Experimental device and method for simulating migration process of seabed debris flow

Abstract

The embodiment of the invention discloses an experimental device and method for simulating the migration process of seabed debris flow. The experimental device comprises: a bottom plate; an outer cylinder arranged on the bottom plate; an inner cylinder arranged on the bottom plate and located on the inner side of the outer cylinder, wherein an annular space is formed between the inner cylinder and the outer cylinder; a hopper used for containing mixed slurry, wherein the mixed slurry is used for simulating seabed debris flow and is arranged above the annular space, and a valve is arranged at the bottom of the hopper; and a sedimentary layer model arranged in the annular space. The sedimentary layer model comprises: an annular ramp, wherein the slope top of the annular ramp is located below the valve, the slope toe of the annular ramp is located on the bottom plate, and a main body of the annular ramp is formed between the slope top and the slope toe; and a baffle vertically arranged in an annular space between the slope toe and the slope top, wherein the annular ramp is made of a sedimentary layer simulation material. By arranging the sedimentary layer model, the erosion effect of seabed debris flow on the sedimentary layer in the migration process is effectively simulated, and the overall miniaturization of the experimental device is realized.

Description

technical field [0001] The embodiments of the present invention relate to the field of geological movement simulation, and in particular to an experimental device and method for simulating the migration process of submarine debris flow. Background technique [0002] Submarine debris flow is a common submarine geological disaster and one of the main types of submarine landslides. The migration distance of submarine debris flow is much longer than that of submarine sliding and slumping, and the density of material migration is much higher than that of submarine turbidity current, which is likely to cause damage to a wide range of marine structures, including the overturning of offshore oil and gas platforms, rupture of submarine oil and gas pipelines, and submarine communication cables. Damage and other disasters, resulting in serious economic losses. Submarine debris flows can also trigger tsunamis, threatening the safety of life and property of coastal populations. Therefo...

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Problems solved by technology

[0003] For this reason, the embodiment of the present invention provides an experimental device and method for simulating the migration process of the submarine debris flow, so as to solve the problem of serious distortion of the simulation results of the submarine debris flow in the prior art

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