CN110485234A - A kind of reinforcement subgrade and pavement of anti-ponding - Google Patents
A kind of reinforcement subgrade and pavement of anti-ponding Download PDFInfo
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- CN110485234A CN110485234A CN201910807381.7A CN201910807381A CN110485234A CN 110485234 A CN110485234 A CN 110485234A CN 201910807381 A CN201910807381 A CN 201910807381A CN 110485234 A CN110485234 A CN 110485234A
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- water
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- permeable pipe
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
- E01C11/226—Coherent pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to the technical field of highway construction, especially a kind of reinforcement subgrade and pavement of anti-ponding.It includes the permeable reinforcement base course of asphalt paving layer, volcanic ash, anti-seepage geotextile water barrier and the ground stone layer being from top to bottom sequentially arranged, the top spaced set of anti-seepage geotextile water barrier has water-permeable pipe, several permeable holes are offered on water-permeable pipe, the tube head of water-permeable pipe is connected with water-supply-pipe, one end that water-supply-pipe is not connect with water-permeable pipe is connected to underwater, and the water-supply-pipe positioned at permeable pipe end is higher than the water surface.It can reduce the ponding on road surface, and make the water of lower infiltration that roadbed be smoothly discharged, so that the safety on roadbed and road surface has been ensured, but also the service life on roadbed and road surface can be longer.
Description
Technical field
The present invention relates to the technical field of highway construction, especially a kind of reinforcement subgrade and pavement of anti-ponding.
Background technique
Whether road surface and roadbed internal drainage are smooth, directly influence the integral strength of roadbed and pavement structure, thus shadow
Ring the bearing capacity and service life of highway.Road surface draining drops on road shoulder surface and road surface primarily to draining
Water, to reduce the harm of surface gathered water；Traditional subgrade and pavement is generally used and is drained to roadbed two sides gutter.So
And low-lying place caused by being rolled as road vehicles can still accumulate ponding, for a long time, these ponding can corrode road surface, make
At the damage on road surface and roadbed, many unfavorable factors are brought to highway tonnage capability and service life.
Summary of the invention
The object of the present invention is to provide a kind of reinforcement subgrade and pavements of anti-ponding, reduce the ponding on road surface, and make lower infiltration
Water roadbed is smoothly discharged, so that the safety on roadbed and road surface has been ensured, but also the service life on roadbed and road surface can be more
It is long.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:
A kind of reinforcement subgrade and pavement of anti-ponding, including asphalt paving layer, the volcanic ash being from top to bottom sequentially arranged
Permeable reinforcement base course, anti-seepage geotextile water barrier and ground stone layer, the top of the anti-seepage geotextile water barrier are equidistant
It is provided with water-permeable pipe, several permeable holes are offered on the water-permeable pipe, the tube head of the water-permeable pipe is connected with water-supply-pipe, described
One end that water-supply-pipe is not connect with water-permeable pipe is connected to underwater, and the water-supply-pipe positioned at permeable pipe end is higher than the water surface.
The reinforcement subgrade and pavement of anti-ponding above-mentioned, the water-supply-pipe are located at one end of water-permeable pipe relative to other end height
It is gradually reduced.
The reinforcement subgrade and pavement of anti-ponding above-mentioned, the permeable hole of the water-permeable pipe are opened in water-permeable pipe along the vertical direction
Top half.
The reinforcement subgrade and pavement of anti-ponding above-mentioned is coated with geotextiles on the water-permeable pipe.
The reinforcement subgrade and pavement of anti-ponding above-mentioned, the material of the water-permeable pipe are duroplasts.
The reinforcement subgrade and pavement of anti-ponding above-mentioned, the material of the water-supply-pipe are flexible plastic.
