Analytical method for the movement state of the sand particle mesostructure at the structure interface

Abstract

The invention discloses a method for analyzing the motion state of the mesoscopic structure of sand particles at the structure interface, which includes calculating the kinematic parameters of the sand particles and calculating the contact point position of adjacent sand particles according to the photographed image of the sand particle loading motion process at the structure interface ; According to the contact point position of adjacent sand particles and the preset judgment rules, judge the friction type of adjacent sand particle contact points; construct the kinematic parameters of sand particles and the result map of friction type of adjacent sand particle contact points; according to the kinematics of sand particles parameter, obtain the triangular structure of sand particles conforming to the preset triangular rules, and construct the state trend diagram of the triangular structure of sand particles. The invention realizes the analysis method of the movement state of the mesoscopic structure of sand particles at the structure interface. At the same time, the invention has fast calculation speed, clear and rich graphic display of results, and wide application range, and can provide an effective theory for analyzing the interaction characteristics of the structure interface and soil in accordance with.

Description

Technical field [0001] The present invention relates to a structural interface of the sand particles in the structural interface, which belongs to the field of structural and soil interaction interface. Background technique [0002] The particulate medium is a complex system, sand, butt, stones, etc., which are interacting with a large amount of solid particles, is a typical particulate medium system. The macroscopic mechanical properties are very close contact with the particles and the internal microstructure thereof, so Explore and explain the macroscopic mechanical properties of the particle system from the desired angle of the particles to seek the relationship between fineness and macro. [0003] In order to essentially recognize the carrying characteristics of structural objects interacting with the soil, in-depth movement of the sand particles of the structure and the sand contact interface, obtain its desirable structural feature, research its changes, and accordingly It...

AI Technical Summary

Problems solved by technology

During the interaction between the structure and the soil, a series of photos of the fixed soil area at the interface of the structure can be taken, and the overall displacement field data of the soil can be obtained by using the existing PIV (Particle Image Velocimetry) analysis technology, but it is impossible to track each The movement state of a single sand particle, the interaction between sand particles, and the change state of the mesostructure formed between multiple sand particles

Images