Waterproof structure for highway subgrade settlement joint

Abstract

The utility model discloses a highway roadbed settlement joint waterproof structure, it includes a plurality of bearing steel sheet that is embedded in roadbed settlement joint, both ends of bearing steel sheet all extend to the inside of roadbed, the four corners of bearing steel sheet top all are equipped with movable steel column who sets up, a plurality of bearing steel sheet top bonding has the waterstop in settlement joint, both ends of waterstop all extend to the inside of roadbed. The utility model discloses a plurality of bearing steel sheet implants settlement joint, guarantees the stability at the foundation expansion joint, and the waterproof treatment is carried out to settlement joint place through oil paste filling material one and pitch tow filling material cooperation waterstop and rubber board, and the arrangement of waterstop and rubber board increases the waterproof effect at settlement joint place, and waterstop still obtains the support of a plurality of bearing steel plates, and the resistance is guaranteed, can reach the purpose that adopts steel plate and steel bar to reinforce settlement joint, increases the structural strength at settlement joint place, cooperates waterstop and rubber strip double -layer protection and improves the waterproof effect of settlement joint.

Description

Technical Field

[0001] This utility model belongs to the field of highway subgrade technology, and in particular relates to a waterproof structure for settlement joints in highway subgrades. Background Technology

[0002] Roadbed settlement joints are regular gaps pre-set in corresponding parts of the roadbed to prevent irregular cracks and damage caused by uneven settlement of the roadbed. They provide the roadbed with a certain amount of expansion and contraction space when settlement deformation occurs, effectively release stress, and avoid large additional internal forces caused by the constraint of deformation, thereby ensuring the stability and durability of the overall roadbed structure.

[0003] Roadbed settlement joints typically rely on flexible materials such as asphalt hemp fiber and polystyrene foam board to achieve waterproofing. To improve the waterproofing effect of roadbed settlement joints, we designed a waterproofing structure for highway roadbed settlement joints. We reinforce the settlement joints with steel plates and steel bars to increase the structural strength at the settlement joints. We also use waterstops and rubber strips for double-layer protection to improve the waterproofing effect of the settlement joints. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof structure for settlement joints in highway subgrades. It has the advantages of using steel plates and reinforcing bars to strengthen the settlement joints, increasing the structural strength of the settlement joints, and using waterstops and rubber strips for double-layer protection to improve the waterproof effect of the settlement joints, thereby solving the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a waterproof structure for roadbed settlement joints, comprising multiple bearing steel plates pre-embedded in the roadbed settlement joints, both ends of the bearing steel plates extending into the roadbed, and movable steel columns penetrating the four corners of the top of the bearing steel plates, with a waterstop strip bonded to the top of the multiple bearing steel plates located in the settlement joint, both ends of the waterstop strip extending into the roadbed, an grease filler material filling the bottom of the settlement joint cavity below the bearing steel plates, an asphalt-impregnated hemp filler material filling the area below the bearing steel plates and above the waterstop strip above the grease filler material, a top groove at the top of the roadbed settlement joint, a rubber sheet paved inside the top groove, and an aluminum alloy pressure plate above the rubber sheet.

[0006] Preferably, the aluminum alloy pressure plate has a V-shape in the middle, and the top of the steel column passes through the rubber plate and the aluminum alloy pressure plate.

[0007] Preferably, the top of the steel column surface is provided with an external thread, and a nut is threadedly connected to the surface of the external thread, with the bottom of the nut abutting against the top of the aluminum alloy pressure plate.

[0008] Preferably, both ends of the bottom of the aluminum alloy pressure plate are provided with sharp points, which are embedded inside the rubber plate.

[0009] Preferably, a pad is welded to the surface of the steel column, and the pad rests against the top of the supporting steel plate.

