A structure for treating bridge approach slab ...

Abstract

This utility model relates to a structure for treating bridge abutment slab settlement. The pile foundation has piles extending deep into the bearing layer beneath the soft soil foundation. A support wall is located behind the pile foundation and situated on the soft soil foundation. From bottom to top, the pile foundation includes a pile cap, an abutment, and abutment cap. One end of a slab rests on the abutment cap, and the other end rests on the support wall. The support wall has a tenon at its rear to resist the thrust of the telescopic mechanism. A wedge-shaped settlement compensation block and a telescopic mechanism are arranged on the support wall between the slab and the tenon. The lower end of the wedge-shaped settlement compensation block is inserted into the gap between the slab and the support wall. One end of the telescopic mechanism abuts the tenon, and the other end abuts the wedge-shaped settlement compensation block. During its extension, the telescopic mechanism pushes the wedge-shaped settlement compensation block towards the slab to lift the rear of the slab. The advantages are: the structure is reasonably and reliably designed, easy to operate, improves the construction efficiency of treating bridge abutment slab settlement, has low cost, allows for earlier traffic opening, and facilitates residents' travel.

Description

Technical Field

[0001] This utility model relates to the field of road technology, specifically to a structure for treating bridge approach slab ... Background Technology

[0002] In the field of highway and urban road construction, the problem of bridge approach slab settlement in soft soil areas has always been a difficult problem for the engineering community. The main reason is that in soft soil areas, the bridge abutment is generally supported by pile foundations driven into the bearing layer, and the abutment sits on the pile foundation. Therefore, the settlement of the abutment is almost negligible. However, although the foundation under the backfill behind the abutment has undergone certain technical treatment, some degree of settlement is almost inevitable. This causes differential settlement between the abutment and the backfill behind the abutment, resulting in bridge approach slab settlement, which seriously affects the safety of vehicle traffic. At present, the main methods to solve the problem of bridge approach slab settlement are to increase the compaction of the backfill behind the abutment, fill with permeable materials, and lay geosynthetic materials. These methods can alleviate the problem of bridge approach slab settlement to a certain extent, but they cannot solve the problem of treatment after the problem occurs. Therefore, proposing a structure for treating bridge approach slab settlement is of great significance for quickly dealing with bridge approach slab settlement and opening traffic as soon as possible. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a structure for treating bridge approach slab settlement. This structure has the advantages of simple operation, high treatment efficiency and low cost, and can quickly treat bridge approach slab settlement, thus overcoming the shortcomings of the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A structure for treating bridge approach slab ...

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the slab is provided with grouting holes for injecting grout into the voided area below the slab.

[0008] Furthermore, wedge-shaped settlement compensation blocks and telescopic mechanisms are evenly distributed on both sides of the mounting plate between the mounting plate and the tenon on the supporting wall.

[0009] Furthermore, the telescopic mechanism is a jack.

[0010] Furthermore, the lower end of the supporting wall has irregular serrations.

[0011] Furthermore, beams and slabs flush with the platform are erected on the platform cap.

[0012] Furthermore, the abutment cap has a first notch, and the beam plate rests within the first notch of the abutment cap.

[0013] Furthermore, supports are installed between the cap and the beam slab.

[0014] Furthermore, a second notch is provided on the stage cap, and the board is placed inside the second notch of the stage cap.

[0015] The beneficial effects of this utility model are:

[0016] 1) When the foundation behind the abutment settles, the supporting wall will settle accordingly, causing the area behind the approach slab to sink, resulting in bridge approach slab ...

[0017] 2) The utility model has a reasonable and reliable structural design, is easy to operate, improves the construction efficiency of bridge abutment slab slab treatment, and has low cost, so that traffic can be opened as soon as possible and residents can travel more conveniently.

[0018] 3) After the approach slab is raised, the area below the approach slab will be voided. Therefore, grout can be injected into the voided area below the approach slab through the grouting hole so that the grout fills the voided area below the approach slab. After the grouting is completed, the pavement structure at the junction of the approach slab and the roadbed is repaired to complete the treatment of bridge approach slab settlement.

[0019] 4) The lower end of the support wall has irregular serrations to enhance the friction between the support wall and the foundation and prevent the support wall from sliding back and forth. Attached Figure Description

[0020] Figure 1 This is a vertical layout diagram of the structure used to treat bridge approach slab ...

[0021] Figure 2 This is a plan view of the structure used to treat bridge approach slab ...

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Pile foundation, 2. Pile cap, 3. Abutment, 4. Abutment cap, 5. Bearing, 6. Beam and slab, 7. Approach slab, 7-1. Grouting hole, 8. Support wall, 9. Wedge-shaped settlement compensation block, 10. Expansion joint. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0025] Example 1

[0026] like Figure 1 , Figure 2 As shown, a structure for treating bridge approach slab ...

