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Uniaxial compressive strength 20-30mpa homogeneous rock model 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 problems of large bonding surface, lack of baking and drying conditions, and low material strength, and achieve the same failure form Effect

Active Publication Date: 2016-08-03
THE THIRD ENG CORPS RES INST OF THE HEADQUARTERS OF GENERAL STAFF PLA
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Problems solved by technology

[0009] The strength of the material selected in this model test is low, and the epoxy resin adhesive cannot be used; and the bonding surface is large, and it does not have the conditions for baking and drying, and the starch-gypsum or peach gum-gypsum adhesive cannot be selected.

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  • Uniaxial compressive strength 20-30mpa homogeneous rock model and preparation method
  • Uniaxial compressive strength 20-30mpa homogeneous rock model and preparation method
  • Uniaxial compressive strength 20-30mpa homogeneous rock model and preparation method

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Embodiment Construction

[0040] The present invention will be described in further detail in conjunction with the accompanying drawings and embodiments.

[0041] 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.

[0042] 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 homogeneous rock S...

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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

technical field [0001] The invention belongs to the technical field of anti-compression technology of a simulated homogeneous rock model, and in particular relates to a homogeneous rock model with a uniaxial compressive strength of 20-30 MPa and a preparation method thereof. Background technique [0002] 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 sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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