Method for fast grading underground engineering surrounding rock in real time based on parameters while drilling

An underground engineering and parameter technology, applied in data processing applications, complex mathematical operations, instruments, etc., can solve problems such as instability and collapse of surrounding rock, inaccurate classification, and increased costs

Active Publication Date: 2016-09-14
SHANDONG UNIV
View PDF2 Cites 34 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Surrounding rock classification generally requires coring of the rock mass, combined with laboratory tests, which cannot achieve rapid and real-time classification, and the classification efficiency is low, which increases the time cost and economic cost of construction
[0005] (2) Generally, the surrounding rock classification sections are far apart, and the class

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 fast grading underground engineering surrounding rock in real time based on parameters while drilling
  • Method for fast grading underground engineering surrounding rock in real time based on parameters while drilling
  • Method for fast grading underground engineering surrounding rock in real time based on parameters while drilling

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0090] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0091] A method for fast real-time classification of underground engineering surrounding rock based on parameters while drilling, the specific steps are as follows:

[0092] Step 1: Carry out on-site drilling test, measure the parameters while drilling (torque m, rotational speed r, axial pressure n, penetration rate v and drilling specific power w) during the drilling process, and use the core drilling rig to test on the drilling rig The borehole is 3 times the diameter of the borehole and within 1m. Drill the borehole at the same depth as the drilling test, obtain the cores and number them according to the depth, and perform the uniaxial test to obtain the uniaxial compressive strength R of the borehole at different depths. c .

[0093] Step 2: Implement the elastic wave test...

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 present invention discloses a method for fast grading underground engineering surrounding rock in real time based on parameters while drilling. According to the method, a on-site drilling test is implemented; uniaxial compressive strength along the drilling depth direction of a tunnel face and a rock mass integrity index are obtained based on parameters while drilling measured in a drilling process; a relational expression of the parameters while drilling, the uniaxial compressive strength and the rock mass integrity index is built; in actual underground engineering, the obtained parameters while drilling are introduced into the above relational expression; and surrounding rock in front of the tunnel face is graded fast in real time according to a surrounding rock basic quality (BQ) index grading calculation formula. With the method for fast grading the underground engineering surrounding rock in real time based on the parameters while drilling provided by the invention, it only need to utilize a drilling machine in an engineering field to carry out a drilling test on the surrounding rock, and coring and an laboratory testing are not required, and the surrounding rock can be graded fast in real time, and grading efficiency is high; and the grade of the surrounding rock can be determined just based on the drilling parameters, and various kinds of testing modes in a traditional grading method are not required. The method of the invention has the advantages of simplicity and operational easiness.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering investigation, in particular to a method for fast and real-time grading of surrounding rocks of underground engineering based on parameters while drilling. Background technique [0002] With the rapid development of the economy and the continuous progress of human society and the rapid development of basic construction, when constructing tunnels, subways or roadways, it is necessary to determine the support method and excavation method according to the classification of the surrounding rock. No has a huge impact on the construction period and support cost, especially in the context of the increasing number of TBM and shield machine construction, when the construction face cannot be quickly and accurately graded, broken surrounding rocks and bad geological bodies are encountered. , which may expose the TBM or shield machine to the risk of being stuck or even buried. [0003] There...

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
IPC IPC(8): G06Q50/08G06F17/16G06F17/18
Inventor 王琦李术才高松王雷江贝潘锐孙会彬高红科秦乾于恒昌胥洪彬栾英成许英东
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap