CN110042723B - Construction method of full-prefabricated assembled permeable road - Google Patents

Construction method of full-prefabricated assembled permeable road Download PDF

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Publication number
CN110042723B
CN110042723B CN201910355104.7A CN201910355104A CN110042723B CN 110042723 B CN110042723 B CN 110042723B CN 201910355104 A CN201910355104 A CN 201910355104A CN 110042723 B CN110042723 B CN 110042723B
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construction
road
layer
permeable
baffle
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CN110042723A (en
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陈小林
朱凯
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Zhiyong Construction Group Co.,Ltd.
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Zhiyong Construction Group Co ltd
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/22Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224Surface drainage of streets
    • E01C11/225Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/005Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like

Abstract

The invention relates to a construction method of a fully-prefabricated assembled permeable road, which is characterized by comprising the following steps of: the construction steps comprise roadbed pretreatment, lower baffle construction, subbase construction, upper baffle construction, water-proof layer and base construction, perforated brick installation, concrete edge sealing construction, kerbstone installation construction, hidden drainage system construction, permeable layer construction and pavement slab laying. By adopting the construction method of the fully prefabricated assembled permeable road, which is disclosed by the invention, the structures are produced in a prefabricated field, the construction is carried out in an assembled mode, the construction process is simple, the construction speed is high, and the constructed road surface has better water permeability and drainage performance.

Description

Construction method of full-prefabricated assembled permeable road
Technical Field
The invention relates to the technical field of municipal road construction, in particular to a construction method of a fully-prefabricated assembled permeable road, which is suitable for municipal road engineering with a road base layer and a road surface layer both having water permeability design, and is particularly suitable for the municipal road engineering with a shorter construction period.
Background
In traditional light-load road engineering, a cast-in-place mode is often adopted, and because the construction quantity of the construction engineering on-site roads is large, a large amount of construction waste can be generated, so that the resource waste is caused, and the difficulty in realizing the purposes of energy conservation and emission reduction is increased. How to construct and construct the municipal pedestrian road under the 'four sections one environment protection', and effectively realizing the energy conservation and the environment protection of the urban building is the most important of the municipal pedestrian road in the same day.
The traditional city construction mode is that the hardened pavement is everywhere. In heavy rain, water is drained mainly by means of 'grey' facilities such as pipe ducts and pump stations, and the phenomenon that water is needed when rain falls and the phenomenon that water is needed when drought and water fall is caused suddenly is often caused; the driving danger is caused by the water accumulated on the road surface, and the service life of the road surface is influenced when the rainwater permeates into the interior of the non-drainage road surface structure; drainage road construction is beginning to be carried out in more and more cities. How to coordinate and fuse the surrounding environment is an important aspect of the construction of the sponge city by using the permeable road as the advocated development of the sponge city in China, and the permeable road is widely applied to the actual engineering.
At present, the drainage performance of the traditional road is still insufficient, the problem of water seepage of a base course is caused, the water control effect is seriously influenced, and the service performance and the service life of the road surface can be reduced by long-term water accumulation of the base course. During the road, because the mixture impacts to the outside when rolling subbase, influences its closely knit degree, influences the bearing capacity of road, and the construction of road still has the slow problem of construction speed.
