Tidal effect coupled mechanical structure of two-dimensional sea island water and salt migration simulation device

Abstract

The invention discloses a tidal effect coupled mechanical structure of a two-dimensional sea island water and salt migration simulation device. A sand box is a rectangular box body structure with an open top, a top cover plate of the sand box is provided with a plurality of water injection holes, each water injection hole is internally connected with a water injection hose, and the water injection hose is communicated with a water injection tank through a peristaltic pump; two rows of pressure measuring holes are formed in the side wall of the sand box in the height direction, a highest water line and a lowest water line are arranged on the side wall of the sand box, an air pressure hole is located above the highest water line, a water pressure hole is located below the lowest water line, the water pressure hole is connected with the bottom end of a U-shaped pressure measuring pipe, and the top end of the U-shaped pressure measuring pipe is located above the highest water line; the two sides of the sand box are each provided with a tide wave making device, and the tide wave making devices can communicate with the interior of the sand box. Compared with on-site observation, the cost is lower, and the situations under the action of double-side tides and single-side tides can be simulated by controlling connection or disconnection of the experiment sand box and the tide devices on the two sides.

Description

technical field [0001] The invention relates to the technical field of an indoor sand box water-salt migration simulation device, in particular to a mechanical structure of a two-dimensional sea-island water-salt migration simulation device coupled with tidal effects. Background technique [0002] As the important driving factors of surface water and groundwater, tidal fluctuation and rainfall infiltration significantly affect the hydrodynamic conditions and solute migration process of the island aquifer, thereby changing the physical and chemical properties of the soil and the ecological balance of the island. Therefore, tidal fluctuations and rainfall processes are important boundary conditions for simulating island habitats. It is of great significance to study the island hydrodynamics and solute migration laws under the coupled effects of the two to prevent seawater intrusion and efficiently utilize island resources. [0003] At present, on-site observations are widely u...

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Problems solved by technology

[0003] At present, on-site observations are widely used to study the problem of seawater intrusion in island aquifers, but on-site observations are expensive and have many interference factors, making it difficult to reveal the law of seawater intrusion from the perspective of mechanism

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