A widened and spliced ​​roadbed structure

Abstract

The utility model relates to the technical field of road construction, and discloses a widened and spliced ​​roadbed structure, including a basic roadbed and a new roadbed, wherein a ground bolt groove is provided on the surface of the asphalt layer of the new roadbed, and a fixing bolt is provided inside the ground bolt groove. The utility model has a reasonable structure, and the new roadbed large-grained concrete layer is filled after the position of the fixing bolt is determined by connecting the new roadbed pile layer with the fixing bolt. After the filling is completed, the connecting pipe and the fixing pile are inserted, so that the connecting pipe penetrates the concrete layer and docks with the new roadbed large-grained concrete layer, and then the new roadbed concrete layer is poured. The purpose is that if the new roadbed sinks after a vehicle passes for a long time, the fixing pile can be pulled out, and the new roadbed large-grained concrete layer can be filled with a foaming agent through the filling groove provided by the connecting pipe. The foaming agent can effectively lift the ground at the connection, so that the difference in height at the connection between the new and old roadbeds becomes smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a widened and spliced ​​roadbed structure. Background Art

[0002] With the increase in traffic volume, existing roads are facing the need to be widened. In the expansion of roads, the old roads are renovated and the roadbed of the old roads is widened to meet the use needs while reducing land occupation and speeding up the construction. In the process of widening the roadbed, the widened roadbed will face settlement during use. The inconsistency of settlement between the new roadbed and the old roadbed can easily lead to cracks and tilts on the road surface.

[0003] A roadbed widening and splicing roadbed structure disclosed in the Chinese utility model patent application disclosure CN217104538U, although the support of the new roadbed is strengthened by fixed piles, the bearing capacity is enhanced, the later settlement of the new roadbed is reduced, the settlement difference between the new roadbed and the old roadbed is reduced, and the support and integrity are enhanced by supporting grids, the new base layer is strengthened and fixed to the old base layer by connecting rods, and the new concrete layer is strengthened and fixed to the old concrete layer by central connecting columns, which reduces the later cracking. However, the method of supporting only by vertical fixed piles cannot completely avoid sinking. During the later road maintenance, the grid will also have a great impact on the maintenance of the widened roadbed, and the widened roadbed cannot be repaired quickly. Fractures will also occur at the joint of the roadbed. Therefore, we propose a new roadbed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a widened and spliced ​​roadbed structure, which solves the problem that the roadbed cannot be repaired after sinking and the connection will be broken when the path sinks.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a widened spliced ​​roadbed structure, including a basic roadbed, the basic roadbed including a basic asphalt layer, a basic water seepage layer, and a concrete layer, a basic water seepage layer is provided at the bottom of the basic asphalt layer, and a concrete layer is provided at the bottom of the basic water seepage layer;

[0008] A new roadbed is spliced ​​on one side of the basic asphalt layer, and the new roadbed includes a new roadbed asphalt layer, a new roadbed reinforcement layer, a new roadbed water seepage layer, a new roadbed concrete layer, a new roadbed large-particle concrete layer, and a new roadbed base pile layer. A ground bolt groove is opened on the surface of the new roadbed asphalt layer, and a fixing bolt is arranged inside the ground bolt groove. A connecting plate is clamped inside the new roadbed asphalt layer, and a connecting pipe is arranged inside the connecting plate, and a fixing pile is penetrated through the internal thread of the connecting pipe.

[0009] Optionally, the base asphalt layer is spliced ​​with the new roadbed asphalt layer, the base seepage layer is spliced ​​with the new roadbed seepage layer, and one side of the base seepage layer protrudes forward and fits with the concave part of the new roadbed.

[0010] Optionally, a filling groove is provided inside the connecting pipe, and a rubber block is provided on one side of the fixing pile, and the rubber block and the filling groove are adapted to each other.

[0011] Optionally, a metal tie rod is provided inside the fixing bolt, the upper portion of the metal tie rod is fixedly connected to a new roadbed reinforcement layer, and the lower portion of the metal tie rod is fixedly connected to a new roadbed pile layer.

[0012] Optionally, the large-particle concrete layer is formed by crushing a newly laid concrete roadbed, and the new roadbed water seepage layer is formed by mixing small-particle concrete and elastic rubber particles.

[0013] Optionally, the new roadbed pile layer is made of high-strength concrete with a grade of C100 mixed with an anti-aging agent.

[0014] In summary, the technical effects and advantages of the utility model are:

[0015] 1. The utility model has a reasonable structure. The pile layer of the new roadbed and the fixing bolts are connected to each other. After the position of the fixing bolts is determined, the large-grained concrete layer of the new roadbed is filled. After the filling is completed, the connecting pipe and the fixing pile are inserted, so that the connecting pipe passes through the concrete layer and docks with the large-grained concrete layer of the new roadbed. Then, the new roadbed concrete layer is poured. The purpose is that if the new roadbed sinks after a long period of vehicle passing, the fixing pile can be pulled out, and the large-grained concrete layer of the new roadbed can be filled with a foaming agent through the filling groove opened by the connecting pipe. The foaming agent can effectively lift the ground at the connection, so that the difference in height at the connection between the new and old roadbeds becomes smaller, and the difference in height at the connection is large, so as to avoid the situation that the vehicle will fall and crush when passing, causing the new roadbed to sink further.