Disclosure of Invention
The invention aims to provide a construction method of a fully prefabricated assembled permeable road aiming at the problems of difficult drainage, low roadbed bearing capacity, low construction speed and the like of a traditional road cast-in-place structure, so as to solve the problems that a cast-in-place road is greatly influenced by the environment and the road drainage is difficult.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention relates to a construction method of a fully-prefabricated assembled permeable road, which is characterized by comprising the following steps:
s1: preprocessing a roadbed;
s2: installing a lower baffle;
s3: laying a base layer and rolling;
s4: inserting the connecting rib into the lower baffle body, coating waterproof mortar on the upper surface of the lower baffle body, and closely sealing the upper baffle body with the lower baffle body in alignment with the connecting rib;
s5: a base is laid on the inner side of the upper baffle body, water-proof geotextile is laid on the upper surfaces of the base layer and the base, and a water-proof leveling layer is laid on the part, located between the bases, of the upper surface of the water-proof geotextile to form a water-proof layer;
s6: laying a geogrid on the waterproof leveling layer, laying perforated bricks in sections to form a perforated brick layer, and turning up two sides of the geogrid and wrapping the sides of the perforated brick layer;
s7: erecting a formwork on two sides of the porous brick layer, and pouring concrete for sealing edges;
s8: pouring a mortar cushion layer on the upper baffle body, and installing a curb;
s9: the drainage pipe is placed on the base, graded broken stones are filled in a gap between the concrete edge sealing and the kerb stone, and compaction is carried out to form a dark drainage system;
s10: paving permeable geotextile between the kerbs on the two sides, and sequentially paving a broken stone drainage base layer and a permeable leveling layer on the permeable geotextile to form a permeable layer;
s11: the pavement slab is paved to form a pavement structure, the pavement slab is provided with a filler seam which is communicated up and down, and the filler seam is filled with a permeable medium.
Preferably, the pretreatment of the road base in S1 includes cleaning the surface of the road base and rolling the road base.
Preferably, in S2, before the lower barrier is constructed, construction paying-off is performed, a total station is used for fixed-point lofting when the lower barrier is installed, checking and adjusting at any time, measuring a check center line, and rechecking the elevation.
Preferably, in S3, when laying the base layer, the ABG spreader is used to spread and shape the uniformly mixed mixture according to a predetermined cross slope, and after spreading and leveling, rolling is performed immediately in the full width range.
Preferably, geogrid among S6 is taut when laying, and is stretched out, avoids pincher trees, distortion or hollow, and the overlap joint width between two geogrids is 40cm, and the upwarp section is reserved to the geogrid both sides, and the geogrid adopts U type nail to fix in soil and tensioning, and U type nail interval is 1.5m, and the branch of porous brick is spread and is accomplished through many machines, should guarantee that four inclined planes of porous brick and the corresponding inclined plane of adjacent porous brick laminate each other during laying, porous brick be the trapezium structure.
Preferably, in step 7, before the concrete edge sealing is performed, a bracket is installed on the base and the formwork is fixed, the gap between the perforated brick and the formwork is sealed by C20 concrete, and the geogrid is raised to the middle position of the concrete edge sealing.
Preferably, in S8, the mortar pad has a thickness of 3 cm.
Preferably, in S9, the graded broken stone filling height is equal to the height of the perforated brick.
Preferably, in S10, the permeable geotextiles should be stretched tightly to avoid creasing, twisting or potholing when being laid, and the lap width between two permeable geotextiles is not less than 50 cm.
Preferably, one side of the road deck used in S11 is provided with a protrusion, and the side opposite to the side provided with the protrusion is provided with a recess, and during splicing, the protrusion of one road deck is inserted into the recess of the adjacent road deck to complete the engagement.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) in the process of rolling the mixture of the subbase layer, the lower baffle body is used as a template of the edge part of the base layer to resist the external impact force acted on the mixture of the base layer in the operation of the vibratory roller and limit the compression displacement of the mixture of the base layer, so that the detection qualification rate of the compactness of the edge part of the base layer is ensured.
(2) After the road base layer mixture is rolled, the curb stone can be installed on the concrete baffle body by organizing the coordinators, the embarrassing situation that the maintenance period of the road base layer and the treatment measures of the curb stone base groove cannot be carried out simultaneously is avoided, and the time investment is reduced from the aspect of construction technology.
(3) The porous bricks are assembled in a fitting mode, the bottom surface and the side surfaces of the base layer are wrapped by the geogrids, and then the road base layer structure formed by the bonding materials is poured into gaps on the side surfaces of the porous bricks, so that the characteristic of high concrete strength is fully exerted, the bearing requirements and the durability requirements of a road bearing layer are met, the service performance of a road surface is improved, and the service life of the road surface is prolonged.
(4) The porous brick layer and the permeable medium surface layer are combined with the gravel drainage base layer to reasonably collect and discharge rainwater, so that the road has the functions of seepage, stagnation, storage, purification, use and drainage, and the design concept of a sponge city is met.
