Asphalt pavement coring hole repairing and tamping device

Abstract

The utility model discloses an asphalt pavement coring hole repairing and tamping device. The device comprises an upper rod piece, a lower rod piece, a tamping column, a tamping cake, an upper limiting block, a lower limiting block, a hammering column and a hammering column handle. The upper rod piece and the lower rod piece are connected through the lower limiting block in a welding mode, the tamping column and the tamping cake are combined into a whole in a welding mode, and the upper limiting block and the tamping column are connected with the top of the upper rod piece and the bottom of the lower rod piece through threaded structures respectively. The device is simple in structure, small in size, light in weight, convenient to transport, small in limitation and capable of being operated by only two persons, layered overall tamping of coring hole filling can be achieved, tamping stress is uniform, and the risk of road surface damage and water damage is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway construction, and particularly relates to a compaction device for repairing core holes in asphalt pavements. Background Art

[0002] Highway asphalt pavements, with their excellent service performance and convenience, have gradually become the main pavement structure forms of highways at all levels in China. After asphalt pavement construction, the main thickness detection method is core sampling detection, and the core samples obtained are also the main detection components for indicators such as the compaction degree of asphalt pavements.

[0003] Currently, the mainstream method for filling core holes in highway asphalt pavements is to backfill asphalt cold patch material or hot mix asphalt mixture in layers, and then use manual hammering for compaction. The compaction force is uneven, resulting in diseases such as damage and water damage easily occurring in the filled core holes, affecting the overall service life of the pavement and posing quality hazards. Content of the Utility Model

[0004] Aiming at the problems of uneven compaction force and difficult control of compaction degree in the existing filling process of core holes in highway asphalt pavements, the utility model provides a compaction device for repairing core holes in asphalt pavements, which can achieve overall compaction of the backfilled core holes in layers.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A compaction device for repairing core holes in asphalt pavements includes an upper rod, a lower rod, a compaction column, a compaction cake, an upper limit block, a lower limit block, a hammering column, and a hammering column handle;

[0007] The upper rod is 457.2 mm long and 15 mm in diameter. The upper end is connected to the upper limit block by a threaded interface, and the lower end is connected to the lower limit block by welding; the lower rod is 892.5 mm long and 15 mm in diameter. The upper end is connected to the lower limit block by welding, and the lower end is connected to the hammering column by a threaded interface.

[0008] The compaction column is a cylinder with a diameter of 70 mm and a height of 80 mm, and a threaded structure is machined at the upper end for connection with the lower rod.

[0009] The compaction cake is a round cake with a diameter of 98.5 mm and a thickness of 10 mm, and is connected to the compaction column by welding.

[0010] The upper limit block is a cylinder with a diameter of 45 mm and a thickness of 40 mm, and a threaded structure is machined inside for connection with the upper rod; the lower limit block is a combined body of a frustum of a cone with an upper mouth diameter of 70 mm and a lower mouth diameter of 15 mm and a cylinder with a diameter of 70 mm, with a total height of 47.5 mm, and is connected to the upper rod and the lower rod by welding respectively.

[0011] The hammering column is a concentric cylinder with an outer diameter of 70 mm, an inner diameter of 20 mm, and a height of 200 mm. Hammering column handles with a length of 117 mm are welded on both sides. During use, it is sleeved on the upper rod and installed between the upper limit block and the lower limit block.

[0012] All the above components are made of cast iron.

[0013] The beneficial effects of the present utility model:

[0014] The device of the present utility model has a simple structure, is small in size, light in weight, convenient for transportation, and has few limitations. It can be operated by only two people, and can realize the layered overall compaction of the core hole filling. The compaction force is uniform, reducing the risks of road surface damage and water damage. Description of the drawings

[0015] Figure 1 is the device structure diagram of the present utility model;

[0016] Figure 2 is the exploded view of the device structure of the present utility model.

