Submarine landslide deep deformation in-situ real-time monitoring device and analysis method

Abstract

The invention discloses a submarine landslide deep deformation in-situ real-time monitoring device and analysis method, the device comprises a long hose, a monitoring unit, a processing unit and an upper computer, the monitoring unit comprises a plurality of monitoring subunits, and the processing unit comprises a data processor; and the monitoring subunits are installed in the long hose in the length direction of the long hose, the two ends of the long hose are sealed, each monitoring subunit comprises two mutually orthogonal MEMS accelerometers, the MEMS accelerometers in the long hose are connected with the data processor, and the data processor is connected with the upper computer. The device has the advantages that when the seabed stratum around the device changes, the long hose is driven to bend and move, the MEMS accelerometer can move along with the overall movement of the device, the accelerometers at different levels can transmit own attitude information to the data processor, and the attitude information is analyzed and processed by the data processor and transmitted to the upper computer; and finally, the upper computer carries out visualization processing, and reconstructs and displays the stratum deep displacement deformation information.

Description

technical field [0001] The invention belongs to the field of seabed monitoring, in particular to an in-situ real-time monitoring device and analysis method for deep deformation of a seabed landslide. Background technique [0002] Submarine landslides refer to unconsolidated soft sediments on the seabed or rocks with weak structural surfaces, which move downward along the weak structural surfaces under the action of gravity, including geological processes such as sliding, landslides and debris flows, which are widely occurring A gravity flow transport mechanism on the continental slope. The formation of submarine landslides is controlled by many factors. On the one hand, it is due to the internal structure and dynamic conditions of the sediments, including the high clay content in the seabed sediments, the local high pressure generated by the decomposition of natural gas hydrates, and the decrease in the strength of hydrates after decomposition; On the other hand, it is indu...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the existing landslide geological disaster monitoring devices, such as complex structure, huge engineering quantity, small monitoring range, and low data accuracy, the present invention provides an in-situ real-time monitoring device and analysis method for deep deformation of submarine landslides, which can The seabed at a depth of thousands of meters realizes in-situ monitoring of formation deformation and real-time visual display of the host computer, further providing technical support for monitoring and early warning of geological disasters such as submarine landslides, topographical subsidence caused by decomposition of natural gas hydrate, earthquakes, etc.

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