Dynamic deflection obtaining method based on angles

Abstract

The invention discloses a dynamic deflection obtaining method based on angles. The method includes the following steps of firstly, measuring the movement speeds, in the axis directions of Doppler velocimeters, of corresponding road surface measurement points relative to the Doppler velocimeters, measuring the common rotating angular speed of the Dopler velocimeters, and measuring the movement speed of a dynamic detection device in the driving direction of a detection vehicle; secondly, obtaining an included angle, produced due to the rotation of the load beam, between a load beam and the road surface; thirdly, obtaining the road surface deformation speeds of the measurement points corresponding to the multiple Doppler velocimeters in a deflection basin; fourthly, setting up a corresponding deflection basin slope equation set; fifthly, solving the deflection basin slope equation set to obtain defection basin slope equation parameters, and thereby obtaining dynamic deflection values of the defection basin road section. According to the method, under the conduction of the high-frequency measurement points and the sampling with various intervals, continuous dynamic defection measurement results are provided, and the comprehensive evaluation of the road section can be more accurate and credible.

Description

technical field [0001] The invention belongs to the technical field of non-destructive detection and evaluation of highway subgrade and pavement, and in particular relates to an angle-based dynamic deflection acquisition method. Background technique [0002] The detection of pavement deflection is the basis for evaluating the bearing capacity of pavement, and it is very important for the control and inspection of engineering quality. In addition, it also determines the scientific level and credibility of road network maintenance decisions, and directly affects the allocation of maintenance funds and the maintenance of old buildings. Rationality of road reconstruction design. Although the equipment and methods for testing deflection are different in countries around the world, the understanding of the basic concept of deflection is the same. The definition of deflection generally refers to the total vertical deformation value (total deflection) or vertical rebound deformatio...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the technical problems of "slow measurement speed, low precision, and poor reliability" in the prior art, the present invention proposes an angle-based dynamic deflection acquisition method, which includes the following steps:

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