Debris-flow physical model experiment system and debris-flow simulation assembly thereof

Abstract

The invention provides a debris-flow physical model experiment system and a debris-flow simulation assembly thereof. The debris-flow simulation assembly comprises a material box used for holding a material simulating debris flow, a water supply device for supplying water for the material in the material box for forming a solid-liquid mixture simulating debris flow, and a flow passage device; the material box possesses a height relative to a base plane; one end of the flow passage device is connected with the material box, and the other end of the flow passage device is at the base plane, and an included angle is formed between the flow passage device and the height direction of the material box. The provided dump debris-flow in-door physical model experiment system possesses comprehensiveness, integrity, flexibility and repeatability, is capable of performing physical simulation of debris flow whole processes with multiple slope angles and alluviation sectors, is provided with multiple monitoring systems, and possesses important meaning on research of dump debris flow forming mechanism, monitoring and early alarming and the like.

Description

technical field [0001] The invention relates to the field of indoor physical model experiment research of debris flow, in particular to a physical model system capable of realizing the whole process of formation of various slope angles and debris flow in a dump site under an alluvial fan. Background technique [0002] my country has become one of the major mining countries in the world, and the development of mineral resources has changed the original ecological environment of resource areas to a large extent. The loose solid materials piled up in the mine dumps provide source conditions for the occurrence of debris flows, so that during the development of mine resources, improper dumping of spoils often leads to frequent occurrence of debris flow disasters in the dumps. The occurrence and development of mine debris flow not only has the three conditions of source, topography and hydrodynamic force similar to natural debris flow, but also has characteristics different from n...

AI Technical Summary

Problems solved by technology

[0005] The above physical model experiments mainly have the following problems: 1. The comprehensiveness and integration of the physical model system needs to be developed. There are many influencing factors on the formation of debris flow in mine dumps. , it is necessary to arrange various monitoring systems to realize real-time monitoring of various key parameters, and on this basis to comprehensively analyze and grasp the evolution characteristics of debris flow; 2. The flexibility and repeatability of the physical model experiment system need to be improved. The operation of the model test system is relatively complicated, and it is difficult to realize the debris flow model experiment under different engineering backgrounds; 3. The scientificity of the main parameters monitored in the physical model test system needs to be studied. Monitoring of water pressure, rainfall, material flow velocity, and movement distance are all necessary but not sufficient conditions for the occurrence of debris flows. It is difficult to conduct monitoring and early warning research on the occurrence of debris flows. The relationship between sliding force and anti-sliding force in the formation of debris flows is the result of debris flows Necessary and sufficient conditions

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