CN118547546B - A highway bridge subgrade pavement structure and construction method thereof - Google Patents
A highway bridge subgrade pavement structure and construction method thereof Download PDFInfo
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- CN118547546B CN118547546B CN202410861507.XA CN202410861507A CN118547546B CN 118547546 B CN118547546 B CN 118547546B CN 202410861507 A CN202410861507 A CN 202410861507A CN 118547546 B CN118547546 B CN 118547546B
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 239000000872 buffer Substances 0.000 claims abstract description 90
- 239000010410 layer Substances 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 239000002344 surface layer Substances 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims description 51
- 239000002245 particle Substances 0.000 claims description 14
- 239000004575 stone Substances 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000010426 asphalt Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 description 29
- 230000017525 heat dissipation Effects 0.000 description 13
- 230000002349 favourable effect Effects 0.000 description 11
- 230000008595 infiltration Effects 0.000 description 10
- 238000001764 infiltration Methods 0.000 description 10
- 238000003825 pressing Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 229920001875 Ebonite Polymers 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002352 surface water Substances 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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
-
- 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
-
- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
本申请涉及公路施工的技术领域，尤其是涉及一种公路桥梁路基路面结构及其施工方法，其包括垫层、基层以及面层，所述垫层内设置有支撑底座，所述支撑底座的顶面设置有多块缓冲板，多块所述缓冲板的顶面设置有渗水板，所述基层设置于所述渗水板的顶面，所述面层设置于所述基层的顶面，所述支撑底座分别设置有用于承托多块所述缓冲板的支撑机构。本申请具有提高沥青道路的使用寿命的效果。
The present application relates to the technical field of highway construction, and in particular to a highway bridge subgrade pavement structure and a construction method thereof, which comprises a cushion layer, a base layer and a surface layer, wherein a support base is arranged in the cushion layer, a plurality of buffer plates are arranged on the top surface of the support base, a plurality of the buffer plates are arranged on the top surface with water seepage plates, the base layer is arranged on the top surface of the water seepage plates, the surface layer is arranged on the top surface of the base layer, and the support base is respectively provided with support mechanisms for supporting the plurality of the buffer plates. The present application has the effect of increasing the service life of asphalt roads.
Description
Technical Field
The application relates to the technical field of highway construction, in particular to a highway bridge subgrade and pavement structure and a construction method thereof.
Background
Highway engineering refers to the work of investigation, measurement, design, construction, maintenance, management and the like of a highway structure. Highway engineering structures include roadbeds, roadways, bridges, culverts, tunnels, drainage systems, safety protection facilities, greening and traffic monitoring facilities, and houses, workshops and other service facilities used for construction, maintenance and monitoring.
The road bed and pavement of the highway bridge are mostly paved as asphalt roads or concrete roads, the existing asphalt roads are structurally divided into a surface layer, a base layer and a cushion layer, the cushion layer is paved by using broken stone or natural gravel and is mainly responsible for drainage, heat insulation and bearing, the base layer is a water stable layer and bears the bearing of the pavement together with the cushion layer, and the surface layer is an asphalt layer and has the advantages of good flatness, good bearing capacity, skid resistance and wear resistance.
However, as the cushion layer is paved by using broken stone or natural gravel, when the deducted vehicle runs on the roadbed and the pavement of the highway bridge, the broken stone or natural gravel is easy to loosen due to the fact that the vehicle extrudes the pavement for a long time, the bearing structure of the cushion layer is damaged, and then the asphalt layer is cracked by grouting, so that the service life of an asphalt road is seriously influenced.
Disclosure of Invention
In order to prolong the service life of an asphalt road, the application provides a road bridge subgrade and pavement structure and a construction method thereof.
In a first aspect, the present application provides a road bridge subgrade pavement structure, which adopts the following technical scheme:
The utility model provides a highway bridge subgrade road surface structure, includes bed course, basic unit and surface course, be provided with the support base in the bed course, the top surface of support base is provided with polylith buffer board, polylith the top surface of buffer board is provided with the infiltration board, the basic unit set up in the top surface of infiltration board, the surface course set up in the top surface of basic unit, the support base is provided with respectively and is used for the bearing polylith buffer board's supporting mechanism.
