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Visual triaxial testing machine

A triaxial test and camera technology, applied in the direction of applying stable tension/pressure to test material strength, suspension and porous material analysis, permeability/surface area analysis, etc., can solve problems such as glass breakage and unusability, and achieve Easy to assemble, avoid stress concentration, and occupy a small space

Active Publication Date: 2017-02-22
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the brittleness of the glass material, a strong seal cannot be used in the sealing link, otherwise the glass will shatter

Method used

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  • Visual triaxial testing machine
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Embodiment Construction

[0035] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0036] Such as figure 1 As shown, the fixed frame 1 is a frame structure, and the four corners of the bottom of the fixed frame 1 are equipped with anchor bolts. A lower positioning plate 2 is arranged on the top of the fixing frame 1, and the lower positioning plate 2 is preferably rectangular and located on a horizontal plane. Directly above the lower positioning plate 2 is provided with an upper positioning plate 4, and the upper positioning plate 4 is also preferably rectangular. The reaction force column 3 is connected, and the reaction force column 3 is perpendicular to the upper positioning plate 4, and the upper and lower ends of the reaction force column 3 are locked with the corresponding positioning plate by nuts.

[0037] Such as figure 1 , figure 2 As shown, a pedestal is fixed at the center of the top surface of the lower positioning plate ...

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Abstract

The invention discloses a visual tri-axial testing machine; a pedestal is fixed in the centre of the top surface of a lower locating plate (2); a transparent pressure chamber (5) is installed on the pedestal; a loading head (8) is arranged at the lower end of a piston of a hydraulic cylinder (7); the loading head (8) is positioned below an upper locating plate (4) and is opposite to a pressure rod of the transparent pressure chamber (5); a linear differential transformer (9) is arranged right above the hydraulic cylinder (7); a probe of the linear differential transformer (9) is vertical downwards and contacted with the upper end of the piston of the hydraulic cylinder (7); and four cameras (11) and three vidicons (12) are arranged on the periphery of the transparent pressure chamber (5). The visual tri-axial testing machine disclosed by the invention is simple and compact in structure, convenient to assemble, low in cost, good in stability, high in hardware control test precision, good in reliability and long in holding time; the radial deformation of a test piece can be visually observed; and the radial deformation of the test piece can be measured relatively accurately in combination with image processing system software through photographing equipment.

Description

technical field [0001] The invention relates to a visual three-axis testing machine, which is used for testing the mechanical characteristics of rock (soil). Background technique [0002] The triaxial test system is a new type of test equipment in line with the modern rock and soil mechanics research field to study the mechanical properties of rock (soil). Confining pressure system, rock extensometer, high and low temperature system, pore water pressure system, rock direct shear test system, and rock shearing and splitting fixtures can be configured according to different requirements. It can automatically complete triaxial compression tests of rocks under different confining pressures, pore permeability tests, high and low temperature environmental tests, etc., and can perform triaxial control in multiple control modes such as unidirectional low cycle cycle and combined waveform program control set by the user. test. Rock triaxial test is an important means to study rock ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/12G01N15/08
Inventor 彭守建大久保诚介张海龙杨勤许江王维忠马书敏汤杨陈灿灿赵开冯丹耿加波陈月霞张超林
Owner CHONGQING UNIV
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