Frozen soil interface layer deformation measuring system and measuring method thereof

Abstract

The invention discloses a frozen soil shear interface layer deformation measuring system and a measuring method of the frozen soil shear interface layer deformation measuring system. The measuring system comprises a soil sample box, a soil sample, a sample preparation template, anti-tilting rods, an anti-tilting bearing, an industrial camera and an image processing device. The measuring method of the frozen soil interface layer deformation measuring system comprises the steps that the soil sample box is filled with prepared remolded soil in a layered mode, sealing is carried out through transparent adhesive tape after a soil sample interface layer is marked with white paint, the industrial camera is connected with the image processing device, image acquisition software is run, relevant parameters are set, images are automatically acquired, image measuring software is run through the image processing device, relevant parameters are set, measurement is carried out, and deformation data of interface layer soil bodies at different positions are obtained. The frozen soil interface layer deformation measuring system and the measuring method of the frozen soil interface layer deformation measuring system have the advantages that because the industrial camera and a prime lens are adopted, interface layer images can be clearly acquired; because the CMOS sensor camera is adopted, cost is low, power consumption is low, and operation is convenient to perform; deformation of the soil bodies at different positions of the interface layer can be measured; the measuring error can be as accurate as one micron.

Description

technical field [0001] The invention relates to a deformation measurement system and method for a shear interface layer of frozen soil, which belongs to the technical field of deformation measurement of indoor rock-soil model tests, and is suitable for high-precision measurement of micro-deformation of a shear interface layer of frozen soil. technical background [0002] During the establishment of soil constitutive model, soil deformation measurement is often used to quantitatively analyze test phenomena and results. In the natural frozen soil area or artificial frozen soil engineering, there are a lot of deformation problems of the contact interface layer between frozen soil and structures. In order to have a more in-depth study of the constitutive relationship of the frozen soil shear interface layer, its deformation must be measured , for quantitative analysis. The deformation of the shear interface layer of frozen soil is smaller than that of general rock and soil, and...

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a deformation measurement system and method for the interface layer of frozen soil, aiming at solving the problems existing in the natural frozen soil area or artificial frozen soil engineering The deformation problem of the contact interface layer between frozen soil and structures fills the gaps in domestic related instruments. By obtaining the displacement of the frozen soil interface layer at different positions, the deformation of the frozen soil interface layer is quantitatively analyzed. Deformation characteristics and the establishment of a practical constitutive model of the permafrost contact interface layer provide a test basis and an important premise

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