High-strength roadbed structure

Abstract

The utility model discloses a high-strength roadbed structure, and relates to the technical field of roadbeds. The device comprises a foundation, a gravel mixing layer is laid on the top of the foundation, a plurality of supporting steel rails are evenly and fixedly connected to the top of the gravel mixing layer, a plurality of transmission steel rails matched with the supporting steel rails are symmetrically, evenly and fixedly connected to the bottom of the gravel mixing layer, and pressing inclined bars are symmetrically and fixedly connected to the bottoms of the supporting steel rails; and one end of the transmission steel rail is fixedly connected with an abutting inclined lever abutting against the pressing inclined lever. The protective reinforcing mesh and the set steel are fixedly connected through the fixing assemblies, then when the supporting steel rails are subjected to road surface pressure, the pressing inclined bars are pushed to abut against the abutting inclined bars, and the abutting inclined bars are pushed to drive the transmission steel rails and the set steel to move in the length direction of the supporting steel rails; and therefore, the two shaping steels drive the two protective reinforcing meshes to move close to each other in the length direction of the supporting steel rails, and the two protective reinforcing meshes clamp and fix the two sides of the gravel mixing layer in the middle.

Description

TECHNICAL FIELD

[0001] The present application relates to the roadbed technical field, especially to a high-strength roadbed structure. BACKGROUND

[0002] With the rapid development of economy and the increasing traffic volume, higher requirements are put forward for the bearing capacity and stability of roads. As an important part of road engineering, the performance of roadbed directly affects the service performance and service life of roads. The traditional roadbed is usually composed of a roadbed body, drainage facilities, protection facilities and an embankment. The roadbed body includes an embankment filled with natural soil and stone blocks and a cut in the natural stratum. The drainage facilities generally include ground drainage facilities and underground drainage facilities, which are used to keep the roadbed and slope dry to improve the strength and stability of the roadbed. The protection facilities are generally used to protect the soil slope of the roadbed and prevent water flow from eroding the roadbed.

[0003] At present, the design and construction technology of roadbed structure has been relatively mature, but there are still some limitations. For example, in seasonal frozen soil areas, due to the change of water temperature, the soil of the roadbed body will undergo periodic freezing and thawing, causing the roadbed body to form frost heaving and frost boiling, which significantly reduces the strength and stability of the roadbed. In addition, when the traditional roadbed drains water on the road surface, the impurities in the water will enter the interior of the roadbed along the water flow. If the water is drained for a long time, the impurities will be blocked and accumulated in the interior of the roadbed, and it is not convenient for people to clean the impurities in the interior of the roadbed, which affects the drainage effect of the roadbed. In order to solve these problems, the prior art has proposed various roadbed reinforcement and improvement measures, such as using geogrid to strengthen the strength of the roadbed and reduce the lateral displacement of the roadbed, and wrapping the roadbed with waterproof geotextile to prevent the exchange of moisture between the interior and the exterior of the roadbed and to block the migration path of water in the interior of the roadbed during the freezing process.

[0004] Although the prior art has made certain progress in the reinforcement and improvement of roadbed structure, it still faces some challenges. In particular, in some areas, the embankment piled up by natural soil and stone blocks bears the pressure applied by the road surface for a long time, causing the embankment to collapse to both sides and affecting the flatness of the road surface. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to solve the problem that the embankment piled up by natural soil and stone blocks bears the pressure applied by the road surface for a long time, causing the embankment to collapse to both sides and affecting the flatness of the road surface. The present application provides a high-strength roadbed structure.

