Novel submarine pipe soil interaction model test platform

Abstract

The invention provides a novel submarine pipe soil interaction model test platform which comprises a model pipe, a power device and a model slot provided with a simulated seabed. The novel submarine pipe soil interaction model test platform is also provided with an upright post, a cross beam, a clamping plate, a speed reducer, a steel wire rope, a pulley, a fixed pressing plate, a fastening bolt, a vertical power device, a transverse power device, a connecting mechanism, a pull wire type displacement sensor, a bending moment strain gauge, a pore water pressure sensor, a soil reaction force sensor, a model pipe folding and unfolding device, a hydraulic servo system and a data collection system. The novel submarine pipe soil interaction model test platform has the beneficial effects that the model test study of submarine pipe soil interaction characteristics under the deep sea complex cyclic dynamic load environment can be realized, and the model test efficiency and the result accuracy are improved to play huge promoting and pushing roles in further understanding the submarine pipe soil interaction characteristics.

Description

technical field [0001] The invention relates to a seabed pipe-soil interaction model test platform. Background technique [0002] The safe laying of submarine pipelines is one of the important links in offshore oil and gas engineering. The laying of pipelines in the deep sea is affected by complex environmental factors such as wind, waves, and currents. The interaction between pipelines and seabed is also more complicated, and pipelines exhibit strong nonlinear dynamic characteristics. Therefore, the pipe-soil interaction under the deep sea complex load environment is the focus of current research at home and abroad and the future development direction. Relevant theoretical research and establishment of numerical models require a large amount of reliable and detailed experimental data to verify and optimize. The model test method has the advantages of low cost, easy operation, and less external interference factors, and plays an irreplaceable role in scientific research. ...

AI Technical Summary

Problems solved by technology

At present, scholars at home and abroad have conducted a large number of experimental studies on the interaction between submarine pipes and soils, but none of them are systematic enough, and there are few mature test instruments: some cannot truly simulate the movement form of the submarine pipeline touchdown area, such as ; For the influence of vibration amplitude, frequency and cycle times, see

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