CN212714363U - Drainage structure for modifying road into municipal water-permeable pavement road - Google Patents

Drainage structure for modifying road into municipal water-permeable pavement road Download PDF

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CN212714363U
CN212714363U CN202021115689.XU CN202021115689U CN212714363U CN 212714363 U CN212714363 U CN 212714363U CN 202021115689 U CN202021115689 U CN 202021115689U CN 212714363 U CN212714363 U CN 212714363U
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layer
road
permeable
drainage
pavement
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CN202021115689.XU
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童攀
聂柏林
颜廷希
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PowerChina Chengdu Engineering Co Ltd
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PowerChina Chengdu Engineering Co Ltd
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Abstract

The utility model discloses a highway is reformed transform into drainage structures of municipal administration permeable pavement road relates to the road engineering field, and the technical problem of solution improves one kind and reforms transform the drainage scheme of municipal administration permeable pavement road with the highway. The technical proposal adopted by the utility model is that; the method comprises the following steps that a road is transformed into a drainage structure of a municipal permeable pavement road, side ditches are arranged on two sides of the pavement respectively, the surface layer of the pavement structure is a permeable layer, the lower layer of the permeable layer is a sealing layer, and the lower side of the sealing layer is a base layer and a cushion layer; the water collecting pipe is buried underground in road surface both sides, seal upper surface and the permeable bed that is close to the side ditch inside wall, sets up the hole of permeating water on the pipe wall of water collecting pipe, and the water collecting pipe interval connection drain pipe, the delivery port of drain pipe are located the side ditch, and the top of side ditch is sealed through apron and rainwater grate. The utility model discloses under the prerequisite that does not change the whole drainage of highway, can be effectively with the side ditch connection of not reforming transform the highway section, it is simple to have a construction, and the cost is low, advantage that the time limit for a project is short than municipal drainage system.