[0006] In order to achieve the above-mentioned purpose, the present application specifically adopts the following technical scheme:

[0007] The utility model provides a high -strength roadbed structure, including foundation, the top of foundation is paved with macadam mixed layer, the top of macadam mixed layer is uniformly connected with a plurality of support rail fixedly, the bottom of macadam mixed layer is uniformly connected with a plurality of transmission rail fixedly with support rail adaptation, the bottom of support rail is fixedly connected with the pressure and bevel, one end of transmission rail is fixedly connected with the resistance and bevel of being in contact with pressure and bevel, the top of macadam mixed layer is paved with waterproof pavement, one end of transmission rail passes through macadam mixed layer, and fixedly connected with the steel of shaping, one end of foundation is symmetrically provided with drainage ditch, the inside of drainage ditch is installed with protective steel mesh, one end of steel of shaping is installed with the fixed assembly for fixing protective steel mesh.

[0008] Through the cooperation of the fixed assembly, the protective steel mesh, the pressure and bevel and the resistance and bevel, the protective steel mesh and the steel of shaping can be fixed and connected by the fixed assembly, then when the support rail is subjected to the pressure of the road surface, the pressure and bevel and the resistance and bevel are in contact, and the resistance and bevel drives the transmission rail and the steel of shaping to move along the length direction of the support rail, so that the two steels of shaping drive the two protective steel meshes to move towards each other along the length direction of the support rail, and the two protective steel meshes are centrally clamped and fixed on both sides of the macadam mixed layer, thereby effectively reducing the collapse of the macadam mixed layer to both sides under stress, and improving the support strength and the road surface flatness of the macadam mixed layer.

[0009] Further, the waterproof pavement is an asphalt rubber layer.

[0010] Through the cooperation of the fixed assembly, the protective steel mesh, the pressure and bevel and the resistance and bevel, the protective steel mesh and the steel of shaping can be fixed and connected by the fixed assembly, then when the support rail is subjected to the pressure of the road surface, the pressure and bevel and the resistance and bevel are in contact, and the resistance and bevel drives the transmission rail and the steel of shaping to move along the length direction of the support rail, so that the two steels of shaping drive the two protective steel meshes to move towards each other along the length direction of the support rail, and the two protective steel meshes are centrally clamped and fixed on both sides of the macadam mixed layer, thereby effectively reducing the collapse of the macadam mixed layer to both sides under stress, and improving the support strength and the road surface flatness of the macadam mixed layer.

[0011] Further, the top of the drainage ditch is fixedly connected with a filter screen.

[0012] Through the cooperation of the fixed assembly, the protective steel mesh, the pressure and bevel and the resistance and bevel, the protective steel mesh and the steel of shaping can be fixed and connected by the fixed assembly, then when the support rail is subjected to the pressure of the road surface, the pressure and bevel and the resistance and bevel are in contact, and the resistance and bevel drives the transmission rail and the steel of shaping to move along the length direction of the support rail, so that the two steels of shaping drive the two protective steel meshes to move towards each other along the length direction of the support rail, and the two protective steel meshes are centrally clamped and fixed on both sides of the macadam mixed layer, thereby effectively reducing the collapse of the macadam mixed layer to both sides under stress, and improving the support strength and the road surface flatness of the macadam mixed layer.

[0013] Further, the top of the steel of shaping is fixedly connected with a mounting plate, one side of the mounting plate is fixedly connected with a T-shaped positioning rod, a curbstone is inserted between the mounting plate and the T-shaped positioning rod, and the bottom of the curbstone is provided with a positioning slot matched with the T-shaped positioning rod.

[0014] By adopting the technical scheme, the T-shaped positioning rod is embedded in the inside of the positioning slot and buckled to the one side of the installation plate to fix the curb along the block, so that the quick fixing and connection of the curb along the block and the shaped steel are facilitated, the installation efficiency of the supporting rail is effectively improved, and the practicality of the device is improved.

[0015] Further, one end of the positioning slot is provided with a receiving groove matched with the T-shaped positioning rod.

[0016] By adopting the technical scheme, the T-shaped positioning rod is embedded in the inside of the positioning slot and buckled to the one side of the installation plate to fix the curb along the block, so that the quick fixing and connection of the curb along the block and the shaped steel are facilitated, the installation efficiency of the supporting rail is effectively improved, and the practicality of the device is improved.