[0010] Preferably, the space between the rubber sheet and the asphalt-fiber filler is filled with a second type of grease filler.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model ensures the stability of the foundation expansion joint by embedding multiple load-bearing steel plates into the settlement joint. The settlement joint is waterproofed by using an oil-based filler and asphalt-impregnated hemp filler in combination with a waterstop and rubber plate. The arrangement of the waterstop and rubber plate increases the waterproof effect of the settlement joint. Moreover, the waterstop is supported by multiple load-bearing steel plates, ensuring its durability. This achieves the purpose of reinforcing the settlement joint with steel plates and steel bars, increasing the structural strength of the settlement joint, and improving the waterproof effect of the settlement joint with double protection of waterstop and rubber strip.

[0013] 2. This utility model utilizes an aluminum alloy pressure plate, a pointed tip, an external thread, and a nut. The aluminum alloy pressure plate presses down on top of the rubber sheet, and the pointed tip on the aluminum alloy pressure plate is embedded inside the rubber sheet, increasing the stability of the rubber sheet. The nut is screwed onto the surface of the external thread to secure the rubber sheet, ensuring its stability and improving the stability of the rubber sheet after installation. Furthermore, the V-shaped groove on the aluminum alloy pressure plate can effectively guide water flow. Attached Figure Description

[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0015] Figure 1 This is a schematic diagram of one embodiment of the present utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of a load-bearing steel plate, steel column, and waterstop strip according to an embodiment of the present invention;

[0017] Figure 3 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Bearing steel plate, 2. Steel column, 3. Pad plate, 4. Waterstop, 5. Ointment filler one, 6. Asphalt hemp filler, 7. Top groove, 8. Rubber plate, 9. Aluminum alloy pressure plate, 10. Tip, 11. External thread, 12. Nut, 13. Ointment filler two. Detailed Implementation

[0020] In the following description, embodiments of the waterproof structure for settlement joints of highway subgrade according to the present invention will be described with reference to the accompanying drawings.

[0021] Figure 1-3 This invention illustrates a waterproof structure for a roadbed settlement joint according to an embodiment of the present invention. It includes multiple bearing steel plates 1 embedded in the roadbed settlement joint. Both ends of the bearing steel plates 1 extend into the roadbed. Movable steel columns 2 are installed through the four corners of the top of each bearing steel plate 1. Pads 3 are welded to the surface of the steel columns 2, and the pads 3 rest against the top of the bearing steel plates 1. A waterstop 4 located in the settlement joint is bonded to the top of the multiple bearing steel plates 1, with both ends extending into the roadbed. Below the bearing steel plates 1, an oleo-filled sealant 5 is placed, filling the bottom of the settlement joint cavity. Above the oleo-filled sealant 5, an asphalt-impregnated hemp filler 6 is placed, filling the area below the bearing steel plates 1 and above the waterstop 4. A top groove 7 is provided at the top of the roadbed settlement joint. A rubber sheet 8 is laid inside the top groove 7. Oleo-filled sealant 13 is filled between the bottom of the rubber sheet 8 and the asphalt-impregnated hemp filler 6. An aluminum alloy... The aluminum alloy pressure plate 9 has a V-shape in the middle. The top of the steel column 2 passes through the rubber plate 8 and the aluminum alloy pressure plate 9. The top of the surface of the steel column 2 has an external thread 11, and the surface of the external thread 11 is threaded with a nut 12. The bottom of the nut 12 rests on the top of the aluminum alloy pressure plate 9. Both ends of the bottom of the aluminum alloy pressure plate 9 have pointed tips 10, which are inserted into the inside of the rubber plate 8. Through the cooperation of the aluminum alloy pressure plate 9, the pointed tips 10, the external thread 11, and the nut 12, the aluminum alloy pressure plate 9 presses on the top of the rubber plate 8, and the pointed tips 10 on the aluminum alloy pressure plate 9 are inserted into the inside of the rubber plate 8, which increases the fixation of the rubber plate 8. The nut 12 is tightened on the surface of the external thread 11 to secure the rubber plate 8, ensuring the stability of the rubber plate 8 and improving the stability of the rubber plate 8 after it is laid. Moreover, the V-shaped groove on the aluminum alloy pressure plate 9 can effectively guide water flow.

