- JANUARY HYBRID MEETING
Join us for our next SME Tucson Hybrid Meeting! For those that want to join us in person, please go ahead and make your reservation. Hexagon has graciously allowed us to host this event at their office and is our venue/food/drink sponsor.
Make sure to select your meal when making your reservation. Reservation deadline is Friday, January 12th, at noon. If you choose to join virtually, you will receive a link prior to the event.
Program:
This presentation presents final wall Slope Optimization practices at Grasberg Mine which resulted in a 14% and 17% increase to bench face angle (BFA) and inter-ramp slope angle (ISA), respectively, and subsequent increase in metal recovery totaling over 40% additional copper, and 42% additional gold.
Located in remote jungle province of West Papua Indonesia, at an elevation of 4,200 meters, sits the Grasberg open pit mine. Grasberg mine implemented high quality Slope Optimization program for final pushback, with the goal to safely increase recoverable metals through steeper slopes, while utilizing existing infrastructure and equipment. Most emphasized programs are blast QA/QC improvement, as built slope measurement (slope audit program), and short-range planning modification.
Grasberg was originally divided into two primary areas for slope steepening, with ISA of 51° and 52°, all areas in pit with 70° BFA. Through continuous developments, collaboration and achievement, Grasberg final pit was modified for BFA increase to 80° for all areas, and an ISA increase to 56°, and 60°, in respective areas.
Meeting sponsor:
AVAILABLE!
Venue and beverage sponsor:
Speaker: Allen Kinney, Freeport-McMoRan
Allen Kinney received a B.S. in Civil Engineering from Washington State University, and went on to receive an M.S. in Mineral Engineering, specializing in Explosive Engineering from New Mexico Tech. He began his career with Freeport in 2010 at Chino mine in New Mexico. Allen moved to P.T. Freeport Indonesia in 2013 where he worked for nearly ten years in various roles, primarily in support of both surface and underground drilling and blasting programs. Allen is currently the Mine Operations Superintendent at Freeport’s Sierrita Mine.
Agenda:
- 6:00pm - 7:00pm Social Hour
- 7:00pm - 7:45pm Dinner
- 7:45pm - 8:00pm Announcements (START OF VIRTUAL MEETING)
- 8:00pm - 8:30pm Program
- 8:30pm - 8:45pm Q&A
Location: HEXAGON, 40 E Congress St #300, Tucson, AZ 85701. CLICK FOR MAP.
Costs:
- $45 for SME Tucson members
- $55 for non-members
- Free for UA SME Student Chapter members
- Free for virtual attendees
Payable at the door by cash, credit card, or check payable to SME Tucson.
Cancellations and No Shows:
Please call or email by the registration deadline to cancel. If you do not cancel your reservation by the deadline, SME is still required to pay for your dinner and you will in turn be billed. Thank you.
Virtual Meeting Information will be sent to registrants.
Thank you to all our 2023 Scholarship Fundraiser Sponsors:
| Mother Lode |
Hexagon Mining, AMES Construction, ASARCO |
| Bonanza |
Freeport-McMoRan Sierrita Operations, Stantec, Epiroc |
| Big Nugget |
WSP, Granite, M3 Engineering |
| Pay Dirt |
Ausenco, Florence Copper, Call & Nicholas, McCraren Compliance, GroundProbe, Independent Geomechanics, Patrick Gorman,
Montgomery & Associates, Piteau Associates, Ruen Drillling, Tetra Tech |
| Prospect |
Darling Geomatics |
| Supporters |
SRK Consulting, Cori Hoag, Mayes Consulting |