[0017] Further, the geotechnical cloth layer is fixedly connected to one side of the protective steel mesh, and the geotechnical cloth layer is installed between the protective steel mesh and the gravel mixed layer.

[0018] By adopting the technical scheme, the T-shaped positioning rod is embedded in the inside of the positioning slot and buckled to the one side of the installation plate to fix the curb along the block, so that the quick fixing and connection of the curb along the block and the shaped steel are facilitated, the installation efficiency of the supporting rail is effectively improved, and the practicality of the device is improved.

[0019] Further, the fixing assembly comprises a fixing screw symmetrically fixed to one end of the shaped steel, a plurality of fixing slots matched with the fixing screw are symmetrically formed in one end of the geotechnical cloth layer and the protective steel mesh, and one end of the fixing screw penetrates through the fixing slot and is threadedly connected with a fixing nut.

[0020] By adopting the technical scheme, the T-shaped positioning rod is embedded in the inside of the positioning slot and buckled to the one side of the installation plate to fix the curb along the block, so that the quick fixing and connection of the curb along the block and the shaped steel are facilitated, the installation efficiency of the supporting rail is effectively improved, and the practicality of the device is improved.

[0021] Further, one end of the fixing screw is sleeved with a fixing gasket, and the fixing gasket is installed between the fixing nut and the protective steel mesh.

[0022] By adopting the technical scheme, the T-shaped positioning rod is embedded in the inside of the positioning slot and buckled to the one side of the installation plate to fix the curb along the block, so that the quick fixing and connection of the curb along the block and the shaped steel are facilitated, the installation efficiency of the supporting rail is effectively improved, and the practicality of the device is improved.

[0023] In summary, the present application has at least one of the following beneficial effects:

[0024] 1. By setting the cooperation of the fixed assembly, the protective steel mesh, the pressing inclined rod and the resisting inclined rod, the protective steel mesh is fixedly connected with the shaped steel by the fixed assembly, then the pressing inclined rod and the resisting inclined rod are pushed to form resistance when the supporting steel rail is subjected to the pressure of the road surface, and the transmission steel rail and the shaped steel are driven to move along the length direction of the supporting steel rail by the resisting inclined rod, so that the two shaped steels drive the two protective steel meshes to move towards each other along the length direction of the supporting steel rail, and the two protective steel meshes are centrally clamped and fixed on both sides of the gravel mixed layer, thereby effectively reducing the collapse of the gravel mixed layer to both sides after being subjected to stress, and improving the support strength and the road surface flatness of the gravel mixed layer.

[0025] 2. By setting the cooperation of the T-shaped positioning rod and the positioning slot, when the curb block is inserted between the mounting plate and the T-shaped positioning rod, the T-shaped positioning rod is embedded in the inside of the positioning slot and buckles the curb block to be fixed on one side of the mounting plate, so that the quick fixed connection of the curb block and the shaped steel is realized, the installation efficiency of the supporting steel rail is effectively improved, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in the application.

[0027] Figure 2 It is a side structure sectional view of the device body in the application.

[0028] Figure 3 It is an internal structure explosion diagram of the device body in the application.

[0029] Figure 4 It is a three-dimensional structure explosion diagram of the fixed assembly in the application.

[0030] BRIEF DESCRIPTION OF DRAWINGS:

[0031] 1, foundation; 2, gravel mixed layer; 3, supporting steel rail; 4, transmission steel rail; 5, pressing inclined rod; 6, resisting inclined rod; 7, waterproof road surface; 8, shaped steel; 9, drainage ditch; 10, filter screen; 11, mounting plate; 12, T-shaped positioning rod; 13, curb block; 14, positioning slot; 15, storage groove; 16, geotextile layer; 17, protective steel mesh; 18, fixed slot; 19, fixed screw; 20, fixed nut; 21, fixed gasket. DETAILED DESCRIPTION

[0032] The application will be further described in detail below in combination with the accompanying drawings. Figure 1 —4.

