My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2008-07-14_REVISION - C1981041
DRMS
>
Day Forward
>
Revision
>
Coal
>
C1981041
>
2008-07-14_REVISION - C1981041
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 3:34:40 PM
Creation date
7/14/2008 1:34:29 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981041
IBM Index Class Name
REVISION
Doc Date
7/14/2008
Doc Name
Letter & Application
From
J.E. Stover & Associates Inc
To
DRMS
Type & Sequence
SL4
Email Name
MPB
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
12
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
C14G1205Item7.txt <br />1/25/2006 <br />338 <br />1 <br />2 <br />3 <br />4 <br />5 <br />6 <br />7 <br />8 <br />9 <br />10 <br />11 <br />12 <br />13 <br />14 <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />21 <br />22 <br />23 <br />24 <br />25 <br />equations are not meant to be plotted on here.. So <br />don't think that the end of the arrow is a plot on <br />the chart. <br />Instead what I did is -- what the <br />division did is we took the -- the frequency -- four <br />separate frequencies on the horizontal axis and <br />converted 2.0 g acceleration into a peak particle <br />velocity. At these -- at a very low frequency of <br />one hertz,' 2 g's of acceleration is equal to 123.1 <br />inches per second peak particle velocity. <br />So that flow meter at a one-hertz <br />frequency of vibration could tolerate 123 inches per <br />second peak particle velocity. Obviously the <br />blasting level chart only allows .2 inches per <br />second peak particle velocity at that frequency. So <br />you can see it's several orders of magnitude <br />tolerant of low-frequency vibration above and beyond <br />what the quarry is going to be allowed to do in <br />their blasting program. <br />At four hertz, two g's is equal to <br />30.8 inches per second. At four hertz, the operator <br />will be allowed vibrations of up to .75 inches per <br />second. At 11 hertz, two g's acceleration is equal <br />to 11.2 inches per second peak particle velocity. <br />At that point -- at 11 hertz the operator is allowed <br />338 <br />3215 ained is estimated at 7.5 acres). Of the 7.5 acres, 6 acres would <br />have been drill seeded (apprx 6% of task). Therefore, dollars and hours are at 6% of total task. <br />Note 4: Task 132-The approval of PR3 decreased the acreage required to be seeded (approval of building, <br />asphalt & laydown areas retained is estimated at 7.5 acres). Of the 7.5 acres, 1.5 acres would <br />have been broadcast seeded (apprx 1.5% of task). Therefore, dollars and hours are at 1.5% <br />of total task. <br />Note 5: Task 135-All dollar amounts for this task are shown with location adjustment of .992 <br />2
The URL can be used to link to this page
Your browser does not support the video tag.