Electrical method monitoring device suitable for true triaxial loading and use method thereof

A monitoring device, true triaxial technology, applied in the direction of measuring devices, using stable tension/pressure testing material strength, instruments, etc., can solve problems such as difficult and accurate data, on-site environment simulation deviation, inconvenient installation, etc., to avoid being affected Compression deformation damage, easy safe displacement, and the effect of improving flatness
CN112985982AActive Publication Date: 2021-06-18CHINA UNIV OF MINING & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF MINING & TECH
Publication Date
2021-06-18

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Abstract

The invention discloses an electrical method monitoring device suitable for true triaxial loading, which comprises an electrode mounting plate fixed on a loading plate, and a plurality of threaded holes which are used for mounting electrode bodies and are uniformly distributed in a rectangular array are formed in the electrode mounting plate; a plurality of wire grooves used for connecting end points of the threaded holes in the same column or the same row in series are formed in the side face, attached to the loading plate, of the electrode mounting plate, and the two ends of each wire groove extend to the edge of the electrode mounting plate. By adopting the device and the method, the electrical change characteristics of the rock sample in the whole loading damage process can be monitored in an omnibearing and three-dimensional manner.
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Description

technical field

[0001] The invention relates to the field of indoor mechanics and electrical characteristics experiments of coal and rock bodies, in particular to an electrical monitoring device suitable for true triaxial loading and a method for using the same. Background technique

[0002] At present, underground geotechnical engineering has been involved in underground mining, natural gas and oil and other energy sources, and it also affects the construction of tunnels and underground caverns. Deep rock and soil bear forces in three orthogonal directions. Under axial loading conditions, the ground stress can be truly simulated, which are the maximum principal stress, medium principal stress and small principal stress. Under any mining conditions, the stress state of the underground rock and soil will be disturbed, the internal structure of the rock will change, and its electrical characteristics will also change. For example, the development of cracks will lead to an incr...

Claims

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