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Rapid repair construction method of concrete panel sunken platform for expressway

A technology for concrete slabs and highways, applied in road repair, roads, roads, etc., can solve the problems of inability to level the pavement slab, inconvenient construction, long construction time, etc., and achieve the benefits of safe use and pavement quality, construction process Safe, reliable, and simple construction methods

Inactive Publication Date: 2005-12-07
邓敬森
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, grouting technology cannot level all pavement panels; "replacing panels" has a great impact on traffic, and there is nowhere to pile up concrete slag, which affects the environment and is very inconvenient for construction. Decided to carry out plate replacement construction
Method 3) is currently considered a better repair method, but it is also affected by materials, such as long construction time, thick bedding, low adhesion to the original cement concrete, and short service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Somewhere on the highway, the staggered platform is inclined from the outside to the inside. The staggered amount of the inner platform corner is the largest, 8mm, and the staggered amount of the outer platform corner is the smallest, 2mm. The length L of the staggered platform (the distance between the inner and outer corners, that is, the length of the staggered platform) is 4m, and it is required to repair and reinforce the staggered platform so that the slope i of the staggered platform is 1%. Therefore, it is calculated that

[0048] Average misalignment h=(8-2) / 2+2=5mm

[0049] Repair average width w=h / i=5 / 0.01=500mm

[0050] The volume to be filled V=L×w×h=4000×500×5=10,000,000mm 3 =10L Ann Street

[0051] The weight of the required mislipping G=V×p=10×2.17=21.7kg

[0052] According to the design step by step batching and construction according to the above method, it takes a total of 20 minutes, and after another 30 minutes of maintenance, the traffic sign c...

Embodiment 2

[0054] In a continuous section of an expressway, there are 20 staggered platforms (including 7 uplinks and 13 downlinks), the average staggered amount is 5mm, the average filling width is 45cm, and the total consumption of staggered lipping is 190kg. According to the above The whole construction was completed within two days, and it was opened to traffic immediately after the completion of the construction. The traffic has been stable for several months without any abnormality.

[0055] The rapid repair construction method for the dislocation of expressway panels provided by the present invention is safe and reliable in the whole construction process and does not generate waste materials and slag. All materials are non-toxic or low-toxic items, which is a green and environmentally friendly construction method. In addition to highways, it will also be used in cement concrete maintenance projects for airstrips, large squares, and water conservancy and hydropower.

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Abstract

The present invention relates to a construction method for repairing high-speed road surface concrete split, which is characterized by that its uses a special-purpose material 'cuoliping' to make the concrete split by quickly levelled so as to attain the goal of quickly repairing concrete split.

Description

technical field [0001] The invention relates to the technical field of repair and maintenance of cement concrete, and mainly belongs to a simple, rapid and waste-free construction method for repairing concrete displacement on expressway pavement. Background technique [0002] Due to some reasons, the cement concrete plates are in different horizontal positions, which is called "staggered platform". At the airport, the wrong platform on the runway will affect the safety of aircraft take-off and landing; while on the expressway, the wrong platform is quite common. It leads to jumping, "nodding", road surface breakage, sinking, and even endangers safety and service life. It is a major problem in road maintenance. [0003] At present, the methods for treating the wrong platform are: 1), grouting at the bottom of the slab to lift and level it, 2) to replace the slab as a whole, 3) to use special cement or asphalt or polymer materials (such as JK-10 type, JK-24 type cement Concr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/10
Inventor 邓敬森熊瑛陈雪云熊厚金
Owner 邓敬森
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