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Construction method of grouting reinforcement for old concrete pavement hollow board

A technology for concrete pavement and grouting reinforcement, which is applied in the direction of roads, roads, road repair, etc., can solve problems such as affecting the construction progress and taking a long time for grouting

Active Publication Date: 2022-06-07
广东德泽建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual construction process, it often takes a lot of time to prepare the grouting slurry, which affects the overall construction progress

Method used

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  • Construction method of grouting reinforcement for old concrete pavement hollow board
  • Construction method of grouting reinforcement for old concrete pavement hollow board
  • Construction method of grouting reinforcement for old concrete pavement hollow board

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Experimental program
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Embodiment Construction

[0035] Attached to the following Figure 1-3 This application will be described in further detail.

[0036] The embodiment of the present application discloses a construction method for grouting reinforcement of hollow slabs of old concrete pavement. Include the following steps:

[0037] S1. Empty plate detection. Specifically, according to the requirements of the construction drawings, the construction personnel use the Beckman beam pavement deflection instrument to test the deflection value of the entire line panel, set the deflection value to L, and record the L value of each measuring point, so as to detect one by one. Empty plate, mark the drilling position on each empty plate.

[0038] S2, grouting hole construction. specifically:

[0039] S21, using a drilling rig to drill a grouting hole according to the marked drilling position. When the marked position is near the corner of the hollow plate, drill a grouting hole 50cm away from the edge of the hollow plate. Th...

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PUM

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Abstract

The invention discloses a grouting reinforcement construction method for hollow-out slabs on old concrete pavements. First, the hollow-out positions of the road slabs are detected one by one by using a Beckman beam road surface deflection meter, and then the grouting holes are drilled, and the grouting slurry is prepared by using a mixer. The raw materials fall into the material distribution barrel through the lower hopper, and then enter the two mixing barrels under the action of the material distribution mechanism for stirring. The slurry raw materials after the first stirring fall into the mixing hopper for the second stirring, thereby reducing the stirring time and making the stirring Ingredients are mixed more evenly. After the grout is prepared, use the grouting machine to extract the grout and pour it into the grouting hole through the grouting pipe. After the grout solidifies, check the reinforcement quality until the deflection test is accepted, and then maintain for a specified time.

Description

technical field [0001] The invention relates to the technical field of road repair, in particular to a grouting reinforcement construction method for hollow slabs of old concrete pavements. Background technique [0002] With the acceleration of road construction, many advantages of concrete pavement make it widely used in road construction. With the increase of traffic volume, there will be a certain plastic deformation of the foundation under the slab. After the load leaves, this part of the plastic deformation cannot be fully recovered, resulting in weakened or voided local support conditions. [0003] The void of the slab is a common disease of cement concrete pavement. When voids exist, the corners or edges of the pavement are prone to deflection under the action of loads, and under the action of repeated loads, it is easy to cause lateral fatigue of the pavement. cracked. Therefore, it is necessary to regularly inspect and repair the hollow slab of the concrete floor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/10
CPCE01C23/10Y02W30/91
Inventor 韦锦培陈楚君谢志雄
Owner 广东德泽建设工程有限公司