[0016] 2. In the utility model, the downward force will be conducted through the fixing bolts when the vehicle rolls over, and the downward pressure will be conducted out, which effectively reduces the subsidence of the roadbed and reduces the height that needs to be lifted up by the foaming agent when the new roadbed is subsequently filled with a drop. Because the new roadbed reinforcement layer is arranged at the lower part of the asphalt layer, which is also a position with higher priority of force, the downward pressure is also conducted through the fixing bolts at the connection point, which reduces the subsidence of the new roadbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the connecting plate of the utility model;

[0019] Figure 3 It is a schematic diagram of the new roadbed structure of the utility model.

[0020] In the figure: 1. Basic roadbed; 101. Basic asphalt layer; 102. Basic seepage layer; 103. Concrete layer; 2. New roadbed; 201. New roadbed asphalt layer; 202. New roadbed reinforcement layer; 203. New roadbed seepage layer; 204. New roadbed concrete layer; 205. New roadbed large-grained concrete layer; 206. New roadbed bottom pile layer; 3. Fixing bolt; 4. Connecting plate; 5. Connecting pipe; 6. Fixing pile; 7. Filling groove; 8. Rubber block; 9. Metal reinforcement. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: Reference Figure 1-Figure 3 A widened spliced ​​roadbed structure shown includes a widened spliced ​​roadbed structure, including a basic roadbed 1, the basic roadbed 1 includes a basic asphalt layer 101, a basic water seepage layer 102, and a concrete layer 103, the base asphalt layer 101 is provided with a basic water seepage layer 102 at the bottom, and the base water seepage layer 102 is provided with a concrete layer 103 at the bottom;

[0023] A new roadbed 2 is spliced ​​on one side of the basic asphalt layer 101, and the new roadbed 2 includes a new roadbed asphalt layer 201, a new roadbed reinforcement layer 202, a new roadbed water seepage layer 203, a new roadbed concrete layer 204, a new roadbed large-particle concrete layer 205, and a new roadbed bottom pile layer 206. A ground bolt groove is opened on the surface of the new roadbed asphalt layer 201, and a fixing bolt 3 is arranged inside the ground bolt groove. A connecting plate 4 is clamped inside the new roadbed asphalt layer 201, and a connecting pipe 5 is arranged inside the connecting plate 4. The internal thread of the connecting pipe 5 is penetrated by a fixing pile 6.

[0024] As a preferred implementation in this embodiment, Figure 1-Figure 3As shown, a ground bolt groove is provided on the surface of the new roadbed asphalt layer 201, a fixing bolt 3 is provided inside the ground bolt groove, a connecting plate 4 is clamped inside the new roadbed asphalt layer 201, a connecting pipe 5 is provided inside the connecting plate 4, a fixing pile 6 is penetrated through the internal thread of the connecting pipe 5, the basic asphalt layer 101 and the new roadbed asphalt layer 201 are spliced ​​with each other, the basic water seepage layer 102 and the new roadbed water seepage layer 203 are spliced ​​with each other, one side of the basic water seepage layer 102 protrudes forward and is adapted to the inner concave part of the new roadbed 2, a filling groove 7 is provided inside the connecting pipe 5, a rubber block 8 is provided on one side of the fixing pile 6, the rubber block 8 and the filling groove 7 are adapted to each other, and the fixing The bolt 3 is provided with a metal tie bar 9 inside, the upper part of the metal tie bar 9 is fixedly connected with a new roadbed reinforcement layer 202, the lower part of the metal tie bar 9 is fixedly connected with a new roadbed pile layer 206, the large-grain concrete layer 205 is formed by crushing the newly laid concrete roadbed, the new roadbed water seepage layer 203 is a mixture of small-grain concrete and elastic rubber particles, and the new roadbed pile layer 206 is made of a C100 high-strength concrete mixed with an anti-aging agent. In the traditional roadbed widening process, the new roadbed pile layer 206 is first connected to the fixed bolt 3, and after the position of the fixed bolt 3 is determined, the new roadbed large-grain concrete layer 205 is filled, and after the filling is completed, The connecting pipe 5 is inserted into the fixing pile 6, so that the connecting pipe 5 penetrates the concrete layer 103 and docks with the large-grained concrete layer 205 of the new roadbed, and then the new roadbed concrete layer 204 is poured. The purpose is that if the new roadbed 2 sinks after a long period of vehicle passing, the fixing pile 6 can be pulled out, and the large-grained concrete layer 205 of the new roadbed can be filled with a foaming agent through the filling groove 7 provided in the connecting pipe 5. The foaming agent can effectively lift the ground at the connection, so that the height difference at the connection between the new and old roadbeds becomes smaller, and avoid the situation where the connection has a large height difference, the vehicle will fall and crush when passing, and the new roadbed 2 will sink further. At the same time, because the fixing bolt 3 is The inclination, when the vehicle rolls over, the downward force will be transmitted through the fixing bolt 3, and the downward pressure will be guided out, which effectively reduces the subsidence of the roadbed and reduces the height that needs to be lifted by the foaming agent when the new roadbed 2 is subsequently filled with the gap. Because the new roadbed reinforcement layer 202 is arranged at the lower part of the asphalt layer 201, which is also a position with higher priority of force, the downward pressure is also transmitted through the fixing bolt 3 at the connection point, which reduces the subsidence of the new roadbed 2. The connection between the connecting pipe 5 and the fixing pile 6 is connected by the connecting plate 4, which increases the fixation of the new roadbed 2 and the basic roadbed 1, avoiding cracks at the joint and broken connections when the roadbed sinks.

