Highway subgrade anti-settlement structure

Abstract

The utility model provides a kind of highway subgrade anti-settling structure, including two roadside seats being arranged in the two sides of highway, the bottom surface of roadside seat is fixedly connected with expansion plate, two the expansion plate between setting pad layer.The utility model has the advantages that: stressed reinforcement provides support for upper structure, cooperates distribution rib, forms reinforcing mesh in subgrade, and its both ends are arranged in roadside seat, so it can greatly improve the anti-settling performance of subgrade.Bearing seat cooperates bearing column, top plate to support stressed reinforcement, in addition to the auxiliary of filling layer, make reinforcing mesh more stable.First backfill layer, second backfill layer is backfilled below pavement layer, both use high-strength material, so that subgrade has the advantages such as high bearing capacity, good stability, effectively improving differential settlement.Setting geotextile between each layer, geotextile receives upper structure, avoids mutual flow of upper and lower layer materials, makes the integrity of subgrade stronger, and the anti-settling effect is more outstanding.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of highway subgrade, especially a highway subgrade anti-settlement structure. BACKGROUND

[0002] Highway is an indispensable part of modern traffic system, which provides people with convenient and fast traffic mode and promotes the development and progress of social economy. The subgrade directly supports the pavement structure and transmits the vehicle load to the foundation. It bears the rock-soil self-weight, pavement gravity and driving load transmitted by the pavement, and is the key part to ensure the durability and safety of the road in use.

[0003] The subgrade settlement is a highway disease with great harm, which is generally prevented from settlement by tamping the base layer and replacing the subgrade. However, both tamping the base layer and replacing the subgrade have the disadvantage of poor integrity of the subgrade, and the highway is prone to local damage or collapse after long-term use. Therefore, the highway subgrade anti-settlement structure is provided to improve it. SUMMARY

[0004] The utility model aims at solving at least one of the technical defects.

[0005] Therefore, one purpose of the utility model is to provide a highway subgrade anti-settlement structure to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a highway subgrade anti-settlement structure, which comprises two road edge seats arranged on both sides of the highway, the bottom surface of the road edge seat is fixedly connected with an expansion plate, a cushion layer is arranged between the two expansion plates, a filling layer is arranged above the cushion layer, a plurality of pressure bearing seats arranged above the cushion layer are arranged in the filling layer, a pressure bearing column is fixedly connected to the top of the pressure bearing seat, and a top plate is fixedly connected to the top of the pressure bearing column.

[0007] The top of the top plate is provided with a stress bar arranged in the road edge seat at both ends, a distribution bar is arranged vertically on the stress bar, a first backfill layer is arranged on the upper part of the distribution bar, a second backfill layer is arranged above the first backfill layer, the first backfill layer and the second backfill layer are made of high-strength material, a pavement layer is arranged above the second backfill layer, and geotextile is arranged between the cushion layer and the filling layer, above the distribution bar, between the first backfill layer and the second backfill layer, and between the second backfill layer and the pavement layer.

[0008] It is preferred that the outer side surface of the road edge seat is inclined, and a plurality of inclined drainage holes are arranged on the road edge seat.

[0009] Preferably, one end of the road side seat is provided with a butt joint groove, and the other end of the road side seat is fixedly connected with a butt joint block.

[0010] The road side seat provides lateral restraint for the road, so that each level of the road is restrained within the range of the road, avoiding loosening of each level below the road to both sides after the road is pressed. The expansion plate is arranged at the bottom of the road side seat, and provides a foundation for the road side seat, so that the road side seat is more stable. The outer side of the road side seat is provided with a slope, so that it can bear external earth pressure, thereby providing better support effect for the road. The road side seat is provided with a plurality of drainage holes, so that the accumulated water on the road can be easily drained from the road side seat, reducing the influence of rainwater on the roadbed. The road side seat is provided with a butt joint groove at one end and a butt joint block at the other end, facilitating the connection between adjacent road side seats. The adjacent road side seats are connected together, which is beneficial to improve the overall stability of the road.

[0011] Preferably, the filling layer is made of clay material, and the plurality of pressure bearing seats are uniformly arranged in the filling layer.

[0012] Preferably, the pressure bearing seat is in a conical structure as a whole, and a plurality of holes are arranged on the pressure bearing seat.