Compared with prior art, the invention has the beneficial effects that:
1) present invention reduces the ponding on road surface, and make the water of lower infiltration by providing a kind of reinforcement subgrade and pavement of anti-ponding
Roadbed is smoothly discharged, so that the safety on roadbed and road surface has been ensured, but also the service life on roadbed and road surface can be longer；
2) by the way that anti-seepage geotextile water barrier is arranged by the permeable reinforcement base course of asphalt paving layer, the volcanic ash of top
It is separated with the ground stone layer of lower section, so that the water on road surface can be from asphalt paving layer, the volcano for being easy to infiltration
It seeps under the permeable reinforcement base course of ash, and is isolated by anti-seepage geotextile water barrier, to be efficiently entering in water-permeable pipe, and be convenient for
It is discharged inside roadbed；
3) by the way that the tube head of water-permeable pipe is connected water-supply-pipe, one end that water-supply-pipe is not connect with water-permeable pipe is connected to the water surface
Under, the water-supply-pipe positioned at permeable pipe end is higher than the water surface so that the water seeped under road surface enters water-permeable pipe and water-supply-pipe, to water-permeable pipe and
After water in water-supply-pipe is filled, it will generate " siphonage ", the water in water-permeable pipe and water-supply-pipe can be continually output to
Water-supply-pipe is located at one end of the water surface, wherein due to from the permeable pressure for reinforcing base course of asphalt paving layer, volcanic ash and
From the permeable cladding for reinforcing base course, anti-seepage geotextile water barrier of volcanic ash, though approximation is remained to so that water-permeable pipe has gap
Regard integral conduit as, meeting the pipeline integrity requirement that " siphonage " generates in addition to this can be whole by inbuilt water-permeable pipe
It sees as at one by the water source formed that seeps water, is relatively close to and (is highly not much different) in atmospheric pressure, but roadbed internal pressure
In the case where being apparently higher than outside, and according to pascal's principle (P=ρ gh), water-permeable pipe is located at the height at roadbed and is higher than separately
The height of one end underwater, therefore " siphonage " will occur in the case where infiltration reaches water-permeable pipe connection；
4) it is arranged with respect to other end height by one end that water-supply-pipe is located at water-permeable pipe to be gradually reduced, so that instantly
When the water shortage of infiltration is to fill water-permeable pipe and water-supply-pipe, the water in water-permeable pipe and water-supply-pipe can also be flowed naturally by gravity
Out；
5) by the way that the permeable hole of water-permeable pipe to be provided with to the top half of vertical direction, water-permeable pipe lower half portion is maintained
Pipeline integrity is conducive to the water delivery of water-permeable pipe；
6) by coating geotextiles in the external of water-permeable pipe, so that water-permeable pipe has preferably handling capacity for lower infiltration,
But there is preferably insulating effect to other sundries such as soil, it ensure that the permanently effective of water-permeable pipe；
7) by setting hard material for water-permeable pipe, so that water-permeable pipe anti-pressure ability is stronger, be conducive to the length of water-permeable pipe
It uses long, is also beneficial to improve the service life on road surface and roadbed；By setting hose for water-supply-pipe, and water-supply-pipe is almost
Outside roadbed, the mainly relatively smaller earth pressure for needing to bear, therefore resistance to compression demand is smaller, so as to compared with
Pliability well is realized from the height being gradually reduced with water-permeable pipe junction.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
The meaning of appended drawing reference: 1, asphalt paving layer；2, the permeable reinforcement base course of volcanic ash；3, anti-seepage geotextile every
Water layer；4, ground stone layer；5, water-permeable pipe；6, permeable hole；7, water-supply-pipe.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Specific embodiment
The embodiment of the present invention 1: a kind of reinforcement subgrade and pavement of anti-ponding is constituted as shown in Figure 1, including suitable from top to bottom
The permeable reinforcement base course 2 of asphalt paving layer 1, the volcanic ash of secondary setting, anti-seepage geotextile water barrier 3 and ground stone layer 4,
The top spaced set of the anti-seepage geotextile water barrier 3 has water-permeable pipe 5, and it is permeable to offer several on the water-permeable pipe 5
Hole 6, the tube head of the water-permeable pipe 5 are connected with water-supply-pipe 7, and one end that the water-supply-pipe 7 is not connect with water-permeable pipe 5 is connected to the water surface
Under, the water surface, which can be, has gutter or rainwater impoundment dedicated of water etc. throughout the year, even usually dry gutter, when rainy,
Ditch water level rises, and can also meet water level requirement herein, and the water-supply-pipe 7 positioned at 5 end of water-permeable pipe is higher than the water surface and passes through setting
Anti-seepage geotextile water barrier 3 by asphalt paving layer 1, the volcanic ash of top it is permeable reinforce base course 2 and lower section ground foundation stone
The bed of material 4 is separated, so that the water on road surface can be from asphalt paving floor 1, the permeable reinforcement road of volcanic ash for being easy to infiltration
Base 2 is lower to seep, and is isolated by anti-seepage geotextile water barrier 3, to be efficiently entering in water-permeable pipe 5, and convenient for discharge roadbed
It is internal.
