The Journal of Explosives Engineering - March/April 2013 - 28
Conversion from
Two-Pass Overburden
Removal to Cast Blasting
at Simplot Phosphates
By Cassidy McAllister, Dale S. Preece, and Steven P. Case
Introduction
The Vernal operation of Simplot Phosphates lays 19.3 km (12 miles) north
of Vernal, Utah, in the foothills of the Uintah Mountains, as shown in figure
1. Phosphate ore is mined crushed, washed, finely ground and concentrated.
The ore is then mixed with water to form slurry and then pumped 154 km
(96 miles) through a pressurized pipeline to the manufacturing plant near
Rock Springs, Wyo. Due to the three distinct geologic formations present, the
original mining operation was accomplished in three passes: 1) 21.4 m (70 ft)
high cover bench, 2) 12.2 m (40 ft) low cover bench, and 3) phosphate ore, as
shown in figures 2 and 3. Each mining pass included drill and blast followed
by truck and shovel removal of overburden waste.
28
The Journal of Explosives Engineers
March/April 2013
http://www.isee.org
The Journal of Explosives Engineering - March/April 2013
Table of Contents for the Digital Edition of The Journal of Explosives Engineering - March/April 2013
Call for Papers
From the President
Highlights of the 39th Annual Conference in Fort Worth, Texas
Chapter News
Industry News
Calendar of Events
20th Annual Photo Contest Winners
Explosives, 100 Years Ago, More or Less
Conversion from Two-Pass Overburden Removal to Cast Blasting at Simplot Phosphates
The Journal of Explosives Engineering - March/April 2013 - cover1
The Journal of Explosives Engineering - March/April 2013 - cover2
The Journal of Explosives Engineering - March/April 2013 - Call for Papers
The Journal of Explosives Engineering - March/April 2013 - 2
The Journal of Explosives Engineering - March/April 2013 - 3
The Journal of Explosives Engineering - March/April 2013 - From the President
The Journal of Explosives Engineering - March/April 2013 - 5
The Journal of Explosives Engineering - March/April 2013 - Highlights of the 39th Annual Conference in Fort Worth, Texas
The Journal of Explosives Engineering - March/April 2013 - 7
The Journal of Explosives Engineering - March/April 2013 - 8
The Journal of Explosives Engineering - March/April 2013 - 9
The Journal of Explosives Engineering - March/April 2013 - 10
The Journal of Explosives Engineering - March/April 2013 - 11
The Journal of Explosives Engineering - March/April 2013 - 12
The Journal of Explosives Engineering - March/April 2013 - 13
The Journal of Explosives Engineering - March/April 2013 - Chapter News
The Journal of Explosives Engineering - March/April 2013 - 15
The Journal of Explosives Engineering - March/April 2013 - 16
The Journal of Explosives Engineering - March/April 2013 - 17
The Journal of Explosives Engineering - March/April 2013 - Industry News
The Journal of Explosives Engineering - March/April 2013 - 19
The Journal of Explosives Engineering - March/April 2013 - Calendar of Events
The Journal of Explosives Engineering - March/April 2013 - 21
The Journal of Explosives Engineering - March/April 2013 - 20th Annual Photo Contest Winners
The Journal of Explosives Engineering - March/April 2013 - 23
The Journal of Explosives Engineering - March/April 2013 - Explosives, 100 Years Ago, More or Less
The Journal of Explosives Engineering - March/April 2013 - 25
The Journal of Explosives Engineering - March/April 2013 - 26
The Journal of Explosives Engineering - March/April 2013 - 27
The Journal of Explosives Engineering - March/April 2013 - Conversion from Two-Pass Overburden Removal to Cast Blasting at Simplot Phosphates
The Journal of Explosives Engineering - March/April 2013 - 29
The Journal of Explosives Engineering - March/April 2013 - 30
The Journal of Explosives Engineering - March/April 2013 - 31
The Journal of Explosives Engineering - March/April 2013 - 32
The Journal of Explosives Engineering - March/April 2013 - 33
The Journal of Explosives Engineering - March/April 2013 - 34
The Journal of Explosives Engineering - March/April 2013 - 35
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The Journal of Explosives Engineering - March/April 2013 - 37
The Journal of Explosives Engineering - March/April 2013 - 38
The Journal of Explosives Engineering - March/April 2013 - 39
The Journal of Explosives Engineering - March/April 2013 - 40
The Journal of Explosives Engineering - March/April 2013 - cover3
The Journal of Explosives Engineering - March/April 2013 - cover4
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