My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
1989-03-17_REPORT - M1977378
DRMS
>
Day Forward
>
Report
>
Minerals
>
M1977378
>
1989-03-17_REPORT - M1977378
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
1/8/2021 3:58:11 PM
Creation date
9/10/2012 6:52:12 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1977378
IBM Index Class Name
REPORT
Doc Date
3/17/1989
Doc Name
Clarifications
From
San Juan County Mining Venture
To
MLRD
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
46
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
POWDER FACTOR <br /> Gravity loaded Blasting <br /> ANFO gelatine <br /> I kg Lb Lb �g lb <br /> m3 tonn ,yd3 1.for m3 yd3 <br /> o.8 <br /> 0.3- <br /> 1.3 0.6 0.6 1.0- <br /> 0.7 1.2 <br /> 0.9 1.4. Tan(f + i) <br /> 1.1 PfANFO 3 /- (kg/m3) <br /> 0.5 0.5 ✓fractures/metre <br /> 0.6 t.o 0.8- <br /> where i is the roughness angle (see page 85) <br /> 0.9 0.7 <br /> 0. 0.2 0.4- 0.4 <br /> 0.8 <br /> 0.6 <br /> 7 Friction angle <br /> 0.4- <br /> 0.3 0.3 0. 450 <br /> .6- <br /> 400 <br /> 0.3 •5 0.4- <br /> 350 <br /> 0.1 o.4 0.2 0.2 300 <br /> 0.3 <br /> 0.2 •3 �50 <br /> 0.2 Fractures/ metre <br /> 0.1 0.1 10 20 30 40 50 60 70 80 90 <br /> O.Ij 1 1 1 1 a a I i I <br /> 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 <br /> Fractures/foot <br /> FRACTURE FREQUENCY <br /> Figure 1.0 Empirical Variation of Powder Factor(From Rock Slope Engineering, by E.Hoek and J. W. Bray) <br />
The URL can be used to link to this page
Your browser does not support the video tag.