Asphalt pavement structure capable of preventing crack propagation and construction method

A technology for asphalt pavement and crack propagation, which is applied to the coagulation pavement, roads, roads and other directions paved on site. Composite bond strength, enhancing integrity and strength, and alleviating the effect of crowding diseases

CN112962383APending Publication Date: 2021-06-15卢林
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-06-15

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Abstract

The invention relates to an asphalt pavement structure for preventing crack propagation and a construction method. The asphalt pavement structure comprises a base layer, an old surface layer arranged on the base layer and a new surface layer arranged on the old surface layer, an I-shaped groove from the gap on the old surface layer to the base layer is formed, and a gap stopping structure in the I-shaped groove is arranged. the old surface layer is provided with a connecting hole used for being connected with a seam stopping structure; a connecting rod is arranged in the connecting hole; an anti-upheaval device is arranged between the old surface layer and the new surface layer. According to the invention, the seam stopping structure is arranged at the slot, so that the problem of upward reflection through the crack is effectively solved; an anti-upheaval device is arranged to effectively relieve the generation of upheaval diseases of a new surface layer; the base layer, the seam stopping structure and the old surface layer are connected into a whole through the arranged connecting rods, the integrity and strength of the pavement structure are enhanced, and it is guaranteed that the pavement structure is not prone to damage.
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Description

technical field

[0001] The invention belongs to the technical field of road engineering, and in particular relates to an asphalt pavement structure and a construction method for preventing crack expansion. Background technique

[0002] Common road structures include cement concrete pavement and asphalt concrete pavement. Compared with cement concrete pavement, asphalt concrete pavement has the advantages of better driving comfort and lower noise. In order to reduce noise and improve driving comfort, the transformation of cement concrete pavement into asphalt concrete pavement has become one of the key tasks of road engineering construction at this stage. The method of paving the asphalt concrete surface layer on the original cement concrete pavement can effectively utilize the original cement concrete pavement and shorten the construction period. However, there are many gaps in the general cement concrete pavement surface, such as: transverse joints to prevent drying shrink...

Examples

Embodiment 1

[0063] In this embodiment, the asphalt pavement structure includes a base layer 1, an old surface layer 2 arranged on the base layer 1, and a new surface layer 3 arranged on the old surface layer 2; a gap 15 on the old surface layer 2 Groove at the base layer 1 to form an I-shaped groove, and a seam stop structure 4 is set in the I-shaped groove. A connecting hole 5 for connecting the stopper structure 4 is opened on the old surface layer 2 . The seam stopping structure 4 is composed of an upper plate 10 , a vertical plate 11 and a lower plate 12 . An anti-wrapping device 6 is arranged between the old surface layer 2 and the new surface layer 3; An installation hole 9 for installing a fixing rod 8 is opened on the old surface layer 2 .

[0064] In this embodiment, connecting rods 13 are arranged in the connecting holes 5; the connecting holes 5 are arranged every 65 cm. The connecting rod 13 is a hot-rolled ribbed steel bar with a nominal diameter of 12mm.

[0065] In this...

Embodiment 2

[0080] In this embodiment, the asphalt pavement structure includes a base layer 1, an old surface layer 2 arranged on the base layer 1, and a new surface layer 3 arranged on the old surface layer 2; a gap 15 on the old surface layer 2 Groove at the base layer 1 to form an I-shaped groove, and a seam stop structure 4 is set in the I-shaped groove. A connecting hole 5 for connecting the stopper structure 4 is opened on the old surface layer 2 . The seam stopping structure 4 is composed of an upper plate 10 , a vertical plate 11 and a lower plate 12 . An anti-wrapping device 6 is arranged between the old surface layer 2 and the new surface layer 3; An installation hole 9 for installing a fixing rod 8 is opened on the old surface layer 2 .

[0081] In this embodiment, connecting rods 13 are arranged in the connecting holes 5; the connecting holes 5 are arranged every 80 cm. The connecting rod 13 is a hot-rolled ribbed steel bar with a nominal diameter of 14 mm.

[0082] In thi...