CN216339666U

CN216339666U - Staggered roadbed retaining wall drainage system

Info

Publication number: CN216339666U
Application number: CN202123081283.1U
Authority: CN
Inventors: 吁燃; 张国发; 彭小勇; 张玉广; 黄星瑞
Original assignee: Guizhou Transportation Planning Survey and Design Academe Co Ltd
Current assignee: Guizhou Transportation Planning Survey and Design Academe Co Ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-04-19
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a staggered roadbed retaining wall drainage system, which comprises a water collecting side ditch, a diversion trench, transverse drainage pipes, drainage pipes and drainage wells, wherein the water collecting side ditch is arranged at the top between a retaining wall and an ascending roadbed; this drainage system can great improvement road surface water excretion ability, increases the unobstructed nature of infiltration behind the retaining wall, can avoid the wall to pollute, simultaneously, can reduce pull-down groove ponding.

Description

Staggered roadbed retaining wall drainage system

Technical Field

The utility model relates to a roadbed drainage system, in particular to a staggered roadbed retaining wall drainage system.

Background

In highway engineering, a roadbed is often set to be a wrong table type under the limitation of topographic conditions and laying of transverse and longitudinal slopes of a line; or in the municipal road, according to the traffic flow and the automobile passing condition, a pull-down groove is additionally arranged, and the left side and the right side adopt retaining wall retaining stops. The drainage system behind the overhead line and the retaining wall is particularly critical no matter the subgrade is staggered or the pull-down groove in the municipal administration.

At present, in the design of wrong platform formula road bed of highway, the outlet is buried underground through the barricade wall body to main consideration, and the infiltration water on earth and road surface is filled out behind the drainage wall, and other road surface water then scatter through road bed side ditch or road surface and arrange to the road bed side ditch that descends, and this mode exists following not enoughly: firstly, silt is carried in the infiltration water flow, and a water drainage hole is easy to block; secondly, the water flow carrying the silt is discharged through the water discharge holes and then is discharged to the wall feet of the retaining wall along the wall body to soak the foundation of the retaining wall, so that the stability of the retaining wall is influenced, and the appearance of the wall surface is also influenced by the pollution of the wall surface. In the design of the municipal road pull-down tank, water on the road surface of an ascending road is mainly scattered and collected to the pull-down tank through the road surface and then flows into a drainage pipeline through a drainage well, and when the amount of rainwater is large, the water is possibly accumulated in the pull-down tank only by means of seepage of the drainage well; similarly, seepage water on the back of the wall is discharged through the drainage holes on the wall body, and the appearance of the city is influenced by pollution on the wall surface. In view of this, the utility model provides a staggered subgrade and retaining wall drainage system in order to meet the drainage requirements of staggered subgrades or pull-down channel subgrades, not affect the attractiveness of retaining wall surfaces and increase the drainage capacity.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a staggered subgrade and retaining wall drainage system, which can greatly improve the drainage capacity of road surface water, increase the smoothness of water seepage behind retaining walls, avoid the pollution of wall surfaces, and reduce the water accumulation in pull-down troughs.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a formula roadbed barricade drainage system that misplaces, includes catchment side ditch, guiding gutter, horizontal drain pipe, drainage pipe and drainage well, catchment side ditch sets up at retaining wall and goes upward between the road bed top, the guiding gutter sets up under the catchment side ditch and with catchment side ditch intercommunication, the guiding gutter lower extreme extends to the road bed portion of going up, drainage pipe vertically sets up in retaining wall side downward road bed along the downward road bed, the interval is equipped with a plurality of drainage wells that are linked together with drainage pipe directly over the drainage pipe, the horizontal drain pipe intercommunication that sets up by a plurality of intervals between guiding gutter lower part and drainage pipe, the guiding gutter is built by the stereoplasm building stones.

Furthermore, a filter screen is arranged at the bottom of the water collecting side ditch.

Furthermore, the diversion trench is paved with reversed filter geotextile towards the side of the ascending roadbed.

Furthermore, a waterproof interlayer is laid at the bottom of the ascending roadbed.

Further, the transverse drain pipes are aligned with the drain wells one to one on the drain pipes.

Furthermore, the width of the diversion trench is 0.3-0.6 m.

Still further, the pipe diameter of the transverse drain pipe is 10-30 cm, and the distance is 2-5 m.

The utility model has the beneficial effects that:

according to the staggered roadbed retaining wall drainage system, the drainage side ditches collect the water on the road surface of the ascending roadbed, so that the phenomena of scattered drainage and surface water accumulation of the road surface are avoided, the road surface water collected by the drainage side ditches enters the drainage pipeline of the descending roadbed through the diversion trench and the transverse drainage pipe, the road surface water on the road surface of the descending roadbed enters the drainage pipeline of the descending roadbed through the drainage well, the drainage pipeline of the descending roadbed is drained in a centralized manner, the water on the road surface of the ascending roadbed enters the drainage pipeline through the diversion trench and the transverse drainage pipe, the water accumulation of the pull-down groove is greatly reduced, the drainage system is simple to construct, the construction is convenient, the blockage is not easy, and the pollution to the wall surface is avoided.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of the arrangement of the utility model on the cross section of the staggered subgrade.

In the figure: the water-retaining wall comprises an ascending roadbed 1, a retaining wall 2, a descending roadbed 3, a drainage side ditch 4, a diversion trench 5, a transverse drainage pipe 6, a drainage pipeline 7, a drainage well 8, a filter screen 9, a reverse filter geotextile 10 and an impermeable interlayer 11.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are illustrative of the utility model only and are not limiting upon the scope of the utility model.

