CN211498333U - A subgrade drainage structure for municipal road construction - Google Patents

Abstract

The utility model relates to a road bed drainage structures is used in town road construction, in particular to road construction's technical field, it is located the step, and one side is the massif, and the opposite side is the city, including pavement layer and drainage canal, the drainage canal is located the both sides of pavement layer, the drainage canal is including drainage canal one and drainage canal two, and the cross-section aperture of drainage canal one is greater than the cross-section aperture of drainage canal two, and drainage canal one is unanimous with the top opening width of drainage canal two, is provided with between drainage canal one and the pavement layer and keeps off the native fence, keeps off and is provided with the floor drain between native fence and the pavement layer, and floor drain and drainage canal intercommunication. The utility model discloses have the effect of the drainage that is fit for mountain foot town road.

Description

A subgrade drainage structure for municipal road construction

technical field

The utility model relates to the technical field of road construction, in particular to a roadbed drainage structure for municipal road construction.

Background technique

The road drainage includes a pavement drainage part and a roadside drainage part. The pavement drainage part consists of a base layer, a waterproof layer and a water-permeable layer in order from bottom to top. A pavement drainage groove is arranged above the waterproof layer; the roadside drainage part includes The permeable road edge stones arranged on both sides of the road and adjacent to the road drainage part, and the roadside drainage grooves below the permeable road edge stones; The water-permeable surface layer contains a water-permeable material, the water-permeable reinforcement layer is adjacent to the inner surface of the water-permeable surface layer, and the water-permeable reinforcement layer has a cavity.

The utility model patent with the authorization announcement number CN209384053U in the prior art discloses a roadbed drainage device, which includes an original soil compaction layer, a fine-grained asphalt concrete pavement and a slope 1. The upper end of the original soil compaction layer is provided with a concrete block water layer, the upper end of the concrete water retaining layer is laid with a coarse sandstone cushion, the upper end of the coarse sandstone cushion is laid with a fine sandstone cushion, and the upper end of the fine sandstone cushion is provided with a coarse-grained asphalt concrete layer , the upper end of the coarse-grained asphalt concrete layer is provided with the fine-grained asphalt concrete pavement, the upper end of the fine-grained asphalt concrete pavement is provided with road teeth on both sides, and a filter cover is provided on one side of the road teeth, and the The lower end of the filter cover is provided with a sewer. The beneficial effect is as follows: the utility model adopts the laying method of the coarse sandstone cushion and the concrete water retaining layer in which the middle is high and the two sides are low, so that the water infiltrating into the roadbed from the fine-grained asphalt concrete pavement can be guided to both sides of the road, preventing the roadbed from foaming. Water makes the structure of the roadbed more stable and increases the service life of the road.

The prior art scheme in the above has the following defects: because one side of the municipal road at the foot of the mountain needs to undertake the discharge of large-flow stagnant water, but the drainage channels on both sides of the above-mentioned structure have relatively small apertures to withstand the discharge of water flow, so the road in the above-mentioned structure is relatively small. The use of subgrade drainage structure is not suitable for drainage of municipal roads at the foot of the mountain.

Utility model content

The purpose of the utility model is to provide a subgrade drainage structure for municipal road construction, which has the effect of being suitable for the drainage of municipal roads at the foot of a mountain.

The above-mentioned utility model purpose of the present utility model is achieved through the following technical solutions:

A subgrade drainage structure for municipal road construction is located at the foot of a mountain, with a mountain on one side and a city on the other, including a pavement layer and a drainage channel, the drainage channels are located on both sides of the pavement layer, and the drainage channel includes a drainage channel 1 and a drainage channel. For channel 2, the cross-sectional aperture of drain channel 1 is larger than that of drain channel 2. The width of the top openings of drain channel 1 and drain channel 2 are the same. There is a retaining fence between drainage channel 1 and the road surface layer. There is a floor drain in between, and the floor drain is in communication with the drainage channel.

By adopting the above technical solution, the diameter of the first drainage channel close to the mountain is larger than that of the second drainage channel, because in the case of heavy rain, the water flow on the mountain is larger than that on the road surface, so the diameter of the first drainage channel is larger than that of the drainage channel. The diameter of the second channel is more reasonable. A retaining fence is set between the drainage channel 1 and the pavement layer. When the soil on the mountain is washed down, the retaining bar will block the soil into the drainage channel 1 outside the road surface.

The utility model is further configured as follows: the top section of the first drainage channel is rectangular, and the lower section of the second drainage channel is circular.

By adopting the above technical solution, the cross-section of the lower end of the second drainage channel is set to be circular, so that when the water flow is too large and too fast, the second drainage channel can more easily withstand the impact of the large flow of water.

The utility model is further arranged as follows: the cross section of the second drainage channel is an isosceles trapezoid with an upper bottom longer than a lower bottom.

By adopting the above technical solution, the section of the second drainage channel is an isosceles trapezoid with the upper bottom longer than the lower bottom, so that the second drainage channel bears lower pressure when the water flows through the second drainage channel.

