CN117107585B - Road pavement structure of sponge city and construction method thereof - Google Patents
Road pavement structure of sponge city and construction method thereof Download PDFInfo
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- CN117107585B CN117107585B CN202311049889.8A CN202311049889A CN117107585B CN 117107585 B CN117107585 B CN 117107585B CN 202311049889 A CN202311049889 A CN 202311049889A CN 117107585 B CN117107585 B CN 117107585B
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- 238000010276 construction Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 239000004567 concrete Substances 0.000 claims abstract description 29
- 239000011384 asphalt concrete Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 69
- 239000004576 sand Substances 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 239000004575 stone Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000012615 aggregate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/015—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with flat filtering elements
- B01D33/0158—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
-
- 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
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/105—Accessories, e.g. flow regulators or cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Road Paving Structures (AREA)
Abstract
The application relates to the technical field of municipal roads and discloses a road pavement structure of a sponge city and a construction method thereof, wherein the road pavement structure comprises a foundation, a permeable concrete layer, a permeable cushion layer and a pavement layer which are sequentially arranged from bottom to top, a plurality of permeable holes communicated with the permeable cushion layer are formed in the pavement layer, a water storage cavity is formed in the foundation, and a drain pipe is communicated with the bottom of the water storage cavity; a filter screen is vertically arranged in the water storage cavity in a sliding way, and a plurality of filter holes are formed in the filter screen; the top wall of the water storage cavity is provided with a base plate, the lower side of the base plate is fixedly provided with ejector pins which are equal to the filter holes in number and correspond to each other one by one, and each ejector pin is respectively positioned right above the filter holes; the upper side of the filter screen is fixedly connected with a push-pull piece, and the push-pull piece penetrates through the permeable concrete layer, the permeable cushion layer and the pavement layer to extend upwards. When the filter screen is blocked by impurities, the filter screen can be lifted upwards through the push-pull piece, so that the thimble penetrates out of the filter hole, and rainwater can normally flow into the water storage cavity.
Description
Technical Field
The application relates to the technical field of municipal roads, in particular to a road pavement structure of a sponge city and a construction method thereof.
Background
The sponge city is an innovative expression for promoting the development of green buildings and low-carbon cities and the formation of smart cities, and can be like a sponge, and has good elasticity in the aspects of adapting to environmental changes, dealing with natural disasters caused by rainwater, and the like, namely, absorbing water, storing water, seeping water and purifying water during raining, and draining and utilizing the stored rainwater when needed, thereby realizing the free migration of the rainwater in the city. The road is used as an infrastructure for vehicles and pedestrians to pass through in a sponge city, and the drainage performance of the road is very important.
In the related art, chinese patent publication No. CN109235182a discloses a sponge type road pavement structure, which comprises a traffic lane and sidewalks separately arranged on two sides of the traffic lane, a green belt is arranged between the sidewalk and the traffic lane, a water storage tank is arranged at the bottom of the green belt, a water inlet channel for supplying water into the water storage tank is communicated with the side wall of the water storage tank, a filter screen is arranged at the end part of the water inlet channel connected with the water storage tank, and the edge of the filter screen is tightly attached to the peripheral wall of the water inlet channel. The filter screen is used for filtering the rainwater flowing into the water storage tank from the water inlet channel so as to reduce sundries flowing into the water storage tank.
Because the impurity such as silt can be inevitably mixed in the rainwater, above-mentioned sponge type road pavement structure is after long-term use, and the mesh of filter screen is blocked by impurity in the rainwater easily, leads to the rainwater to be difficult to flow into in the catch basin, remains to be improved.
Disclosure of Invention
In order to clean impurities in a filter screen so that rainwater can normally flow into a water storage cavity, the application provides a road pavement structure of a sponge city and a construction method thereof.
