Seabed-based static penetration and sampling platform

Abstract

The invention provides a seabed-based static force injecting and sampling platform. A pulley base is connected with a stretching end which is penetrated into an oil cylinder; a first driving rope penetrates through a first movable pulley; one end of the first driving rope is connected with a frame through a fixed pulley; the other end of the first driving rope is connected with the upper end of a sliding plate through the fixed pulley; a second driving rope penetrates through a second moveable pulley; one end of the second driving rope is connected with the frame through the fixed pulley; the other end of the second driving rope is connected with the lower end of the sliding plate through the fixed pulley; a guide rail is arranged at a lateral end of the frame; the sliding plate is in sliding connection with the guide rail; an upper left-and-right clamping jaw is arranged on the sliding plate; a lower left-and-right clamping jaw is arranged at the lateral end of the frame and is on a downside position of the upper left-and-right clamping jaw; a stretching end of the upper stretching oil cylinder is connected with the upper left-and-right clamping jaw; the lower left-and-right clamping jaw is connected with the stretching end of a lower stretching oil cylinder; and the upper left-and-right clamping jaw and the lower left-and-right clamping jaw both can clamp or release a rod. The invention has the beneficial effect that the in situ detection and long-term in situ observation for the seabed precipitates and the synchronizing same-point measurement for static force sampling can be realized.

Description

technical field [0001] The invention relates to the technical fields of marine observation and marine engineering geology, in particular to a seabed-based static penetration and sampling platform. Background technique [0002] In the coastal zone, sediments are rapidly settled and accumulated through long-distance transport by rivers, and a series of dynamic changes occur under the influence of ocean hydrodynamics (waves, currents, tides, etc.), soil weight, and bioturbation, including sediment Consolidation compaction process, liquefaction rheological process, erosion resuspension migration process. During these processes, the composition, structure, physical and mechanical properties and engineering geological properties of the sediments undergo dynamic changes, which in turn lead to marine geological disasters such as coastal erosion, port siltation, submarine landslides, and turbid currents, thus causing serious damage to offshore platforms and submarine pipelines. , Su...

AI Technical Summary

Problems solved by technology

It is difficult for marine geophysical detection methods and in-situ detection methods to independently and effectively measure the rapid and complex engineering geological environment in coastal zones

Long-term in-situ observation methods are mostly penetrating probes / probes (such as pore water pressure probes, resistivity probes, geothermal probes, etc.); the penetrating method itself is still a technical difficulty in this field, and a single However, the continuous observation of the penetrating probe of the parameters still lacks sufficient reliability for describing the dynamic change process of complex sediments.

The sediment analysis method itself lacks sufficient timeliness. Among the current mainstream sampling methods, the reliability of gravity sampling is low, the cost of drilling sampling is high, and various sampling methods (gravity, piston, drilling, box, grab, etc.) etc.) will cause considerable disturbance to the sediment and have a great impact on data analysis

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