A method for evaluation and analysis of loose asphalt pavement construction

Abstract

The invention discloses a method for evaluating and analyzing loose asphalt pavement construction. The system mainly includes a data storage module, an early warning module, a judgment module, a system analysis module, a real-time detection module, and a data acquisition module. The system analysis module unloads materials by establishing a differential equation. Considering the factors that affect the asphalt mixture during the process, the particle diffusion during the unloading process is analyzed to obtain the first real-time detection results. The real-time detection module uses the weighted static moment dispersion coefficient as the evaluation algorithm The image information is analyzed to obtain the detection result of the second real-time detection, and then the judgment module judges the detection result. When the judgment module fails to pass the judgment, the judgment module sends early warning information to the early warning module, and the construction personnel take timely remedial measures, which improves the quality of life. The accuracy of the real-time detection of the uniformity of the asphalt mixture realizes the real-time, comprehensive and accurate detection of the uniformity of the loose asphalt mixture during the asphalt pavement paving process.

Description

technical field [0001] The invention relates to the technical field of pavement quality detection, in particular to a method for evaluating and analyzing loose asphalt pavement construction. Background technique [0002] In the process of pavement construction, asphalt mixture is the most commonly used raw material. The mechanical properties and service life of asphalt pavement are affected by the uniformity of asphalt mixture. When the asphalt mixture is uneven and segregation occurs, the asphalt pavement will be There are weak points in local performance, leading to the occurrence of early diseases, shortening the service life of asphalt pavement, and making all materials and structural design futile; there are also many factors that lead to uneven asphalt mixture, such as filler particles and raw materials. The mixing time of asphalt mixture, the ratio of asphalt mixture, and the detection method of uniformity. In the prior art, there have been many detection researches o...

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Problems solved by technology

[0002] In the process of pavement construction, asphalt mixture is the most commonly used raw material. The mechanical properties and service life of asphalt pavement are affected by the uniformity of asphalt mixture. When the asphalt mixture is uneven and segregation occurs, the asphalt pavement will be There are weak points in local performance, leading to the occurrence of early diseases, shortening the service life of asphalt pavement, and making all materials and structural design futile; there are also many factors that lead to uneven asphalt mixture, such as filler particles and raw materials. The mixing time of asphalt mixture, the ratio of asphalt mixture, and the detection method of uniformity. In the prior art, there have been many detection researches on the unloading stage, feeding stage, and distribution process of asphalt mixture by using fluid mechanics; the traditional segregation Most of the detection methods use asphalt pavement rolling and forming, and artificial random sampling is used for measurement, so as to evaluate the segregation of asphalt pavement. The existing emerging evaluation methods, such as laser structure depth meter, can comprehensively evaluate the uniformity of asphalt pavement , but cannot be evaluated in real time during the asphalt mixture paving process, and the hysteresis of the detection results makes it impossible to deal with the road surface in time even if the road surface segregation problem is detected. The only way to resurface the original road surface is by milling The remedy is a great waste of time and resources, and the segregation detection method using image analysis will be affected by the accuracy of the collected images. In order to solve the problems of subjectivity, lag, and time-consuming and labor-intensive evaluation methods of the existing asphalt pavement paving uniformity, This application proposes an evaluation and analysis method for Songpu asphalt pavement construction, which realizes real-time, comprehensive and accurate evaluation of the uniformity of loose asphalt mixture in the process of paving asphalt pavement

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