[0013] The cushion layer provides support for the upper structure. It is worth noting that during construction, the expansion plate and the foundation under the cushion layer should be rammed first. The filling layer is filled between the stress reinforcement and the cushion layer to provide certain support for the stress reinforcement. The pressure bearing seat cooperates with the pressure bearing column and the top plate to support the stress reinforcement, improving the stability of the stress reinforcement. The plurality of pressure bearing seats are uniformly arranged in the filling layer, which is beneficial to the stress balance of the stress reinforcement. A plurality of holes are arranged on the pressure bearing seat, so that the material in the filling layer falls into the holes, making the pressure bearing seat more stable. The pressure bearing seat is in a conical structure as a whole, which facilitates the diffusion of the pressure received by the pressure bearing seat outward, increases the stress area, and reduces the pressure.

[0014] Preferably, the stress reinforcement and the distribution reinforcement are bound together by the stirrup, and the inner side of the road side seat is provided with a slot, and the two ends of the stress reinforcement are inserted into the slot.

[0015] Preferably, the first backfill layer is made of gravel material, and the second backfill layer is made of sand and gravel material.

[0016] The technical scheme is as follows: the stress-bearing rib provides support for the upper structure, cooperates with the distribution rib to form a steel mesh in the roadbed, and is arranged in the road side seat at both ends, so that the anti-settling performance of the roadbed is greatly improved; the stress-bearing rib and the distribution rib are tied together through the stirrup, so that the stability between the two is effectively improved; the first backfill layer and the second backfill layer are backfilled below the pavement layer, and both are made of high-strength material, so that the roadbed has the advantages of high bearing capacity, good stability, and effective improvement of differential settlement; the geotextile is arranged between the layers to support the upper structure and avoid the mutual flow of materials in the upper and lower layers; and the geotextile has good corrosion resistance and water permeability and can well meet the requirements of the roadbed.

[0017] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0018] 1. The highway roadbed anti-settling structure is provided with a road side seat, an expansion version, a filling layer, a pressure bearing seat, a pressure bearing column, a top plate, a stress-bearing rib, a distribution rib, and a first backfill layer and a second backfill layer, the stress-bearing rib provides support for the upper structure, cooperates with the distribution rib to form a steel mesh in the roadbed, and is arranged in the road side seat at both ends, so that the anti-settling performance of the roadbed is greatly improved; the pressure bearing seat cooperates with the pressure bearing column and the top plate to support the stress-bearing rib, and the filling layer is additionally provided, so that the steel mesh is more stable; the first backfill layer and the second backfill layer are backfilled below the pavement layer, and both are made of high-strength material, so that the roadbed has the advantages of high bearing capacity, good stability, and effective improvement of differential settlement; the geotextile is arranged between the layers to support the upper structure and avoid the mutual flow of materials in the upper and lower layers, so that the roadbed has better overall integrity and anti-settling effect.

[0019] 2. The highway roadbed anti-settling structure is provided with a plurality of drainage holes in the road side seat, so that the accumulated water on the highway can be easily drained from the road side seat, and the influence of rainwater on the roadbed is reduced; a butt joint groove is formed at one end of the road side seat, and a butt joint block is arranged at the other end, so that the adjacent road side seats can be connected; the adjacent road side seats are connected together, which is beneficial to improving the overall stability of the highway; a plurality of holes are formed in the pressure bearing seat, so that the material in the filling layer can fall into the holes, and the pressure bearing seat is more stable; and the pressure bearing seat has a conical structure, so that the pressure received by the pressure bearing seat can be easily diffused outward, the stress area is increased, and the pressure is reduced.

[0020] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, wherein:

[0022] Fig. 1The overall structure schematic view of the utility model;

[0023] Fig. 2 The structure schematic view of the roadside seat of the utility model;

[0024] Fig. 3 The structure schematic view of the stress reinforcement and the distribution reinforcement of the utility model;

[0025] Fig. 4 The structure schematic view of the pressure bearing seat of the utility model.

[0026] In the figure: 1 - roadside seat, 2 - expansion plate, 3 - cushion layer, 4 - filling layer, 5 - pressure bearing seat, 6 - pressure bearing column, 7 - top plate, 8 - stress reinforcement, 9 - distribution reinforcement, 10 - first backfill layer, 11 - second backfill layer, 12 - pavement layer. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0028] In the utility model, unless explicitly defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] As Figs. 1-4 The utility model discloses, including two roadside seats 1 set in the two sides of the highway, the bottom surface fixedly connected with expansion plate 2 of roadside seat 1, the setting cushion layer 3 between two expansion plates 2, the filling layer 4 is provided above cushion layer 3, a plurality of pressure bearing seats 5 set above cushion layer 3 are provided in filling layer 4, the top fixedly connected with pressure bearing column 6 of pressure bearing seat 5, the top fixedly connected with top plate 7 of pressure bearing column 6;

[0030] The top of the top plate 7 is provided with a stress rib 8 arranged in the road side seat 1, the stress rib 8 is provided with a distribution rib 9 arranged vertically, the upper part of the distribution rib 9 is provided with a first backfill layer 10, the upper part of the first backfill layer 10 is provided with a second backfill layer 11, the first backfill layer 10 and the second backfill layer 11 are made of high-strength material, the upper part of the second backfill layer 11 is provided with a road surface layer 12, and geotextiles are arranged between the cushion layer 3 and the filling layer 4, above the distribution rib 9, between the first backfill layer 10 and the second backfill layer 11, and between the second backfill layer 11 and the road surface layer 12.

