slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
A G H 2010 PowerPoint Presentation
Download Presentation
A G H 2010

Loading in 2 Seconds...

play fullscreen
1 / 29

A G H 2010 - PowerPoint PPT Presentation


  • 98 Views
  • Uploaded on

A G H 2010. Badania Polowe. Teoria , Metodologia i Praktyka. Profesor Zdzis ł aw Bieniawski. “Idea” #1. Badania polowe w Geoinżynierii. Plate jacking tests. Another well-known in situ test. Large Flat Jack (LFJ) test.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'A G H 2010' - dai-townsend


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

A G H 2010

BadaniaPolowe

Teoria,

Metodologia

iPraktyka

Profesor Zdzisław Bieniawski

idea 1
“Idea” #1

Badania polowe

w

Geoinżynierii

another well known in situ test
Another well-known in situ test

Large

Flat

Jack

(LFJ) test

rock mass deformation modulus gpa
Rock mass deformation Modulus (GPa)

EMASS = 10[(RMR - 10)/40]and for RMR > 50: EMASS = 2RMR – 100

Latest correlations (Galera 2008):

EMASS= 147 e[(RMR - 100)/24] - 0.2RMR

Alternatively for RMR < 50: EMASS= 0.09RMR

and for

RMR > 50: EMASS = 0.09 RMR + 1.06 (RMR-50) + 0.015(RMR-50)2

Correlation coefficient: R = 0.89.

slide14

Rock Mass Strength

Kalamaras, 1995

rock mass deformation modulus
Rock mass deformation Modulus

Another correlation by Galera 2008:

EMASS= Eintacte[(RMR - 100)/36]

For full range of RMR

rock mass strength mpa
Rock mass strength (MPa)

sMASS = sc intacte[(RMR - 100)/24]Kalamaras [1995]

As per the last correlation of Galera 2008:

EMASS= E intacte[(RMR - 100)/36]

it follows:

EMsM

Eisc

2/3

concerning rock mass strength
concerning Rock Mass Strength

W a r n i n g !

This expression:

EMsM

Eisc

is preferable to the Hoek – Brown criterion in which:

m/mi= e[(RMR - 100)/28]ands= e[(RMR - 100)/9]

Due to uncertainty of mi values and equating RMR with GSI

2/3

example of needed rock mechanics focus
Example of needed Rock Mechanics focus

Mechanized excavation in Mining and Tunneling

deserves special attention in Rock Mechanics today

Consider the case of TBM tunneling:

determination of rock mass excavability

(TBM rate of advance)

world record
World Record!

The largest

Tunnel Boring Machine

(T B M)

cannot function

without Rock Mechanics!

slide26
Correlation between Rock Mass Excavability index (RME) and Average Rate of Advance (m/day) for Double Shield TBMs
idea 3
“Idea” #3

Maszyny tarczowe

T B M