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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0014] Example 1:

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

[0016] First, prefabricate 32 1 / 4 plates as required, with a thickness of 26cm, a tie rod groove on the long side, and a force-transmitting rod groove on the short side. The four corners of the plate are embedded with rings, and grouting holes are reserved in the middle. Reinforcement in the slab, the long side is 18mm in diameter, the short side is 16mm in diameter, the grid size of the steel bar is 50cm×20cm, and the corners, embedded parts and reserved hole accessories ...

Example Embodiment

[0017] Example 2:

[0018] A secondary road is a cement concrete pavement with a thickness of 28cm and a width of 8m. The width direction is composed of two slabs, each of which is 4m wide and 5m long. There are no transfer rods and tie rods between the slabs. Nowadays, 4 boards in a certain section are seriously damaged and need to be repaired quickly. The method of the invention is adopted.

[0019] First, prefabricate 16 1 / 4 plates according to the needs, with a thickness of 26cm, 4 connectors on one side of the long side, 3 connectors on both sides of the short side, respectively, and four corners of the plate, with rings for grouting in the middle. . Reinforcement in the slab, the long side is 18mm in diameter, the short side is 16mm in diameter, the grid size of the steel bar is 50cm×20cm, and the corners, embedded parts and reserved hole accessories are reinforced. Use hydraulic impact equipment to remove the original diseased plates, and manually level the surrounding pla...

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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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