Testing device for measuring slope movement and valley bottom accumulation of landslide dam material

Abstract

The invention provides a testing device for measuring slope movement and valley bottom accumulation of a landslide dam material. The testing device comprises a material box, an inclined groove, a telescopic frame, a concave groove, a barrier plate, a support and a platform, wherein the bottom surface of the material box is a movable plate which can be opened and closed, is connected with a cross beam through a bayonet and is used for adjusting the horizontal position of the material box; the cross beam is connected with a vertical rod through the bayonet, and can adjust the vertical height of the material box; the inclined groove is formed under the material box, an inclined slope is formed through a lower telescopic frame, an adjusting plate is arranged at the lower end, and the tail end of a bottom plate is connected with the front section of the concave groove through a movable hinge; the concave groove comprises a left arc plate, a middle hinge and a right leaf rolling arc plate, the lower portion of the left arc plate is the support, the middle hinge is fixed to the platform, and the top face of the right leaf rolling arc plate is connected with the barrier plate through a bayonet; and the bottom of the barrier plate is connected with a horizontal rail through a bayonet. The testing device is simple in structural form and simple in operation method, and can simulate a particle screening and separating phenomenon and a valley bottom accumulation process in a slope movement process of the landslide dam material.

Description

technical field [0001] The invention belongs to the field of physical-mechanical model facilities, in particular to a test device for measuring slope movement and bottom accumulation of dam materials. Background technique [0002] As a major flood and drought disaster, landslide-type barrier dams have occurred frequently and frequently in recent years, and its comprehensive risk analysis and evaluation and emergency response technology has been listed as a priority topic in the field of natural disaster prevention and control. Because landslide-type dams are formed by the rapid accumulation of landslide-sliding earth-rock materials, compared with artificially designed and uniformly rolled earth-rock dams, the particle distribution of dam materials presents significant spatial variability. For barrier dam materials, because it is difficult to obtain on-site monitoring data, model testing has become one of the important means to reproduce the landslide-debris movement and accu...

AI Technical Summary

Problems solved by technology

For barrier dam materials, because it is difficult to obtain on-site monitoring data, model testing has become one of the important means to reproduce the landslide-debris movement and accumulation process; however, the current physical-mechanical model device research has not considered the initial start-up rate of debris The key factors for the formation of barrier dams, such as slope shape and valley behavior, are still limited to qualitative descriptions of the accumulation characteristics and material distribution of barrier dams.

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