(5) The road slab and the perforated bricks are all prefabricated, the site construction process is simple and convenient, the operation is easy, the whole splicing is realized, the environment is protected, and the construction cost is saved.
(6) The waterproof geotextile and the waterproof leveling layer are arranged above the subbase layer, so that the subbase layer is ensured not to be permeated, and the comprehensive water control effect of permeation-drainage-waterproof is realized.
(7) Through setting up the geotechnological cloth that permeates water, the fine grain silt of interception upper strata except that the water only permeates the lower floor to the water on upper strata, guarantees that the passageway that permeates water is smooth and easy.
Drawings
FIG. 1 is a schematic structural diagram of a fully prefabricated assembled type permeable road and a construction method;
FIG. 2 is a schematic diagram of a pavement slab construction;
FIG. 3 is a schematic view of the pavement slab structure A-A of FIG. 2;
FIG. 4 is a schematic view of a structure of a water-permeable medium filled in a road slab;
FIG. 5 is a schematic structural view of step two;
FIG. 6 is a schematic view of a three-step structure;
FIG. 7 is a schematic view of the structure of step four;
FIG. 8 is a schematic view of a sixth construction step;
FIG. 9 is a schematic view of the completion of the construction in step six;
FIG. 10 is a schematic diagram of a seventh configuration;
FIG. 11 is a schematic structural view of step eight;
FIG. 12 is a schematic view of the structure of step nine;
FIG. 13 is a schematic view of a tenth step;
FIG. 14 is a schematic diagram of the structure of step eleven.
Illustration of the drawings: 1. the concrete foundation comprises a roadbed, 2 parts of a subbase layer, 3 parts of water-proof geotextile, 4 parts of water-proof leveling layer, 5 parts of geogrid, 6 parts of a baffle body, 601 parts of a lower baffle body, 602 parts of an upper baffle body, 603 parts of connecting ribs, 7 parts of a pavement slab, 701 parts of protrusions, 702 parts of recesses, 703 parts of a filler gap, 8 parts of a water-permeable medium, 9 parts of a base, 10 parts of a drain pipe, 11 parts of graded broken stones, 12 parts of a concrete edge sealing, 13 parts of a mortar cushion layer, 14 parts of curb stones, 15 parts of porous bricks, 16 parts of a bonding material, 17 parts of water-permeable geotextile, 1801 parts of a template, 1802 parts of a support, 19 parts of a broken stone drainage base layer and 20 parts of.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
Referring to the attached drawing 1, the invention relates to a fully-prefabricated assembled permeable road, which comprises a roadbed 1, a subbase layer 2, a perforated brick layer, a gravel drainage base layer 19 and a pavement structure layer.
The two sides of the roadbed 1 are provided with a baffle 6 and a curb 14 from bottom to top, the baffle 6 comprises a lower baffle 601 and an upper baffle 602, the lower baffle 601 and the upper baffle 602 are connected with each other through a connecting rib 603, the connecting rib 603 adopts a steel bar with the diameter of 12mm, and the length of the steel bar is 40 cm; the baffle 6 and the curb 14 are bonded through a 3cm thick mortar cushion 13.
The subgrade 2 is laid at the position, located between the retaining bodies 6 on the two sides, above the roadbed 1, the upper surfaces of the two sides of the subgrade 2 are provided with bases 9, the upper surfaces of the bases 9 and the subgrade 2 are covered with water-proof geotextile 3, the water-proof geotextile 3 is made of polyethylene materials, the thickness is 0.2-3.0mm, the upper surface of the water-proof geotextile 3 located between the bases 9 on the two sides is covered with a water-proof leveling layer 4, and the water-proof leveling layer 4 is made of P8-grade impervious concrete.
The perforated brick layer is laid on the water-proof leveling layer 4 and comprises a plurality of perforated bricks 15 which are arranged side by side, adjacent perforated bricks 15 are bonded through a bonding material 16, the bonding material 16 is pervious concrete, the perforated bricks 15 are of a trapezoidal structure, the bottom surface and the periphery of the perforated brick layer are wrapped with geogrids 5, the lap joint width between the two geogrids 5 is 40cm, upwarp sections are reserved at the edges, the geogrids are fixed in soil and tensioned through U-shaped nails, and the distance between the U-shaped nails is 1.5m multiplied by 1.5 m.
