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A sliding variable size rigid triaxial instrument

A technology of variable size and triaxial instrument, which is applied in the direction of instruments, scientific instruments, strength characteristics, etc., to achieve the effect of convenient production, simple structure and multiple loading functions

Inactive Publication Date: 2018-04-20
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the above-mentioned defects and deficiencies in the prior art, the present invention provides a sliding-type variable-size rigid triaxial instrument, which can keep the sample regular during the compression process, uniformly deformed in all directions, and spread over all parts of the sample. It can be pressurized to the predetermined load value, eliminating the phenomenon of stress concentration, and truly and effectively realizing true three-dimensional loading

Method used

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  • A sliding variable size rigid triaxial instrument
  • A sliding variable size rigid triaxial instrument
  • A sliding variable size rigid triaxial instrument

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Embodiment Construction

[0022] In order to better understand the technical features, technical content and technical effects of the present invention, the accompanying drawings of the present invention will now be described in more detail in conjunction with the embodiments.

[0023] Below in conjunction with accompanying drawing and embodiment the patent of the present invention is further described.

[0024] like Figure 1-4 As shown, the present invention provides a sliding variable size rigid triaxial instrument, including a base 15, a loading frame 1, a loading box, a lifting platform 13 and an axial pressurization device 14, and the loading frame 1 is fixed on the base 15 Above, the axial pressurization device 14 is inside the base 15, the output shaft of the axial pressurization device 14 is fixedly connected with the lifting platform 13, and the loading box is fixed on the lifting platform 13, And the loading box is placed in the loading frame 1;

[0025] The loading box includes an upper p...

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Abstract

The invention provides a sliding-type size-variable rigid triaxial instrument which comprises a base, a loading frame, a loading box, a lifting platform and axial pressurizing equipment. The loading frame is fixed on the base, the axial pressurizing equipment is arranged in the base, an output shaft of the axial pressurizing equipment is fixedly connected with the lifting platform, and the loading box is fixed on the lifting platform and arranged in the loading frame. According to the sliding-type size-variable rigid triaxial instrument, in the whole compressing process, a test sample can be kept structured, deformation in all the directions is uniform, all the portions all over the test sample can be pressurized to a preset load value, the stress concentration phenomenon is eliminated, and true three-dimensional loading is achieved truly and effectively.

Description

technical field [0001] The invention relates to a sliding type variable-size rigid triaxial instrument, which belongs to the technical field of geotechnical testing. Background technique [0002] Triaxial test is a test technology means to test the strength characteristics and deformation characteristics of rocks, soils, etc. The loading devices of the real triaxial experiment are mainly divided into: rigid loading, flexible loading, and mixed boundary loading. The flexible loading method will make the surface stress and strain of the sample uneven. For rigid loading and mixed boundary loading methods, when the compression deformation of the sample is large, the bearing plates on two adjacent surfaces will interfere with each other, that is, the phenomenon of "fighting" or "corner effect", resulting in no further loading. For this problem, part of the reserved compression method is used. Even if the size of the bearing plates in the two adjacent loading directions is small...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/02G01N3/12
CPCG01N3/02G01N3/12
Inventor 陈旭光姜育科王媛
Owner HOHAI UNIV
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