Intelligent system and method for predicting service performance of pavement structure

Abstract

The invention provides an intelligent system for predicting the service performance of a pavement structure, which belongs to the technical field of road engineering and comprises a traffic axle load measuring device, a pavement structure mechanical response measuring device, a pavement structure temperature measuring device, a pavement track depth measuring device, a pavement crack measuring device and a pavement structure service performance predicting device. The invention also provides a method for predicting the service performance of a pavement structure, which comprises the steps of: sequentially building a fatigue damage crack development prediction model, a rut depth prediction model and a low-temperature crack length calculation model according to the traffic axle load, the internal temperature, the layer bottom strain and the crack condition of a pavement structure; calculating predicted values of the percentage of the bottom-to-top development cracks in the pavement structure in the surface area of the pavement structure, the percentage of the top-to-bottom development cracks in the length of the pavement structure, the rut depth and the low-temperature cracking crack length; and obtaining the flatness of the pavement structure in the future. The development trend of the service performance of the pavement structure is accurately predicted.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to an intelligent system and method for predicting the service performance of pavement structures. Background technique [0002] The expressway network plays a vital role in social and economic development. my country has built the largest expressway network in the world. The construction of smart expressways featuring "smart cars" and "smart roads" is an important part of the transformation of the road transportation industry. The focus of development is the only way for my country to develop from a large transportation country to a transportation power. [0003] Pavement service performance is an important parameter for the construction of smart expressways. At this stage, the research on the service performance of expressway pavement is still in the real-time collection of highway pavement structure basic monitoring parameters such as vehicle speed, axle load and temperat...

AI Technical Summary

Problems solved by technology

[0003] Pavement service performance is an important parameter for the construction of smart expressways. At this stage, the research on the service performance of expressway pavement is still in the real-time collection of highway pavement structure basic monitoring parameters such as vehicle speed, axle load and temperature through the layout monitoring settings. It has not yet involved the use of high-speed Highway pavement monitoring parameters predict the service performance of expressway pavement structures, resulting in massive pavement monitoring parameter data being idle and not being used reasonably. Conservation provides scientific basis

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