The upper surface of base 9 has laid drain pipe 10 and graded rubble 11, and drain pipe 10 buries in graded rubble 11, and graded rubble 11 top surface flushes with porous brick layer top surface to the compaction, has the space between graded rubble 11 and the porous brick layer, and space department fills there is concrete banding 12.
And a permeable geotextile 17 is laid above the porous brick layer, the lap joint width between the two permeable geotextiles 17 is not less than 50cm, a macadam drainage base layer 19 and a permeable leveling layer 20 are sequentially laid on the permeable geotextile 17, and the permeable leveling layer 20 is made of permeable concrete.
The pavement structure layer lay on the leveling layer 20 that permeates water, the pavement structure layer is formed by a plurality of pavement boards 7 concatenation, the structure of pavement board 7 is as shown in figure 2 ~ 4, pavement board 7 is inside to be equipped with the filler seam 703 that link up from top to bottom, is equipped with protruding 701 on one of them side of pavement board 7, and is equipped with concave part 702 on the side opposite with setting up protruding 701 one side, wherein the protruding 701 of a pavement board 7 inserts in the concave part 702 of adjacent pavement board 7, the filler seam 703 is filled with permeable medium 8, and permeable medium 8 is the concrete that possesses better water permeability, and permeable medium 8 bottom and the leveling layer 20 that permeates water communicate.
By adopting the fully prefabricated assembled permeable road, rainwater permeates into the permeable leveling layer 20 from the permeable medium 8 and continues to permeate into the gravel drainage base layer 19 when raining, and finally the rainwater is drained into the drain pipe 10 through the graded gravel 11 on the two sides and is drained, so that the rainwater on the road surface can be smoothly drained; and water-proof geotechnical cloth 3 and water-proof screed-coat 4 have been laid to the upper surface of subbase 2, carry out the separation to the rainwater, prevent that the rainwater from getting into subbase 2, guarantee subbase 2's stability, the life of extension road.
The fully prefabricated assembled permeable road and the construction method have the following construction steps:
step one, roadbed pretreatment: after clearing the surface, carrying out rolling treatment on the roadbed 1 substrate;
step two, as shown in the attached fig. 5, the lower stopper 601 is constructed: a pile is longitudinally arranged on the roadbed 1 every 10m, a flat curve section is provided with a pile (the pile is not shown in the figure) every 5m, the piles are used for limiting the outward movement of the blocking body 6, the lower blocking body 601 is installed according to the construction paying-off position, a total station instrument is adopted for fixed-point lofting, checking and adjusting at any time, and finally the center line is measured and checked, and the elevation is rechecked.
And step three, combining the figure 6 to construct the subbase layer 2: paving and shaping the uniformly mixed mixture on the roadbed 1 according to a specified cross slope by using an ABG (anaerobic baffled concrete) paver, and immediately rolling within the full width range after paving and leveling.
Step four, combining the structure shown in fig. 7, the upper baffle 602 is constructed: the connecting rib 603 is inserted into the lower baffle 601, and waterproof mortar is coated on the upper surface of the lower baffle 601, and the upper baffle 602 is aligned with the connecting rib 603 and is tightly fit with the lower baffle 601.
And step five, combining the structure shown in the attached figure 8, and constructing a water resisting layer and a base 9: the base 9 is laid in the space reserved on the inner side of the upper blocking body 602, a prepared position is provided for the installation of a drain pipe, the waterproof geotextile 3 is laid on the upper surfaces of the base layer 2 and the base 9, the waterproof leveling layer 4 is laid on the waterproof geotextile 3, and the coverage range is the upper surface of the whole base layer 2.
