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Rock Uniaxial Tensile Test Apparatus and Method

A uniaxial tensile and test device technology, applied in the direction of measuring device, using stable tension/pressure test material strength, instrument, etc., can solve the problems of bending, torsion, and alignment, and achieve the effect of avoiding bending moment and torque

Active Publication Date: 2022-05-20
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a rock uniaxial tensile test device and method to solve the centering problem and the bending and torsion problem in the rock tensile test process when the sample is prepared.

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  • Rock Uniaxial Tensile Test Apparatus and Method

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Embodiment Construction

[0031] The following embodiments of the present invention are illustrated by specific specific examples, those skilled in the art may easily understand other advantages and efficacy of the present invention by the contents disclosed in this specification. The present invention may also be implemented or applied by other specific embodiments, the details of the present specification may also be based on different views and applications, without departing from the spirit of the present invention under various modifications or changes. It should be noted that the illustrations provided in the following embodiments illustrate only the basic idea of the present invention in a schematic manner, without conflict, the following embodiments and features in the embodiments may be combined with each other.

[0032]Wherein, the drawings are only used for exemplary illustrations, representing only schematic diagrams, not physical drawings, can not be understood as a limitation of the present i...

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Abstract

The invention belongs to the field of rock strength testing, and relates to a rock uniaxial tensile test device and method. The device includes a bonding centering device and a stretching device; the bonding centering device includes a bracket and a support base, the bracket includes two centering plates arranged perpendicular to each other, and the support base is used to support the bracket The stretching device includes two suspension rings, and the two suspension rings are connected by a pull rope; the side of the two suspension rings away from the pull rope is provided with a connecting screw. The invention can well solve the problem of centering the rock sample with the slider when there are differences in different heights and different directions, and the problem that the two ends of the rock sample are not parallel and the thickness of the adhesive glue is different; the stretching device and method can Ensure that the rock sample is subjected to pure tension, and effectively avoid bending moments and torques at both ends during the stretching process.

Description

Technical field [0001] The present invention belongs to the field of rock strength testing, relates to a rock uniaxial tensile test apparatus and method. Background [0002] In the process of rock slope excavation, foundation pit excavation, and underground cavern excavation, tensile stress will be generated in the rock of some parts (such as slope roof, pit roof, vault). Rock compressive ability is strong, tensile ability is weak, its tensile strength is generally 1 / 4 to 1 / 25 of the compressive strength, the average is 1 / 10, so tensile stress is easy to cause tensile damage of rock, causing geotechnical engineering disasters. In order to ensure the safety of the project, surveyors are required to test the tensile modulus and tensile strength of the rock, and provide accurate tensile mechanical parameters for engineering design and construction. [0003] The most accurate method to test the tensile modulus and tensile strength of the rock is the rock uniaxial tensile test, but th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08G01N3/04
CPCG01N3/08G01N3/04G01N2203/0252G01N2203/0075Y02A10/23
Inventor 许年春郑瑞吴同情杨全虎鲁坚
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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