In a first aspect, the application provides a road pavement structure for a sponge city, which adopts the following technical scheme:
The road pavement structure of the sponge city comprises a foundation, a permeable concrete layer, a permeable cushion layer and a road surface layer which are sequentially arranged from bottom to top, wherein a plurality of permeable holes communicated with the permeable cushion layer are formed in the road surface layer, a water storage cavity for storing rainwater is formed in the foundation, and a drain pipe for leading out the rainwater is communicated with the bottom of the water storage cavity; a filter screen is vertically arranged in the water storage cavity in a sliding manner, and a plurality of filter holes are formed in the filter screen; the top wall of the water storage cavity is provided with a base plate, the lower side of the base plate is fixedly provided with ejector pins which are equal to the filter holes in number and correspond to the filter holes one by one, and each ejector pin is respectively positioned right above the filter holes; the upper side fixedly connected with push-and-pull spare of filter screen, push-and-pull spare passes permeable concrete layer, permeable cushion layer and road surface layer and upwards extends.
Through adopting above-mentioned technical scheme, during rainy day, the rainwater that falls at the pavement layer can be followed the hole of permeating water earlier and got into the bed course of permeating water, then along the bed course infiltration concrete layer of permeating water in, then the concrete layer of permeating water gets into the water storage chamber. When rainwater flows into the water storage cavity, the filter screen can filter impurities in the rainwater, so that the rainwater stored at the bottom of the water storage cavity is clearer and cleaner. When water is needed in arid weather, a water pump can be connected to the drain pipe to extract rainwater in the water storage cavity for use, so that the energy is saved and the environment is protected.
After long-time use, if the filtration pore on the filter screen is blocked by impurity, the staff can utilize the push-and-pull piece to upwards pull the filter screen for each thimble wears out corresponding filtration pore respectively, can utilize the thimble to realize the clearance mediation of filter screen, thereby make the rainwater can normally follow the filter screen seepage flow to the retaining chamber bottom. The dredging mode does not need to excavate roads, and is simple and convenient to operate and high in dredging efficiency.
Optionally, the push-pull spare is established movable rod, setting up the holding ring on the holding rod circumference lateral wall top including connecting dead lever, the slip cap on the filter screen in the dead lever outside, the movable hole that is used for supplying the dead lever to slide to wear to establish is seted up at the middle part of movable rod, the constant head tank of vertical extension has been seted up to the circumference lateral wall of movable hole, the upper and lower both ends of constant head tank all are the closed setting, the vertical slip setting of holding ring is in the constant head tank.
Through adopting above-mentioned technical scheme, when needing the mediation filter screen, will move the pole upward pulling earlier for the diapire of constant head tank offsets with the holding ring. After the movable rod is continuously pulled up, the bottom wall of the positioning groove can lift the positioning ring upwards, so that the fixed rod can pull the filter screen upwards, and the filter screen can be moved to a dredging position. After dredging, the movable rod is pushed downwards, so that the top wall of the positioning groove is propped against the positioning ring, the top wall of the positioning groove can push the positioning ring downwards, and then the fixed rod can push the filter screen downwards, so that the filter screen is reset to a working position, and the filter screen dredging device is simple in structure and convenient to operate.
Optionally, the top of movable rod is provided with the extension piece, be provided with the fixture block of elastic material on the extension piece, the extension groove that is used for supplying the extension piece to inlay to establish is seted up to the top surface of pavement layer, set up on the cell wall of extension groove with fixture block interference fit's draw-in groove.
Through adopting above-mentioned technical scheme, when the filter screen is in the working position with the thimble separation, extend the piece and inlay and establish in extending the groove, fixture block and draw-in groove interference fit for the difficult relative foundation of movable rod removes, and the stability of push-and-pull spare and filter screen is high.
Optionally, the butt is provided with many reset springs between filter screen and the diapire of water storage chamber, reset spring's flexible direction is on a parallel with vertical direction.
By adopting the technical scheme, the reset spring not only plays a role in supporting the filter screen in an auxiliary way, so that the gravity of the filter screen is not only acted on the connection part of the filter screen and the push-pull piece, but also the connection part of the push-pull piece and the filter screen is prevented from being cracked and damaged due to overlarge local stress; the filter screen can be prevented from contacting with the bottom wall of the water storage cavity, and the normal use of the filter screen can be further guaranteed.
Optionally, a stand column is penetrated in the reset spring, and the stand column is fixedly arranged between the top wall and the bottom wall of the water storage cavity.
By adopting the technical scheme, the upright post is arranged in the reset spring in a penetrating way, and on one hand, the upright post plays a guiding role when the filter screen vertically slides, so that the reset spring is not easy to twist; on the other hand, the foundation can be reinforced, and the bearing capacity of the foundation can be improved, so that the position of the road provided with the water storage cavity is not easy to collapse.