By the way that the tube head of water-permeable pipe 5 is connected water-supply-pipe 7, one end that water-supply-pipe 7 is not connect with water-permeable pipe 5 is connected to the water surface
Under, the water-supply-pipe 7 positioned at 5 end of water-permeable pipe is higher than the water surface, so that the water seeped under road surface enters water-permeable pipe 5 and water-supply-pipe 7, to permeable
After water in pipe 5 and water-supply-pipe 7 is filled, it will generate " siphonage ", the water in water-permeable pipe 5 and water-supply-pipe 7 can in a steady stream not
It is disconnected to be output to one end that water-supply-pipe 7 is located at the water surface, wherein due to coming from asphalt paving layer 1, the permeable reinforcement roadbed of volcanic ash
Layer 2 pressure and from volcanic ash it is permeable reinforce base course 2, anti-seepage geotextile water barrier 3 cladding, though so that water-permeable pipe 5 has
Gap, but remain to approximation and regard integral conduit as, meet the pipeline integrity requirement that " siphonage " generates；In addition to this, it can incite somebody to action
Inbuilt every water-permeable pipe 5 is considered collectively as at one being relatively close to and (highly being differed not in atmospheric pressure by the water source formed that seeps water
Greatly), but in the case that roadbed internal pressure is apparently higher than outside, and according to pascal's principle (P=ρ gh), water-permeable pipe 5
Height at roadbed is higher than the height of other end underwater, and therefore " siphonage " reaches the feelings of 5 connection of water-permeable pipe in infiltration
It will occur under condition.
The permeable hole 6 of the water-permeable pipe 5 is opened in the top half of water-permeable pipe 5 along the vertical direction, by by water-permeable pipe 5
Permeable hole 6 is provided with the top half of vertical direction, maintains the pipeline integrity of 5 lower half portion of water-permeable pipe, is conducive to permeable
The water delivery of pipe 5.
Geotextiles are coated on the water-permeable pipe 5, by coating geotextiles in the external of water-permeable pipe 5, so that water-permeable pipe 5 is right
There is preferably handling capacity in lower infiltration, but there is preferably insulating effect to other sundries such as soil, ensure that water-permeable pipe 5
It is permanently effective.
The material of the water-permeable pipe 5 is duroplasts, and the material of the water-supply-pipe 7 is flexible plastic, by the way that water-permeable pipe 5 to be arranged
Be conducive to being used for a long time for water-permeable pipe 5 so that 5 anti-pressure ability of water-permeable pipe is stronger for hard material, be also beneficial to improve road surface and
The service life of roadbed；By setting hose for water-supply-pipe 7, and water-supply-pipe 7 is nearly seated at outside roadbed, needs to bear
Mainly relatively smaller earth pressure, therefore resistance to compression demand is smaller, so as to preferably pliability, realize from it is permeable
The height that 5 junction of pipe is gradually reduced.