Step six, combining the figure 9 to install the perforated brick 15: the geogrid 5 is laid on the waterproof layer, the geogrid 5 is tightened and stretched when laid, wrinkles, distortion or hollow are avoided, the overlapping width between the two geogrids 5 is 40cm, upwarp sections are reserved at the edges, the geogrids are fixed in soil and tensioned by U-shaped nails, the distance is 1.5m multiplied by 1.5m, the perforated bricks 15 are laid by multiple mechanical sections, the four inclined planes are guaranteed to be mutually attached to the corresponding inclined planes of the adjacent perforated bricks 15 when laid, and the attaching positions are sealed by bonding materials 16.
Seventhly, combining the construction of the concrete edge sealing 12 shown in the attached drawing 10: the formwork 1801 is fixed on the base 9 by matching with a bracket 1802, the gap between the perforated brick 15 and the formwork 1801 is sealed by C20 concrete, and the geogrid 5 is raised to the middle position of the concrete sealed edge.
Step eight, the installation and construction of the kerbstone 14 are carried out by combining the steps shown in the attached drawing 11: and pouring a 3cm thick mortar cushion layer 13 on the upper baffle body 602, and installing a curb 14.
Ninth, combine and show in figure 12, carry on the construction of the dark drainage system: after the concrete edge sealing 12 has the form removal strength, the form 1801 and the support 1802 are removed, the drain pipe 10 is placed on the base 9, graded broken stones 11 are filled between the concrete edge sealing 12 and the curb 14, the filling height of the graded broken stones 11 is equal to the height of the perforated bricks 15, and compaction is carried out.
Step ten, combining the attached drawing 13 to construct a permeable layer: the permeable geotextile 17 is laid between the kerbs 14 on the two sides, the permeable geotextile is tightened and stretched during laying, so that wrinkles, distortion or potholes are avoided, the lap joint width between the two permeable geotextile 17 is not less than 50cm, and the gravel drainage base layer 19 and the permeable leveling layer 20 are laid on the permeable geotextile 17 in sequence.
Step eleven, paving the road slab 7 by combining the steps shown in the attached drawing 14: according to the design drawing, the pavement of the pavement slab 7 is paved in accordance with the design pattern starting from the reference point with the reference line as a reference. The projections 701 of the road deck are inserted into the recesses 702 of the adjacent road decks 7, and are sequentially laid, and after the road decks 7 are laid, the filling gaps 703 are filled with the water-permeable medium 8.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (10)

1. A construction method of a fully prefabricated assembled permeable road is characterized by comprising the following steps:
s1: pretreating the roadbed (1);
s2: installing a lower baffle body (601);
s3: laying an underlayer (2) and rolling;
s4: inserting the connecting rib (603) into the lower baffle body (601), coating waterproof mortar on the upper surface of the lower baffle body (601), and closely fitting the upper baffle body (602) with the lower baffle body (601) in alignment with the connecting rib (603);
s5: a base (9) is laid on the inner side of the upper baffle body (602), waterproof geotextile (3) is laid on the upper surfaces of the base layer (2) and the base (9), and a waterproof leveling layer (4) is laid on the part, located between the bases (9), of the upper surface of the waterproof geotextile (3) to form a waterproof layer;
s6: a geogrid (5) is laid on the waterproof leveling layer (4), perforated bricks (15) are laid in sections to form a perforated brick layer, and two sides of the geogrid (5) are turned up and wrap the sides of the perforated brick layer;
s7: erecting a formwork on two sides of the porous brick layer and pouring concrete edge sealing (12);
s8: pouring a mortar cushion layer (13) on the upper baffle body (602), and installing a curb stone (14);
s9: the drainage pipe (10) is placed on the base (9), graded broken stones (11) are filled in a gap between the concrete sealing edge (12) and the curb stone (14), and compaction is carried out to form a dark drainage system;
s10: a permeable geotextile (17) is laid between the kerbs (14) on the two sides, and a gravel drainage base layer (19) and a permeable leveling layer (20) are sequentially laid on the permeable geotextile (17) to form a permeable layer;
s11: the pavement slab (7) is paved to form a pavement structure, the pavement slab (7) is provided with a filler seam (703) which is communicated up and down, and the filler seam (703) is filled with a permeable medium (8).
