Construction method and equipment for cement concrete pavement

A technology of cement concrete and construction method, which is applied to the coagulation pavement, roads, roads and other directions of on-site paving, can solve the problems of cracking, splitting of the outer road surface and inner road surface, easy depression and deformation of the inclined road at the corners, etc., so as to reduce the The effect of splitting, reducing stress concentration and improving stability

Active Publication Date: 2021-11-23
CHINA ROAD & BRIDGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a construction method of cement concrete pavement aiming at the problem that the inclined road surface at the turning is easy to sag and deform, and the outer road surface and the inner road surface are split and cracked during use.

Method used

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  • Construction method and equipment for cement concrete pavement
  • Construction method and equipment for cement concrete pavement
  • Construction method and equipment for cement concrete pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] see figure 1 A schematic diagram of an implementation form of cement concrete pavement construction, the construction method includes the following steps:

[0049] Step 1. Excavate the curved roadbed, and the roadbed is inclined to the inside;

[0050] Step 2: A plurality of vertically downward first anchors 1 and a plurality of inclined downward second anchors 5 are arranged on the outer side of the roadbed, and a plurality of vertically downward anchors 5 are arranged on the inner side of the roadbed. The third anchor 9, compacting the bottom of the roadbed, laying a reinforcement frame 7 on the roadbed, and laying a reinforcement net 6 on the reinforcement frame 7, wherein, the first anchor steel rod 2 in the first anchor 1 and the reinforcement frame 7 and The outer edge 61 of the reinforcement net is fixed, and the second anchor steel rod 4 in the second anchor 5 is fixed to the outer edge 61 of the reinforcement net, that is, the first anchor steel rod 2 and the ...

Embodiment 2

[0053] see figure 2 The schematic diagram of another implementation form of the cement concrete pavement construction, the construction method is based on the embodiment 1, requiring the second anchor 5 inclined downward and the third anchor 9 vertically downward to penetrate into the soil Fixed connection at one end. The specific setting of the first anchor 1 is as follows: on the outer side of the subgrade, drill holes vertically through drilling equipment, pour cement concrete into the holes until the cement concrete fills the holes, and then insert steel rods into the holes, And vibrate with a vibrator until it is dry; the specific setting of the second anchor 5 and the third anchor 9 is as follows: on the outer side of the subgrade, drill holes obliquely through drilling equipment to obtain inclined holes for setting the first Two anchors 5; on the inner side of the subgrade, drill vertically through drilling equipment to obtain a vertical hole for setting the third anc...

Embodiment 3

[0055] see Figure 3-4 The schematic diagram of the reinforcement structure, construction method On the basis of embodiments 1 and 2, the reinforcement structure inner side 72 and the outer side of the upper surface of the reinforcement structure 7 are provided with a plurality of protrusions 73, and the reinforcing mesh 6 A groove matching the protrusion 73 is provided on the side. This can make the connection between the upper layer and the lower layer of the pavement closer and reduce road damage such as cracking.

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Abstract

The invention discloses a construction method of a cement concrete road surface, comprising: 1) excavating a curved roadbed, and the roadbed is inclined inwardly; 2) a plurality of vertically downward first anchor pieces and A plurality of second anchors inclined downward, and a plurality of third anchors vertically downward are arranged on the inner side of the subgrade, compacting the bottom of the subgrade, laying a reinforced structure on the subgrade, and laying a reinforcing mesh on the reinforced structure, Among them, the steel rod in the first anchor is fixed to the outer side of the reinforced mesh, the steel rod in the second anchor is fixed to the outer side of the reinforced mesh, and the steel rod in the third anchor is fixed to the outer edge of the reinforced mesh. The inner side of the net is fixed; 3) Pour cement concrete above the reinforced net, and use a vibrator to vibrate the cement concrete. The paved road surface is an inwardly inclined road surface, covered with a ventilating film and shaped, and it can be dried. The road surface constructed by the invention can resist lateral impact force and reduce road surface damage.

Description

technical field [0001] The invention relates to the technical field of road surface construction. More specifically, the present invention relates to a construction method and equipment for cement concrete pavement. Background technique [0002] With the development of society, there are more and more vehicles, and the demand for road quantity and quality is also getting higher and higher. Under different road environments, it is necessary to study and adopt more favorable construction methods to improve road quality and meet road driving needs. Under the same construction method, the damage probability of the turning road surface is much higher than that of the flat road. The main reason is that when the vehicle is turning, the motion is similar to circular motion, and the centrifugal force generated by the vehicle at the turning will have a continuous reverse force on the outside of the road. Therefore, the road surface at the turning point is set to incline, one can mak...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C1/00E01C3/00E01C7/14E01C11/18E01C19/48
CPCE01C1/002E01C3/00E01C7/14E01C7/142E01C11/18E01C19/48E01C19/4806E01C19/488Y02A30/60
Inventor 魏文岳山任钰芳李志强
Owner CHINA ROAD & BRIDGE
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