Optionally, two sliding racks are arranged on the filter screen, a plurality of vertically distributed connecting grooves are formed in the sliding racks, abdication grooves are respectively formed in the cavity walls on two opposite sides of the water storage cavity, connecting teeth are smoothly arranged in the abdication grooves, connecting springs are arranged between the connecting teeth and the groove walls of the abdication grooves, the connecting springs are used for driving the connecting teeth to extend into the adjacent connecting grooves, and guide inclined planes are respectively arranged at the upper end and the lower end of the connecting teeth; when the connecting teeth extend into the connecting grooves, the guide inclined planes are mutually attached to the groove walls of the connecting grooves.
Through adopting above-mentioned technical scheme, coupling spring can order about the connection tooth level and stretch into the spread groove for the difficult vertical movement of slip rack helps further improving the stability of filter screen, makes the filter screen be difficult for sliding when receiving the impact of rainwater in the retaining chamber. Because the guide inclined plane is attached to the groove wall of the connecting groove, when the filter screen is subjected to the acting force larger than the elastic force of the connecting spring, the sliding rack can squeeze the guide inclined plane, so that the connecting teeth can be automatically retracted into the yielding groove, and the dredging and cleaning of the filter screen are prevented from being influenced by the connecting teeth.
Optionally, rotate in the ground and be provided with the linkage gear, linkage gear and one of them slip rack intermeshing to the one side meshing that the sliding rack was kept away from to the linkage gear has the linkage rack, the vertical slip setting of linkage rack is fixed with the warning sign in the ground and the top, the through-hole that is used for supplying the warning sign to wear out has been seted up respectively on permeable concrete layer, permeable cushion layer and the pavement layer.
Through adopting above-mentioned technical scheme, after the filtration pore blocks up, along with the rainwater constantly gets into in the water storage chamber, the rainwater that stores above the filter screen can more and more, the gravity of rainwater also can be bigger and bigger, after the gravity of rainwater is greater than the elasticity of connecting spring, filter screen and slip rack can move down for linkage gear rotates, linkage rack promotes the warning sign and shifts out the road surface layer, in order to remind the timely mediation filter screen of staff, the linkage is strong, warning effect is good.
Optionally, a fixed cavity for accommodating the linkage rack is formed in the foundation, a vertically extending dovetail groove is formed in the cavity wall of the fixed cavity, a dovetail block is arranged on one side of the linkage rack, and the dovetail block is slidably arranged in the dovetail groove; when the return spring is in a natural state, the positioning ring abuts against the top wall of the positioning groove, and a gap exists between the linkage rack and the bottom wall of the fixing cavity.
Through adopting above-mentioned technical scheme, when the linkage rack moves vertically, the dovetail can follow the vertical removal of dovetail to further improve the sliding stability of linkage rack. After the staff observes that the warning sign shifts out the pavement layer, can push down the warning sign earlier until the linked rack offsets with the diapire in fixed chamber, and the linked gear can reverse rotation this moment, and then drives slip rack and filter screen and upwards remove to make the holding ring upwards promote the roof of constant head tank, with the automatic ejecting extension groove of extension piece, be convenient for the staff operation push-and-pull piece.
In a second aspect, the construction method of the road pavement structure of the sponge city provided by the application adopts the following technical scheme:
A construction method of a road pavement structure of a sponge city comprises the following steps:
s1, leveling and tamping a foundation, digging a water storage cavity with an upper side opening on the foundation, and coating concrete on the circumferential side wall of the water storage cavity for reinforcement;
S2, firstly, filling the filter screen into the water storage cavity, then arranging the substrate at the top end of the side wall of the water storage cavity, and enabling each thimble to be positioned right above each filter hole;
s3, casting a permeable concrete layer on the upper side of the foundation, paving a layer of graded gravel with the diameter of 0.1-8.5mm, and paving a layer of graded gravel with the diameter of 9-18cm to form a permeable cushion layer;
S4, paving asphalt concrete above the permeable cushion layer to form a pavement layer, and then drilling a plurality of permeable holes communicated with the permeable cushion layer on the pavement layer at intervals.
