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A test bench and test method for testing the comprehensive mechanical properties of anchor rods

A technology of comprehensive mechanics and test bench, which is applied in the direction of testing material strength by using one-time impact force, testing material strength by applying stable bending force, testing material strength by applying stable shear force, etc. Can not reflect other problems, to achieve the effect of deepening the research on bolt support mechanism

Active Publication Date: 2016-08-17
CCTEG COAL MINING RES INST
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the indoor single test only reflects the single mechanical index of the bolt and supporting materials, and cannot reflect the actual effect and the most suitable construction technology that the bolt support material can achieve when it is applied to a specific condition, nor can it obtain the bolt work. The mechanical properties of the process when it is subjected to the superposition of multiple external forces

Method used

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  • A test bench and test method for testing the comprehensive mechanical properties of anchor rods
  • A test bench and test method for testing the comprehensive mechanical properties of anchor rods
  • A test bench and test method for testing the comprehensive mechanical properties of anchor rods

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Embodiment Construction

[0066] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0067] In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer" , "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention. In addition, t...

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Abstract

The invention relates to the technical field of mine support, in particular to a test bench and a test method for testing the comprehensive mechanical properties of bolts. The test stand includes a propulsion and stirring test mechanism, an installation preload test mechanism, a bending load test mechanism, an axial load test mechanism, a shear load test mechanism and an impact test mechanism set on the working test platform. Load testing mechanism; through this test bench, the installation and working process of the anchor can be simulated in the laboratory, and single or multiple combined external forces such as torsion, tension, bending, shearing and impact can be applied to the anchor; The loading system applies corresponding loads to the anchor rods, and can carry out independent tests of various loads during the installation and working process of the anchor rods, and can also carry out several arbitrary tasks such as tension, shear and impact caused by installation stress and surrounding rock deformation. The combined loading test of the force can effectively test the comprehensive mechanical properties of the anchor rod under various combinations of external forces.

Description

technical field [0001] The invention relates to the technical field of mine support, in particular to a test bench and a test method for testing the comprehensive mechanical properties of bolts. Background technique [0002] Bolt support has become a safe and efficient main support method for coal mine roadways, and has been widely promoted and applied in coal mine roadways in my country. Bolt support is to anchor the bolt in the coal and rock body, tighten the nut at the end of the rod to apply prestress to the surrounding rock, and restrain the deformation, separation, swelling and slippage of the surrounding rock of the roadway. [0003] After the bolt support construction is completed, the stress on the bolt in the actual working state is very complicated, including the installation force of the support construction and the force on the bolt caused by the deformation and failure of the surrounding rock during the working process. [0004] During the construction of bolt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08G01N3/20G01N3/24G01N3/30
Inventor 康红普杨景贺林健吕华文吴拥政高富强邵培森
Owner CCTEG COAL MINING RES INST
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