The utility model is further provided that: the waist of the first drainage channel and the bottom end of the second drainage channel are communicated through the first pipeline.

By adopting the above technical solution, the waist of the drainage channel 1 is connected with the bottom end of the drainage channel 1 through the pipeline 1. When the drainage channel 1 or drainage channel 2 of a certain section of the road is blocked, the drainage will not be affected temporarily.

The utility model is further configured as follows: the surface of the pavement layer is provided with a green belt along the longitudinal axis direction of the pavement layer, and a spherical reservoir is communicated with a pipe below the green belt.

By adopting the above technical solution, the surface of the pavement layer is provided with a green belt, and the green belt is provided with a spherical water reservoir.

The utility model is further configured as follows: the green belt and the reservoir are communicated through a second pipe, and the second pipe is provided with a nozzle 1 and a nozzle 2, the nozzle 1 faces the green belt, and the nozzle 2 faces the road surface.

By adopting the above technical solution, the green belt is connected with the reservoir. When the green belt needs to be watered, the first sprinkler is turned on. When the road is too hot in summer, the second sprinkler is turned on, and the water in the reservoir is pumped out, so that the asphalt can be pumped out. The road surface is cooled to prevent the asphalt from softening due to hot weather.

The utility model is further configured as follows: threaded pipes are pre-buried on the top side walls of the first drainage channel and the second drainage channel, the upper ports of the drainage channel 1 and the second drainage channel are covered with rain grate, and the rain grate and the threaded hole are fixed by bolts.

By adopting the above technical solution, the threaded pipe is pre-embedded on the abutting surface of the rain grate and the drainage channel 1 or the drainage channel 2, and the rain grate is provided with a number of threaded holes, so the rain grate can be fixed to the drainage channel. to avoid rain grate shifting.

The utility model is further arranged as follows: a silt well for people to pass through is arranged every 100 meters in the drainage channel.

By adopting the above technical solution, since the silt brought down from the mountain is very easy to accumulate in the drainage channel close to the mountain, when this silt well for people to pass through is set every 100 meters, most of the silt can be deposited into the silt. Desilting in the well.

To sum up, the beneficial technical effects of the present utility model are:

1. The diameter of the drainage channel 1 near the side of the mountain is larger than that of the drainage channel 2, because in the case of heavy rain, the water flow on the mountain is larger than that on the road surface, so the diameter of the drainage channel 1 is larger than that of the drainage channel 2. more reasonable. A retaining fence is set between the drainage channel 1 and the pavement layer. When the soil on the mountain is washed down, the retaining bar will block the soil to the drainage channel 1 outside the road surface;

2. The cross section of the lower end of the second drainage channel is set to be circular, so that when the water flow is too large and too fast, the second drainage channel can more easily withstand the impact of the large flow of water.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a cross-sectional view taken along A-A in FIG. 1 .

FIG. 3 is a cross-sectional view taken along B-B in FIG. 1 .

FIG. 4 is an enlarged schematic view of part C in FIG. 2 .

In the figure, 1. Pavement layer; 2. Drainage channel; 21. Drainage channel 1; 22. Drainage channel 2; 3. Reservoir; 4. Pipeline 1; 5. Green belt; 6. Pipeline 2; 7. Rain grate ; 71, threaded pipe; 72, bolt; 8, silt well; 9, retaining fence; 10, mountain.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

1 and 2, a subgrade drainage structure for municipal road construction disclosed by the utility model is located between the foot of the mountain 10 and the city. The utility model includes a pavement layer 1 and drainage channels on both sides of the pavement layer 1. 2. Drainage channel 2 includes drainage channel 1 21 and drainage channel 2 22, drainage channel 1 21 is located between pavement layer 1 and mountain 10, drainage channel 2 22 is located on the side of pavement layer 1 away from mountain body 10, drainage channel 1 21 and An earth retaining fence 9 is arranged between the pavement layers 1 , a floor drain is arranged between the earth retaining fence 9 and the pavement layer 1 , and the floor drain communicates with the drainage channel 1 21 .

The top section of the drainage channel 1 21 is a rectangle, the bottom section of the drainage channel 1 21 is a circle, and the section of the drainage channel 2 22 is an isosceles trapezoid whose upper bottom is longer than the lower bottom. The inner wall of the second drainage channel 22 is more resistant to the impact of water flow.

The waist of the drainage channel 1 21 is connected with the bottom end of the drainage channel 2 22 through the pipeline 1 4. The upper surface of the pavement layer 1 is also provided with a green belt 5 along the length direction of the pavement layer 1. The green belt 5 is directly connected through the pipeline 4. There is a reservoir 3, and the reservoir 3 is connected with the green belt 5 through the pipeline 2 6, which is set up to store the water in the drainage channel 2. When the rainstorm occurs, the excess water in the drainage channel 1 21 will flow through. The pipe one 4 is thus stored in the reservoir 3. When it rains lightly, since the drain two 22 is shallower than the drain one 21, the water in the drain two 22 will flow through the pipe one 4 and be stored.