In summary, the present application includes at least one of the following beneficial technical effects:
1. After the filter screen is blocked, a worker can pull the filter screen upwards by using the push-pull piece, so that each thimble penetrates out of the corresponding filter hole, and the quick dredging of the filter screen is realized, so that rainwater can normally flow into the bottom of the water storage cavity, and the operation is simple and convenient, and the dredging efficiency is high;
2. The connecting teeth are positioned in the adjacent connecting grooves, so that the sliding racks are not easy to move vertically, and the stability of the filter screen during working is improved;
3. after the filter screen blocks up, along with the continuous increase of rainwater in the retaining chamber, filter screen and slip rack can the downwardly moving for linkage gear rotates, and linkage rack promotes the warning sign and shifts out the pavement layer, in order to remind the timely mediation filter screen of staff.
Drawings
Fig. 1 is a cross-sectional view of an embodiment of the present application for showing a drain pipe.
FIG. 2 is a cross-sectional view of an embodiment of the present application for revealing a push-pull member.
Fig. 3 is an enlarged schematic view at a in fig. 2.
Fig. 4 is an enlarged schematic view at B in fig. 2.
Fig. 5 is a schematic view showing the structure of removing the foundation, the permeable concrete layer, the permeable bedding layer and the pavement layer according to the embodiment of the present application.
Reference numerals illustrate:
1. A foundation; 11. a water storage cavity; 12. a return spring; 13. a column; 14. a substrate; 141. a thimble; 15. a relief groove; 16. a connecting tooth; 161. a guide slope; 17. a connecting spring; 18. a fixed cavity; 181. a dovetail groove; 2. a water permeable concrete layer; 3. a water permeable cushion layer; 31. a water-permeable sand layer; 32. a permeable gravel layer; 4. a road surface layer; 41. a water permeable hole; 42. an extension groove; 43. a clamping groove; 5. a drain pipe; 51. a cover; 6. a filter screen; 61. a filter hole; 62. sliding racks; 621. a connecting groove; 7. a push-pull member; 71. a fixed rod; 72. a movable rod; 721. a movable hole; 722. a positioning groove; 73. a positioning ring; 74. an extension block; 741. a clamping block; 8. a linkage rack; 81. a warning board; 82. dovetail blocks; 9. and a linkage gear.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses a road pavement structure of a sponge city and a construction method thereof.
Referring to fig. 1, the road pavement structure of the sponge city comprises a foundation 1, a permeable concrete layer 2, a permeable cushion layer 3 and a pavement layer 4 which are sequentially arranged from bottom to top, wherein the foundation 1 can be an original stratum of a construction site, or can be a concrete layer or a masonry layer which is poured at a later stage, and the embodiment is preferably the original stratum. The permeable concrete layer 2 is porous concrete formed by mixing aggregate, cement, reinforcing agent and water, and the specific component proportion of the porous concrete belongs to the prior art, and the porous concrete layer is not described herein, and can be used for rainwater to flow through.
Referring to fig. 1, the permeable pad layer 3 comprises a permeable sand layer 31 and a permeable gravel layer 32 positioned right above the permeable sand layer 31, wherein the permeable sand layer 31 is formed by paving graded sand stones with the size of 0.1-8.5mm, the permeable gravel layer 32 is formed by paving graded broken stones with the size of 9-18cm, and not only is the water permeability good, but also rainwater can be preliminarily filtered when flowing through the permeable pad layer 3.
Referring to fig. 1, the pavement layer 4 is formed by paving asphalt concrete, and a plurality of water permeable holes 41 are formed in the pavement layer 4, the water permeable holes 41 are communicated with the water permeable cushion layer 3, and rainwater falling on the pavement layer 4 can flow into the water permeable cushion layer 3 through the water permeable holes 41.
Referring to fig. 1, a water storage chamber 11 for storing rainwater is provided in a foundation 1, and a permeable concrete layer 2 is formed with a top wall of the water storage chamber 11. The bottom of the water storage cavity 11 is communicated with a drain pipe 5, and one end of the drain pipe 5 penetrates out of the foundation 1, the permeable concrete layer 2, the permeable cushion layer 3 and the pavement layer 4 from bottom to top. The drain pipe 5 can drain the rainwater stored in the water storage cavity 11 outwards so as to realize the recycling of the rainwater, and the energy conservation and the environmental protection are realized. To prevent rainwater from entering the water storage chamber 11 through the drain pipe 5, a cover 51 is detachably connected to the exposed end of the drain pipe 5, and the cover 51 in this embodiment is preferably screwed to the drain pipe 5.