[0033] The application discloses a high-strength roadbed structure.

[0034] Referring to Figure 1 - Figure 3 The utility model provides a high -strength roadbed structure, including foundation 1, the top of foundation 1 is paved with macadam mixed layer 2, the top of macadam mixed layer 2 is uniformly fixedly connected with a plurality of support rail 3, the bottom of macadam mixed layer 2 is uniformly fixedly connected with a plurality of transmission rail 4 with support rail 3 adaptation, the bottom of support rail 3 is fixedly connected with the pressure close to the slope 5, one end of transmission rail 4 is fixedly connected with the abutment slope 6 with pressure close to the slope 5, the top of macadam mixed layer 2 is paved with waterproof pavement 7, one end of transmission rail 4 passes through macadam mixed layer 2, and is fixedly connected with the shaped steel 8, one end of foundation 1 is symmetrically provided with drainage ditch 9, the inboard of drainage ditch 9 is installed with protective steel mesh 17, and one end of shaped steel 8 is installed with the fixed assembly for fixing protective steel mesh 17.

[0035] In use, first by tightening the fixed assembly is fixedly connected with the shaped steel 8 and protective steel mesh 17, so that two protective steel mesh 17 and the two sides of macadam mixed layer 2 fit and abut, and the support rail 3 is provided to improve the support strength of waterproof pavement 7, so that the road surface pressure borne by waterproof pavement 7 is transmitted to support rail 3, and pushes support rail 3 to drive pressure close to the slope 5 to extrude abutment slope 6, so that two abutment slope 6 along the length direction of support rail 3 move to each other, and abutment slope 6 pulls transmission rail 4 to drive two shaped steels 8 to move to each other along the length direction of support rail 3, and two shaped steels 8 drive two protective steel mesh 17 to move to each other along the length direction of support rail 3, and two protective steel mesh 17 form center clamping fixation to the two sides of macadam mixed layer 2, to maintain the internal fastening degree of macadam mixed layer 2, reduce the collapse of macadam mixed layer 2 to both sides after stress, and improve the support strength and road flatness of macadam mixed layer 2.

[0036] Referring to Figure 1 and Figure 2 Waterproof pavement 7 is provided as a rubber asphalt layer.

[0037] In use, when the top of waterproof pavement 7 bears pressure, the strong elasticity and durability of the rubber asphalt layer effectively improve the wear resistance and waterproofness of waterproof pavement 7, and improve the traffic bearing performance of waterproof pavement 7.

[0038] Referring to Figure 1 and Figure 2 The top of drainage ditch 9 is fixedly connected with filter screen 10.

[0039] In use, when the road surface debris slides to the inside of the drainage ditch 9, the filter screen 10 intercepts and filters the debris, and under the action of gravity, the debris slides along the inclined surface of the filter screen 10 to both sides of the foundation 1, thereby reducing the accumulation of debris in the drainage ditch 9, preventing blockage, and effectively improving the practicality of the device.

[0040] With reference to Figure 1 - Figure 3 The top of the shaped steel 8 is fixedly connected with a mounting plate 11, one side of the mounting plate 11 is fixedly connected with a T-shaped positioning rod 12, and a curb block 13 is inserted between the mounting plate 11 and the T-shaped positioning rod 12. The bottom of the curb block 13 is provided with a positioning slot 14 matched with the T-shaped positioning rod 12.

[0041] One end of the positioning slot 14 is provided with a receiving groove 15 matched with the T-shaped positioning rod 12.

[0042] In use, first, the positioning slot 14 is aligned with one end of the T-shaped positioning rod 12 by manually pulling the curb block 13, and is inserted between the mounting plate 11 and the T-shaped positioning rod 12, so that one end of the T-shaped positioning rod 12 slides along the inside of the positioning slot 14 and is embedded in the inside of the receiving groove 15, so that the T-shaped positioning rod 12 clamps the curb block 13 and is fixed on one side of the mounting plate 11. Therefore, the quick fixed connection of the curb block 13 and the shaped steel 8 is achieved, the installation efficiency of the supporting rail 3 is effectively improved, and the practicality of the device is improved.

