road surface the 3rd rainwater inlet inspection well 9 misplaced settings.

In other specific embodiments, the third rainwater inspection wells 9 respectively located on the left and right sides of the center line 13 of the road surface can also be arranged on the same transverse section, so as to achieve basically the same technical effect.

The rainwater pipe inspection well 7 communicates with the third rainwater outlet inspection well 9 through the rainwater connecting pipe 16 of DN300.

In this embodiment, the longitudinal distance between the two third rainwater wells 9 that are vertically adjacent on both sides of the central line 13 is 20m.

The lower part of the pavement is along the transverse direction of the pavement, and every 40m is provided with a transverse gravel blind ditch 8 communicating with the third rainwater inspection well 9, and the bottom of the transverse gravel blind ditch 8 is provided with a φ10 high-velocity soft permeable pipe 81.

As shown in Figure 3, the arrows indicate the flow direction of rainwater. Both the top surface and the side surface of the rainwater pipe inspection well 7 are provided with void areas (not shown in the figure). The roadway 5 is outside the 30cm range of the rainwater pipe inspection well, and its upper layer 51 is an open graded anti-skid wear layer (OGFC), and the lower layer 52 is coarse-grained asphalt concrete. In the range of 30cm near the rainwater pipe inspection well of the roadway 5, the upper and lower layers are all open-graded anti-skid wear layers.

The upper layer 14 of the sidewalk 1 is a permeable surface brick, and the base 15 is a cement treatment drainage base. The sidewalk 1 is at the lowest point of the base layer, and is longitudinally provided with a soft permeable pipe 11 communicating with the first rainwater inspection shaft 3 .

At one-half of the central divider, the lower part is provided with longitudinal gravel blind ditch 10 pipes along the longitudinal direction of the road surface.

The lower part of the sidewalk 1 is near the inspection well 3 of the first rainwater outlet, and is provided with a longitudinal crushed stone blind ditch 10 communicating with each horizontal crushed stone blind ditch. Between the first rainwater inspection shaft 3 and the third rainwater inspection shaft 9, near the third rainwater inspection shaft 9, a longitudinal gravel blind ditch 10 is arranged along the longitudinal direction of the road surface.

The bottom of each longitudinal crushed stone blind ditch 10 is provided with a φ10 high-velocity soft permeable pipe. Each vertical gravel blind ditch and each transverse gravel blind ditch are wrapped by anti-seepage geotextile 12. The setting positions of each horizontal crushed stone blind ditch and each vertical crushed stone blind ditch must be above the elevation of the high water level and below the pavement structure.

Drainage principle of the present invention is as follows:

After the first rainwater inspection well 3 collects rainwater, it is discharged into the third rainwater inspection well 9, and then discharged into the rainwater pipe 6, so the road surface runoff water drainage is completed by the first rainwater inspection well 3, the rainwater pipe inspection well 7 and the rainwater pipe 6; The water permeability of OGFC discharges the permeable water of the pavement surface; discharges the rainwater in the soil and green irrigation water through the longitudinal gravel blind ditch under the central divider; collects the water from the sidewalk through the soft permeable pipe 11 at the bottom of the sidewalk base The rainwater is discharged into the inspection well 3 of the first rainwater outlet; the base layer and capillary water of the roadbed are collected through the φ10 high-speed soft permeable pipe in the horizontal gravel blind ditch 8, and discharged into the third rainwater inspection well 9 on the outside of the motorway , and then discharged into the rainwater pipe inspection well 7 under the motorway through the DN300 connecting pipe.

Example 2:

As shown in Fig. 6 and Fig. 7, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is that the road surface includes a non-motorized vehicle lane 2, and the second rainwater inspection wells arranged at intervals of 40m near the non-motorized vehicle lane 2 4. The inspection well 4 of the second rainwater outlet is communicated with the inspection shaft 9 of the third rainwater inlet through a DN300 rainwater connecting pipe 17 . A longitudinal gravel blind ditch 10 is arranged between the first gully inspection shaft 3 and the second gully inspection shaft 4 , and a longitudinal gravel blind ditch 10 is arranged between the second gully inspection shaft 4 and the third gully inspection shaft 9 .

Other structures and drainage principles of this embodiment are the same as those of Embodiment 1.

The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall be within the scope of protection defined by the claims.

Claims (10)

1. A pavement comprehensive drainage system, comprising first rainwater inspection wells (3) or/and second rainwater inspection wells (4) arranged at intervals near sidewalks (1) or/and bicycle lanes (2); its features It is: rainwater pipes (6) are arranged on the lower part of the roadway (5) along the entire longitudinal line of the road surface; rainwater pipe inspection wells (7) connected with the rainwater pipes (6) are arranged at intervals on the roadway (5). 2. The pavement comprehensive drainage system according to claim 1, characterized in that: the roadway (5) is provided with third rainwater outlets along the longitudinal interval of the road surface on the outside of the sideline (51) close to the sidewalk (1) inspection well (9); the lower part of the road surface is provided with a transverse gravel blind ditch (8) communicating with the third rainwater inlet inspection well (9) along the lateral direction of the road surface; the bottom of the transverse gravel blind ditch (8) is provided with The first permeable pipe (81). 3. The pavement comprehensive drainage system according to claim 2, characterized in that: the third rainwater inlet inspection well (9) communicates with the rainwater pipe inspection well (7). 4. The pavement integrated drainage system according to claim 3, characterized in that: the first rainwater inspection well (3) and/or the second rainwater inspection well (4) are respectively connected to the third rainwater inspection well (9 ) connectivity. 5. The pavement comprehensive drainage system according to claim 2, characterized in that: the third rainwater inspection wells (9) located on the left and right sides of the center line (13) of the road surface are arranged in a misplaced position. 6. The pavement comprehensive drainage system according to claim 5, characterized in that: along the longitudinal direction of the road surface, the longitudinal distance between two adjacent first rainwater inlet inspection shafts (3) is equal to that between two adjacent ones. Describe twice of the longitudinal distance of the third rainwater inlet inspection shaft (9). 7. The pavement comprehensive drainage system according to claim 2, characterized in that: said transverse gravel blind ditch (8) is wrapped with anti-seepage geotextile (12). 8. The pavement comprehensive drainage system according to any one of claims 2 to 7, characterized in that: the top and side surfaces of the rainwater pipe inspection shaft (7) are provided with void areas; Outside the range of 30cm from the rainwater pipe inspection shaft (7), the upper layer (51) is an open-graded anti-skid wear layer, and the lower layer (52) is coarse-grained asphalt concrete; the roadway (5) is close to the rainwater pipe Within the scope of inspection shaft (7) 30cm, its upper and lower layers are all open-graded anti-skid wear layers. 9. The pavement integrated drainage system according to any one of claims 1 to 7, characterized in that: the lower part of the pavement is provided with a longitudinal gravel blind ditch (10) along the longitudinal direction of the pavement; the longitudinal gravel blind ditch (10) The bottom is provided with a second permeable pipe. 10. The pavement comprehensive drainage system according to any one of claims 1 to 7, characterized in that: the upper layer of the sidewalk (1) is a permeable surface brick, and the base layer is a cement treatment drainage base; A third permeable pipe (11) communicating with the first rainwater inspection well (3) is arranged longitudinally at the lowest point.

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