Referring to fig. 1 and 2, a filter screen 6 is vertically slidably disposed in the water storage chamber 11, and a plurality of filter holes 61 are spaced apart from the filter screen 6 to further filter the rainwater flowing into the water storage chamber 11. A plurality of return springs 12 are arranged between the filter screen 6 and the bottom wall of the water storage cavity 11, the top ends of the return springs 12 are fixed on the filter screen 6, and the bottom ends of the return springs 12 are fixed on the bottom wall of the water storage cavity 11, so that the expansion and contraction directions of the return springs 12 are parallel to the vertical direction. When the return spring 12 is in a natural state, gaps are formed between the filter screen 6 and the top wall and the bottom wall of the water storage cavity 11. The natural state in the present embodiment is a state in which the return spring 12 is acted upon by only the gravitational force of the filter screen 6.
Referring to fig. 1 and 2, in order to further improve stability of the filter screen 6, an upright post 13 is penetrated in each return spring 12, and the upright posts 13 are fixedly arranged between the top wall and the bottom wall of the water storage cavity 11, so that guiding and limiting effects are achieved when the filter screen 6 moves vertically.
It should be noted that, in order to adapt to heavy rainfall weather with large amount of rainwater, a drainage tube (not shown in the figure) communicated with the urban drainage tube 5 network may be connected to the water storage cavity 11, and the communication end of the drainage tube and the water storage cavity 11 is higher than the height of the filter screen 6 when in normal use.
Referring to fig. 2 and 3, a push-pull member 7 is disposed on the upper side of the filter screen 6, the push-pull member 7 includes a fixed rod 71 fixedly connected to the middle of the filter screen 6, a movable rod 72 slidably sleeved on the outer side of the fixed rod 71, and a positioning ring 73 fixedly connected to the top end of the circumferential side wall of the fixed rod 71, a movable hole 721 extending vertically is formed in the middle of the movable rod 72, and the fixed rod 71 is slidably inserted into the movable hole 721. Annular positioning grooves 722 are formed in the circumferential side walls of the movable holes 721, the positioning grooves 722 extend in the vertical direction, the upper ends and the lower ends of the positioning grooves 722 are closed, and the positioning rings 73 are vertically arranged in the positioning grooves 722 in a sliding mode. When the return spring 12 is in a natural state, the positioning ring 73 abuts against the top wall of the positioning groove 722, and the push-pull member 7 is in a folded state. If the movable rod 72 is lifted upwards, so that the positioning ring 73 abuts against the bottom wall of the positioning slot 722, when the movable rod 72 is lifted upwards, the positioning ring 73 moves upwards synchronously with the movable rod 72, and the filter screen 6 moves upwards.
Referring to fig. 3, an extension block 74 is fixed to the top end of the movable rod 72, the extension block 74 is cylindrical and has a diameter larger than that of the movable rod 72, the extension block 74 can shield the top opening of the movable hole 721, the extension groove 42 is formed in the top surface of the pavement layer 4, the inner diameter of the extension groove 42 is slightly larger than that of the extension block 74, and the depth is slightly larger than the thickness of the extension block 74, so that the extension block 74 can be completely embedded into the extension groove 42.
Referring to fig. 3, in order to further improve the stability of the extension block 74 embedded in the extension groove 42, a clamping groove 43 is formed in the bottom wall of the extension groove 42, a clamping block 741 in interference fit with the clamping groove 43 is fixed at the bottom of the extension block 74, and the clamping block 741 is made of a rubber material capable of generating elastic deformation, so that the extension block 74 is not easy to move out of the extension groove 42, and the stability of the movable rod 72 is improved.
