Multi-stage physical variable-slope water tank experimental device capable of simulating fluid motion characteristics

Abstract

The invention discloses a multi-stage variable-slope physical water tank experimental device capable of simulating fluid motion characteristics, which can comprise a material box device, a measuring system, a data acquisition system, a hydraulic system and a material recovery device, the material box device is arranged at the upstream of a multi-stage variable-slope physical water tank and is used for loading experiment materials and simulating the occurrence of debris flow. The hydraulic system is used for lifting the multi-stage variable-slope physical water tank to a specified angle, inclination angles of different segmented water tanks can be adjusted, terrain changes are simulated, and the motion characteristics of debris flow and loads of the bottom of the multi-stage variable-slope physical water tank and a protection structure are monitored through various sensors. The high-speed camera at the top of the multi-stage variable-slope physical water tank is used for recording the motion form of debris flow. According to the multi-stage variable-slope physical water tank experimental device, damage monitoring of debris flow on a protective structure can be achieved, the motion characteristics of the debris flow and the mechanism of action with the protective structure are obtained by comparing data of working condition combinations, and scientific basis and guidance are provided for prevention and treatment of the debris flow.

Description

technical field [0001] The invention relates to the field of debris flow prevention and control engineering construction, in particular to a multi-level variable-slope physical water tank experimental device capable of simulating fluid movement characteristics, which can be used for indoor measurement of impact loads on protective structures after debris flow occurs, and provides certain support for debris flow prevention and control engineering construction. guide. Background technique [0002] Debris flow is a natural geological phenomenon unique to mountainous areas. It is caused by factors such as heavy rain, glaciers, and water bodies. After that, under the action of gravity, a large amount of debris and huge gravel violently pour down along the hillside or valley. a natural process. Debris flows often have the characteristics of sudden outbreak, short duration, ferocious onset, and strong destructive power, which seriously threaten the safety of human life and the con...

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Problems solved by technology

[0007] Although the above flume device can simulate the effect of debris flow and protective structure, there are also great technical defects: the terrain of the debris flow movement area is complex and changeable, and the current research is limited by the experimental environment. In order to simplify the simulation, a straight and simplified slide is usually used. The surface is used as the base, ignoring the change of the terrain; in addition, limited by the volume of the material box, the simulated water flow is relatively shallow, and the shallow flow depth will cause the particles to be unable to mix uniformly in the direction of the flow depth, and the inflow and the protection structure The action process is short, and the impact effect of continuous incoming flow cannot be simulated

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