[0043] With reference to Figure 2 - Figure 4 One side of the protective steel mesh 17 is fixedly connected with a geotextile layer 16, and the geotextile layer 16 is installed between the protective steel mesh 17 and the gravel mixed layer 2.

[0044] The fixing assembly includes a fixing screw 19 fixedly connected to one end of the shaped steel 8, and a plurality of fixing slots 18 matched with the fixing screw 19 are symmetrically formed in one end of the geotextile layer 16 and the protective steel mesh 17. One end of the fixing screw 19 penetrates the fixing slot 18 and is threadedly connected with a fixing nut 20.

[0045] Further, one end of the fixing screw 19 is sleeved with a fixing washer 21, and the fixing washer 21 is installed between the fixing nut 20 and the protective steel mesh 17.

[0046] In use, first, after the installation of the shaped steel 8, the geotextile layer 16 is manually pulled to one side of the shaped steel 8, and the one end of the fixing screw rod 19 is passed through the fixing slot 18 under the driving of the geotextile layer 16, then the protective steel mesh 17 is pulled to one side of the geotextile layer 16, and the one end of the fixing screw rod 19 is passed through the fixing slot 18 under the driving of the protective steel mesh 17, then the fixing gasket 21 is manually pulled to one side of the protective steel mesh 17 and is sleeved on the one end of the fixing screw rod 19, and then the fixing nut 20 is screwed with the fixing screw rod 19 to form a threaded connection, so that the fixing nut 20 is pulled to the shaped steel 8 along the length direction of the fixing screw rod 19, and the fixing gasket 21 is pushed to form a fixed contact with the protective steel mesh 17, so as to realize the fixed connection of the shaped steel 8, the geotextile layer 16 and the protective steel mesh 17, and the support strength of the two sides of the gravel mixed layer 2 is improved by the protective steel mesh 17, and the water flowing out of the gravel mixed layer 2 is filtered and intercepted by the geotextile layer 16, so as to reduce the water and soil loss in the gravel mixed layer 2 and improve the structural stability of the gravel mixed layer 2.

[0047] The implementation principle of the high-strength roadbed structure of the embodiment is that: first, the positioning slot 14 is aligned with one end of the T-shaped positioning rod 12 by manually pulling the road edge block 13, and is inserted between the mounting plate 11 and the T-shaped positioning rod 12, so that one end of the T-shaped positioning rod 12 slides along the inside of the positioning slot 14 and is embedded in the inside of the receiving groove 15, so that the T-shaped positioning rod 12 buckles the road edge block 13 and is fixed on one side of the mounting plate 11, so as to realize the quick fixed connection of the road edge block 13 and the shaped steel 8;

[0048] Then the geotextile layer 16 is manually pulled to one side of the shaped steel 8, and the one end of the fixing screw rod 19 is passed through the fixing slot 18 under the driving of the geotextile layer 16, then the protective steel mesh 17 is pulled to one side of the geotextile layer 16, and the one end of the fixing screw rod 19 is passed through the fixing slot 18 under the driving of the protective steel mesh 17, then the fixing gasket 21 is manually pulled to one side of the protective steel mesh 17 and is sleeved on the one end of the fixing screw rod 19, and then the fixing nut 20 is screwed with the fixing screw rod 19 to form a threaded connection, so that the fixing nut 20 is pulled to the shaped steel 8 along the length direction of the fixing screw rod 19, and the fixing gasket 21 is pushed to form a fixed contact with the protective steel mesh 17, so as to realize the fixed connection of the shaped steel 8, the geotextile layer 16 and the protective steel mesh 17, and the support strength of the two sides of the gravel mixed layer 2 is improved by the protective steel mesh 17, and the water flowing out of the gravel mixed layer 2 is filtered and intercepted by the geotextile layer 16;