[0031] In the embodiment 1, the outer side of the road side seat 1 is provided with an inclined surface, and a plurality of inclined drainage holes are arranged on the road side seat 1. One end of the road side seat 1 is provided with a butt joint groove, and the other end of the road side seat 1 is fixedly connected with a butt joint block. The road side seat 1 provides side restraint for the road, so that each level of the road is restrained within the range of the road, and the lower layers of the road are prevented from loosening to both sides when the road is pressed. The expansion plate 2 is arranged at the bottom of the road side seat 1, which provides a foundation for the road side seat 1, so that the road side seat 1 is more stable. The outer side of the road side seat 1 is provided with an inclined surface, so that it can bear the external earth pressure and provide better support effect for the road. A plurality of drainage holes are arranged on the road side seat 1, so that the accumulated water on the road can be easily drained from the road side seat 1, reducing the influence of rainwater on the roadbed. The butt joint groove is arranged at one end of the road side seat 1, and the butt joint block is arranged at the other end, so that the adjacent road side seats 1 can be connected. The adjacent road side seats 1 are connected together, which is beneficial to improve the overall stability of the road.

[0032] In the embodiment 2, the filling layer 4 is made of clay material, and a plurality of pressure bearing seats 5 are uniformly arranged in the filling layer 4. The pressure bearing seat 5 has a whole conical structure, and a plurality of holes are arranged on the pressure bearing seat 5. The cushion layer 3 provides support for the upper structure, and it is worth noting that during construction, the expansion plate 2 and the foundation below the cushion layer 3 should be tamped first. The filling layer 4 is filled between the stress rib 8 and the cushion layer 3, which provides certain support for the stress rib 8. The pressure bearing seat 5 cooperates with the pressure bearing column 6 and the top plate 7 to support the stress rib 8, thereby improving the stability of the stress rib 8. A plurality of pressure bearing seats 5 are uniformly arranged in the filling layer 4, which is beneficial to the stress balance of the stress rib 8. A plurality of holes are arranged on the pressure bearing seat 5, so that the material in the filling layer 4 can fall into the holes, making the pressure bearing seat 5 more stable. The pressure bearing seat 5 has a whole conical structure, which is convenient for the pressure received by the pressure bearing seat 5 to diffuse outward, thereby increasing the stress area and reducing the pressure.

[0033] The stress reinforcement 8 and the distribution reinforcement 9 are tied together through the stirrup, the inner side of the road side seat 1 is provided with a slot, and the two ends of the stress reinforcement 8 are inserted into the slot. The first backfill layer 10 adopts gravel material, and the second backfill layer 11 adopts sand and gravel material. The stress reinforcement 8 provides support for the upper structure, cooperates with the distribution reinforcement 9, forms a steel mesh in the roadbed, and is arranged in the road side seat 1 at two ends, so that the anti-settlement performance of the roadbed can be greatly improved. The stress reinforcement 8 and the distribution reinforcement 9 are tied together through the stirrup, so that the stability between the two can be effectively improved. The first backfill layer 10 and the second backfill layer 11 are backfilled below the pavement layer 5, and both adopt high-strength materials, so that the roadbed has the advantages of high bearing capacity, good stability and effectively improving differential settlement. The geotextile is arranged between the layers, the geotextile supports the upper structure, and the materials of the upper and lower layers are prevented from flowing into each other. The geotextile has good corrosion resistance and water permeability, and can well adapt to the needs of the roadbed.

[0034] The working principle of the utility model is as follows:

[0035] S1, the stress reinforcement 8 provides support for the upper structure, cooperates with the distribution reinforcement 9, forms a steel mesh in the roadbed, and is arranged in the road side seat 1 at two ends, so that the anti-settlement performance of the roadbed can be greatly improved;

[0036] S2, the pressure bearing seat 5 cooperates with the pressure bearing column 6 and the top plate 7 to support the stress reinforcement 8, and the filling layer 4 is additionally provided, so that the steel mesh is more stable. The first backfill layer 10 and the second backfill layer 11 are backfilled below the pavement layer 5, and both adopt high-strength materials, so that the roadbed has the advantages of high bearing capacity, good stability and effectively improving differential settlement;

[0037] S3, the geotextile is arranged between the layers, the geotextile supports the upper structure, and the materials of the upper and lower layers are prevented from flowing into each other, so that the roadbed is more integral.