Description

Drainage structure for modifying road into municipal water-permeable pavement road
Technical Field
The utility model relates to a road engineering field specifically is a drainage structures who relates to a town road who obtains by highway transformation.
Background
In recent years, the urbanization construction of China is continuously promoted, and with the development of cities, the existing urban roads can not meet the development requirements of the cities. In such cases, it is a trend to enhance the construction of town roads, or to modify existing roads into town roads.
The surface layer of the highway is impervious, rainwater and sewage pipelines are not arranged, side ditches and drainage ditches are used for draining water, culverts are used for draining water into nearby natural ditches, and the depth of the side ditches and the depth of the drainage ditches are generally 0.5-0.8 m below the pavement. The permeable municipal road utilizes a gully for drainage, and the depth of the gully is about 0.8-1.0 m below the road surface generally. Because the drainage system mode of highway and town road is different, when the highway was reformed transform into the municipal administration and is passed through the waterway, if reform transform into town road drainage system original roadside drainage system of highway, the height difference between roadside ditch and the inlet for stom water can cause the drainage not smooth even block up, leads to roadside ditch can not satisfy the drainage requirement. In order to meet the drainage requirements of the permeable pavement, the side ditch of the highway is required to be modified into a drainage system of the municipal permeable pavement, and a rainwater gathering port is added, namely the drainage system is constructed again; the problems of large project amount, complex construction process, long construction period and high construction cost exist. In addition, because the original drainage direction is changed, the newly constructed drainage system cannot be well combined with the unmodified road drainage system connected with the newly constructed drainage system, and an effective drainage system is difficult to form.
Therefore, when a highway is transformed into a municipal road, a new scheme about a drainage system is urgently needed to be designed, the requirement that the drainage requirement of transforming the highway into a permeable pavement can be met, the existing drainage system is utilized to the maximum extent, the drainage direction is not changed, and a system can be formed by the drainage system and the nearby non-transformed highway.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a drainage scheme of reforming transform the highway into municipal administration permeable pavement road is provided.
The utility model provides a technical scheme that its technical problem adopted is: the road is transformed into a drainage structure of a municipal permeable pavement road, two sides of the pavement are respectively provided with a side ditch, the surface layer of the pavement structure is a permeable layer, the lower layer of the permeable layer is a waterproof sealing layer, the sealing layer is obliquely arranged from the center line of the pavement to two sides, and the lower side of the sealing layer is provided with a base layer and a cushion layer; the water collecting pipe is buried underground in road surface both sides, seal upper surface and the permeable bed that is close to the side ditch inside wall, sets up the hole of permeating water on the pipe wall of water collecting pipe, and the water collecting pipe interval connection drain pipe, the delivery port of drain pipe are located the side ditch, and the top of side ditch is sealed through apron and rainwater grate.
Further, the method comprises the following steps: the pavement structure comprises a permeable layer, a sealing layer, a base layer, a cushion layer and a compacted soil base layer from top to bottom in sequence, wherein a structural layer below the sealing layer is a structural layer of the highway.
Further, the method comprises the following steps: the road surface structure comprises a permeable layer, a sealing layer, an asphalt concrete layer, a permeable layer, a base layer, an underlayer, a cushion layer and a compacted soil base layer from top to bottom in sequence, wherein a structural layer below the sealing layer is a structural layer of the road.
Further, the method comprises the following steps: the seal is arranged downwards to the side ditch slope that closes on respectively in road surface both sides, and then the level is arranged, and the vertical downward arrangement of side ditch inside wall again, the seal forms slope district, horizontal zone and vertical district respectively, and the slope district forms the cladding to the basic unit and the structural layer between basic unit and the seal, and the collector pipe sets up in the upper surface of horizontal zone.
Specifically, the method comprises the following steps: the permeable layer is permeable asphalt concrete, and the seal is asphalt synchronous macadam seal.
Specifically, the method comprises the following steps: the collector pipe is a steel pipe with water permeable holes on the pipe wall, and the drain pipe is also a steel pipe.
Specifically, the method comprises the following steps: the side ditch comprises an inner side wall, an outer side wall and a bottom plate, the cross section of the side ditch is U-shaped, and the inner side wall, the outer side wall and the bottom plate are integrally poured reinforced concrete.
Specifically, the method comprises the following steps: curb is buried underground in the outside of side ditch, and the bottom of curb sets up the mortar bed course, and the top surface of curb is higher than the height on the top layer of road surface structure.
Further, the method comprises the following steps: the drain pipe is arranged at the position corresponding to the rainwater grate. Specifically, the method comprises the following steps: the rainwater grates are arranged at equal intervals, and the interval between every two adjacent rainwater grates is 40 m.
The utility model has the advantages that: the utility model can be effectively connected with the original side ditch of the road section which is not transformed under the condition of not changing the whole drainage direction and the drainage capacity of the road, and the functional function of the roadside side ditch of the original road is utilized to the maximum extent; meanwhile, the cover plate and the rainwater grate can be used as a non-motor vehicle and a sidewalk, so that the effective area of the non-motor vehicle and a pedestrian passageway is increased on the premise of not additionally increasing the occupied area of a road, and the safety is ensured. The utility model discloses still realized that highway road surface reforms transform into permeable pavement's drainage demand, the rainwater is from permeating water and gathering into the collector pipe, and in the rethread drain pipe got into the side ditch, realized highway road surface reforms transform into permeable pavement's drainage demand. When the water flow is larger, water on the road surface can directly enter the side ditch through the rainwater grate, and the drainage requirement when the water flow is larger is met. The utility model discloses construction simple process, the cost is low, and the time limit for a project is short than municipal drainage system.
The seal is arranged downwards to the side ditch slope that closes on respectively in road surface both sides, and then the level is arranged, arranges downwards along the side ditch inside wall is vertical again, prevents that the rainwater from further permeating the road bed, endangers the overall stability of road surface structure. The drain pipe sets up in the position corresponding with the rainwater grate, and the rainwater grate is lighter relative prefabricated apron quality, and it is easy that the manual work is opened, makes things convenient for the later maintenance that drainage system blockked up.