Through adopting above-mentioned technical scheme, when needing to lay the pitch road, at first fixed mounting supports the base on the road bed, then pass through supporting mechanism installation polylith buffer board respectively, the infiltration board is established to the top surface of polylith buffer board lid jointly afterwards, lay basic unit and surface course in proper order again at last, and when the surface course receives the vehicle extrusion, the extrusion force loops through basic unit, the infiltration board, and then transmit to the buffer board, supporting mechanism cushions the extrusion force this moment, simultaneously under supporting mechanism's effect, the buffer board supports the surface course finally, and then be favorable to reducing bearing structure and take place to damage, reduce pitch layer mortar breakage, improve the life of pitch road.
Optionally, the support base includes carriage and water storage frame, the carriage with the water storage frame interval sets up, the top surface of carriage is provided with the buffer frame, the buffer board butt in the top surface of buffer frame, the carriage with be provided with coupling assembling between the water storage frame, supporting mechanism set up in the carriage.
Through adopting above-mentioned technical scheme, when needs installation support base, at first install supporting mechanism in a plurality of braced frames respectively, then loop through coupling assembling with braced frame and water storage frame in proper order with spaced mode fixed connection, the braced frame is favorable to providing the support for the surface course to buffer the extrusion force of vehicle, the water storage frame is favorable to reducing ponding on the surface course, ponding is in the water storage frame after keeping in again discharging groundwater system, and the water storage frame plays the supporting role to the surface course simultaneously, and then is favorable to improving the stability that supports the base support surface course.
Optionally, the supporting mechanism includes the ejector pin, the ejector pin set up in the bottom surface of buffer board, the both ends of ejector pin are articulated to be provided with the diagonal bar, the diagonal bar deviates from the one end of ejector pin is articulated to be provided with the slide bar, the spout has been seted up to the inboard of carriage, the slide bar with spout sliding connection, the one end of slide bar is provided with rubber, the carriage is provided with and is used for the leveling subassembly of buffer board.
Through adopting above-mentioned technical scheme, when the surface course received the extrusion force of vehicle, the extrusion force was final to buffer board extrusion, and buffer board extrusion buffer frame downwards this moment, and buffer board drove the ejector pin and pushes down simultaneously, and the ejector pin pushes down the slide bar through the dead lever to make the slide bar extrude rubber in the spout, because buffer frame and rubber have the ability of deformation, buffer frame and rubber adsorb the extrusion force jointly this moment, and after the extrusion force elimination, automatic shape that resumes, and then be favorable to improving support base buffering extrusion force, and improve asphalt road life's stability.
Optionally, the leveling subassembly includes the regulating part, the regulation thread groove has been seted up in the outside of carriage, regulating part threaded connection in the regulation thread groove, the one end of regulating part extend in the spout, the one end rotation of regulating part is provided with the piece that supports, support the piece with rubber butt.
Through the technical scheme, when the adjusting piece is rotated, the adjusting piece drives the abutting block to move towards the direction close to the rubber through threads and abuts against the rubber through the abutting block, when the buffer plate is inclined during initial installation or the buffer frame is partially damaged, the adjusting piece can be rotated at the moment, and finally the sliding rod is moved, so that the buffer plate is leveled, the buffer plate is horizontally placed on the top surface of the buffer frame, and the stability of stress of the buffer plate is guaranteed.
Optionally, the coupling assembling includes the spliced pole, the carriage with the end angle of water storage frame has offered respectively and has been stepped down the groove, the spliced pole with the groove of stepping down is pegged graft, it is provided with the fixture block to step down the inslot, the lateral wall of spliced pole corresponds and is provided with the draw-in groove, the fixture block with the draw-in groove is pegged graft.