Referring to fig. 2, a base plate 14 is fixed on the top wall of the water storage cavity 11, and the base plate 14 in this embodiment is net-shaped, so that rainwater can enter the water storage cavity 11 through the base plate 14. The lower side of the base plate 14 is fixed with the thimble 141 which is equal to the number of the filter holes 61 and corresponds to each other one by one, and each thimble 141 is positioned right above the filter hole 61. After the filter screen 6 is blocked, a worker can move the filter screen 6 upwards by using the push-pull piece 7 so that each thimble 141 respectively passes through the corresponding filter hole 61, thereby realizing quick dredging of the filter screen 6.
Referring to fig. 2 and 4, sliding racks 62 are respectively fixed at two ends of the lower side of the filter screen 6, and a plurality of vertically distributed connecting grooves 621 are formed on the sliding racks 62. The two opposite side walls of the water storage cavity 11 are respectively provided with a yielding groove 15, the yielding grooves 15 are horizontally and dynamically provided with connecting teeth 16, and the upper end and the lower end of each connecting tooth 16 are respectively provided with inclined guide inclined planes 161. A connecting spring 17 is fixed between the groove wall of the abdication groove 15 far away from the opening and the connecting tooth 16, when the connecting spring 17 is in a natural state, one end of the connecting tooth 16 with the guiding inclined surface 161 extends out of the abdication groove 15 to extend into the adjacent connecting groove 621 so as to play a certain limiting role on the sliding rack 62 and the filter screen 6. When the connecting teeth 16 extend into the connecting grooves 621, the guide inclined surfaces 161 are attached to the groove walls of the connecting grooves 621, so that the filter screen 6 cannot be influenced to slide vertically when receiving a force greater than the elastic force of the connecting springs 17.
Referring to fig. 2 and 4, a fixed cavity 18 is arranged on one side of a water storage cavity 11 of the foundation 1, a linkage rack 8 is vertically arranged in the fixed cavity 18 in a sliding manner, a warning board 81 is fixed on the upper side of the linkage rack 8, and through holes for the warning board 81 to penetrate out are respectively formed in the permeable concrete layer 2, the permeable cushion layer 3 and the pavement layer 4. A linkage gear 9 is meshed between the linkage rack 8 and the adjacent sliding rack 62, the linkage gear 9 is rotatably arranged in the cavity wall of the water storage cavity 11, and the linkage gear 9 is close to the bottom of the water storage cavity 11. After the filter screen 6 blocks up, along with the continuous increase of rainwater in flowing into the water storage cavity 11, the filter screen 6 atress can drive the slip rack 62 and move down for linkage gear 9 rotates, linkage rack 8 moves up, thereby makes warning sign 81 shift out the road surface layer 4, in order to remind the staff in time to clear up filter screen 6.
It should be noted that, in order to facilitate the operation of the push-pull member 7 by the operator, in this embodiment, when the return spring 12 is in a natural state, a gap exists between the linkage rack 8 and the bottom wall of the fixed cavity 18, that is, a certain space is reserved at the bottom of the fixed cavity 18, so that after the warning board 81 is pressed to the top surface to be flush with the pavement layer 4, it can still move downward for a certain distance, so that the linkage gear 9 can drive the sliding rack 62 to move upward when rotating reversely, and further the filter screen 6 pushes the push-pull member 7 upward, so that the extension block 74 moves out of the extension groove 42.
Referring to fig. 4 and 5, in order to improve the movement stability of the linked rack 8, a dovetail block 82 is fixed on one side of the linked rack 8 away from the linked gear 9, a vertically extending dovetail groove 181 is formed in a cavity wall of the fixed cavity 18, and the dovetail block 82 is slidably disposed in the dovetail groove 181.
The construction method of the road pavement structure of the sponge city comprises the following steps:
S1, leveling and tamping a foundation 1, digging a water storage cavity 11 with an upper side opening on the foundation 1, and then coating concrete on the circumferential side wall of the water storage cavity 11 for reinforcement;
S2, firstly, the filter screen 6 is arranged in the water storage cavity 11, then the substrate 14 is arranged at the top end of the side wall of the water storage cavity 11, and each thimble 141 is respectively positioned right above each filter hole 61;
s3, pouring and forming a permeable concrete layer 2 on the upper side of the foundation 1, paving a layer of graded sand stone with the diameter of 0.1-8.5mm, and paving a layer of graded sand stone with the diameter of 9-18cm to form a permeable cushion layer 3;
S4, asphalt concrete is paved above the permeable cushion layer 3 to form a pavement layer 4, and then a plurality of permeable holes 41 communicated with the permeable cushion layer 3 are drilled on the pavement layer 4 at intervals.
