My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
GENERAL48094
DRMS
>
Back File Migration
>
General Documents
>
GENERAL48094
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 8:23:56 PM
Creation date
11/23/2007 4:05:42 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981013
IBM Index Class Name
General Documents
Doc Date
5/6/2003
Doc Name
Vent Shaft/MSHA Plans
From
Peak Project Management
To
DMG
Permit Index Doc Type
General Correspondence
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.
/
16
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
Upon completion of the raise boring, a 8 foot diameter <br />steel lining will be placed in the open hole with cranes <br />and a lowering device. The casing will be slotted to <br />prevent water accumulation and have a wall thickness of <br />.25 inches. When the casing is in place, the annulus <br />will be grouted at the bottom collar and filled with pea <br />gravel to within 10 feet of the surface. A permanent <br />concrete collar aro~ind the steel lining will complete the <br />shaft construction. <br />The air sweeps (as required) at the shaft bottom will be <br />developed by continuous miner during the shaft bottcm <br />development and the excavation for the raise head <br />assembly. <br />77.1900 (A)(4) Elevations and Dimensions <br />Diameter (excavation) - 9 feet 3 inches <br />Diameter (lined) - 8 feet <br />Collar Elevation - 7354 feet msl <br />Depth to Coalbed - 605 feet <br />77.1900 (A)(5) Location and Elevation of Coalbed <br />Coalbed - Maxwell <br />Elevation (top of seam) - 674$ feet msl <br />Thickness - 6 feet <br />77.1900 (A)(6) General Characteristics of Strata <br />Strata - The shaft will be developed through strata <br />composed of interbedded sandstones, mudstones, shales, <br />and coal beds (see attached lithology log). <br />77.1900 (A)(7) Tyne of Equipment to be L'sed <br />The drilling, reaming, casing and collar constructior. <br />will be performed by Dynatec Mining Contractors Inc. <br />The drilling rig to be used is a Ingersoll-Rand RnM-7SP. <br />The steel liner will be set in place by contract cranes. <br />The grousing and backfilling will be performed from the <br />surface.' <br />'} <br />'. Revised 1/26/91 <br />. Revised 1/20/91 <br />NTR-1 Exhaust Shaft <br />6 AF~'R~UfD CIS ~ N .~~q (.J .~ `~ I <br />
The URL can be used to link to this page
Your browser does not support the video tag.