Method for establishing composite pavement temperature field model of underground road

Abstract

The invention relates to composite pavement temperature measurement of an underground road. The purposes of the invention are to make a research on a method for predicating the temperature of a pavement at any time and in any position and preferably instruct pavement structural and material design of the underground road. In order to achieve the purposes, a technical scheme adopted in the invention is as follows: a method for establishing a composite pavement temperature field model of the underground road is characterized by comprising the following steps: actually measuring a composite pavement temperature field of the underground road; carrying out heat transfer theoretical analysis, air convection heat exchange and air radiation heat exchange on the composite pavement temperature field of the underground road; from basic principles of climatology and heat transfer theory, analyzing the temperature field and temperature stress of the underground road pavement by using a two-dimensional elastic layer theory system according to actual situations of a pavement structure; and making the following basic assumptions. The method is mainly applied to the temperature measurement of the composite pavement of the underground road.

Description

technical field [0001] The invention relates to the technical field of evaluating the influence of underground road composite pavement temperature on service performance, and specifically relates to a method for establishing an underground road composite pavement temperature field model. Background technique [0002] In order to ensure the good quality and sufficient durability of the composite pavement of underground roads, the environmental conditions of the composite pavement of underground roads must be investigated, analyzed and studied in detail. The environmental conditions of the pavement structure of the underground road mainly include the temperature and humidity in the underground road, and the temperature condition has a great influence on the pavement structure of the underground road. Therefore, this chapter mainly studies the temperature condition of the composite pavement structure of the underground road. As we all know, underground roads have good thermal i...

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Problems solved by technology

Its shortcoming is that the analytical expression of the road surface temperature field is too complicated, there are many assumptions when solving the solution, and the numerical calculation is too cumbersome, which limits its application in practical engineering to a large extent, and this method also requires a large amount of meteorological data and The thermal characteristic parameters of pavement materials. The advantage of this method is that it has strong adaptability and is not limited by regions, pavement materials and types. [132,133]

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