Physical simulation test device and method for convergence of debris flows into rivers

Abstract

The invention relates to a physical simulation test device and method for convergence of debris flows into rivers. A horizontal low end of a first debris flow tributary ditch groove, a horizontal low end of a second debris flow tributary ditch groove, a horizontal low end of a debris flow main ditch forming region groove and a horizontal high end of a debris flow main ditch circulation region groove are fixedly connected through movable rubber tapes, a rainfall simulation device is also arranged, a variable-width river main channel groove and a reservoir are arranged on a movable support device, a water outlet of the reservoir is connected with one end of the variable-width river main channel groove, the other end of the variable-width river main channel groove is connected with a triangular weir, and a horizontal high end of the debris flow main ditch circulation region groove is communicated with the side surface of the variable-width river main channel groove through a debris flow main ditch accumulation region groove. With the adoption of the physical simulation test device and method, debris flow outbreak and convergence processes can be simulated, effects of factors such as different solid matter sources, slope angles, river water flow velocities, debris flow accumulation regions, river channel intersection corners and the like on convergence (blockage) of debris flows into rivers can be studied, and the operation is convenient.

Description

technical field [0001] The invention relates to a physical simulation test device and test method for mud-rock flow converging into a river, belonging to the fields of geological engineering and geotechnical engineering, and in particular to the research on the process of simulating the occurrence of mud-rock flow induced by heavy rain, the mechanism and influencing factors of mud-rock flow converging (blocking) rivers, and the like. Background technique [0002] Debris flow refers to a special torrent that flows along the slope or valley under the action of gravity when the loose debris on the slope or in the valley is saturated by heavy rain, snow, or glacier melting water. Features such as huge destructive power. my country is one of the countries with the most developed, largest and most harmful debris flows in the world. [0003] However, the disaster chain induced by debris flow converging into the river is likely to pose a serious threat to the country's property and...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a mud-rock flow Huijiang physical simulation test device and test method, which can improv

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