Through adopting above-mentioned technical scheme, when needs are fixed each other supporting frame and water storage frame, at first with the fixture block aim at and insert the draw-in groove in, the spliced pole grafting is in the inslot of stepping down of supporting frame and water storage frame this moment, under the connected action of spliced pole, and the supporting frame is fixed each other with the water storage frame this moment, is favorable to reducing supporting frame and water storage frame loose, improves the stability that the support base supported.
Optionally, the supporting frame runs through and is provided with the louvre, the outer end of louvre is provided with the sprue, the supporting frame is provided with and is used for driving the subassembly of opening and close that the sprue removed.
Through adopting above-mentioned technical scheme, when opening the louvre through opening and close the subassembly, the heat accessible louvre in the braced frame looses outside the braced frame to reduce the holistic temperature of bed course.
Optionally, the opening and closing assembly includes the push rod, the push rod slide in the louvre, the one end of push rod with the sprue is connected, the other end of push rod is provided with first wedge, the bottom surface of ejector pin is provided with the depression bar, the one end of keeping away from of depression bar is provided with the second wedge, first wedge with the second wedge cooperatees, the carriage is provided with and is used for the cooperation to the reset piece that the push rod removed.
Through adopting above-mentioned technical scheme, when the ejector pin pushes down, the ejector pin drives the depression bar and pushes down, under the effect of first wedge face and second wedge face, the depression bar drives the push rod outwards promotes, thereby the push rod breaks away from the putty in the louvre, heat and then outside the carriage from heat dissipation Kong San, when the extrusion force eliminates, finally make the putty close in the louvre through the piece that resets, so repeatedly, the putty plays the effect of piston, is favorable to accelerating the heat dissipation in the carriage outside the carriage.
Optionally, the restoring element is a spring, the spring housing is located the push rod lateral wall, the lateral wall ring of push rod is equipped with the locating part, the one end of spring with the locating part butt, the other end of spring with the inner wall butt of carriage.
Through adopting above-mentioned technical scheme, when the push rod outwards promotes, the push rod compresses tightly the spring through the locating part, and when the extrusion force eliminated, the spring release elasticity and reset, and then is favorable to improving the stability that first wedge and second wedge laminated.
Optionally, a macadam colloidal particle mixing layer is arranged in the water storage frame.
Through adopting above-mentioned technical scheme, when the extrusion force was applyed in water storage frame top, enclose under the water storage frame and close, rubble micelle mixed layer is favorable to providing the support to the face layer, and after ponding infiltration in the water storage frame, ponding temporarily exists in the gap of rubble micelle mixed layer, when not influencing the bearing capacity of bed course, is favorable to reducing ponding on the face layer.
A highway bridge subgrade pavement construction method comprises the following steps:
Paving a cushion layer, cleaning a roadbed, respectively installing a supporting mechanism on a plurality of supporting frames, and enabling a buffer plate to be abutted to the top surface of the buffer frame through a leveling assembly;
Sequentially installing a plurality of supporting frames and a plurality of water storage frames on a roadbed at intervals, fixedly connecting the supporting frames with the water storage frames through a connecting assembly, and simultaneously filling a broken stone colloidal particle mixing layer into the water storage frames;
After the laying construction of the cushion layer is completed, a water seepage plate is covered on the top surface of the cushion layer;
laying a base layer and waiting for the base layer to solidify;
Paving a surface layer, waiting for solidification of the surface layer, and finishing construction of the roadbed and the pavement of the highway bridge.
In summary, the application has the following beneficial technical effects:
When needing to lay the asphalt road, at first fixed mounting supports the base on the road bed, then pass through supporting mechanism installation polylith buffer board respectively, cover jointly at the top surface of polylith buffer board and establish the infiltration board afterwards, lay basic unit and surface course in proper order again at last, and when the surface course received the vehicle extrusion, the extrusion force loops through basic unit, the infiltration board, and then transmit to the buffer board, supporting mechanism buffers the extrusion force this moment, simultaneously under supporting mechanism's effect, the buffer board finally supports the surface course, and then be favorable to reducing bearing structure and take place to damage, reduce asphalt layer mortar breakage, improve the life of asphalt road.