Drawings
Fig. 1 is a schematic plan view of an embodiment of the present invention.
Fig. 2 is a partial cross-sectional view of fig. 1 along the cover plate.
Fig. 3 is a sectional partial view along the rain water grate of fig. 1.
Reference numerals: the side ditch comprises a side ditch 1, a cover plate 11, a rainwater grate 12, a permeable layer 21, a seal coat 22, an asphalt concrete layer 23, a permeable layer 24, a base layer 25, an underlayer 26, a cushion coat 27, a compacted soil base layer 28, a road surface central line 31, a roadway edge line 32, a water collecting pipe 41, a drain pipe 42, a kerbstone 5 and a mortar cushion coat 51.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Like fig. 1 ~ 3, the utility model discloses the highway is reformed transform into the drainage structures of municipal water permeable pavement road, specifically is a road surface structure and drainage structures that reforms transform into municipal water permeable pavement road with current highway. The two sides of the road surface are respectively provided with a side ditch 1, and the side ditch 1 is the side ditch of the original road or is obtained by modifying the side ditch of the original road. The side ditch 1 comprises an inner side wall, an outer side wall and a bottom plate, the cross section of the side ditch 1 is U-shaped, and the inner side wall, the outer side wall and the bottom plate are made of integrally poured reinforced concrete. The side ditch 1 can be replaced by a prefabricated hoisting concrete side ditch. The underside of the bottom plate of the gutter 1 can be provided with a gutter cushion layer, and the top of the gutter 1 is sealed by a cover plate 11 and a rainwater grate 12, as shown in fig. 2 and 3. The cover plate 11 is a reinforced concrete precast slab, and can also be replaced by a composite material or a cast iron cover plate. The rainwater grate 12 is used for draining water when the water accumulated on the road surface is more, and the rainwater grate 12 is arranged at intervals along the side ditch 1. For example, the rain water grates 12 are arranged at equal intervals, the interval between two adjacent rain water grates 12 is 40m, the requirement of municipal road drainage specifications is met, the drainage and drainage functions of the original side ditches are utilized to the maximum extent, meanwhile, the cover plate 11 and the rain water grates 12 can be used as non-motor vehicles and pedestrian passages, and the effective area of the non-motor vehicles and the pedestrian passages is increased. The side ditches 1, the cover plates 11 and the rainwater grate 12 can be replaced by precast concrete or cast iron culvert pipes, but the replacement scheme has certain defects, such as blockage of the culvert pipes, and difficult later maintenance unless the pavement structure is damaged.
The top layer of road surface structure is permeable bed 21, makes the rainwater ability infiltration, realizes the permeable function on road surface, and permeable bed 21 is permeable formula asphalt concrete for example, and thickness is 4 cm. The next layer of permeable layer 21 is impervious seal 22, and seal 22 is used for preventing the water that permeates down from permeable layer 21 further to permeate other structural layer of lower part, avoids destroying the stability of road surface structure. For example, the seal 22 is an asphalt synchronous gravel seal with a thickness of 1cm, and the seal 22 may be an existing water-barrier material layer. The sealing layer 22 and the permeable layer 21 are obliquely arranged from the central line 31 of the road surface to two sides so as to meet the requirement of drainage. The lower side of the sealing layer 22 is provided with a base layer and a cushion layer which are structural layers of the original road. For example, referring to fig. 2 and 3, the pavement structure comprises a water permeable layer 21, a sealing layer 22, an asphalt concrete layer 23, a permeable layer 24, a base layer 25, an underlayer 26, a cushion layer 27 and a compacted soil base layer 28 from top to bottom, wherein the structural layer below the sealing layer 22 is the structural layer of the road. During the reconstruction construction, firstly, the pavement structure layer of the highway is broken, then the seal coat 22 and the permeable layer 21 are directly constructed, or the seal coat 22 and the permeable layer 21 are constructed after the permeable layer 24 and the asphalt concrete layer 23 are constructed, and the asphalt concrete layer 23 is common asphalt concrete.
Water collecting pipes 41 are embedded in the permeable layers 21 on the two sides of the road surface and on the upper surface of the sealing layer 22 and close to the side ditch 1, permeable holes are formed in the pipe walls of the water collecting pipes 41, the water collecting pipes 41 are connected with drain pipes 42 at intervals, and water outlets of the drain pipes 42 are located in the side ditch 1. The water collecting pipe 41 is used to collect the seeped water in the permeable layer 21 and is introduced into the gutter 1 through the water discharging pipe 42. The rainwater in the permeable layer 21 is collected by the water collecting pipe 41, and the collected rainwater enters the gutter 1 through the water discharging pipe 42. For example, the water collecting pipe 41 and the water discharging pipe 42 are both steel pipes, the pipe diameter is 60mm, the wall thickness is 4mm, water permeable holes with the diameter of 8mm are arranged on the surface of the steel pipes in a quincunx mode, and the distance is 15 cm. In addition, other high temperature resistant pipes can be used for the water collecting pipe 41 and the water discharging pipe 42. The drain pipe 42 is preferably provided at a position corresponding to the rain strainer 12 because the rain strainer 12 is light in weight relative to the cover plate 11, and is easily opened manually, thereby facilitating the later maintenance of the clogging of the drain system. The drainage pipe 42 guides the water in the route direction water collecting pipe 41 to the side ditch 1 of the road test, and then the water is drained to a drainage system of the current road, so that the normal drainage requirement of the whole road including a reconstruction section and a non-reconstruction section is met.
A kerb 5 is buried outside the gutter 1, a mortar bed 51 is provided at the bottom of the kerb 5, and the top surface of the kerb 5 is higher than the surface layer of the road surface structure. For example, the kerbstone 5 is C30 precast concrete, the kerbstone 5 is 20cm higher than the road surface, the kerbstone 5 is in a cuboid shape, the height is 35cm, the width is 15cm, the length of a straight line segment is 100cm, the length of a curved line segment is 50cm, and gaps between the kerbstone 5 and the edge of the road surface are filled with asphalt.
In order to improve the drainage effect of permeable bed 21, prevent simultaneously that the rainwater from permeating to the road bed, seal 22 is arranged downwards to the 1 slope of the side ditch that closes on respectively in road surface both sides, then the level is arranged, arrange downwards along 1 inside wall of side ditch is vertical again, seal 22 forms the slope district respectively, horizontal area and vertical district, the slope district is to basic unit 25, and the structural layer between basic unit 25 and the seal 22 forms the cladding, collector pipe 41 sets up the upper surface in the horizontal district under lane edge line 32, vertical district also has water-proof effects to the road surface structural layer.

