Triaxial test apparatus and method suitable for weak rocks

A triaxial test, rock technology, applied in the direction of measuring device, using stable tension/pressure test material strength, strength characteristics, etc., can solve the problems of high price, large floor area, high cost, etc., and achieve low cost and convenience Easy to use and device structure

Active Publication Date: 2016-12-21
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional rock triaxial testing machines are expensive and costly, and the related equipment occupies a large area and requires a large laboratory. At the same time, the test machine is heavy and difficult to move
[0004] The rock triaxial testing machine can obtain the mechanical properties of most rock materials through triaxial loading, and in the pressure test of rocks and rocks with weak and broken materials, due to the weakness of some rock materials, the rocks and rocks will will be crushed, so the conventional three-axis cylinder pressurized testing machine is not easy to collect the mechanical parameters of weak and broken rock specimens
However, the indoor test equipment limits the size of the sample. Therefore, it is necessary to solve the problem of triaxial test equipment that can carry out different sample sizes and reduce the current sample size span.

Method used

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  • Triaxial test apparatus and method suitable for weak rocks
  • Triaxial test apparatus and method suitable for weak rocks
  • Triaxial test apparatus and method suitable for weak rocks

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Experimental program
Comparison scheme
Effect test

Embodiment

[0047] Embodiment: a kind of triaxial test device applicable to weak rock, its structure is as follows Figure 1-3 shown, including:

[0048] The base 22 is fixedly connected with a support 1; the support 1 is a hollow structure, and the support 1 has a side plate and a cross-shaped top plate fixedly connected with the side plate, and the middle part of the lower surface of the cross-shaped top plate and the Z-axis stress loading mechanism 2 fixed connections.

[0049] The side plate is divided into upper and lower parts, the lower part is fixedly connected with the base 22, the upper part is fixedly connected with the cross-shaped top plate, and the upper part and the lower part are fixedly connected with the stress loading mechanism.

[0050] The stress loading mechanism includes two, namely an X-axis stress loading mechanism 4 and a Y-axis stress loading mechanism 3 , and the X-axis stress loading mechanism 4 is located above the Y-axis stress loading mechanism 3 .

[005...

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Abstract

The invention relates to a triaxial test apparatus and method suitable for weak rocks. The apparatus mainly comprises a pedestal, and the pedestal is fixedly connected with a support; the top of the support is fixedly connected with a Z-axial stress loading mechanism; the lower portion of the support supports an X-axial stress loading mechanism and a Y-axial stress loading mechanism; the X-axial stress loading mechanism is positioned above the Y-axial stress loading mechanism; and the X-axial stress loading mechanism and the Y-axial stress loading mechanism are respectively provided with pressurizing plates driven by a leading screw pair. The structure of the apparatus is brand new, and triaxial pressurization is carried out in a mono-axial oil cylinder and biaxial oil cylinder loading mechanism combination form o realize very accurate control of the loading force, so the mechanical attribute researches of the soft rocks are realized.

Description

technical field [0001] The invention relates to the relevant technical fields of mechanical engineering and geotechnical engineering, in particular to a triaxial test device and method suitable for weak rocks. Background technique [0002] With the development and utilization of underground space, there are more and more excavations of deep-buried ultra-long-span tunnels, large-scale underground powerhouses in hydropower projects, and steep and high rock artificial slopes. The failure mechanism of rock mass under three-dimensional stress state Research has become a hot spot in the field of rock mechanics and engineering. [0003] In the indoor experiment, three axial pressures were applied to the rock specimen by the rock triaxial testing machine, and the mechanical behavior of the rock was observed and recorded. Conventional rock triaxial testing machines are expensive and costly, and the related equipment occupies a large area and requires a large laboratory. At the same ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/02
CPCG01N3/02G01N3/08G01N2203/0019G01N2203/005G01N2203/0075G01N2203/0256
Inventor 张乾青成帅袁永才陈迪杨谭英华刘洪亮刘善伟柳尚
Owner SHANDONG UNIV
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