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Homogeneous rock model with uniaxial compressive strength of 20-30 MPa, and preparation method

A technology with a uniaxial compressive strength of 20-30mpa, which is applied in the field of simulating the compression of homogeneous rock models, can solve the problem that the bonding surface is large, starch-gypsum or peach gum-gypsum binder cannot be selected, and rings cannot be selected. Oxygen resin type adhesives and other problems, to achieve the same effect of the failure form

Active Publication Date: 2014-06-11
THE THIRD ENG CORPS RES INST OF THE HEADQUARTERS OF GENERAL STAFF PLA
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Problems solved by technology

[0010]The strength of the material selected for this model test is low, and the epoxy resin adhesive cannot be used; Choose starch-gypsum or peach gum-gypsum binder

Method used

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  • Homogeneous rock model with uniaxial compressive strength of 20-30 MPa, and preparation method
  • Homogeneous rock model with uniaxial compressive strength of 20-30 MPa, and preparation method
  • Homogeneous rock model with uniaxial compressive strength of 20-30 MPa, and preparation method

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Embodiment Construction

[0042] The present invention will be described in further detail in conjunction with the accompanying drawings and embodiments.

[0043] Such as figure 1 , 2 , 3, and 4, a homogeneous rock model with a uniaxial compressive strength of 20-30 MPa, including: a homogeneous rock upper layer model body 1, a clamping layer 3, a homogeneous rock lower layer model body 2 and a cavern 4. The homogeneous rock upper layer model body 1 is bonded and connected with the homogeneous rock lower layer model body 2 through the clamping layer 3 to form a homogeneous rock model body, and a cylindrical cavity 4 is arranged in the center of the homogeneous rock model body.

[0044] A method for preparing a homogeneous rock model with a uniaxial compressive strength of 20-30 MPa, using a homogeneous rock upper layer model body and a homogeneous rock lower layer model body to form a homogeneous rock model body through a mold layer, and forming a homogeneous rock model body on the homogeneou...

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Abstract

The invention belongs to the technical field of simulating compression resistance of a homogeneous rock model, and discloses a homogeneous rock model with uniaxial compressive strength of 20-30 MPa, and a preparation method. The homogeneous rock model comprises an upper-layer homogeneous rock model body, a molding layer, a lower-layer homogeneous rock model body and a cavern, wherein the upper-layer homogeneous rock model body and the lower-layer homogeneous rock model body are connected to form a homogeneous rock model body in a binding manner through the molding layer, and the cylindrical cavern is arranged in the center of the homogeneous rock model body. After absorbing free moisture, a molding material is naturally dried in the hardening process, free from roasting, and suitable for large-area binding. Furthermore, the through connection between broken cracks of an upper half model and a lower half model can be guaranteed by the crispy molding material and a model material which have identical physical properties, and the identical breaking shapes of the upper half model and the lower half model can be guaranteed.

Description

[0001] [0002] technical field [0003] The invention belongs to the field of anti-compression technology of simulated homogeneous rock models, in particular to a homogeneous rock model with a uniaxial compressive strength of 20-30 MPa and a preparation method thereof 。 Background technique [0004] During the model test, it is necessary to arrange sensors on the middle layer of the model block. Therefore, when the model body is rammed, the model body needs to be divided into upper and lower layers for ramming. After the sensors are arranged on the upper surface of the lower model body, Then the two half-models are molded together and bonded into a whole by adhesive. In the geomechanical model test, the requirements for the binder are: a certain bond strength, compressive strength and other physical and mechanical parameters are similar to the bonded model material, and the performance is stable at room temperature after curing, and the fracture of the model body is stable...

Claims

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Application Information

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IPC IPC(8): G01N1/28
Inventor 张向阳贺永胜明治清孔福利丁幸波陈安敏庞伟宾范俊奇
Owner THE THIRD ENG CORPS RES INST OF THE HEADQUARTERS OF GENERAL STAFF PLA
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