[0025] How this utility works:

[0026] First, connect the pile layer 206 of the new roadbed with the fixing bolt 3, and after determining the position of the fixing bolt 3, fill the large-grained concrete layer 205 of the new roadbed. After filling, insert the connecting pipe 5 and the fixing pile 6, so that the connecting pipe 5 passes through the concrete layer 103 and docks with the large-grained concrete layer 205 of the new roadbed, and then pour the new roadbed concrete layer 204. The purpose is that if the new roadbed 2 sinks after a long period of vehicle passing, the fixing pile 6 can be pulled out, and the large-grained concrete layer 205 of the new roadbed can be filled with a foaming agent through the filling groove 7 opened in the connecting pipe 5. The foaming agent can effectively lift the ground at the connection, so that the height difference at the connection between the new and old roadbeds becomes smaller, and a large height difference at the connection is avoided. When passing through, it will fall and roll over, causing the new roadbed 2 to sink further. At the same time, because the fixing bolt 3 is inclined, when the vehicle rolls over, the downward force will be transmitted through the fixing bolt 3 to guide the downward pressure, effectively reducing the roadbed sinking and reducing the height that needs to be lifted by the foaming agent when the new roadbed 2 is subsequently filled with a drop. Because the new roadbed reinforcement layer 202 is arranged at the lower part of the asphalt layer 201, it is also a position that is more preferentially stressed. Therefore, the downward pressure is also transmitted through the fixing bolt 3 at the connection point, reducing the sinking of the new roadbed 2. The connection between the connecting pipe 5 and the fixing pile 6 is connected by the connecting plate 4, which increases the fixation of the new roadbed 2 and the basic roadbed 1, avoiding cracks at the joint and broken connections when the roadbed sinks.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A widened and spliced ​​roadbed structure, comprising a basic roadbed (1), characterized in that: The basic roadbed (1) comprises a basic asphalt layer (101), a basic water seepage layer (102), and a concrete layer (103); a basic water seepage layer (102) is provided below the basic asphalt layer (101), and a concrete layer (103) is provided below the basic water seepage layer (102); A new roadbed (2) is spliced ​​onto one side of the base asphalt layer (101), wherein the new roadbed (2) comprises a new roadbed asphalt layer (201), a new roadbed reinforcement layer (202), a new roadbed water seepage layer (203), a new roadbed concrete layer (204), a new roadbed large-grain concrete layer (205), and a new roadbed bottom pile layer (206). A ground bolt groove is provided on the surface of the new roadbed asphalt layer (201), a fixing bolt (3) is provided inside the ground bolt groove, a connecting plate (4) is clamped inside the new roadbed asphalt layer (201), a connecting pipe (5) is provided inside the connecting plate (4), and a fixing pile (6) is penetrated through the internal thread of the connecting pipe (5).

2. The widened and spliced ​​roadbed structure according to claim 1 is characterized in that: The base asphalt layer (101) and the new roadbed asphalt layer (201) are spliced ​​together, and the base water seepage layer (102) and the new roadbed water seepage layer (203) are spliced ​​together. One side of the base water seepage layer (102) protrudes forward and fits in with the inner concave part of the new roadbed (2).

3. The widened and spliced ​​roadbed structure according to claim 1 is characterized in that: A filling groove (7) is provided inside the connecting pipe (5), and a rubber block (8) is provided on one side of the fixing pile (6), wherein the rubber block (8) and the filling groove (7) are adapted to each other.

4. The widened and spliced ​​roadbed structure according to claim 1 is characterized in that: A metal tie bar (9) is provided inside the fixing bolt (3), the upper portion of the metal tie bar (9) is fixedly connected to a new roadbed reinforcement layer (202), and the lower portion of the metal tie bar (9) is fixedly connected to a new roadbed pile layer (206).

5. The widened and spliced ​​roadbed structure according to claim 1 is characterized in that: The large-particle concrete layer (205) is formed by crushing a newly laid concrete roadbed, and the new roadbed water seepage layer (203) is formed by mixing small-particle concrete and elastic rubber particles.

6. The widened and spliced ​​roadbed structure according to claim 1 is characterized in that: The new roadbed pile layer (206) is made of C100 high-strength concrete mixed with an anti-aging agent.

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