Drawings
FIG. 1 is a schematic view of the overall structure of the highway bridge subgrade and pavement structure of the present application;
FIG. 2 is a schematic diagram of the connection of the water permeable plate and the support pad of the present application;
FIG. 3 is a schematic diagram of the connection of the support frame and the water storage frame of the present application;
FIG. 4 is a schematic view of a supporting frame and a supporting mechanism according to the present application;
FIG. 5 is a cross-sectional view of a buffer plate and support frame of the present application;
fig. 6 is a cross-sectional view of the support frame and the buffer frame of the present application.
The reference numerals are 1, a cushion layer, 2, a base layer, 3, a surface layer, 4, a supporting base, 5, a buffer plate, 6, a water seepage plate, 7, a supporting frame, 8, a water storage frame, 9, an embedding groove, 10, a buffer frame, 11, a connecting column, 12, a yielding groove, 13, a clamping block, 14, a clamping groove, 15, a push rod, 16, an inclined rod, 17, a slide rod, 18, a slide groove, 19, rubber, 20, an adjusting piece, 21, an adjusting thread groove, 22, a supporting piece, 23, a heat dissipation hole, 24, a blocking piece, 25, a push rod, 26, a first wedge surface, 27, a second wedge surface, 28, a pressing rod, 29, a spring, 30, a limiting piece, 31 and a broken stone colloidal particle mixed layer.
Detailed Description
The application is described in further detail below with reference to fig. 1-6.
Examples:
referring to fig. 1 and 2, a highway bridge subgrade pavement structure comprises a cushion layer 1, a base layer 2 and a surface layer 3. The road surface water drainage and bearing functions are mainly achieved through the cushion layer 1, the base layer 2 is a water stable layer and plays a role in road surface bearing together with the cushion layer 1, the surface layer 3 is an asphalt layer, and the asphalt layer has good flatness, bearing capacity, skid resistance and wear resistance.
Install in the bed course 1 and support base 4, support the top surface of base 4 and install buffer board 5, the quantity of buffer board 5 is equipped with the polylith, and the buffer board 5 of polylith is used for buffering the extrusion force that the vehicle was gone. The infiltration board 6 is installed to the top surface of polylith buffer board 5, and basic unit 2 fixed mounting is in the top surface of infiltration board 6, and surface course 3 fixed mounting is in the top surface of basic unit 2. The support base 4 is provided with support mechanisms corresponding to the number of the buffer plates 5, and the support mechanisms are used for providing support for the buffer plates 5.
When the vehicle runs on the surface course 3, the extrusion force of the vehicle wheels firstly acts on the surface course 3, the extrusion force sequentially passes through the base layer 2 and the water seepage plate 6 and then is transmitted to the support base 4, and at the moment, under the action of the support mechanism, the buffer plate 5 buffers the extrusion force of the vehicle wheels, so that the damage of the bearing mechanism of the cushion layer 1 is reduced, and the service life of the road cleaning is prolonged.
Specifically, referring to fig. 2, the support base 4 includes a support frame 7 and a water storage frame 8. The number of the supporting frames 7 and the water storage frames 8 is multiple, and the supporting frames 7 and the water storage frames 8 are installed at intervals. An embedded groove 9 is formed in the top surface of the supporting frame 7, and a buffer frame 10 is fixedly arranged in the embedded groove 9. The main material of the buffer frame 10 is hard rubber, and has the functions of supporting and deforming. The buffer plate 5 abuts against the top surface of the buffer frame 10.
Referring to fig. 2 and 3, in order to facilitate the connection and fixation of the support frame 7 and the water storage frame 8, a connection assembly is installed between the support frame 7 and the water storage frame 8, and the connection assembly includes a connection post 11. The four end corners of the supporting frame 7 and the water storage frame 8 are provided with yielding grooves 12, the supporting frame 7 and the water storage frame 8 are abutted to the side wall of the connecting column 11 through the yielding grooves 12, and gaps are reserved between the supporting frame 7 and the water storage frame 8. A clamping block 13 is fixed in the abdication groove 12, the section of the clamping block 13 is T-shaped, a clamping groove 14 is arranged on the side wall of the connecting column 11 corresponding to the position of the clamping block 13, and the clamping block 13 is spliced with the clamping groove 14.