Claims (10)

1. Highway reforms transform into the drainage structures of municipal administration permeable pavement road, and the both sides on road surface set up side ditch (1), its characterized in that respectively: the surface layer of the pavement structure is a permeable layer (21), the next layer of the permeable layer (21) is a waterproof sealing layer (22), the sealing layer (22) is obliquely arranged from the pavement midline (31) to two sides, and the lower side of the sealing layer (22) is provided with a base layer and a cushion layer; water collecting pipes (41) are buried in the permeable layers (21) on the two sides of the road surface and the upper surface of the sealing layer (22) and close to the side ditches (1), permeable holes are formed in the pipe walls of the water collecting pipes (41), the water collecting pipes (41) are connected with drain pipes (42) at intervals, water outlets of the drain pipes (42) are located in the side ditches (1), and the tops of the side ditches (1) are sealed through cover plates (11) and rainwater grates (12).
2. The drainage structure for reforming the road into the municipal water permeable pavement road according to claim 1, characterized in that: the pavement structure comprises a permeable layer (21), a sealing layer (22), a base layer, a cushion layer and a compacted soil base layer from top to bottom in sequence, wherein a structural layer below the sealing layer (22) is a structural layer of the highway.
3. The drainage structure for reforming the road into the municipal water permeable pavement road according to claim 1, characterized in that: the pavement structure sequentially comprises a permeable layer (21), a sealing layer (22), an asphalt concrete layer (23), a permeable layer (24), a base layer (25), an underlayer (26), a cushion layer (27) and a compacted soil base layer (28) from top to bottom, wherein a structural layer below the sealing layer (22) is a structural layer of the road.
4. The drainage structure for reforming the road into the municipal water permeable pavement road according to claim 1, characterized in that: seal (22) are arranged downwards to the slope of gutter (1) that closes on respectively in road surface both sides, then the level is arranged, again along the vertical downwards arrangement of gutter (1) inside wall, seal (22) form slope district, horizontal zone and vertical district respectively, the slope district forms the cladding to the basic unit and the structural layer between basic unit and seal (22), collector pipe (41) set up in the upper surface of horizontal zone.
5. A road according to any one of claims 1 to 4 reformed into a drainage structure for a municipal water permeable pavement road, characterized in that: the permeable layer (21) is permeable asphalt concrete, and the seal layer (22) is an asphalt synchronous macadam seal layer.
6. A road according to any one of claims 1 to 4 reformed into a drainage structure for a municipal water permeable pavement road, characterized in that: the water collecting pipe (41) is a steel pipe with a water permeable hole on the pipe wall, and the water discharging pipe (42) is also a steel pipe.
7. A road according to any one of claims 1 to 4 reformed into a drainage structure for a municipal water permeable pavement road, characterized in that: the side ditch (1) comprises an inner side wall, an outer side wall and a bottom plate, the cross section of the side ditch (1) is U-shaped, and the inner side wall, the outer side wall and the bottom plate are made of poured reinforced concrete.
8. A road according to any one of claims 1 to 4 reformed into a drainage structure for a municipal water permeable pavement road, characterized in that: curb (5) are buried underground to the outside of side ditch (1), and the bottom of curb (5) sets up mortar bed course (51), and the top surface of curb (5) is higher than the height on surface layer of road surface structure.
9. A road according to any one of claims 1 to 4 reformed into a drainage structure for a municipal water permeable pavement road, characterized in that: the drain pipe (42) is arranged at a position corresponding to the rainwater grate (12).
10. The water draining structure for the road reformed into the municipal water permeable pavement road according to claim 9, wherein: the rainwater grates (12) are arranged at equal intervals, and the interval between every two adjacent rainwater grates (12) is 40 m.
CN202021115689.XU 2020-06-16 2020-06-16 Drainage structure for modifying road into municipal water-permeable pavement road Active CN212714363U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021115689.XU CN212714363U (en) 2020-06-16 2020-06-16 Drainage structure for modifying road into municipal water-permeable pavement road

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021115689.XU CN212714363U (en) 2020-06-16 2020-06-16 Drainage structure for modifying road into municipal water-permeable pavement road

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Publication Number Publication Date
CN212714363U true CN212714363U (en) 2021-03-16

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