Submarine sediment pore pressure observation probe rod gravity type penetration device and method

Abstract

The invention relates to a submarine sediment pore pressure observation probe rod gravity type penetration device and method. The submarine sediment pore pressure observation probe rod gravity type penetration device comprises a control cabin and an observation probe rod, a pressure-resistant cabin and an assembling cabin are formed in the control cabin, a first hanging ring is fixed to the pressure-resistant cabin, an underwater acoustic transducer, a pressure sensor and an attitude sensor are correspondingly installed on the pressure-resistant cabin, the assembling cabin is provided with a mechanical lock catch driven by a first driving mechanism, and a first acquisition control system and a first battery pack are arranged in the pressure-resistant cabin; and the observation probe rod comprises a probe rod body with a pore pressure sensor embedded in the surface, one end of the probe rod body is provided with a penetration tip, the other end of the probe rod body is fixedly provided with a data acquisition cabin, one end, away from the probe rod body, of the data acquisition cabin is fixedly provided with a second hanging ring, and the data acquisition cabin is internally provided with a data acquisition instrument, a second acquisition control system and a second battery pack used for supplying power. The submarine sediment pore pressure observation probe rod gravity type penetration device is simple, easy to use and high in working efficiency, provides real and reliable observation data for monitoring and early warning of submarine geological disasters and ocean engineering construction, and has important practical significance.

Description

technical field [0001] The invention relates to the technical field of marine engineering geology and seabed in-situ long-term observation, in particular to a gravity penetrating device and method of a seabed sediment pore pressure observation probe rod. Background technique [0002] my country is a large coastal country. In recent years, the engine effect of my country's marine science and technology innovation to promote the development of marine undertakings has become prominent. Large-scale marine engineering construction is in full swing. The safety issues of marine engineering construction in the complex and changeable marine environment have become increasingly prominent. top priority for development. [0003] As the most direct and effective means of seabed observation, the submarine pore pressure observation probe can continuously, long-term, and real-time monitor the pore pressure changes inside the seabed sediments, and the monitoring of the seabed sediment pore pr...

AI Technical Summary

Problems solved by technology

However, this penetration method requires the development of a special static penetration device to complete the penetration. This type of static penetration device often weighs more than one ton, is bulky, and expensive. Generally, small operating vessels cannot meet the requirements of offshore operations. , low work efficiency

The huge volume and weight cause great disturbance to the seabed sediments, seriously affecting the actual observation results

In addition, hydraulic oil is prone to leakage in the deep sea environment, polluting the marine ecological environment

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