[0038] Compared with the prior art, the utility model has the following beneficial effects:

[0039] 1、The highway subgrade anti-settlement structure, through setting road edge seat 1, expansion version 2, filling layer 4, pressure bearing seat 5, pressure bearing column 6, top plate 7, stress reinforcement 8, distribution reinforcement 9 and first backfill layer 10, second backfill layer 11 and other structures, stress reinforcement 8 provides support for the upper structure, cooperates with distribution reinforcement 9, forms a reinforced mesh in the subgrade, and its two ends are arranged in the road edge seat 1, so that the anti-settlement performance of the subgrade can be greatly improved. The pressure bearing seat 5 cooperates with the pressure bearing column 6 and the top plate 7 to support the stress reinforcement 8, and the filling layer 4 is assisted, so that the reinforced mesh is more stable. The first backfill layer 10 and the second backfill layer 11 are backfilled below the pavement layer 5, both of which are made of high-strength materials, so that the subgrade has the advantages of high bearing capacity, good stability and effective improvement of differential settlement. Geotextile is arranged between each layer, which receives the upper structure and prevents the materials of the upper and lower layers from flowing into each other, so that the overall integrity of the subgrade is stronger and the anti-settlement effect is more outstanding.

[0040] 2、The highway subgrade anti-settlement structure, a plurality of drainage holes are formed in the road edge seat 1, so that the accumulated water on the highway can be easily drained from the road edge seat 1, reducing the influence of rainwater on the subgrade. A butt joint groove is formed at one end of the road edge seat 1, and a butt joint block is arranged at the other end, facilitating the connection between adjacent road edge seats 1. The adjacent road edge seats 1 are connected together, which is conducive to improving the overall stability of the highway. A plurality of holes are formed in the pressure bearing seat 5, so that the materials in the filling layer 4 can fall into the holes, making the pressure bearing seat 5 more stable. The pressure bearing seat 5 is in a conical structure as a whole, which facilitates the outward diffusion of the pressure it receives, increases the stress area and reduces the pressure.

Claims

1. A highway embankment anti-settlement structure comprising two road edge seats (1) arranged on both sides of the highway; characterized in that, The bottom surface of the roadside seat (1) is fixedly connected with an expansion plate (2), a cushion layer (3) is arranged between the two expansion plates (2), a filling layer (4) is arranged above the cushion layer (3), a plurality of pressure bearing seats (5) arranged above the cushion layer (3) are arranged in the filling layer (4), a pressure bearing column (6) is fixedly connected to the top of the pressure bearing seat (5), and a top plate (7) is fixedly connected to the top of the pressure bearing column (6); The top of the top plate (7) is provided with a stress bar (8) arranged in the roadside seat (1), a distribution bar (9) arranged vertically to the stress bar (8) is arranged on the stress bar (8), a first backfill layer (10) is arranged on the upper part of the distribution bar (9), a second backfill layer (11) is arranged above the first backfill layer (10), the first backfill layer (10) and the second backfill layer (11) are made of high-strength material, a road surface layer (12) is arranged above the second backfill layer (11), and geotextiles are arranged between the cushion layer (3) and the filling layer (4), above the distribution bar (9), between the first backfill layer (10) and the second backfill layer (11), and between the second backfill layer (11) and the road surface layer (12).

2. A highway subbase anti-settlement structure as claimed in claim 1, wherein: The outer side of the roadside seat (1) is inclined, and a plurality of inclined drainage holes are formed in the roadside seat (1).

3. A highway subbase anti-settlement structure as defined in claim 2, wherein: One end of the roadside seat (1) is provided with a butt joint groove, and the other end of the roadside seat (1) is fixedly connected with a butt joint block.

4. A highway subbase anti-settlement structure as defined in claim 3 wherein: The filling layer (4) is made of clay material, and a plurality of pressure bearing seats (5) are uniformly arranged in the filling layer (4).

5. A highway subbase anti-settlement structure as defined in claim 4, wherein: The pressure bearing seat (5) is in a conical structure, and a plurality of holes are formed in the pressure bearing seat (5).

6. A highway subbase anti-settlement structure as defined in claim 5 wherein: The stress bar (8) and the distribution bar (9) are tied together by a stirrup, the inner side of the roadside seat (1) is provided with a slot, and the two ends of the stress bar (8) are inserted into the slot.

7. A highway subbase anti-settlement structure as defined in claim 6 wherein: The first backfill layer (10) is made of gravel material, and the second backfill layer (11) is made of sand and gravel material.

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