[0017] In the figure: 1. Upper rod; 2. Lower rod; 3. Tamping column; 4. Tamping cake; 5. Upper limit block; 6. Lower limit block; 7. Hammering column; 8. Hammering column handle. Specific implementation manner

[0018] As Figure 1-2 shown, the main body of the device is connected by welding the upper rod 1 and the lower rod 2 through the lower limit block 6. The tamping column 3 and the tamping cake 4 are combined into a whole by welding. The upper limit block 5 and the tamping column 3 are respectively connected to the top of the upper rod 1 and the bottom of the lower rod 2 by a threaded structure. During use, first remove the upper limit block 5, install the hammering column 7 welded with the hammering column handle 8 on the upper rod 1, and then install the upper limit block 5.

[0019] Specific construction process:

[0020] When backfilling the core hole in layers, first clean the sundries and dust in the core hole, and then evenly apply a layer of emulsified asphalt on the inner wall and the base of the core hole. After the emulsified asphalt breaks, take a certain amount of cold asphalt patch material or hot mix asphalt mixture and place it at the base of the core hole. Stand the device vertically in the core hole, and the tamping cake 4 is in direct contact with the repair material. One person holds the lower rod 2 by hand to keep the device vertical, and the other person holds the hammering column handle 8 by hand, lift the hammering column 7 upward to the lower end of the upper limit block 5, release the hammering column handle 8, and under the action of gravity, the hammering column 7 falls to the lower limit block 6, hitting the lower limit block 6, driving the tamping column 3 and the tamping cake 4 to tamp the repair material, and repeat 10 times to complete the compaction operation of the repair material for this layer.

Claims

1. A core sampling hole repair and ramming device for asphalt pavement, characterized in that: It includes an upper rod member (1), a lower rod member (2), a ramming column (3), and a ramming cake (4) arranged in sequence from top to bottom; For the upper rod member (1), an upper limit block (5) is connected to the top by threading, and the lower rod member (2) is connected to the bottom by welding; For the lower rod member (2), the top is connected to the bottom of the upper rod member (1) through a lower limit block (6); A hammering column (7) is sleeved on the upper rod member (1) and is located between the upper limit block (5) and the lower limit block (6); The ramming column (3) is connected to the bottom of the lower rod member (2) by threading; The ramming cake (4) is connected to the bottom of the ramming column (3) by welding.

2. The asphalt pavement core hole repair ramming device according to claim 1, wherein: The upper rod member (1) has a length of 457.2 mm and a diameter of 15 mm; The lower rod member (2) has a length of 892.5 mm and a diameter of 15 mm.

3. The asphalt pavement core hole repair ramming device according to claim 1, wherein: The ramming column (3) is a cylinder with a diameter of 70 mm and a height of 80 mm, and a threaded structure is machined at the upper end and connected to the bottom of the lower rod member (2).

4. The asphalt pavement core hole repair ramming device according to claim 1, wherein: The ramming cake (4) is a round cake with a diameter of 98.5 mm and a thickness of 10 mm, and is connected to the ramming column (3) by welding.

5. The asphalt pavement core hole repair ramming device according to claim 1, wherein: The upper limit block (5) is a cylinder with a diameter of 45 mm and a thickness of 40 mm, and a threaded structure is machined inside and is connected to the upper rod member (1); The lower limit block (6) is a combined body of a frustum of a cone and a cylinder cast in one piece, with a total height of 47.5 mm; among them, the upper mouth diameter of the frustum of the cone is 70 mm, the lower mouth diameter is 15 mm, and the diameter of the cylinder combination is 70 mm; the lower limit block (6) is connected between the upper rod member (1) and the lower rod member (2) by welding.

6. The asphalt pavement core hole repair ramming device according to claim 1, wherein: The hammering column (7) is a concentric cylinder with an outer diameter of 70 mm and an inner diameter of 20 mm and a height of 200 mm, and hammering column handles (8) with a length of 117 mm are welded to both sides of the top; When in use, it is sleeved on the upper rod member (1) and can move up and down along the upper rod member (1).

7. The core hole repairing and ramming device for asphalt pavement according to claim 1, wherein: All components of the ramming device are made of cast iron material.

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