Improved type triaxial apparatus

A technology of triaxial instrument and triaxial pressure, which is applied in the direction of testing material strength by applying stable shear force, can solve the problems of triaxial instrument difficult to popularize and low efficiency, so as to save testing time, reduce cost and utilize The effect of space and resources

Inactive Publication Date: 2011-07-13
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Because the traditional triaxial instrument can only test one sample at a tim

Method used

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Embodiment Construction

[0022] Such as figure 1 As shown, the improved triaxial instrument is provided with an axial pressurizing device 22 , a jacking platform 1 , a triaxial pressure chamber platform 23 , a reaction force platform 24 , and an upper beam 25 in sequence from bottom to top. The axial pressing device 22 and the upper beam 25 are fixed to each other by means of supports 26 . Such as figure 2 As shown, four pressure chamber units 2 are evenly arranged in the three-axis pressure chamber platform 23 .

[0023] Such as image 3 As shown, each pressure chamber unit 2 includes a top cover 3 , a base 4 for placing a sample, and a pressure cylinder 5 . The top cover 3 , the base 4 and the pressure cylinder 5 form a closed space 8 . Such as image 3 , Figure 4 As shown, the edges of the top cover 3 and the base 4 are compressed by three pull rods 6, and O-rings 7 are arranged between the pressure cylinder 5, the top cover 3, and the base 4 to keep the closed space 8 sealed. The piston 9...

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Abstract

The invention discloses an improved type triaxial apparatus, which is formed by additionally assembling and improving the traditional strain control triaxial apparatus and used for shearing tests of soil samples. The improved type triaxial apparatus is sequentially provided with axial pressurizing equipment, a lifting platform, a triaxial pressure chamber platform, a counter force platform and an upper cross beam from bottom to top, wherein the axial pressurizing equipment and the upper cross beam are mutually fixed through a support member; the triaxial pressure chamber platform is internally provided with a plurality of pressure chamber units; and the counter force platform is correspondingly provided with a plurality of sensors. The improved type triaxial apparatus can be used for loading a plurality of samples for one time and simultaneously testing the samples, thereby preventing the troubles of multiple tests and saving the test time; and besides, because the plurality of pressure chamber units share a pressure device and a data processing data and sufficiently utilize the axial pressurizing equipment, the lifting platform, the upper cross beam, and the like which are arranged in a principal machine of the traditional strain control triaxial apparatus, the improved type triaxial apparatus can also sufficiently utilize the space and the resources and reduce the cost.

Description

technical field [0001] The invention relates to an improved triaxial instrument, in particular to an improved triaxial instrument with high test efficiency. Background technique [0002] The triaxial instrument is the equipment for shear test, which is used to measure the shear strength of soil samples such as cohesive soil, silt soil and sandy soil. The state stipulates that the direct shear test should be replaced by the triaxial shear test. [0003] A traditional triaxial instrument mainly includes an axial pressurizing device, a lifting platform, a triaxial pressure chamber, and a beam. During the test, a sample is placed in the triaxial pressure chamber, and the lifting platform moves upwards, and the sample is subjected to the pressure exerted by the piston and the base in the triaxial pressure chamber, resulting in deformation until it is destroyed. [0004] Because the traditional triaxial instrument can only test one sample at a time, the efficiency is low, so the ...

Claims

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Application Information

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IPC IPC(8): G01N3/24
Inventor 赵玉花沈日庚
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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