As shown in figure 1, the staggered roadbed retaining wall drainage system comprises a catchment side ditch 4, a diversion trench 5, a transverse drainage pipe 6, a drainage pipeline 7 and a drainage well 8, the water collecting side ditch 4 is arranged at the top between the retaining wall 2 and the ascending roadbed 1, the guide groove 5 is arranged under the water collecting side ditch 4 and is communicated with the water collecting side ditch 4, the lower end of the diversion trench 5 extends to the bottom of the ascending roadbed 1, the drainage pipeline 7 is longitudinally arranged in the descending roadbed 3 at the side of the retaining wall 2 along the descending roadbed, a plurality of drainage wells 8 communicated with the drainage pipeline 7 are arranged above the drainage pipeline 7 at intervals, the lower part of the diversion trench 5 is communicated with the drainage pipeline 7 through a plurality of transverse drainage pipes 6 which are arranged at intervals, the transverse drainage pipes 6 are gradually inclined downwards from the diversion trench 5 to the drainage pipeline 7, so that drainage is smoother, and the diversion trench is filled with water-permeable hard stones.

4 bottoms of catchment side ditch are equipped with filter screen 9, and the filter screen filters the road surface grit, realizes the centralized processing road surface grit, prevents that the grit from blockking up the purpose of guiding gutter and horizontal drain pipe, has made things convenient for operation managers's cleaing away.

The diversion trench 5 is paved with the reversed filter geotextile 10 towards the side of the ascending roadbed 1, thereby increasing the drainage of downward seepage water in the ascending roadbed and avoiding sand from entering the diversion trench.

An impervious interlayer 11 is laid at the bottom of the ascending roadbed 1, so that the stability of the ascending roadbed can be enhanced, and the downward seepage water in the ascending roadbed is completely discharged by the diversion trench and the drainage pipeline.

The transverse drain pipes 6 and the drain wells 8 are aligned one by one on the drain pipes 7, and the transverse drain pipes 6 and the drain pipes 7 can be dredged through the drain wells 8.

Preferably, the width of the diversion trench 5 is 0.3-0.6 m.

The diameter of the transverse drain pipe 6 is 10-30 cm, and the distance is 2-5 m.

In the drainage system, the water on the ascending roadbed 1 is collected through the drainage side ditch 4, the filter screen 9 filters the sandstone on the pavement, thereby not only avoiding the phenomena of scattered drainage and accumulated water on the pavement, but also intensively treating the sandstone on the pavement, preventing the sandstone from blocking the diversion trench 5 and the transverse drainage pipe 6, leading the water flow to enter the diversion trench 5 and the transverse drainage pipe 6 and finally being intensively drained through the drainage pipeline 7 of the descending roadbed, therefore, most of the surface water of the ascending roadbed 1 enters the drainage pipeline 7 through the drainage system, the accumulated water of the pull-down groove is greatly reduced, the drainage system is simple to construct, convenient to construct and not easy to block, compared with the traditional wall body drainage hole mode, the diversion trench 5 is provided with the anti-filtration geotextile 10 close to the roadbed surface, the infiltration water drainage in the increase road bed promptly, avoid the wall to pollute again and influence pleasing to the eye, especially in town road pull-down tank, the wall has many sculpture or drawing, and is more conflicted with the setting of wall body outlet.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. The utility model provides a formula road bed barricade drainage system that misplaces which characterized in that: including catchment side ditch (4), guiding gutter (5), horizontal drain pipe (6), drainage pipe (7) and drainage shaft (8), catchment side ditch (4) set up retaining wall (2) and go up between road bed (1) top, guiding gutter (5) set up under catchment side ditch (4) and with catchment side ditch (4) intercommunication, guiding gutter (5) lower extreme extends to going up road bed (1) bottom, drainage pipe (7) vertically set up in retaining wall (2) side downstream road bed (3) along downstream road bed, the interval is equipped with drainage shaft (8) that a plurality of and drainage pipe (7) are linked together directly over drainage pipe (7), horizontal drain pipe (6) intercommunication by a plurality of intervals setting between guiding gutter (5) lower part and drainage pipe (7), fill by the stereoplasm building stones in guiding gutter (5).

2. The staggered subgrade and retaining wall drainage system according to claim 1, which is characterized in that: and a filter screen (9) is arranged at the bottom of the water collecting side ditch (4).

3. The staggered subgrade and retaining wall drainage system according to claim 1, which is characterized in that: the side of the diversion trench (5) facing the ascending roadbed (1) is paved with reversed filtering geotextile (10).

4. The staggered subgrade and retaining wall drainage system according to claim 1, which is characterized in that: and a waterproof interlayer (11) is laid at the bottom of the ascending roadbed (1).

5. The staggered subgrade and retaining wall drainage system according to claim 1, which is characterized in that: the transverse drainage pipes (6) are aligned with the drainage wells (8) one by one on the drainage pipes (7).

6. The staggered type roadbed retaining wall drainage system according to any one of claims 1 to 5, wherein: the width of the diversion trench (5) is 0.3-0.6 m.

7. The staggered type roadbed retaining wall drainage system according to any one of claims 1 to 5, wherein: the pipe diameter of the transverse drain pipe (6) is 10-30 cm, and the distance is 2-5 m.