Monitoring device for local erosion and deposition deformation of tidal flat bed in intertidal zone

Abstract

The invention discloses a monitoring device for local erosion and deposition deformation of a tidal flat bed in an intertidal zone, which belongs to the technical field of micro-landform evolution monitoring. The device is scientific and reasonable, is safe and convenient to use, and comprises a monitoring assembly, a diversion assembly and a wireless signal transmission assembly. The monitoring assembly comprises at least one monitoring box, and a camera is installed in each monitoring box through a lifting shaft. A base internally provided with a storage battery is fixed to the lower portion of each monitoring box, and one side of each base is movably connected with a supporting rod for preventing the corresponding monitoring box from sinking. The monitoring box is fixed in the beach body through the base and the supporting rod, the camera lens is flush with the beach face through the lifting shaft, bed surface erosion and deposition deformation measurement in the extremely shallow water period of the tidal beach in the intertidal zone is achieved, and the problem that a traditional instrument cannot measure bed surface deformation under the extremely shallow water depth condition is solved. Scale marks for quantifying bed surface deformation are arranged on the monitoring box, so that the bed surface deformation process can be quantitatively acquired, and the bed surface deformation in the extremely shallow water period is digitalized.

Description

technical field [0001] The invention relates to the technical field of micro-geomorphological evolution monitoring, in particular to a monitoring device for local scour-silting deformation of a tidal flat bed in an intertidal zone. Background technique [0002] In the coastal environment, due to periodic tidal phenomena, the seabed is alternately submerged and exposed. In the early stage of tide opening, there will often be extremely shallow water periods with a water depth of about 10cm. During the extremely shallow water period, there will be a sharp increase in flow velocity and sediment concentration. The contribution of the resuspension and transport of bottom sediment during this period to the evolution of the landform during the entire tidal cycle cannot be ignored, and it is a problem worthy of quantitative research. At this stage, most of the equipment used for seabed surface monitoring is acoustic equipment, but acoustic equipment cannot be used for bed surface mon...

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The purpose of the invention is to provide a monitoring device for local scour-silting deformation of the tidal flat bed in the intertidal zone to solve the extreme The problem of sediment starting and beach erosion and silting in shallow water period

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