The embodiment of the application relates to a road pavement structure of a sponge city and a construction method thereof, wherein the implementation principle is as follows: in rainy days, rainwater falling on the pavement layer 4 can firstly enter the permeable cushion layer 3 along the permeable holes 41, then sequentially enter the water storage cavity 11 along the permeable cushion layer 3 and the permeable concrete layer 2, and when the rainwater flows into the water storage cavity 11, impurities can be filtered by the filter screen 6, and clean rainwater can flow into the bottom of the water storage cavity 11 through the filter holes 61 so as to realize storage of the rainwater.
If the filtering holes 61 on the filter screen 6 are blocked by impurities, the filter screen 6 can drive the sliding rack 62 to move downwards along with the continuous increase of rainwater flowing into the water storage cavity 11, so that the linkage gear 9 rotates anticlockwise, the linkage rack 8 pushes out the warning board 81, and the staff is reminded to clean the filter screen 6 in time. After the staff finds that the warning board 81 is pushed out, the warning board 81 is pressed down until the warning board 81 is propped against the bottom wall of the fixed cavity 18, the force applied to the linkage gear 9 moves downwards, so that the linkage gear 9 rotates clockwise, the sliding rack 62 and the filter screen 6 move upwards, and the positioning ring 73 pushes the extension block 74 out of the extension groove 42. And the movable rod 72 is pulled upwards by the extension block 74, and after the positioning ring 73 abuts against the bottom wall of the positioning groove 722, the fixed rod 71 and the filter screen 6 are forced to move upwards, so that the ejector pins 141 can respectively penetrate out of the corresponding filter holes 61, and dredging and cleaning of the filter screen 6 are realized.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (4)
1. A road pavement structure in sponge city, its characterized in that: the water storage device comprises a foundation (1), a permeable concrete layer (2), a permeable cushion layer (3) and a pavement layer (4) which are sequentially arranged from bottom to top, wherein a plurality of permeable holes (41) communicated with the permeable cushion layer (3) are formed in the pavement layer (4), a water storage cavity (11) for storing rainwater is formed in the foundation (1), and a drain pipe (5) for leading out the rainwater is communicated with the bottom of the water storage cavity (11); a filter screen (6) is vertically arranged in the water storage cavity (11) in a sliding manner, and a plurality of filter holes (61) are formed in the filter screen (6); the top wall of the water storage cavity (11) is provided with a base plate (14), the lower side of the base plate (14) is fixedly provided with ejector pins (141) which are equal to the filter holes (61) in number and correspond to each other one by one, and each ejector pin (141) is respectively positioned right above the filter holes (61); the upper side of the filter screen (6) is fixedly connected with a push-pull piece (7), and the push-pull piece (7) penetrates through the permeable concrete layer (2), the permeable cushion layer (3) and the pavement layer (4) to extend upwards;
The push-pull piece (7) comprises a fixed rod (71) connected to the filter screen (6), a movable rod (72) sleeved on the outer side of the fixed rod (71) in a sliding manner, and a positioning ring (73) arranged at the top end of the circumferential side wall of the fixed rod (71), wherein a movable hole (721) for the fixed rod (71) to slide through is formed in the middle of the movable rod (72), a positioning groove (722) extending vertically is formed in the circumferential side wall of the movable hole (721), and the upper end and the lower end of the positioning groove (722) are respectively in a closed arrangement, and the positioning ring (73) is vertically arranged in the positioning groove (722) in a sliding manner;
An extension block (74) is arranged at the top end of the movable rod (72), a clamping block (741) made of elastic materials is arranged on the extension block (74), an extension groove (42) for the extension block (74) to be embedded is formed in the top surface of the pavement layer (4), and a clamping groove (43) in interference fit with the clamping block (741) is formed in the groove wall of the extension groove (42);
A plurality of return springs (12) are arranged between the filter screen (6) and the bottom wall of the water storage cavity (11) in an abutting mode, and the telescopic direction of the return springs (12) is parallel to the vertical direction;
