Supercharge Your Innovation With Domain-Expert AI Agents!

Preparation method of compressive pre-stress artificial rock core

A technology of artificial core and pre-stress, which is applied in the preparation of test samples, sampling, measuring devices, etc., can solve the problems of not having to manufacture cores of different sizes, stress storage instructions, etc., and achieve simple operation, simple materials, and low cost Effect

Inactive Publication Date: 2016-09-28
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
View PDF10 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is to solve the problem that the existing core sample preparation mold does not have the ability to manufacture cores of different sizes and different structural planes, and does not explain the stress storage in the sample preparation process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of compressive pre-stress artificial rock core
  • Preparation method of compressive pre-stress artificial rock core
  • Preparation method of compressive pre-stress artificial rock core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing a precompressed artificial rock core, comprising the steps of:

[0032] (1) Mix and stir the epoxy resin A component and the curing agent B component;

[0033] (2) After adding quartz sand to the mixture in step (1), stir evenly;

[0034] (3) Layer-cast the mixture in step (2) into an internal stress cylindrical mold, coat a layer of release agent between the mold and the mixture, apply pressure to the mixture in (2) through the screw handle, and wait for the cylindrical sample After curing and molding, the internal stress core can be obtained.

[0035] In this embodiment, the mass ratio of the epoxy resin component A to the curing agent B component is 3:1.

[0036] In this embodiment, the mass ratio of the mixture of the epoxy resin component A and the curing agent B component to the quartz sand is 1:1.

[0037] In this embodiment, the particle size of the quartz sand is 18 mesh.

[0038] In this embodiment, the model of the epoxy resin is HZ...

Embodiment 2

[0047] A method for preparing a precompressed artificial rock core, comprising the steps of:

[0048] (1) Mix and stir the epoxy resin A component and the curing agent B component;

[0049] (2) After adding quartz sand to the mixture in step (1), stir evenly;

[0050] (3) Layer-cast the mixture in step (2) into an internal stress cylindrical mold, coat a layer of release agent between the mold and the mixture, apply pressure to the mixture in (2) through the screw handle, and wait for the cylindrical sample After curing and molding, the internal stress core can be obtained.

[0051] In this embodiment, the mass ratio of the epoxy resin component A to the curing agent B component is 3:1.

[0052] In this embodiment, the mass ratio of the mixture of the epoxy resin component A and the curing agent B component to the quartz sand is 1:1.

[0053] In this embodiment, the particle size of the quartz sand is 80 mesh.

[0054] In this embodiment, the model of the epoxy resin is HZ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a compressive pre-stress artificial rock core, wherein the method comprises the following steps: (1) mixing and stirring an epoxy resin A component and a curing agent B component; (2), adding quartz sand into the mixture in the step (1), and stirring evenly; and (3) layering and casting the mixture of the step (2) into an internal stress cylindrical mold, coating a layer of a mold release agent between the mold and the mixture, applying pressure to the mixture of the step (2) through a spiral handle, and thus obtaining the internal stress rock core after curing and molding a cylindrical sample.

Description

technical field [0001] The invention belongs to the technical field of artificial rock core preparation, in particular to a method for preparing a precompressed artificial rock core. Background technique [0002] Rock material is a kind of heterogeneous medium. The microscopic particles that make up rock have differences in mechanical properties and thermal conductivity. Under the action of pressure and temperature changes, local plastic deformation will occur, causing part of the stress to be stored in it. In the process of rock mechanics and engineering, mining engineering, and excavation engineering, it is often found that, for example, the release of rockburst strain energy, deformation caused by stress relaxation in soft rock roadways, abnormal uplift at the bottom of foundation pit excavation, and rock blocks during landslide creep These phenomena are related to the accumulation and release of the internal stress of the rock, so the research on the generation and relea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
CPCG01N1/286G01N2001/364
Inventor 陈卫昌王思敬
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com