Embodiment 2: a kind of reinforcement subgrade and pavement of anti-ponding is constituted as shown in Figure 1, including from top to bottom being sequentially arranged
The permeable reinforcement base course 2 of asphalt paving layer 1, volcanic ash, anti-seepage geotextile water barrier 3 and ground stone layer 4, the antiseepage
The top spaced set of geotextiles water barrier 3 has water-permeable pipe 5, several permeable holes 6 are offered on the water-permeable pipe 5, described
The tube head of water-permeable pipe 5 is connected with water-supply-pipe 7, and one end that the water-supply-pipe 7 is not connect with water-permeable pipe 5 is connected to underwater, the water surface
Can be has gutter or rainwater impoundment dedicated of water etc. throughout the year, even usually dry gutter, when rainy, and ditch water level
Rise, water level requirement herein can also be met, the water-supply-pipe 7 positioned at 5 end of water-permeable pipe is higher than the water surface and passes through setting antiseepage geotechnique
Cloth water barrier 3 carries out the permeable reinforcement base course 2 of asphalt paving layer 1, the volcanic ash of top and the ground stone layer 4 of lower section
Separation, so that the water on road surface can be seeped from the asphalt paving layer 1, the permeable reinforcement base course 2 of volcanic ash for being easy to seep water are lower,
And be isolated by anti-seepage geotextile water barrier 3, to be efficiently entering in water-permeable pipe 5, and convenient for being discharged inside roadbed.
By the way that the tube head of water-permeable pipe 5 is connected water-supply-pipe 7, one end that water-supply-pipe 7 is not connect with water-permeable pipe 5 is connected to the water surface
Under, the water-supply-pipe 7 positioned at 5 end of water-permeable pipe is higher than the water surface, so that the water seeped under road surface enters water-permeable pipe 5 and water-supply-pipe 7, to permeable
After water in pipe 5 and water-supply-pipe 7 is filled, it will generate " siphonage ", the water in water-permeable pipe 5 and water-supply-pipe 7 can in a steady stream not
It is disconnected to be output to one end that water-supply-pipe 7 is located at the water surface, wherein due to coming from asphalt paving layer 1, the permeable reinforcement roadbed of volcanic ash
Layer 2 pressure and from volcanic ash it is permeable reinforce base course 2, anti-seepage geotextile water barrier 3 cladding, though so that water-permeable pipe 5 has
Gap, but remain to approximation and regard integral conduit as, meet the pipeline integrity requirement that " siphonage " generates；In addition to this, it can incite somebody to action
Inbuilt every water-permeable pipe 5 is considered collectively as at one being relatively close to and (highly being differed not in atmospheric pressure by the water source formed that seeps water
Greatly), but in the case that roadbed internal pressure is apparently higher than outside, and according to pascal's principle (P=ρ gh), water-permeable pipe 5
Height at roadbed is higher than the height of other end underwater, and therefore " siphonage " reaches the feelings of 5 connection of water-permeable pipe in infiltration
It will occur under condition.
One end that the water-supply-pipe 7 is located at water-permeable pipe 5 is gradually reduced relative to other end height, by by water-supply-pipe 7
It is arranged with respect to other end height in one end of water-permeable pipe 5 to be gradually reduced, so that the water shortage seeped instantly is permeable to fill
When pipe 5 and water-supply-pipe 7, the water in water-permeable pipe 5 and water-supply-pipe 7 can also be flowed out naturally by gravity.
The permeable hole 6 of the water-permeable pipe 5 is opened in the top half of water-permeable pipe 5 along the vertical direction, by by water-permeable pipe 5
Permeable hole 6 is provided with the top half of vertical direction, maintains the pipeline integrity of 5 lower half portion of water-permeable pipe, is conducive to permeable
The water delivery of pipe 5.
Geotextiles are coated on the water-permeable pipe 5, by coating geotextiles in the external of water-permeable pipe 5, so that water-permeable pipe 5 is right
There is preferably handling capacity in lower infiltration, but there is preferably insulating effect to other sundries such as soil, ensure that water-permeable pipe 5
It is permanently effective.