2. The construction method of the fully prefabricated assembled type permeable road according to claim 1, characterized in that: and in the S1, the pretreatment of the roadbed (1) comprises the steps of cleaning the surface of the roadbed (1) and rolling the roadbed (1).
3. The construction method of the fully prefabricated assembled type permeable road according to claim 1, characterized in that: in the S2, construction paying-off is carried out before the lower baffle body (601) is constructed, a total station instrument is adopted for fixed-point lofting when the lower baffle body (601) is installed, checking and adjusting are carried out at any time, a center line is measured and checked, and elevation is rechecked.
4. The construction method of the fully prefabricated assembled type permeable road according to claim 1, characterized in that: and S3, paving and shaping the uniformly mixed mixture according to a specified cross slope by using an ABG (anaerobic baffled glass) paver when the bottom base layer (2) is paved, and rolling within the full width range immediately after paving and leveling.
5. The construction method of the fully prefabricated assembled type permeable road according to claim 1, characterized in that: geogrid (5) in S6 is tightened when laying, and is stretched out, avoids pincher trees, distortion or pot hole, and the overlap joint width between two geogrids (5) is 40cm, and upwarp section is reserved to geogrid (5) both sides, and geogrid (5) adopt U type nail to fix in soil and tensioning, and the U type nail interval is 1.5m, and the branch of porous brick (15) is spread and is accomplished through many machines, should guarantee four inclined planes of porous brick (15) and the corresponding inclined plane of adjacent porous brick (15) and laminate each other when laying, porous brick (15) be the trapezium structure.
6. The construction method of the fully prefabricated assembled type permeable road according to claim 1, characterized in that: in the S7, before the concrete edge sealing (12) is constructed, a support (1802) is installed on a base (9) and a formwork (1801) is fixed, the gap between the porous brick (15) and the formwork (1801) is sealed by C20 concrete, and the geogrid (5) is tilted upwards and reaches the middle position of the concrete edge sealing (12).
7. The construction method of the fully prefabricated assembled type permeable road according to claim 1, characterized in that: in the S8, the thickness of the mortar cushion layer (13) is 3 cm.
8. The construction method of the fully prefabricated assembled type permeable road according to claim 1, characterized in that: in the step S9, the filling height of the graded broken stones (11) is equal to the height of the perforated bricks (15).
9. The construction method of the fully prefabricated assembled type permeable road according to claim 1, characterized in that: and in the S10, the permeable geotextiles (17) are stretched tightly to avoid creasing, twisting or potholing when being laid, and the lap joint width between the two permeable geotextiles (17) is not less than 50 cm.
10. The construction method of the fully prefabricated assembled type permeable road according to claim 1, characterized in that: and a protrusion (701) is arranged on one side surface of the road panel (7) used in the S11, a concave part (702) is arranged on the side surface opposite to the side surface on which the protrusion (701) is arranged, and the protrusion (701) of one road panel (7) is inserted into the concave part (702) of the adjacent road panel (7) to complete meshing during splicing.
CN201910355104.7A 2019-04-29 2019-04-29 Construction method of full-prefabricated assembled permeable road Active CN110042723B (en)

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CN110387782B (en) * 2019-08-21 2021-06-15 广州市第二市政工程有限公司 Curb of assembled self-drainage asphalt pavement and construction method thereof
CN110644316B (en) * 2019-08-26 2021-08-17 武汉理工大学 Sponge-type prefabricated pavement and construction method thereof
CN111305482B (en) * 2020-03-13 2021-07-20 贵州建工集团第五建筑工程有限责任公司 Building roof sponge playground capable of recovering rainwater and construction method thereof

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CN204530365U (en) * 2015-03-24 2015-08-05 扬州大学 There is the permeable road structure of curb
CN206467518U (en) * 2017-01-15 2017-09-05 深圳市高语园林工程有限公司 A kind of road surfacing structure
CN107288008A (en) * 2017-08-03 2017-10-24 四川云图瑞科技有限公司 A kind of sponge urban road material
CN208501416U (en) * 2018-06-26 2019-02-15 中国市政工程西北设计研究院有限公司 A kind of sponge urban water-through road structure

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