A 3D paving construction technology for asphalt pavement

Abstract

The invention discloses a 3D paving construction technology for asphalt pavement, which belongs to the technical field of road construction. The invention uses a paver equipped with a 3D paving automatic control system for construction, without complex and heavy operations such as setting out, piling, and hanging wires, which can not only significantly reduce labor intensity, but also greatly speed up construction. The invention uses a 3D paving automatic control system and cooperates with a warm mixing agent to carry out paving construction, which not only can ensure the quality of paving construction, but also can reduce the emission of harmful smoke generated by asphalt paving.

Description

technical field [0001] The invention belongs to the technical field of road construction, and in particular relates to a 3D paving construction technology for asphalt pavement. Background technique [0002] At present, the level of highway construction in our country has reached a relatively high level, but traditional technology is still used for paving and leveling. In traditional paving construction, pavement machines or graders are used to effectively level the road surface during the construction of high-speed water-stabilized layers. At present, the automatic leveling system used by the paver to pave the water-stabilized layer and asphalt layer is mainly two methods of contact shoe and non-contact sonar, that is, the shoe sensor or sonar tracker is used for reference. The aluminum beams or datum lines erected by the surveyors are used for on-site construction. During the construction, many on-site personnel are required to carry out the datum erection and the pre- and...

AI Technical Summary

Problems solved by technology

[0004] (1) The influence of human factors on the datum: the traditional guidance datum is determined by reading the height of the leveling rod with the level gauge, but the foundation of the roadbed is often not good, and the accuracy of the datum line during the erection process depends on the responsibility and fatigue of the personnel. The accuracy of the erection of the reference guideline to a large extent

[0005] (2) The impact of construction machinery on the datum: Since the paver may damage the datum pile during the paving process or the material truck is transferred to the construction site to roll the datum line, these will lead to the deviation of the erection datum and the error of paving construction

[0006] (3) The design elevation of the paving construction cannot be guaranteed: the smoothness and flatness of the paving can be better controlled by the balance beam or the sliding shoe, but it cannot ensure the smoothness and flatness while controlling the paving elevation

[0007] (4) The measurement workload is heavy and a large number of auxiliary personnel are required: paving construction through balance beams or sliding shoes requires a large amount of measurement work as an auxiliary, so a large number of measurement personnel and measurement auxiliary personnel are required, and a large amount of pre-construction paving preparations are required Work

[0008] (5) Potential safety hazards in construction: Paving construction is greatly affected by external factors, and it is often necessary to carry out 24-hour continuous construction operations in order to catch up with the construction period and construction progress. Due to the fatigue of construction personnel, it will inevitably increase the probability of construction errors and accidents , there are engineering quality and safety hazards

[0009] (6) Material control: Due to the low control accuracy and the quality of the sub-base treatment, the flatness of the next layer is poor. In order to ensure the thickness of the thinnest part, it will cause waste of materials in the paving of the upper layer

[0011] In addition, the traditional paving method has a high asphalt temperature during asphalt paving, a large amount of smoke emissions, and a long period of harmful gas release after asphalt paving, which has a certain impact on the environment

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