[0027] The system comprises a pile foundation 1, a supporting wall 8, and an approach slab 7. The piles in the pile foundation 1 extend into the bearing layer beneath the soft soil foundation. The supporting wall 8 is located behind the pile foundation 1 and situated on the soft soil foundation. A pile cap 2 is mounted on the pile foundation 1, an abutment 3 is mounted on the pile cap 2, and a cap 4 is mounted on the abutment 3. Thus, from bottom to top, the pile foundation 1 consists of a pile cap 2, an abutment 3, and a cap 4. One end of the approach slab 7 rests on the cap 4, and the other end rests on the supporting wall 8. The approach slab 7 is horizontal. The supporting wall 8 has a tenon at its rear to resist the thrust of the expansion joint 10. A wedge-shaped settlement compensation block 9 and the expansion joint 10 are arranged on the supporting wall 8 between the approach slab 7 and the tenon. The wedge-shaped settlement compensation block 9 can... The support wall 8 can move freely back and forth, while the lower end of the wedge-shaped settlement compensation block 9 is inserted into the gap between the approach slab 7 and the support wall 8. One end of the telescopic mechanism 10 abuts against the tenon, and the other end of the telescopic mechanism 10 abuts against the wedge-shaped settlement compensation block 9. When the foundation behind the abutment settles, the support wall 8 will settle accordingly, causing the area behind the approach slab 7 to sink, resulting in bridge approach slab ...

[0028] Example 2

[0029] like Figure 1 , Figure 2 As shown, this embodiment is a further improvement on embodiment 1, as detailed below:

[0030] The approach slab 7 is provided with grouting holes 7-1. After the approach slab 7 is raised, the area below the approach slab 7 will be voided. Therefore, grout can be injected into the voided area below the approach slab 7 through the grouting holes 7-1 so that the grout fills the voided area below the approach slab 7. The injected grout can be a fast-setting early-strength cement or water glass grout. After the grouting is completed, the pavement structure at the junction of the approach slab 7 and the roadbed is repaired to complete the treatment of bridge approach slab settlement.

[0031] Example 3

[0032] like Figure 1 , Figure 2 As shown, this embodiment is a further improvement on embodiment 1 or 2, as detailed below:

[0033] On the support wall 8, wedge-shaped settlement compensation blocks 9 and telescopic mechanisms 10 are evenly distributed on both sides of the mounting plate 7 between the mounting plate 7 and the tenon. In this embodiment, the telescopic mechanism 10 can preferably be a jack. Of course, this is just an exemplary description, and other structures are not excluded in actual application.

[0034] Example 4

[0035] like Figure 1 As shown, this embodiment is a further improvement on embodiment 1, 2, or 3, as detailed below:

[0036] The lower end of the support wall 8 has irregular serrations to enhance the friction between it and the foundation and prevent the support wall 8 from sliding back and forth.

[0037] Example 5

[0038] like Figure 1 , Figure 2 As shown, this embodiment is a further improvement on any one of embodiments 1 to 4, as detailed below:

[0039] A beam slab 6, flush with the slab 7, is erected on the cap 4. The cap 4 has a first notch, and the beam slab 6 rests within the first notch of the cap 4. Supports 5 are arranged between the cap 4 and the beam slab 6.

[0040] Example 6

[0041] like Figure 1 , Figure 2 As shown, this embodiment is a further improvement on any one of embodiments 1 to 5, as detailed below:

[0042] The platform cap 4 also has a second notch, and the platform board 7 is placed inside the second notch of the platform cap 4.

[0043] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A structure for treating a bridgehead bump disease, characterized by, include: The pile foundation (1), the supporting wall (8), and the approach slab (7) are arranged in a pile foundation (1), wherein the pile tip penetrates into the bearing layer below the soft soil foundation. The supporting wall (8) is located behind the pile foundation (1) and on the soft soil foundation. The pile foundation (1) is provided with a pile cap (2), abutment (3), and abutment cap (4) from bottom to top. One end of the approach slab (7) rests on the abutment cap (4), and the other end of the approach slab (7) rests on the supporting wall (8). The supporting wall (8) is provided with a rear section for resisting The telescopic mechanism (10) pushes the tenon with a thrust. A wedge-shaped settlement compensation block (9) and the telescopic mechanism (10) are arranged on the support wall (8) between the platform (7) and the tenon. The lower end of the wedge-shaped settlement compensation block (9) is inserted into the gap between the platform (7) and the support wall (8). One end of the telescopic mechanism (10) abuts against the tenon, and the other end abuts against the wedge-shaped settlement compensation block (9). During the extension process, the wedge-shaped settlement compensation block (9) is pushed towards the platform (7) to lift the rear of the platform (7).

2. The structure for treating a bridgehead bump disease according to claim 1, wherein The slab (7) is provided with grouting holes (7-1) for injecting grout into the voided area below the slab (7).

3. The structure for treating a bridge end bump disease according to claim 1, wherein On the supporting wall (8), wedge-shaped settlement compensation blocks (9) and telescopic mechanisms (10) are evenly distributed on both sides of the mounting plate (7) between the mounting plate (7) and the tenon.

4. The structure for treating a bridgehead bump disease according to claim 1 or 3, wherein The telescopic mechanism (10) is a jack.

5. A structure for treating bridge approach slab ... The lower end of the supporting wall (8) has irregular serrations.

6. The structure for treating bridge approach slab ... A beam (6) is erected on the platform cap (4) and is flush with the platform board (7).

7. The structure for treating a bridge end bump disease according to claim 6, wherein The platform cap (4) has a first notch, and the beam plate (6) rests in the first notch of the platform cap (4).

8. The structure for treating a bridge end bump disease according to claim 7, wherein Supports (5) are arranged between the cap (4) and the beam (6).

9. The structure for treating a bridge end bump disease according to claim 1, wherein The platform cap (4) has a second notch, and the platform board (7) rests in the second notch of the platform cap (4).

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