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

Method for judging grade of tunnel surrounding rock in advance through rock breaking products

A technology of surrounding rock grades and products, applied in the field of grades, can solve the problems of limited application scope, many supporting equipment, and long time occupation of the face, and achieves the dynamic change optimization of surrounding rock, accelerated construction progress, and optimization of support facilities. Effect

Inactive Publication Date: 2019-01-15
CHENGDU UNIVERSITY OF TECHNOLOGY
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual construction, due to the slow speed of coring and drilling, the equipment is not suitable for deployment, there are many supporting equipment, and the hole surface takes a long time, which limits its scope of application, and even is useless in some projects.

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
  • Method for judging grade of tunnel surrounding rock in advance through rock breaking products
  • Method for judging grade of tunnel surrounding rock in advance through rock breaking products
  • Method for judging grade of tunnel surrounding rock in advance through rock breaking products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0025] Such as figure 1 Shown, the embodiment of the present invention comprises the following steps:

[0026] S01, drilling the surrounding rock of the tunnel by means of drilling without core drilling;

[0027] S02, collect the WOB characteristics during the drilling process, and determine the saturated uniaxial compressive strength of the rock according to the WOB value and rock fracture products during the drilling process, so as to determine the hard strength of the rock mass. Collect the opening of the drilled hole and collect the filling status of the drilled drilled hole;

[0028] S03, collecting rock fragmentation products after drilling;

[0029] S04, group and catalog the collected rock fragmentation p...

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 relates to the technical field of engineering construction, in particular relates to a method for judging the grade of a tunnel surrounding rock in advance through rock breaking products. The method comprises the following steps of 1, drilling the tunnel surrounding rock in a non-core-drilling mode; 2, collecting a bit pressure characteristic in the drilling process; 3, collecting the rock breaking products after drilling; 4, grouping and cataloging the collected rock breaking products according to different collection positions and the sizes of the rock breaking products, and extracting geometric characteristics, mineral components and grading of the rock breaking products through an image recognition technology; and 5, judging the grade of the surrounding rock according tothe geometric characteristics, the mineral components and the grading of the rock breaking products. According to the method, the grade of the tunnel surrounding rock is judged in advance according tothe rock breaking products; a reliable judgment basis is provided for engineers; the function of judging the grade of the surrounding rock in the non-core-drilling mode can be realized; the construction progress of underground engineering is accelerated; and the dynamic change of the surrounding rock and the optimization of supporting facilities are achieved.

Description

technical field [0001] The invention relates to the technical field of engineering construction, in particular to a method for judging the grade of tunnel surrounding rock in advance through rock crushing products. Background technique [0002] The grade of the surrounding rock of the tunnel is the key basis for the design of the lining. At present, the grade of the surrounding rock of the tunnel is mainly determined through a small number of vertical boreholes, engineering geophysical prospecting methods and on-site records after excavation. In the actual construction process, it is extremely important to determine the grade of the surrounding rock before excavation and exposure. The common coring technology takes up the working time of the face, the number of on-site implementation is extremely limited, and most of them are point-shaped exposures, and the engineering geophysical prospecting methods are significantly affected by construction interference. , There are often ...

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): G01N33/24
CPCG01N33/24
Inventor 霍宇翔巨能攀马永红
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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