When the support frame 7 and the water storage frame 8 are required to be connected and fixed, the support frame 7 and the water storage frame 8 are firstly prepared at intervals respectively, and then the clamping blocks 13 on the support frame 7 and the water storage frame 8 are respectively inserted into the clamping grooves 14 on the connecting columns 11. Under the action of the connecting column 11, the supporting frame 7 and the water storage frame 8 are mutually fixed and are not loose.
Specifically, referring to fig. 4 and 5, a supporting mechanism is installed in the supporting frame 7, and the supporting mechanism includes a jack 15. In this embodiment, three ejector rods 15 are provided, and the three ejector rods 15 are respectively and fixedly connected to the bottom surface of the buffer plate 5. Two ends of the ejector rod 15 are hinged with inclined rods 16, and one end of each inclined rod 16, which is away from the ejector rod 15, is hinged with a sliding rod 17. A sliding groove 18 is formed in the inner side of the supporting frame 7, the sliding rod 17 is horizontally arranged, and the sliding rod 17 is in sliding connection with the sliding groove 18. The end of the sliding rod 17, which is far away from the inclined rod 16, is fixed with rubber 19, the rubber 19 is also hard rubber, and the hard rubber has supporting and deformation properties.
When the pressing force acts on the buffer plate 5, the buffer plate 5 first presses the buffer frame 10, and presses and deforms the buffer frame 10. When the buffer plate 5 extrudes downwards, the buffer plate 5 drives the ejector rod 15 to press downwards, under the limit of the chute 18, the ejector rod 15 drives the slide rod 17 to horizontally extrude through the inclined rod 16, and at the moment, the slide rod 17 extrudes the rubber 19 in the chute 18, so that the buffer plate 5 is integrally supported, and the supporting and buffering performances of the buffer plate 5 are improved. And when the extrusion force is eliminated, the buffer frame 10 and the rubber 19 deform and reset, so that the road surface is smooth.
Referring to fig. 5, in order to ensure that the buffer plate 5 horizontally abuts against the top surface of the buffer frame 10, the support frame 7 is further provided with a leveling assembly including an adjusting member 20. An adjusting thread groove 21 is formed in the outer side of the supporting frame 7 corresponding to the position of the sliding groove 18, and the adjusting thread groove 21 is communicated with the sliding groove 18. The adjusting member 20 is a cylindrical block, and the adjusting member 20 is screwed with the adjusting screw groove 21. One end of the adjusting piece 20 is rotatably connected with a supporting block 22 through a connecting rod, the supporting block 22 is slidably connected in the chute 18, and the supporting block 22 is abutted against one end of the rubber 19.
When the adjusting piece 20 is rotated, the adjusting piece 20 drives the abutting block 22 to move towards the direction close to the rubber 19 through the connecting rod, at the moment, the abutting block 22 abuts against the rubber 19, and meanwhile, the rubber 19 is driven to move in the sliding groove 18, so that the levelness of the buffer plate 5 is finally adjusted, and the buffer plate 5 is guaranteed to abut against the top surface of the buffer frame 10.
Referring to fig. 6, in order to reduce heat in the support frame 7, a heat dissipation hole 23 is formed through a side wall of the support frame 7, and a block 24 is provided at an outer end of the heat dissipation hole 23. The blocking block 24 is used for blocking or opening the heat dissipation holes 23, and the supporting frame 7 is provided with an opening and closing component for driving the blocking block 24 to move. The opening and closing assembly comprises a push rod 25, the push rod 25 slides in the heat dissipation hole 23, and the rod diameter of the push rod 25 is smaller than the aperture of the heat dissipation hole 23, so that heat can be discharged from the heat dissipation hole 23. One end of the push rod 25 is fixedly connected with the blocking block 24, and a first wedge-shaped surface 26 is arranged at the other end of the push rod 25. The bottom surface of ejector pin 15 is fixed with depression bar 28, and second wedge face 27 has been seted up to the bottom of depression bar 28, and first wedge face 26 cooperatees with second wedge face 27.
