Shore/beach sediment release simulation experiment device and shore/beach sediment simulation experiment method

Abstract

The invention discloses a shore / beach sediment release simulation experiment device and a shore / beach sediment simulation experiment method. The shore / beach sediment release simulation experiment device comprises a wave generating device, a measuring device and a water level fluctuating device, wherein the water level fluctuating device comprises a slope variable water channel the slope of which can be regulated, and a lifting barrel which is connected with the slope variable water channel by virtue of a water outlet pipe and can be lifted in height; the wave generating device is arranged in the slope variable water channel, and comprises a rotating disc sliding groove formed vertical to the bottom of the slope variable water channel, a rotating disc which is arranged on the rotating disc sliding groove in a sliding manner and can rotate, and a floating body connected with the rotating disc. A mud groove is formed in the slope variable water channel. Water is injected in the lifting barrel and the water level fluctuation time and the fluctuation period in the slope variable water channel and the water level fluctuation are controlled, the rotating disc is rotated to continuously generate wave, so that the bottom permeability of bottom mud in a natural state and the fluctuation characteristic close to the natural water level can be restored, and the problem of experiment research of bottom mud pollution release under a hydrodynamic action that a lake shore is periodically flooded and repeatedly scoured by water can be simulated.

Description

technical field [0001] The invention relates to a simulation experiment device and an experiment method for a pollutant release process, belonging to the field of environmental protection, in particular to a shore beach sediment release simulation experiment device and a simulation experiment method thereof. Background technique [0002] In recent years, with the rapid development of my country's social economy, a large amount of nutrients and pollutants have entered lakes, coastal waters and other water bodies through rivers, and have been deposited and enriched in the tidal flat mud near the estuary. Sources and sinks of pollutants and pollutants. Affected by water surface fluctuations and waves, the tidal flat area forms a unique dynamic environment of periodic submersion and reciprocating water erosion, which disturbs the bottom mud of the beach and triggers the resuspension of surface sediments, resulting in the accumulation of organic matter and nutrients in the bottom ...

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Problems solved by technology

[0013] The technical problem to be solved in the present invention is to aim at the deficiencies of the above-mentioned prior art, and provide a beach sediment release simulation experiment device and its simulation experiment method, the shore beach sediment release simulation experiment device and its simulation experiment method, can be used for Simulate the hydrodynamic conditions of the shore beach's periodic submersion and reciprocating water erosion, and solve the experimental simulation problem of sediment pollution release under the unique hydrodynamic environment of the shore beach

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