An experimental device for lateral buckling of submarine pipelines that removes the influence of soil at the end
A submarine pipeline and lateral buckling technology, which is applied in the direction of measuring devices, using stable tension/pressure testing material strength, instruments, etc., can solve the problems of pipeline influence and difficulty in lateral buckling experiments of submarine pipelines, and achieve good practicability Effect
Active Publication Date: 2018-08-31
TIANJIN UNIV
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Problems solved by technology
[0004] In view of the limitation of space, it is difficult to realize the lateral buckling experiment of the full-scale submarine pipeline, and only a limited length of the pipeline can be intercepted for research. However, the application of the finite length of the submarine pipeline model to simulate the actual submarine pipeline model will inevitably bring about many problems. , especially the influence of the end of the pipeline on the pipeline, therefore, how to remove the influence of the end soil on the experimental model has become a major problem in this field
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[0023] In order to make the advantages and features of the present invention more clearly understood, the technical solutions thereof will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0024] The lateral buckling experimental device of the submarine pipeline that removes the influence of the end soil of the present invention includes a submarine pipeline model 1, a device for eliminating the influence of the end soil, a sliding trolley 3, a tension sensor 14, a test soil box 11 and a device connected to the tension sensor 14 A collector and a computer connected to the collector;
[0025] refer to figure 1 and combine figure 2 , image 3 , Figure 4 :
[0026] The submarine pipeline model 1 is placed in the test soil box 11, which is composed of a sealed iron pipe 15 and two connecting rods 12 symmetrically connected to the upper end of the sealed iron pipe 15. The two connecting rods 12 respectively connect the soil resista...
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The invention discloses a submarine pipeline lateral buckling experimental device capable of removing the end oil influence. The device comprises a submarine pipeline model, an end soil influence removing device, a sliding trolley, a test soil box, a tension sensor, a collecting instrument connected with the tension sensor and a computer connected with the collecting instrument. The submarine pipeline lateral buckling experimental device capable of removing the end soil influence has the advantages that by means of flexible connection of the end soil influence removing device and the two ends of the submarine pipeline model, the technology of removing the influence of the end soil to an experimental model is achieved, the problem that in the technical filed, a person can only cut out a section of pipeline with a finite length for research, and the stress condition and soil condition in the lateral buckling deforming process of a submarine pipeline cannot be observed comprehensively through model experiments is solved, and the good practicability is achieved.
Description
technical field [0001] The invention relates to a test device in the technical field of marine engineering, and more specifically, the invention relates to a lateral buckling test device of a submarine pipeline that removes the influence of soil at the end. Background technique [0002] Due to the increasing scarcity of land oil resources, the development of offshore oil and gas resources has developed rapidly. Submarine pipelines are one of the main modes of offshore oil and gas transportation. With the development and utilization of offshore oil and gas resources, the working pressure of pipelines continues to increase, and their design temperatures generally reach or exceed 100°C, and may even reach 150°C. There are more and more subsea pipelines operating at high temperature / pressure. When the operating temperature and pressure of the pipe are higher than the surrounding environment, the pipe will expand, and if the axial deformation of the pipe is limited, then the pip...
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IPC IPC(8): G01N3/08
CPCG01N3/08G01N2203/0003G01N2203/0017G01N2203/0032
Inventor 韩庆华徐万海芦燕马烨璇
Owner TIANJIN UNIV