Since asphalt tends to cool down in a high temperature environment in summer, it is necessary to regularly sprinkle water on the asphalt pavement to cool down in rainless weather. When the pavement is exposed to the sun, the water in the reservoir 3 can be used to cool the pavement. In addition, the water in the reservoir 3 can also be used for watering the green belt 5 .

The water reservoir 3 is spherical, which is arranged so that the water reservoir 3 is not easily ruptured when it is subjected to the pressure of the traffic flow on the road surface.

2 and 4, the drainage channel 2 is also provided with a rain grate 7, and the purpose of this setting is to prevent the solids such as leaves from entering the drainage channel 2 to block the water inlet of the reservoir 3, the drainage channel 1 21 and the drainage channel 2. A threaded pipe 71 is pre-embedded on the inner wall of the top end of 22, and the rain grate 7 is connected with the threaded pipe 71 on the drainage channel 1 21 and the drainage channel 2 22 by bolts 72, so as to prevent the rain grate 7 from being displaced by accumulated current.

Referring to Fig. 3, the drainage channel 1 (21) is provided with a silt well 8 every 100 meters to 200 meters for people to pass through, and the silt in the drainage channel 1 21 is deposited into the silt well 8 so that people can clean it regularly, so as to achieve dredging. Effect.

The implementation principle of the present embodiment is as follows: when the rainwater on the mountain remains, it is blocked by the earth retaining fence 9 and flows into the drainage channel 1 21 through the rain grate 7, so as to prevent excessive rainwater from flowing onto the road surface layer 1, even if a part of the rain grate 7 is blocked , the water will also be diverted to the unblocked rain grate 7 by the earth retaining fence 9 . The rainwater on the pavement layer 1 will flow into the second drainage channel 22 for diversion. It is more reasonable to set the diameter and width of the drainage channel 1 21 to be larger than that of the drainage channel 2 22 .

The cross-section of the first drainage channel 21 is circular, and the cross-section of the second drainage channel 22 is an isosceles trapezoid with an upper bottom width greater than a lower bottom width, which can be more impact-resistant for drainage. When the temperature of the pavement layer 1 is too high, the water in the reservoir 3 can be extracted for spraying and cooling, and the water in the reservoir 3 can be pumped to irrigate the green belt 5. The inner wall of the reservoir 3 is spherical and uses an arched shape. more pressure-resistant principle.

The examples of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention are not It should be covered within the protection scope of the present invention.

Claims (9)

1. A subgrade drainage structure for municipal road construction, located at the foot of a mountain, with a mountain body (10) on one side and a city on the other side, comprising a pavement layer (1) and a drainage channel (2), and the drainage channel (2) is located on the pavement layer The two sides of (1) are characterized in that: the drainage channel (2) includes a drainage channel 1 (21) and a drainage channel 2 (22), and the cross-sectional diameter of the drainage channel 1 (21) is larger than that of the drainage channel 2 (22). The diameter of the cross-section is the same as that of the top openings of the first drainage channel (21) and the second drainage channel (22). There is a retaining bar (9) between the drainage channel 1 (21) and the road surface layer (1), and the retaining bar (9). ) and the pavement layer (1) are provided with a floor drain, which is communicated with the drainage channel one (21). 2 . The subgrade drainage structure for municipal road construction according to claim 1 , wherein the top section of the first drainage channel (21) is rectangular, and the lower section of the second drainage channel (22) is circular. 3 . 3 . The subgrade drainage structure for municipal road construction according to claim 2 , wherein the cross section of the second drainage channel ( 22 ) is an isosceles trapezoid with an upper bottom longer than a lower bottom. 4 . 4 . The roadbed drainage structure for municipal road construction according to claim 3 , wherein the cross-sections of the two side walls of the drainage channel ( 2 ) are isosceles trapezoids with an upper bottom longer than a lower bottom. 5 . 5. A subgrade drainage structure for municipal road construction according to claim 4, characterized in that: the waist of the first drainage channel (21) and the bottom end of the second drainage channel (22) are connected through the first pipeline (4). . 6. A subgrade drainage structure for municipal road construction according to claim 5, characterized in that: the surface of the pavement layer (1) is provided with a green belt (5) along the longitudinal axis of the pavement layer (1), A spherical reservoir (3) is communicated with the pipeline one (4) below the green belt (5). 7. A subgrade drainage structure for municipal road construction according to claim 6, characterized in that: the green belt (5) and the reservoir (3) are connected through a second pipe (6), and the second pipe (6) A nozzle 1 and a nozzle 2 are arranged on the nozzle, the nozzle 1 faces the green belt (5), and the nozzle 2 faces the road surface. 8. A subgrade drainage structure for municipal road construction according to claim 7, characterized in that: a threaded pipe (71) is pre-embedded on the top and side walls of the first drainage channel (21) and the second drainage channel (22). , the upper ports of drain one (21) and drain two (22) are covered with rain grate (7), and the rain grate (7) and the threaded hole are fixed by bolts (72). 9 . The roadbed drainage structure for municipal road construction according to claim 8 , wherein the first drainage channel ( 21 ) is provided with a silt well ( 8 ) every 100 meters for people to pass through. 10 .

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