When the buffer plate 5 is pressed down, the buffer plate 5 drives the pressing rod 28 to descend through the ejector rod 15, and under the cooperation of the first wedge-shaped surface 26 and the second wedge-shaped surface 27, the pressing rod 28 drives the pushing rod 25 to move horizontally, and the pushing rod 25 drives the blocking block 24 to eject, so that the heat dissipation holes 23 are opened. In the running process of the continuous vehicle, the blocking block 24 continuously opens and closes the heat dissipation holes 23, and under the action of pressure, the efficiency of heat flowing out of the support frame 7 from the heat dissipation holes 23 is improved.
It should be noted that, referring to fig. 6, in order to improve the stability of the cooperation between the first wedge-shaped surface 26 and the second wedge-shaped surface 27, the supporting frame 7 is provided with a restoring member, the restoring member is a spring 29, and the spring 29 is sleeved on the side wall of the push rod 25. The side wall fixing ring of the push rod 25 is provided with a limiting piece 30, and the limiting piece 30 is a limiting ring. One end of the spring 29 is fixedly connected with the inner side of the limiting piece 30, and the other end of the spring 29 is fixedly connected with the inner side of the supporting frame 7.
When the push rod 25 moves in a direction away from the push rod 28, the push rod 28 presses the spring 29 via the stopper 30. When the pressure lever 28 rises, the spring 29 resets to release the elastic force, and drives the push rod 25 to move towards the direction approaching the pressure lever 28 through the limiting piece 30, at this time, the first wedge-shaped surface 26 is always matched with the second wedge-shaped surface 27.
Referring to fig. 2, in order to facilitate improvement of the supporting force of the water storage frame 8, the water storage frame 8 is internally doped with a crushed stone colloidal particle mixing layer 31, gaps are formed in the colloidal particle mixing layer at any time, water is beneficial to storage, thus accumulated water on the road surface is reduced, and finally the accumulated water permeates into the ground. Meanwhile, under the enclosing of the water storage frame 8, the loosening of the broken stone colloidal particle mixing layer 31 is reduced, the surface layer 3 is supported, and the overall supporting performance of the supporting base 4 is improved.
A highway bridge subgrade pavement construction method comprises the following steps:
S1, paving a cushion layer 1, cleaning construction waste on a roadbed, initially installing a buffer plate 5 on a buffer frame 10, and then enabling a sliding rod 17 to be inserted into a sliding groove 18, wherein rubber 19 is abutted against a butting block 22. Then the adjusting piece 20 is screwed, the adjusting piece 20 drives the abutting block 22 to move through the connecting rod, and under the adjusting action of the adjusting pieces 20 at the two ends, the buffer plate 5 is finally horizontally placed and abuts against the top surface of the rubber 19 frame;
S2, sequentially placing the support frames 7 and the water storage frames 8 at intervals, then installing the connecting column 11 at the end angle positions of the support frames 7 and the water storage frames 8, aligning and inserting the clamping blocks 13 into the clamping grooves 14, and fixedly connecting the support frames 7 and the water storage frames 8 under the action of the connecting column 11. Filling a broken stone colloidal particle mixing layer 31 in the water storage frame 8 to finish the construction of the cushion layer 1;
s3, after the construction of the cushion layer 1 is completed, covering the top surface of the cushion layer 1 with a water seepage plate 6;
s4, paving a base layer 2, wherein the base layer 2 is mainly cement mortar, and after the cement mortar is solidified, finishing paving construction of the base layer 2;
and S5, paving a surface layer 3, wherein the surface layer 3 is mainly asphalt, and after the asphalt is solidified, completing the construction of the roadbed and the pavement of the highway bridge.
