Wave flow-structural object-seabed power coupling experimental simulating method and appts. thereof

A technology of experimental simulation and dynamic coupling, applied in measurement devices, instruments, scientific instruments, etc., can solve problems such as the inability to reproduce the stress state of marine structures
CN1563984AInactive Publication Date: 2005-01-12INST OF MECHANICS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INST OF MECHANICS - CHINESE ACAD OF SCI
Publication Date
2005-01-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

Simulated structure is sank to simulated seabed in simulated experimental flume, detecting is carried out for dynamic load borne by structure, dynamic response of key position and change of dynamic shift by using sensor. Height of wave, speed of flowfield around structure is detected through wave gage, velocimete for particle image and Doppler laser velocimeter. Dynamic response of soil mass is detected by using pore water pressure sensor and earth-pressure cell. Detected data are collected and processed synchronistically through multichannel data acquisition system in order to reproduce actual stress state of the structure. The invention also discloses simulated experimental flume, where there is simulated seabed soil mass filled.
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Description

Technical field

[0001] The present invention relates to a dynamic coupling experimental simulation method and device of'wave-current-structure-seabed' for studying the stability of marine structures. Background technique

[0002] In offshore oil exploitation and port engineering construction, it is necessary to ensure the stability of marine structures (such as offshore platforms, submarine pipelines, breakwaters, etc.) under the action of waves and currents. There are numerous accidents of marine structure instability caused by wave current loads every year. For example, my country’s Bohai Sea waters caused a serious situation in which the pipeline was suspended up to 2 feet from the seabed and the span reached 440 feet due to tidal erosion. Last year, my country’s Pinghu Oilfield suffered a serious accident of gas pipeline rupture due to erosion.

[0003] Since the 1950s, starting from the requirements of shipbuilding, water conservancy, hydropower, shipping, marine engineering...

Claims

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