[0049] Meanwhile, the support steel rail 3 is arranged to improve the support strength of the waterproof pavement 7, so that the pavement pressure borne by the waterproof pavement 7 is transmitted to the support steel rail 3, and the support steel rail 3 is pushed to drive the pressing inclined rail 5 to extrude and abut against the abutting inclined rail 6, so that the two abutting inclined rails 6 move towards each other along the length direction of the support steel rail 3, and the abutting inclined rail 6 drives the transmission steel rail 4 to drive the two shaped steels 8 to move towards each other along the length direction of the support steel rail 3, and the two shaped steels 8 drive the two protective steel mesh 17 to move towards each other along the length direction of the support steel rail 3, and the two protective steel mesh 17 are centrally clamped and fixed on both sides of the gravel mixed layer 2, so as to maintain the internal fastening degree of the gravel mixed layer 2 and reduce the collapse of the gravel mixed layer 2 to both sides after being stressed.

Claims

1. A high-strength roadbed structure comprising a foundation (1), characterized by: The top of the foundation (1) is paved with a gravel mixed layer (2), the top of the gravel mixed layer (2) is uniformly and fixedly connected with a plurality of supporting steel rails (3), the bottom of the gravel mixed layer (2) is uniformly and fixedly connected with a plurality of transmission steel rails (4) matched with the supporting steel rails (3), the bottom of the supporting steel rail (3) is fixedly connected with a pressing inclined rod (5), one end of the transmission steel rail (4) is fixedly connected with a resisting inclined rod (6) abutting against the pressing inclined rod (5), the top of the gravel mixed layer (2) is paved with a waterproof pavement (7), one end of the transmission steel rail (4) penetrates through the gravel mixed layer (2) and is fixedly connected with a shaped steel (8), one end of the foundation (1) is symmetrically provided with a drainage ditch (9), the inner side of the drainage ditch (9) is mounted with a protective steel mesh (17), one end of the shaped steel (8) is mounted with a fixing assembly for fixing the protective steel mesh (17).

2. A high strength subgrade structure according to claim 1, wherein: The waterproof pavement (7) is arranged as a rubber asphalt layer.

3. A high strength subgrade structure according to claim 1, wherein: The top of the drainage ditch (9) is fixedly connected with a filter screen (10) in an inclined manner.

4. A high strength subgrade structure according to claim 1, wherein: The top of the shaped steel (8) is fixedly connected with a mounting plate (11), one side of the mounting plate (11) is fixedly connected with a T-shaped positioning rod (12), a road curb (13) is inserted between the mounting plate (11) and the T-shaped positioning rod (12), and the bottom of the road curb (13) is provided with a positioning slot (14) matched with the T-shaped positioning rod (12).

5. A high strength subgrade structure according to claim 4, wherein: One end of the positioning slot (14) is provided with a receiving groove (15) matched with the T-shaped positioning rod (12).

6. A high strength subgrade structure according to claim 1, wherein: One side of the protective steel mesh (17) is fixedly connected with a geotextile layer (16), and the geotextile layer (16) is mounted between the protective steel mesh (17) and the gravel mixed layer (2).

7. A high strength subgrade structure according to claim 6, wherein: The fixing assembly comprises a fixing screw (19) fixedly connected with one end of the shaped steel (8), a plurality of fixing slots (18) matched with the fixing screw (19) are symmetrically formed in one end of the geotextile layer (16) and the protective steel mesh (17), one end of the fixing screw (19) penetrates through the fixing slot (18) and is threadedly connected with a fixing nut (20).

8. A high strength subgrade structure according to claim 7, wherein: One end of the fixing screw (19) is sleeved with a fixing gasket (21), and the fixing gasket (21) is mounted between the fixing nut (20) and the protective steel mesh (17). One end of the fixing screw (19) is sleeved with a fixing gasket (21), and the fixing gasket (21) is mounted between the fixing nut (20) and the protective steel mesh (17).

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