[0022] Working principle: When using this utility model, the bottom of the settlement joint cavity is filled with grease filler 5 and part of asphalt-impregnated hemp filler 6. Then, multiple bearing steel plates 1 are placed in the settlement joint between the two foundations. Next, the bearing steel plates 1 are fixed in the foundation by multiple steel columns 2. Then, the waterstop 4 is bonded to the top of the multiple bearing steel plates 1. Then, the asphalt-impregnated hemp filler 6 is filled on the top of the waterstop 4, and the top of the asphalt-impregnated hemp filler 6 is sealed with grease filler 2 13. A rubber plate 8 is laid in the inner cavity of the top groove 7 and put on the top of the multiple steel columns 2. Then, the aluminum alloy pressure plate 9 is put on the surface of the multiple steel columns 2 and tightened with nuts 12 to complete the installation.

[0023] In summary, this waterproof structure for highway subgrade settlement joints ensures stability at the foundation expansion joints by embedding multiple load-bearing steel plates 1 into the settlement joints. Waterproofing is achieved through the use of sealant filler 5 and asphalt-impregnated hemp fiber filler 6, along with waterstop 4 and rubber sheet 8. The arrangement of waterstop 4 and rubber sheet 8 enhances the waterproofing effect at the settlement joints. Furthermore, the waterstop 4 is supported by multiple load-bearing steel plates 1, ensuring its durability. This achieves the goal of reinforcing the settlement joints with steel plates and reinforcing bars to increase structural strength, and enhancing the waterproofing effect of the settlement joints through double-layer protection with waterstop and rubber strip.

Claims

1. A waterproof structure for settlement joints in highway subgrade, characterized in that, The system includes multiple bearing steel plates (1) pre-embedded in the roadbed settlement joint. Both ends of the bearing steel plates (1) extend into the roadbed. Movable steel columns (2) are installed through the four corners of the top of the bearing steel plates (1). A waterstop (4) located in the settlement joint is bonded to the top of the multiple bearing steel plates (1). Both ends of the waterstop (4) extend into the roadbed. An oil-based filler (5) is installed below the bearing steel plates (1) and fills the bottom of the settlement joint cavity. An asphalt-impregnated filler (6) is installed above the oil-based filler (5) and fills the bottom of the bearing steel plates (1) and the top of the waterstop (4). A top groove (7) is installed at the top of the roadbed settlement joint. A rubber plate (8) is laid in the inner cavity of the top groove (7). An aluminum alloy pressure plate (9) is installed above the rubber plate (8).

2. The waterproof structure for highway subgrade settlement joints according to claim 1, characterized in that, The aluminum alloy pressure plate (9) has a V-shape in the middle, and the top of the steel column (2) passes through the rubber plate (8) and the aluminum alloy pressure plate (9).

3. The waterproof structure for highway subgrade settlement joints according to claim 2, characterized in that, The top of the surface of the steel column (2) is provided with an external thread (11), and the surface of the external thread (11) is threaded with a nut (12), the bottom of the nut (12) abutting against the top of the aluminum alloy pressure plate (9).

4. The waterproof structure for highway subgrade settlement joints according to claim 3, characterized in that, Both ends of the bottom of the aluminum alloy pressure plate (9) are provided with sharp points (10), which are embedded in the interior of the rubber plate (8).

5. The waterproof structure for highway subgrade settlement joints according to claim 4, characterized in that, The steel column (2) has a pad (3) welded to its surface, and the pad (3) rests against the top of the supporting steel plate (1).

6. The waterproof structure for highway subgrade settlement joints according to claim 5, characterized in that, The space between the rubber sheet (8) and the asphalt-fiber filler (6) is filled with grease filler 2 (13).

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