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Experimental system of soil body-seabed multi-span pipeline-ocean current multi-field coupling effect

An experimental system and subsea pipeline technology, applied in the field of experimental systems and experimental devices for studying the coupling effect of soil-subsea multi-span pipelines-ocean current multi-field, can solve problems such as pipe-soil interaction at shoulders that are not really considered , to achieve the effect of easy processing, reduced interference, compact and simple design

Active Publication Date: 2016-09-28
TIANJIN UNIV
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Problems solved by technology

[0004] However, the experiments carried out did not really consider the pipe-soil interaction at the shoulder, but used a simplified spring to approximate the soil effect

Method used

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  • Experimental system of soil body-seabed multi-span pipeline-ocean current multi-field coupling effect
  • Experimental system of soil body-seabed multi-span pipeline-ocean current multi-field coupling effect
  • Experimental system of soil body-seabed multi-span pipeline-ocean current multi-field coupling effect

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Embodiment Construction

[0058] In order to make the present invention more clearly understood, the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] refer to figure 1 , the experimental system of soil-submarine multi-span pipeline-ocean current multi-field coupling effect of the present invention includes a submarine pipeline model 1, a first end soil support device 2, a second end soil support device 2', a transverse test Support frame 3, trailer 20, multi-span soil device 21, tension sensor 25, strain acquisition instrument and computer.

[0060] The two ends of the submarine pipeline model 1 respectively pass through the first end soil support device 2 and the second end soil support device 2' to connect with the support plates 12 on both sides thereof, and the first end The upper soil supporting device 2 and the second end soil supporting device 2' and the tops of the two supporting plate...

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Abstract

The invention discloses an experimental system of a soil body-seabed multi-span pipeline-ocean current multi-field coupling effect. The system includes a seabed pipeline model, a first end part soil body supporting device, a second end part soil body supporting device, a transverse test supporting frame, a trailer, a multi-span soil body device, a tension sensor, a strain collector and a computer. The system has advantages that the system is simple and skillful in design, convenient to process, mount and disassemble, low in cost and solves a problem of application of over-shoulder soil body in a seabed pipeline vortex-induced vibration experiment with the soil body-seabed multi-span pipeline-ocean current multi-field coupling effect in a vertical uniform incoming flow condition. The system is a necessary experimental device for studying seabed pipeline vortex-induced vibration with soil body-seabed multi-span pipeline-ocean current multi-field coupling effect and has important application value.

Description

technical field [0001] The invention relates to a test device in the technical field of ocean engineering, and more specifically, the invention relates to an experiment system for studying the coupling effect of soil body-submarine multi-span pipeline-ocean current multi-field. Background technique [0002] Submarine pipelines are indispensable key equipment for deep-sea oil and gas exploration and transportation, and are known as the "lifeline of marine oil and gas". Due to the complex topography of the deep seabed, it is difficult and expensive to lay pipelines. In actual projects, pipelines are often laid directly on the surface of the seabed without any burial treatment. In addition, the phenomenon of long spans and multi-spans is formed more and more due to the erosion of ocean currents. more common. The appearance of the suspended pipe span changes the load and stress state of the pipe, especially when the sea current flows through, the suspended pipe span will appear...

Claims

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Application Information

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IPC IPC(8): G01M7/02
CPCG01M7/02
Inventor 徐万海罗浩马烨璇栾英森
Owner TIANJIN UNIV
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