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Physical model device for testing influence of instability of deep foundation pit on adjacent buried pipelines

A technology for buried pipelines and test devices, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., to achieve the effect of significant economic benefits, easy operation, easy repair or replacement

Pending Publication Date: 2018-05-08
SHAOXING UNIVERSITY
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Problems solved by technology

[0008] In order to overcome the deficiency in the prior art that the influence of deep foundation pit instability on adjacent buried pipelines cannot be simulated, the present invention provides a physical model test device capable of simulating the influence of deep foundation pit instability on adjacent buried pipelines

Method used

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  • Physical model device for testing influence of instability of deep foundation pit on adjacent buried pipelines
  • Physical model device for testing influence of instability of deep foundation pit on adjacent buried pipelines
  • Physical model device for testing influence of instability of deep foundation pit on adjacent buried pipelines

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] refer to Figure 1 to Figure 8 , a physical model test device for the influence of deep foundation pit instability on adjacent buried pipelines, including a device frame, a position control system, a support structure and a mobile device.

[0037] In order to make full use of the space of the test device, the device frame 1 is designed with a three-layer pipeline sliding platform. The distance between the three-layer pipeline sliding platforms is 300mm and the width is 400mm, which can ensure that the buried pipeline 6 has enough moving space in the test device, and can maximize the realization of Different positions of the buried pipeline 6.

[0038] The pipeline bracket 7 is installed in the pipeline sliding platform, and the degree of freedom is limited by the upper chute 17 and the lower chute 18. Through the sliding action of the bearing 13, it can slide l...

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Abstract

The invention relates to a physical model device for testing influence of instability of a deep foundation pit on adjacent buried pipelines. A device frame includes rectangular openings, a spring support base slideway and an arc-shaped groove. The rectangular openings are located on the left and right sides of a device body, and at least two rectangular openings arranged up and down are formed ineach side; a pipeline sliding platform includes sliding chutes, pipeline brackets and sleeves, the sliding chutes are located at the upper and lower ends of each rectangular opening, the pipeline brackets are slidably located in the sliding chutes, the sleeves are embedded in rings arranged by the pipeline brackets, and both ends of each buried pipeline are located in a corresponding left sleeve and a corresponding right sleeve respectively; the spring support base slideway is located in the middle portion of the front end of the device frame, and the arc-shaped groove is formed in the middleof the bottom end of the device frame; a supporting and protecting structure includes a spring support base, a spring and a soil retaining board. The device can simulate the influence of instability of the deep foundation pit on the adjacent buried pipelines of different locations and different diameters, measure and analyze strain characteristics and a destruction process of the buried pipelinesin the test process, and provide test basis for destruction contributing factors of the buried pipelines.

Description

technical field [0001] The invention relates to a simulation test device in the pipeline transportation industry, in particular to a physical model test device for simulating the influence of deep foundation pit instability on adjacent buried pipelines. Background technique [0002] The physical model test of pipe-soil interaction belongs to the category of geotechnical engineering model tests. Its theory originated from the structural model test established in the early 20th century. There are many research directions such as model test, pipe-soil interaction centrifugal model test and pipe-soil interaction comprehensive model test. Among them, the pipe-soil interaction frame model test means that in the usual gravity field, the model is made by using similar materials that meet the similarity criterion in the frame model slot, and the deformation and various parameters are measured when the model meets the main boundary conditions. Mechanical properties parameters. This ...

Claims

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Application Information

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IPC IPC(8): G01N3/14
CPCG01N3/14G01N2203/0274G01N2203/0075G01N2203/0019
Inventor 雍睿李朝旺邵晓蓉夏才初赵程张国柱
Owner SHAOXING UNIVERSITY
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