A real-time monitoring method for the stability of muddy seabed channel slope

Abstract

The invention discloses a real-time monitoring method for the stability of a silty submarine channel slope. The receiving system receives and converts the seabed acoustic waves into acoustic images of sedimentary profiles, and transmits the acoustic image signals of the sediments to the monitoring center through the transmission system. The monitoring center processes the transmitted acoustic images and conducts real-time monitoring and analysis of the stability of the channel slope . The real-time monitoring method for the stability of the muddy submarine channel slope provided by the invention does not affect the normal operation of the ship, and realizes all-weather real-time monitoring.

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...

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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

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