Two sliding racks (62) are arranged on the filter screen (6), a plurality of vertically distributed connecting grooves (621) are formed in the sliding racks (62), abdication grooves (15) are respectively formed in the two opposite side cavity walls of the water storage cavity (11), connecting teeth (16) are smoothly arranged in the abdication grooves (15) in a water smooth mode, connecting springs (17) are arranged between the connecting teeth (16) and the groove walls of the abdication grooves (15), the connecting springs (17) are used for driving the connecting teeth (16) to extend into the adjacent connecting grooves (621), and guide inclined planes (161) are respectively arranged at the upper end and the lower end of the connecting teeth (16); when the connecting teeth (16) extend into the connecting grooves (621), the guide inclined planes (161) are mutually attached to the groove walls of the connecting grooves (621);
The novel concrete permeable pavement structure is characterized in that a linkage gear (9) is rotationally arranged on the foundation (1), the linkage gear (9) is meshed with one sliding rack (62) in the linkage gear, one side, away from the sliding rack (62), of the linkage gear (9) is meshed with a linkage rack (8), the linkage rack (8) is vertically arranged in the foundation (1) in a sliding mode, a warning board (81) is fixed at the top end of the linkage rack, and through holes for the warning board (81) to penetrate are formed in the permeable concrete layer (2), the permeable cushion layer (3) and the pavement layer (4) respectively.
2. The road pavement structure of sponge city according to claim 1, wherein: an upright post (13) is arranged in the reset spring (12) in a penetrating way, and the upright post (13) is fixedly arranged between the top wall and the bottom wall of the water storage cavity (11).
3. The road pavement structure of sponge city according to claim 1, wherein: a fixed cavity (18) for accommodating the linkage rack (8) is formed in the foundation (1), a vertically extending dovetail groove (181) is formed in the cavity wall of the fixed cavity (18), a dovetail block (82) is arranged on one side of the linkage rack (8), and the dovetail block (82) is slidably arranged in the dovetail groove (181); when the return spring (12) is in a natural state, the positioning ring (73) is propped against the top wall of the positioning groove (722), and a gap exists between the linkage rack (8) and the bottom wall of the fixed cavity (18).
4. A construction method of a road pavement structure of a sponge city according to any one of claims 1 to 3, characterized in that: comprises the following steps of the method,
S1, leveling and tamping a foundation (1), digging a water storage cavity (11) with an upper side opening on the foundation (1), and then coating concrete on the circumferential side wall of the water storage cavity (11) for reinforcement;
s2, firstly, the filter screen (6) is arranged in the water storage cavity (11), then the base plate (14) is arranged at the top end of the side wall of the water storage cavity (11), and each thimble (141) is respectively positioned right above each filter hole (61);
S3, pouring and forming a permeable concrete layer (2) on the upper side of the foundation (1), paving a layer of graded gravel with the diameter of 0.1-8.5mm, and paving a layer of graded gravel with the diameter of 9-18cm to form a permeable cushion layer (3);
S4, paving asphalt concrete above the permeable cushion layer (3) to form a pavement layer (4), and then drilling a plurality of permeable holes (41) communicated with the permeable cushion layer (3) on the pavement layer (4) at intervals.
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| CN215947765U (en) * | 2021-08-05 | 2022-03-04 | 福建省高华建设工程有限公司 | Permeable pavement structure |
| CN217204520U (en) * | 2022-01-26 | 2022-08-16 | 哈尔滨铁道职业技术学院 | Drainage structure for roadbed and pavement |
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| CN107503263A (en) * | 2017-09-01 | 2017-12-22 | 沈阳建筑大学 | A kind of multimode rainwater-collecting purification and the urban road of self-restraint greenbelt |
| AT524788B1 (en) * | 2021-05-20 | 2022-09-15 | Mea Bautechnik Gmbh | LOCKING ELEMENT |
| CN218116663U (en) * | 2022-08-15 | 2022-12-23 | 重庆雍彦节能环保科技有限公司 | Sponge city modularization rainwater garden |
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| CN215947765U (en) * | 2021-08-05 | 2022-03-04 | 福建省高华建设工程有限公司 | Permeable pavement structure |
| CN217204520U (en) * | 2022-01-26 | 2022-08-16 | 哈尔滨铁道职业技术学院 | Drainage structure for roadbed and pavement |
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