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Geomechanics model simulating material for simulating weak rock mass and preparation method of geomechanics model simulating material

A technology similar to geomechanics and models, applied in the field of materials and preparation for geomechanical model tests, to achieve the effects of wide sources, stable physical and mechanical properties, and simple preparation process

Inactive Publication Date: 2012-03-28
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it can be seen from the relationship curve between the elastic modulus and the content of the cementitious material given by the experiment that under the condition of adding gypsum binder, the minimum value of the elastic modulus of the prepared specimens is 80MPa. If cement is used, the minimum elastic modulus value of the specimen will be greatly increased, so the material obtained by this technical solution cannot be used for similar simulation of weak rock mass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] First, mix 100 parts of barite powder with a particle size of 200 mesh and 0.5 parts of semi-refined paraffin wax with a melting point of 54 ° C, then dry at 90 ° C for 3 hours to remove water, take it out and cool it to room temperature; add 4 parts of No. 32 hydraulic oil Add to the dried barite powder and semi-refined paraffin mixture and mix evenly again, and finally crush the mixed material until the particle size is ≤1mm.

[0033] The material has a compressive strength of 0.11 MPa and a modulus of deformation of 13.2 MPa.

Embodiment 2

[0035] First mix 100 parts of barite powder with a particle size of 200 mesh and 5 parts of semi-refined paraffin wax with a melting point of 54°C, then bake at 90°C for 3 hours to remove water, take it out and cool to room temperature; add 7 parts of No. 32 hydraulic oil Add to the dried barite powder and semi-refined paraffin mixture and mix evenly again, and finally crush the mixed material until the particle size is ≤1mm.

[0036] The material has a compressive strength of 0.08MPa and a modulus of deformation of 15.2MPa.

Embodiment 3

[0038] First mix 100 parts of barite powder with a particle size of 200 mesh and 5 parts of semi-refined paraffin wax with a melting point of 54°C, then bake at 90°C for 3 hours to remove water, take it out and cool to room temperature; add 3 parts of No. 32 hydraulic oil Add to the dried barite powder and semi-refined paraffin mixture and mix evenly again, and finally crush the mixed material until the particle size is ≤1mm.

[0039] The material has a compressive strength of 0.16 MPa and a modulus of deformation of 25.1 MPa.

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PUM

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Abstract

The invention discloses a geomechanics model simulating material for simulating a weak rock mass. The geomechanics model simulating material is composed of the following components in parts by mass: 100 parts of barite powder, 0.5-7 parts of semi-refined paraffin wax and 3-7 parts of No.32 hydraulic engine oil; the geomechanics model simulating material is prepared into a sample test with the volume weight of 26 KN / m<3> and the size of 10cm*10cm*10cm, the transformation modulus tested by the test sample is 13.2-28.3 MPa and the compressive strength tested by the test sample is 0.08-0.19 MPa; the geomechanics model simulating material is prepared into a test sample with the volume weight of 23 KN / m<3> and the size of 10cm*10cm*5cm, the transformation modulus tested by the test sample is 11.2-24.7 MPa and the compressive strength tested by the test sample is 0.07-0.17 MPa. The invention also discloses a preparation method of the geomechanics model simulating material. The compressive strength and the transformation modulus of the rock mass simulating material are lower so that the geomechanics model simulating material can be used as the more ideal geomechanics model simulating material for simulating the weak rock mass; and the geomechanics model simulating material provided by the invention has the advantages of wide source of the raw materials, no toxic side effects, simple preparation process, low energy consumption, high preparation efficiency and low cost.

Description

technical field [0001] The invention belongs to the technical field of materials for geomechanical model tests and their preparation, and in particular relates to a geomechanical model-like material for simulating weak rock masses and a preparation method thereof. Background technique [0002] Due to the development of modern production and construction and science and technology, more and more buildings, such as dams, factory buildings, tunnels, underground power stations, etc., need to be built on rock foundations or rock bodies with complex geological structures. The anti-sliding stability of buildings and the influence of foundation deformation on building structures have become the main contents of geomechanics model test research. [0003] The geomechanics model test is a method of scaled-down research on specific engineering geological problems based on a certain similarity principle. The main purpose of the test is to study the ultimate bearing capacity, failure form...

Claims

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Application Information

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IPC IPC(8): C04B32/00
Inventor 董建华张林陈建康陈建叶胡成秋陈媛李朝国杨宝全杨庚鑫段斌李新
Owner SICHUAN UNIV
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