True triaxial rheological test system

A rheological test, true triaxial technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc. To achieve the effect of improving the technical level

Inactive Publication Date: 2013-04-10
付志亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although they can simulate the three-dimensional stress state of rock and soil and conduct complex stress path tests, they have the following disadvantages: it is difficult to obtain the rheological curve of the whole process, that is, the accelerated rheological stage curve cannot be obtained
In addition, there is no published patent about the true triaxial rheological test device

Method used

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  • True triaxial rheological test system
  • True triaxial rheological test system
  • True triaxial rheological test system

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Embodiment Construction

[0018] The present invention is described in detail as follows in conjunction with accompanying drawing:

[0019] Loading process: first put the test piece (28) into the semi-open triaxial pressure chamber, start the reciprocating pump (30) to transfer the liquid in the liquid storage tank (7) to the front of the minimum principal stress through the liquid injection pipe (6) Loading weight (1), intermediate principal stress loading weight (4), maximum principal stress left loading weight (11), maximum principal stress right loading weight (17) inject liquid; through three-position four-way solenoid valve (23 ) to control the liquid flow to apply different gravitational loading, and each loading rigid block can be independently controlled; finally, the rheological test is carried out through the expansion force loading of the primary loading lever (5) and the secondary loading lever (8).

[0020] Figure 4 Among them, the control system of the true triaxial rheological test sy...

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Abstract

The invention relates to a true triaxial rheological test system. The true triaxial rheological test system provided by the invention is provided with an automatic control system which has three directions of loading modes including axial gravity loading and lateral dual-axis gravity loading, adopts loading blocks for applying lever gravity loading axially and laterally, and applies three-direction constant main stress individually. Three-direction individual loading and mutual noninterference are realized truly. A full-process rheological curve is obtained by adopting liquid injection weight accurate loading, a feedback detecting element as well as a four-position six-way electromagnetic valve. The true triaxial rheological test system provided by the invention has the characteristics of true stress state, accurate strain testing and easiness in test process control.

Description

technical field [0001] The invention relates to a true triaxial rheological test system, which is especially suitable for rheological properties test of rock and soil materials. Background technique [0002] The fundamental disadvantage of the conventional triaxial rheometer is that it can only apply axial stress and the same lateral stress (confining pressure) to the cylindrical geotechnical material, so it can only reflect the strength and The deformation law does not represent the general stress state that rock and soil materials are actually subjected to. The true triaxial instrument is a test instrument that truly simulates the principal stress state and tests the mechanical properties of rock and soil under any stress path. In order to truly describe the three-dimensional stress state of rock and soil materials, a variety of true triaxial instruments have been developed at home and abroad. Although they can simulate the three-dimensional stress state of rock and soil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/14G01N3/02
Inventor 付志亮李术才张庆松高召宁王汉鹏刘元雪
Owner 付志亮
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