Method for quickly repairing cement concrete pavement

A cement concrete and fast technology, applied in road repair, roads, roads, etc., can solve problems such as affecting the normal operation of vehicles, blocking roads for a long time, hidden dangers of traffic safety, etc., to reduce road closure time, reduce plate damage, The effect of saving construction time

Inactive Publication Date: 2012-09-26
SHANXI PROVINCIAL RES INST OF COMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of fast and practical maintenance technology, according to the traditional construction technology and methods, the road needs to be blocked for a long time during the maintenance period, which seriously affects the normal operation of vehicles and leaves hidden dangers for traffic safety. The social response is great.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An urban expressway is a cement concrete pavement with a slab thickness of 28cm and a width of 8m. The width direction is composed of two slabs, each 4m wide and 5m long. There are dowel rods and tie rods between the slabs. The dowel rods are 50cm long and 36mm in diameter. The tie rod is 70mm long and 20mm in diameter. Now a certain section of 8 boards is severely damaged and needs to be repaired quickly, and the method of the present invention is adopted.

[0016] First, prefabricate 32 1 / 4 slabs with a thickness of 26cm, reserve rod slots on the long sides and dowel bars on the short sides, embed lifting rings in the four corners of the slabs, and reserve grouting holes in the middle. Reinforcement in the slab, the long side is 18mm in diameter, the short side is 16mm in diameter steel bar, the steel bar grid size is 50cm×20cm, and the corners, embedded parts and reserved holes are attached to reinforce the steel bars. Use hydraulic impact equipment to remove the o...

Embodiment 2

[0018] A secondary road is a cement concrete pavement with a slab thickness of 28cm and a width of 8m. The width direction is composed of two slabs, each 4m wide and 5m long. There are no dowel bars and tie rods between the slabs. Now a certain section of 4 boards is severely damaged and needs to be repaired quickly, and the method of the present invention is adopted.

[0019] First, according to the needs, prefabricate 1 / 4 slabs with 16 pieces, slab thickness 26cm, embed 4 connectors on one side of the long side, buy 3 connectors on both sides of the short side, embed suspension rings in the four corners of the slabs, and reserve grouting holes in the middle . Reinforcement in the slab, the long side is 18mm in diameter, the short side is 16mm in diameter steel bar, the steel bar grid size is 50cm×20cm, and the corners, embedded parts and reserved holes are attached to reinforce the steel bars. Use hydraulic impact equipment to remove the original diseased plate, and then ar...

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PUM

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Abstract

The invention relates to a method for quickly repairing cement concrete pavement. The method comprises the following steps of: (1) prefabricating a cement concrete plate; (2) clearing the original plate damaged by diseases; (3) processing the original base layer; (4) conveying and hoisting the plate; (5) leveling the plate; (6) grouting locally; and (7) processing joints. Through the invention, the road closing time is shortened, the centralized backfield maintenance of the cement concrete pavement plate is realized, and the restriction on vehicle passage caused by traditional several days of maintenance after cement concrete pouring is avoided; the cost is low, the prefabricated spliced pavement has long service life, and the cost of restricting the traffic passage for road repair and construction is reduced; the durability is good, and the cement concrete prefabricated member is proved with excellent durability in bridges and house buildings; and the influence of weather conditions is avoided since the prefabricated slab can be constructed in hostile environment without influencing the strength and durability of the pavement slab.

Description

technical field [0001] The invention belongs to the field of road engineering, and in particular relates to a quick repair method for cement concrete pavement. Background technique [0002] Due to design, construction, use environment, maintenance level and other reasons, the cement concrete pavement currently built has been damaged to varying degrees in use. These damages tend to increase with the increase of traffic volume and service time. Some concrete pavements have different degrees of early diseases, especially plate fractures, before their expected lifespan. Due to the lack of fast and practical maintenance technology, according to traditional construction techniques and methods, roads need to be blocked for a long time during the maintenance period, which seriously affects the normal operation of vehicles and leaves hidden dangers for traffic safety, causing great social repercussions. Contents of the invention [0003] The technical problem to be solved by the ...

Claims

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Application Information

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IPC IPC(8): E01C23/09
Inventor 申俊敏袁长海张艳聪
Owner SHANXI PROVINCIAL RES INST OF COMM
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