The material of the water-permeable pipe 5 is duroplasts, and the material of the water-supply-pipe 7 is flexible plastic, by the way that water-permeable pipe 5 to be arranged
Be conducive to being used for a long time for water-permeable pipe 5 so that 5 anti-pressure ability of water-permeable pipe is stronger for hard material, be also beneficial to improve road surface and
The service life of roadbed；By setting hose for water-supply-pipe 7, and water-supply-pipe 7 is nearly seated at outside roadbed, needs to bear
Mainly relatively smaller earth pressure, therefore resistance to compression demand is smaller, so as to preferably pliability, realize from it is permeable
The height that 5 junction of pipe is gradually reduced.
The working principle of the invention:
The present invention is by by asphalt paving layer 1, the permeable reinforcement base course 2 of volcanic ash, anti-seepage geotextile water barrier 3
It is from top to bottom sequentially arranged with ground stone layer 4, and in the top spaced set water-permeable pipe 5 of anti-seepage geotextile water barrier 3, institute
State and offer several permeable holes 6 on water-permeable pipe 5, the tube head of the water-permeable pipe 5 is connected with water-supply-pipe 7, the water-supply-pipe 7 not with
One end that water-permeable pipe 5 connects is connected to underwater, and the water-supply-pipe 7 positioned at 5 end of water-permeable pipe is higher than the water surface, to reduce road surface
Ponding, and make the water of lower infiltration that roadbed be smoothly discharged, to ensure the safety on roadbed and road surface, but also roadbed and road surface
Service life can be longer.By the way that anti-seepage geotextile water barrier 3 is arranged by the asphalt paving layer 1 of top, fire in the present invention
Mountain permeable the reinforcements base course 2 of ash is separated with the ground stone layer 4 of lower section, so that the water on road surface can be from being easy to infiltration
The permeable reinforcement base course 2 of asphalt paving layer 1, volcanic ash is lower to be seeped, and is isolated by anti-seepage geotextile water barrier 3, thus
It is efficiently entering in water-permeable pipe 5, and convenient for being discharged inside roadbed；By the way that the tube head of water-permeable pipe 5 is connected water-supply-pipe 7, water-supply-pipe 7 is not
The one end connecting with water-permeable pipe 5 is connected to underwater, and the water-supply-pipe 7 positioned at 5 end of water-permeable pipe is higher than the water surface, so that seeped under road surface
Water enters water-permeable pipe 5 and water-supply-pipe 7, after filling to the water in water-permeable pipe 5 and water-supply-pipe 7, it will generates " siphonage ", thoroughly
Water in water pipe 5 and water-supply-pipe 7 can continually be output to one end that water-supply-pipe 7 is located at the water surface, wherein due to coming from permeable drip
Green supercrust 1, volcanic ash it is permeable reinforce base course 2 pressure and from the permeable reinforcement base course 2 of volcanic ash, anti-seepage geotextile every
The cladding of water layer 3 meets the pipe that " siphonage " generates though remaining to approximation and regarding integral conduit as so that water-permeable pipe 5 has gap
In addition to this inbuilt every water-permeable pipe 5 can be considered collectively as at one by the water source formed that seeps water, In by road integrity demands
Atmospheric pressure is relatively close to and (is highly not much different), but in the case that roadbed internal pressure is apparently higher than outside, and according to
Pascal's principle (P=ρ gh), water-permeable pipe 5 are located at the height that the height at roadbed is higher than other end underwater, and therefore " siphon is existing
As " will occur in the case where infiltration reaches 5 connection of water-permeable pipe；It is set as by one end that water-supply-pipe 7 is located at water-permeable pipe 5
It is gradually reduced relative to other end height, when so that the water shortage seeped instantly is filling water-permeable pipe 5 and water-supply-pipe 7, water-permeable pipe 5
It can also be flowed out naturally by gravity with the water in water-supply-pipe 7；By the way that the permeable hole 6 of water-permeable pipe 5 is provided with vertical direction
Top half maintains the pipeline integrity of 5 lower half portion of water-permeable pipe, is conducive to the water delivery of water-permeable pipe 5；By in water-permeable pipe 5
It is external coat geotextiles so that water-permeable pipe 5 has preferably handling capacity for lower infiltration, but have to other sundries such as soil
There is preferably insulating effect, ensure that the permanently effective of water-permeable pipe 5；By setting hard material for water-permeable pipe 5, so that permeable
5 anti-pressure ability of pipe is stronger, is conducive to being used for a long time for water-permeable pipe 5, is also beneficial to improve the service life on road surface and roadbed；Pass through
Hose is set by water-supply-pipe 7, and water-supply-pipe 7 is nearly seated at outside roadbed, the mainly relatively smaller soil for needing to bear
Stressor layer, therefore resistance to compression demand is smaller, so as to realize and be gradually reduced certainly with 5 junction of water-permeable pipe with preferably pliability
Height.
