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Hollow cylindrical rock torsional shear apparatus for improving torque application accuracy

A technology of hollow cylinder and torsional shear instrument, applied in the direction of testing material strength by applying stable torsion force, testing material strength by applying stable shear force, instruments, etc., can solve problems such as structural torque loss and ensure reliability Effect

Active Publication Date: 2017-05-10
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The present invention provides a rock hollow cylindrical torsional shear instrument that improves the accuracy of torque application, which solves the technical problems of structural torque loss in the process of torque application in the prior art, which leads to test reliability and accuracy.

Method used

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  • Hollow cylindrical rock torsional shear apparatus for improving torque application accuracy
  • Hollow cylindrical rock torsional shear apparatus for improving torque application accuracy

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Embodiment Construction

[0039] The embodiment of the present application solves the technical problem of the structural loss of torque in the process of torque application in the prior art by providing a rock hollow cylinder torsional shear instrument that improves the accuracy of torque application, which leads to the technical problem of test reliability and accuracy; and achieves the improvement of test reliability. and precision technical effects.

[0040] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application. , rather than limiting the technical solutions of the present application, the embodiments of the present application and the technical features in...

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Abstract

The invention belongs to the technical field of rock mechanical test equipment, and discloses a hollow cylindrical rock torsional shear apparatus for improving torque application accuracy. The apparatus comprises a framework, a lifting device, a base, a confining pressure barrel, an upper seat, a transmission shaft group, a transmission shaft bracket, a torque applying structure, a torque sensor, a coupling and a controller. The invention provides a torsional shear apparatus capable of ensuring the torque application accuracy and reliability.

Description

technical field [0001] The invention relates to the technical field of rock mechanics test equipment, in particular to a rock hollow cylinder torsional shear instrument for improving torque application accuracy. Background technique [0002] In the fields of transportation, water conservancy and hydropower, mining and other basic engineering construction and resource / energy development fields, it is necessary to build a large number of deep buried long tunnels (tunnels, roadways). TBM (full-section rock tunnel boring machine) has unique advantages such as safety, efficiency and economy. It has become the best choice and inevitable development direction for the construction of deep buried long tunnels (tunnels, roadways). The TBM excavation process will cause continuous adjustment of the surrounding rock stress, and its outstanding feature is that the principal stress value changes greatly while the stress axis rotates at a large angle. Under the condition of deep burial and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/22G01N3/24G01N3/02
CPCG01N3/02G01N3/22G01N3/24G01N2203/0026G01N2203/0048G01N2203/0266
Inventor 周辉黄磊卢景景胡大伟姜玥胡明明高阳刘海涛
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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