When the extrusion force that a plurality of automobiles went acts on buffer board 5 top, the extrusion force loops through pitch layer, basic unit 2, infiltration board 6, finally acts on buffer board 5, and the buffer layer is extruded downwards to buffer board 5 after the pressurized, and buffer board 5 that simultaneously moves downwards drives ejector pin 15 and pushes down, and ejector pin 15 passes through diagonal rod 16 and drives slide bar 17 extrusion rubber 19 to support the extrusion force that the vehicle went jointly and cushion.
When the extrusion force of a plurality of automobiles running acts on the upper part of the crushed stone colloidal particle mixing layer 31, under the enclosing action of the water storage frame 8, the crushed stone colloidal particle mixing layer 31 supports the surface layer 3 together, and meanwhile, colloidal particles in the crushed stone colloidal particle mixing layer 31 buffer the extrusion force.
In the continuous vehicle extrusion process, the supporting plate drives the ejector rod 15 to reciprocate downwards, the ejector rod 15 drives the pressing rod 28 to reciprocate downwards, the pressing rod 28 drives the pushing rod 25 to reciprocate in the cooperation of the first wedge-shaped surface 26 and the second wedge-shaped surface 27 and the cooperation movement of the spring 29, and the pushing rod 25 drives the blocking block 24 to reciprocate on and off the heat dissipation hole 23, so that heat in the supporting frame 7 is extracted, and heat in the supporting frame 7 is reduced.
To sum up, the buffer plate 5 and the crushed stone colloidal particle mixed layer 31 support the surface layer 3 together, so that the damage of the bearing structure is reduced, the slurry cracking of the asphalt layer is reduced, and the service life of the asphalt road is prolonged.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.
Claims (5)
1. The highway bridge subgrade pavement structure comprises a cushion layer (1), a base layer (2) and a surface layer (3), and is characterized in that a supporting base (4) is arranged in the cushion layer (1), a plurality of buffer plates (5) are arranged on the top surface of the supporting base (4), water seepage plates (6) are arranged on the top surfaces of the buffer plates (5), the base layer (2) is arranged on the top surface of the water seepage plates (6), the surface layer (3) is arranged on the top surface of the base layer (2), and supporting mechanisms for supporting the buffer plates (5) are respectively arranged on the supporting base (4);
The support base (4) comprises a support frame (7) and a water storage frame (8), wherein the support frame (7) and the water storage frame (8) are arranged at intervals, a buffer frame (10) is arranged on the top surface of the support frame (7), the buffer plate (5) is abutted to the top surface of the buffer frame (10), a connecting assembly is arranged between the support frame (7) and the water storage frame (8), and the support mechanism is arranged in the support frame (7);
The supporting mechanism comprises a push rod (15), the push rod (15) is arranged on the bottom surface of the buffer plate (5), two ends of the push rod (15) are hinged to be provided with inclined rods (16), one ends of the inclined rods (16) deviating from the push rod (15) are hinged to be provided with sliding rods (17), sliding grooves (18) are formed in the inner sides of the supporting frames (7), the sliding rods (17) are in sliding connection with the sliding grooves (18), one ends of the sliding rods (17) are provided with rubber (19), and the supporting frames (7) are provided with leveling components used for leveling the buffer plate (5);
The leveling assembly comprises an adjusting piece (20), an adjusting threaded groove (21) is formed in the outer side of the supporting frame (7), the adjusting piece (20) is in threaded connection with the adjusting threaded groove (21), one end of the adjusting piece (20) extends into the sliding groove (18), one end of the adjusting piece (20) is rotatably provided with a supporting block (22), and the supporting block (22) is in supporting connection with the rubber (19);
the support frame (7) is provided with a radiating hole (23) in a penetrating mode, the outer end of the radiating hole (23) is provided with a blocking block (24), and the support frame (7) is provided with an opening and closing assembly used for driving the blocking block (24) to move;
The opening and closing assembly comprises a push rod (25), the push rod (25) slides in the radiating hole (23), one end of the push rod (25) is connected with the blocking block (24), the other end of the push rod (25) is provided with a first wedge surface (26), the bottom surface of the push rod (15) is provided with a press rod (28), one end of the press rod (28) far away from the push rod (15) is provided with a second wedge surface (27), the first wedge surface (26) is matched with the second wedge surface (27), and the supporting frame (7) is provided with a reset piece for being matched with the push rod (25) to move.
