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Anti-slide pile soil arching effect evolution mechanism visualization model test device and test method

A model test device, soil arching effect technology, applied in soil material testing, material inspection products, etc., can solve problems such as non-visualization

Pending Publication Date: 2018-12-18
SHANDONG JIANZHU UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the non-visualization problem existing in the existing physical tests on the evolution of the soil arch effect, the present invention provides a visual model test device and test method for the evolution of the soil arch effect of anti-slide piles

Method used

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  • Anti-slide pile soil arching effect evolution mechanism visualization model test device and test method
  • Anti-slide pile soil arching effect evolution mechanism visualization model test device and test method
  • Anti-slide pile soil arching effect evolution mechanism visualization model test device and test method

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Embodiment Construction

[0029] Such as Figure 1 to Figure 4 As shown, the visual model test device for the evolution mechanism of the anti-slide pile soil arch effect includes a visual model box 7, a loading device 2, a standard sand 6, a baffle plate on both sides 1, a stripping plate 5, a loading plate 3, and a steel plate 8 instead of a pile , cushion block 4 and the digital camera that is arranged on the outside of visualization model box 7; Described visualization model box 7 is the rectangular parallelepiped structure of top and bottom end opening that forms by splicing four pieces of transparent plexiglass, and the junction of plexiglass Seal with waterproof glue. Described standard sand 6 adopts Fujian Pingtan standard sand.

[0030] The loading device 2 includes a lower structure 2a, an upper structure 2b and a jack 2c. The lower structure 2a includes a quadrangular bottom surface and vertically upward steel pipes arranged at the four corners of the bottom surface, and the pads 4 are arran...

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Abstract

The present invention relates to an anti-slide pile soil arching effect evolution mechanism visualization model test device and a test method. The device comprises a visualization model box, a loadingdevice, standard sand, two-side baffle plates, a material dropping plate, a loading plate, a steel plate of a replacement pile, a cushion block and a digital camera arranged outside the visualizationmodel box. The method comprises the following steps: by using the loading plate, gradedly acting a load on the soil via the loading plate; rotating a bottom rotating plate to allow the material dropping plate to drop; loading until that the soil in the visualization model box is collapsed and damaged; and separately shooting the image(s) of the standard sand by the side of the visualization modelbox under the loads of all grades in the test process with the digital camera. According to the test device and the test method, the deformation and development law of the soil around the pile underthe action of the external load can be studied more conveniently and intuitively via the visualization model test.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering and geological engineering, and relates to a model test device and a test method, in particular to a model test device and a test method for a visualization of the evolution mechanism of the soil arch effect of an anti-slide pile. Background technique [0002] Soil arching effect is the most important reinforcement mechanism of anti-slide piles used in geotechnical engineering problems such as slope reinforcement. The scope of the soil arch effect is directly related to the force transmission characteristics of the soil arch and the success or failure of the anti-slide pile support. Since Terzaghi proved the existence of the soil arch effect through the trap door test, scholars at home and abroad have done a lot of research on the soil arch effect through field tests or numerical simulation software, and have drawn many conclusions about the formation and evolution of the soil arc...

Claims

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Application Information

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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 张思峰齐辉薛志超张正旭陈兴吉周磊生祝少纯张义栋韩冰胡超孙辉吴敬国王南宁
Owner SHANDONG JIANZHU UNIV
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