Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rock structural surface shearing method

一种结构面、岩石的技术，应用在岩石结构面剪切装置领域，能够解决未涉及到岩石剪切试验机研制等问题

Active Publication Date: 2016-06-22
HUNAN UNIV OF SCI & TECH
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, many current experiments have not involved the development of rock shear testing machines under different temperature conditions.

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
  • Rock structural surface shearing method
  • Rock structural surface shearing method
  • Rock structural surface shearing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The shearing method of the rock structure plane of the present invention comprises the following steps:

[0039] (1) Fabrication and heating of test pieces: Maokou limestone hanging wall rock blocks and footwall rock blocks including rock structural planes were selected at the mine roadway engineering site. The rock blocks on the Maokou limestone rock structure surface and the footwall rock blocks are all cut into: length * width * height = 20cm * 10cm * 15cm test piece, on the rock structure face of Maokou limestone rock block 33, Four heating holes 20 are respectively processed on the rock block 32 of the footwall, and the depth is 2 / 3 of the thickness of the rock block sample, and then high-quality high-temperature resistant silicone oil 42 is injected into it, and the rubber plug 5 with a heating rod 25 is used to seal and heat the hole. Hole 20, glue and seal the rubber plug 5 and heating hole 20 with high temperature resistant glue, and tightly block the heating h...

Embodiment 2

[0045] This example adopts basically the same implementation method as Example 1, the difference is: step (1) heat the temperature of the high-quality heat-resistant silicone oil on the rock structure surface of Maokou limestone and in the heating hole of the footwall rock block to 100 °C, after heating for 5 hours, the average temperature value of the upper and lower rock blocks is 94.5 °C obtained by temperature sensors at various places on the upper wall rock block and footwall rock block of the rock structure.

[0046] The peak shear strength of the structural plane of Maokou limestone obtained under the above treatment conditions is 5.71±1.10MPa, and the peak dilation displacement is 1.03±0.27mm

Embodiment 3

[0048] This example adopts the same implementation method as Example 1, the difference is: step (1) heat the temperature of the high-quality heat-resistant silicone oil on the rock structure surface of Maokou limestone and in the heating hole of the footwall rock block to 150 °C, after heating for 5 hours, the average temperature value of the upper and lower rock blocks is 138.3°C obtained by temperature sensors at various places on the upper wall rock block and footwall rock block of the rock structure.

[0049] The peak shear strength of the structural plane of Maokou limestone obtained by the above treatment conditions is 3.89±0.95MPa, and the peak dilation displacement is 1.36±0.35mm.

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

No PUM Login to View More

Abstract

The invention discloses a rock structural surface shearing method. The rock structural surface shearing method comprises the following steps: manufacturing a test piece and heating, applying normal pressure, applying a shearing force, and acquiring and analyzing data. A device corresponding to the rock structural surface shearing method comprises a test piece system, a pressing plate system, a loading system, a data acquisition system, a roller set system and a heating system. The test piece system comprises upper and lower discs of rock blocks of a rock structure with a heating hole; the loading system is divided into normal pressure loading, left shearing force loading and right shearing force loading; the pressing plate system is composed of two 7-shaped loading plates; the roller set system comprises four groups of pressing roller sets, and is used for connecting the loading system and the pressing plate system; the heating system is used for controlling the temperature of high-quality heat-resisting silicone oil in the heating hole by utilizing a heating rod, so that the upper and lower discs of rock blocks of a rock structural surface are heated; and the data acquisition system is used for carrying out data acquisition on pressure, displacement and temperature. According to the rock structural surface shearing method, bidirectional shearing of the test piece of the rock structural surface can be realized, and researches of shearing properties of the rock structural surface under different temperatures can be realized.

Description

technical field [0001] The invention relates to shearing of rock structural planes, in particular to a rock structural plane shearing device and method. Background technique [0002] Rock structural plane is a common medium in slope engineering, dam foundation engineering, and mining engineering. A large number of discontinuous surfaces inside the rock mass affect and determine the physical and mechanical properties of the rock mass. Shear tests are used to understand the mechanics and deformation of rock structural planes It provides an important basis for the design and construction of various rock mass engineering. [0003] The shear strength test is divided into a non-restrictive strength shear test and a restrictive shear strength test. In the unrestricted strength shear test, only shear stress exists on the shear plane, and no normal stress exists; in the restrictive strength shear test, there exists normal stress in addition to the shear stress on the shear plane. T...

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): G01N3/24
CPCG01N3/24G01N2203/005G01N2203/0222
Inventor 赵延林万文王卫军
Owner HUNAN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com