2. The highway bridge subgrade pavement structure of claim 1, wherein the connecting assembly comprises a connecting column (11), a yielding groove (12) is formed in the end angle of the supporting frame (7) and the water storage frame (8), the connecting column (11) is spliced with the yielding groove (12), a clamping block (13) is arranged in the yielding groove (12), a clamping groove (14) is correspondingly formed in the side wall of the connecting column (11), and the clamping block (13) is spliced with the clamping groove (14).
3. The highway bridge subgrade and pavement structure according to claim 1, characterized in that said reset member is a spring (29), said spring (29) is sleeved on the side wall of said push rod (25), a limit member (30) is annularly arranged on the side wall of said push rod (25), one end of said spring (29) is abutted with said limit member (30), and the other end of said spring (29) is abutted with the inner wall of said supporting frame (7).
4. The highway bridge subgrade and pavement structure according to claim 2 is characterized in that a broken stone colloidal particle mixing layer (31) is arranged in the water storage frame (8).
5. A construction method of a road bridge subgrade and pavement based on the structure of the road bridge subgrade and pavement as set forth in claim 4, comprising the steps of:
Paving a cushion layer (1), cleaning construction waste on a roadbed, primarily installing a buffer plate (5) on a buffer frame (10), then enabling a sliding rod (17) to be inserted into a sliding groove (18), abutting rubber (19) on an abutting block (22) at the moment, then rotating an adjusting piece (20) through threads, driving the abutting block (22) to move by the adjusting piece (20) through a connecting rod, and finally enabling the buffer plate (5) to be horizontally placed and abutted to the top surface of the buffer frame (10) under the adjusting action of the adjusting pieces (20) at two ends;
Sequentially placing a plurality of support frames (7) and a plurality of water storage frames (8) at intervals, then installing a connecting column (11) at the end angle positions of the support frames (7) and the water storage frames (8), simultaneously aligning and inserting a clamping block (13) in a clamping groove (14), under the action of the connecting column (11), fixedly connecting the support frames (7) and the water storage frames (8) with each other, and then filling a broken stone colloidal particle mixing layer (31) in the water storage frames (8) to finish the construction of a cushion layer (1);
after the laying construction of the cushion layer (1) is completed, a water seepage plate (6) is covered on the top surface of the cushion layer (1);
laying a base layer (2) and waiting for the base layer (2) to solidify;
Paving a surface layer (3), and waiting for solidification of the surface layer (3) to finish construction of the roadbed and the pavement of the highway bridge.
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| CN202410861507.XA CN118547546B (en) | 2024-06-28 | 2024-06-28 | A highway bridge subgrade pavement structure and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115182214A (en) * | 2022-08-19 | 2022-10-14 | 江苏宏隆茂建设工程有限公司 | Municipal road foundation construction process |
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| ES2663703T3 (en) * | 2009-07-06 | 2018-04-16 | Brock International | Underlying structural support system for use with paving and floor covering elements |
| CN213925774U (en) * | 2020-11-12 | 2021-08-10 | 内蒙古自治区交通建设工程质量监督局 | A kind of pavement protective cushion for cement concrete highway construction |
| CN115323866A (en) * | 2022-08-31 | 2022-11-11 | 中国市政工程西北设计研究院有限公司 | Prefabricated pin-connected panel urban road pavement structure |
| CN218322166U (en) * | 2022-10-10 | 2023-01-17 | 广东天润营力建设有限公司 | Water permeability bed course structure |
| CN115491941A (en) * | 2022-10-17 | 2022-12-20 | 新乡职业技术学院 | Road anti-settling mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115182214A (en) * | 2022-08-19 | 2022-10-14 | 江苏宏隆茂建设工程有限公司 | Municipal road foundation construction process |
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