Model test device and method for law of rolling stone motion

Abstract

The invention discloses a testing device and method for a motion rule model of rolling stones. The device includes a side-slope simulation system, a rolling-stone release system, a base, a pneumatic control system and a hydraulic control system. The rolling-stone release system includes two parts: a positioning system and a release system. The positioning system determines the position for rolling-stone release through adjustment of a vertical direction, a horizontal direction and angles. The release system is capable of simulating different rolling-stone start methods of inclined slide, vertical fall and rotating toppling. The side-slope simulation system adjusts an inclined-slope angle through control of lifting of a jack. The testing device has the advantages of being mechanized, convenient to operate and capable of being used for a plurality of times; the size of the base can be adjusted according to test demands so that the testing device is high in adaptability; and a coordinate paper board is adopted and through shooting of a high-speed camera, a coordinate position of a rolling stone at any time can be determined clearly and accurately.

Description

technical field [0001] The invention relates to the field of model tests, in particular to a model test device and method for simulating the movement law of rolling stones. Background technique [0002] Rolling stones refer to individual rocks falling, rebounding, jumping, rolling or sliding from the surface of slopes and cliffs for some reason, and then moving down the slope quickly in one or more combinations. Motion, a dynamic process that eventually comes to rest near a flatter terrain or obstacle. When there are human activities or human-built facilities within the moving range of rolling stones and cause certain losses, it constitutes a rolling stone disaster. [0003] Due to the influence of many factors, the rolling stone incidents in mountainous areas generally have unpredictable rules such as multiple, sudden, random, etc., which have great harm to traffic lines, building facilities and personal safety. Chinese scholars have carried out a lot of research work on ...

AI Technical Summary

Problems solved by technology

Chinese scholars have carried out a lot of research work on the law of rolling stone movement, but there are also obvious weaknesses: field test, model test and numerical simulation are the three methods most used in the study of rolling stone movement trajectories. It is not yet mature enough, and lacks a set of systematic rolling stone motion simulation test devices and corresponding test methods, so it is impossible to conduct in-depth mechanism research on the rolling stone movement law, which seriously affects the risk analysis and prevention of rolling stone disasters

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