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Real-time monitoring method for stability of muddy seabed channel side slope

A real-time monitoring and stability technology, applied in measuring devices, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc. Problems such as the normal operation of waterways, to achieve the effect of real-time monitoring and real-time detection

Active Publication Date: 2019-02-15
JIANGSU OCEAN UNIV
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Problems solved by technology

The direct method is to analyze the physical properties of channel slope sediments in the laboratory, but the muddy seabed channel sediments have high water content, so it is very difficult to take samples of channel slope sediments, and the original state of the sediments will inevitably be destroyed during sampling , even on-site measurement is laborious and time-consuming, and it is difficult to analyze the slope stability in real time and dynamically
The indirect method is to use survey ships to install shallow stratum profiles and other detection systems to detect waterways, and analyze the stability of waterway slopes based on acoustic images. To achieve continuous monitoring, survey ships need to repeatedly detect waterways, which will affect the normality of waterways. Operation, in special weather, especially in harsh environments such as strong winds and waves, it also limits the sailing detection

Method used

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  • Real-time monitoring method for stability of muddy seabed channel side slope

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Experimental program
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Effect test

Embodiment

[0042] a. Deploy fixed-point buoys according to the sediment layer and slope angle of the channel slope. The buoy system includes buoys, tailpipes, GPS positioning system, remote transmission instruments, solar power supply system, anti-collision system, light warning system, instrument rack and bracket, anchoring equipment. The solar power supply system includes solar panels, battery packs, solar The controller and inverter, and the solar panels are installed on the outside of the floating body, located in 4 directions, absorbing solar energy in all directions and converting it into electrical energy. Sensors and antennas are installed on the brackets, including satellite communication machines, VHF radio antennas, GPRS antennas, and GPS antennas.

[0043] b. The parametric array narrow-wave shallow formation profiling system is installed on the buoy. Shallow strata profiling system includes mainframe, transducer and motion sensor.

[0044]c. The parametric array narrow-wav...

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Abstract

The invention discloses a real-time monitoring method for stability of a muddy sea channel side slope. The real-time monitoring method comprises steps of: placing a buoy at the edge of the channel; mounting an acoustic profile detection system on the buoy; emitting sound waves to the seabed through the sediment layer of the seabed channel side slope by the acoustic profile detection system; receiving seabed sound waves and converting into a sediment profile acoustic image by a receiving system; transmitting the sediment acoustic image signal to a monitoring center through a transmission system; and monitoring and analyzing the stability of the channel side slope in real-time after the monitoring center processes the transmitted acoustic image. The real-time monitoring method for the stability of the muddy seabed channel side slope provided by the invention does not affect the normal operation of the ship, and realizes real-time monitoring in all weather.

Description

technical field [0001] The invention belongs to the technical field of marine monitoring, and relates to a method for real-time monitoring of the stability of muddy submarine channel slopes. Background technique [0002] The instability and slumping of muddy seabed channel is a natural adjustment process for the artificially excavated channel slope to obtain a stable state. Even if the slope is very gentle, when the slope angle is less than 1°, the channel may become unstable and slump, changing the channel. geometry, leading to port congestion, causing significant economic and social losses. According to the movement mechanism, deformation degree and movement state of the general water-saturated soil, slope soil instability and landslides can be divided into three categories: creep, slide and flow. Creep refers to the slow, continuous, and long-term irreversible deformation of the slope under a certain external force, but there is no obvious displacement on the whole, whic...

Claims

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Application Information

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IPC IPC(8): G01N29/06
CPCG01N29/0654G01N2291/023
Inventor 张存勇
Owner JIANGSU OCEAN UNIV
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