Claims (6)
1. a kind of reinforcement subgrade and pavement of anti-ponding, which is characterized in that including the asphalt paving being from top to bottom sequentially arranged
Layer (1), the permeable reinforcement base course (2) of volcanic ash, anti-seepage geotextile water barrier (3) and ground stone layer (4), the antiseepage geotechnique
The top spaced set of cloth water barrier (3) has water-permeable pipe (5), several permeable holes (6) are offered on the water-permeable pipe (5),
The tube head of the water-permeable pipe (5) is connected with water-supply-pipe (7), and one end that the water-supply-pipe (7) does not connect with water-permeable pipe (5) is connected to
Underwater, the water-supply-pipe (7) positioned at water-permeable pipe (5) end are higher than the water surface.
2. the reinforcement subgrade and pavement of anti-ponding according to claim 1, which is characterized in that the water-supply-pipe (7) is located at saturating
One end of water pipe (5) is gradually reduced relative to other end height.
3. the reinforcement subgrade and pavement of anti-ponding according to claim 1 or 2, which is characterized in that the water-permeable pipe (5) it is saturating
Water hole (6) is opened in the top half of water-permeable pipe (5) along the vertical direction.
4. the reinforcement subgrade and pavement of anti-ponding according to claim 3, which is characterized in that coated on the water-permeable pipe (5)
There are geotextiles.
5. the reinforcement subgrade and pavement of anti-ponding according to claim 4, which is characterized in that the material of the water-permeable pipe (5)
For duroplasts.
6. the reinforcement subgrade and pavement of anti-ponding according to claim 5, which is characterized in that the material of the water-supply-pipe (7)
For flexible plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910807381.7A CN110485234A (en) | 2019-08-29 | 2019-08-29 | A kind of reinforcement subgrade and pavement of anti-ponding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910807381.7A CN110485234A (en) | 2019-08-29 | 2019-08-29 | A kind of reinforcement subgrade and pavement of anti-ponding |
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| CN110485234A true CN110485234A (en) | 2019-11-22 |
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| CN201910807381.7A Pending CN110485234A (en) | 2019-08-29 | 2019-08-29 | A kind of reinforcement subgrade and pavement of anti-ponding |
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| CN110924257A (en) * | 2019-12-05 | 2020-03-27 | 东莞嘉誉诚建设基础工程有限公司 | Municipal road, pouring template for construction of municipal road and construction method of pouring template |
| CN111379202A (en) * | 2020-03-24 | 2020-07-07 | 王文超 | Prevent enhancement road bed road surface of ponding |
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| CN110924257B (en) * | 2019-12-05 | 2021-08-03 | 东莞嘉誉诚建设基础工程有限公司 | A municipal road, a pouring formwork for its construction and its construction method |
| CN111379202A (en) * | 2020-03-24 | 2020-07-07 | 王文超 | Prevent enhancement road bed road surface of ponding |
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