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Experimental device and method for simulating impact effect of falling object on buried pipe cable

An experimental device and umbilical technology, which is applied in the fields of ocean, port, and traffic engineering, can solve the problems that it is difficult to truly restore the action process of buried umbilical cables, and achieve the effects of strong anti-interference ability, small size, and high precision

Pending Publication Date: 2020-04-10
TIANJIN UNIV
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Problems solved by technology

Due to the anisotropy of the seabed soil properties and the discreteness of the protective layer material, it is difficult for the numerical model to truly restore the action process of the ship's emergency anchorage on the buried umbilical cable

Method used

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  • Experimental device and method for simulating impact effect of falling object on buried pipe cable
  • Experimental device and method for simulating impact effect of falling object on buried pipe cable
  • Experimental device and method for simulating impact effect of falling object on buried pipe cable

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Embodiment Construction

[0055] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the...

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Abstract

The invention provides an experimental device and method for simulating the impact effect of a falling object on a buried pipe cable. The experimental device is composed of a simulation water tank, asoil box, a ship movement and falling object throwing system, a pipe cable model, a measurement system, a control host and a synchronizer. The impact process of the ship in a motion state on the buried pipe cable during emergency anchor dropping can be simulated; the impact instantaneous process is captured; the generated data is analyzed and researched; and an optical fiber strain sensor and a miniature pressure sensor are adopted. Compared with a traditional mode, the appearance size, the structural strength and the mechanical property of the pipe cable are not influenced; meanwhile, a synchronizer is adopted for controlling strain measurement, impact force measurement, falling object speed measurement and a soil body measurement instrument, synchronous measurement and recording of all physical parameters are achieved, and revealing and analyzing of the impact process and the pipe and cable damage mechanism are facilitated.

Description

technical field [0001] The invention mainly relates to the fields of ports, oceans, and traffic engineering, in particular to an experimental device and method for simulating the impact effect of buried umbilical cables by falling objects. Background technique [0002] Underwater umbilical structures such as submarine tunnels, oil pipelines, and communication optical cables are a similar type of marine engineering structure, which play an important role in the fields of marine transportation, marine energy, and pipeline communications. Such umbilical structures are usually buried at a certain depth below the surface of the seabed and protected by an overburden layer above. With the rapid development of the maritime shipping industry, the offshore area covered by the port is becoming larger and larger, and the tonnage of ships is also developing towards large-scale development. The density of ships entering and leaving the port is also greatly increased, especially when the u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/303G01M7/08
CPCG01N3/303G01M7/08G01N2203/028
Inventor 臧志鹏张慈珩方皓宇徐菲繁吕沅庚
Owner TIANJIN UNIV
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