Engineering
Resolution Copper Mining - Resolution Copper Project
Since 2006 Cementation has been working on the Resolution Project in Arizona, which is operated by Resolution Copper Mining LLC and owned by BHP Billiton and the Rio Tinto Group. The project includes the rehabilitation and additional development of the existing Neversweat Tunnel that accesses the shafts approximately 1000 ft below surface. It also involves the sinking of a 28 ft diameter, concrete-lined shaft to a depth of 7000 ft below surface. This shaft is now well advanced and nearing completion. At depth, rock temperatures are in the order of 175 degrees F. The permanent liner for the main shaft is a traditional concrete lining; however, the temporary lining during sinking is by shotcrete. Shotcreting of the shaft walls has been incorporated into the sinking cycle and has provided an excellent means of ground control during shaft sinking. The existing No. 9 Shaft is being rehabilitated and dewatered and will be extended as part of the mine’s permanent ventilation system.
The Long Now Foundation - Clock One Project
The Clock One project was a unique excavation involving both raise boring and drill and blast work to create underground chambers for the housing of the Millennium Clock. Located in Texas, the project had a number of nonconventional design criteria in terms of boring accuracy and excavation support.
Xstrata Copper - Kidd Mine D No. 4 Shaft
The Kidd Mine D No. 4 Shaft was a design-build sinking project for Xstrata Copper at their Kidd Mine in Timmins, Ontario. The project commenced in 2001 and was completed in 2006. It is one of the most complex shaft sinking projects ever undertaken in Canada.
The scope of the contract required Cementation to sink a 7.62 m internal diameter concrete lined winze to a total shaft depth of 1651 m. Once completed, the shaft bottom was 3014 m below surface making Kidd Mine the deepest operating metalliferous mine in the world.
Many logistic challenges were handled on this project; including, concurrent excavation of the shaft below while excavating and constructing the permanent head works above, ventilation, working in an operating mine, materials movement and concrete delivery.
Source: http://cementation.ca/site/projects.php
- Carry out all directives of management
- Read and sign all log books daily
- Ensure all employees have the knowledge to work safely and efficiently by giving all employees job specific instructions on a daily basis and monitor progress
- Concrete Installation
- Steel Installation
- Drilling and Blasting
- Bolt, screen and install manways
- Install platform
- Provide ground support
- Construction layouts for anchor bolt locations, grid lines, formwork, concrete piers, and footings in an underground environment
- Surveying and checking for column plumbness with a total station during structural steel erection in an underground environment
- Layout hanger locations
Cementation is currently engaged in the grouting program as well as long hole drilling and development of ore headings at the Hope Bay Project, which is located in the Kitikmeot region of Nunavut.
In coordination with other crew members the Millwright is responsible for performing mechanical repairs and routine planned maintenance on a variety of fixed plan installations.
The Lead Electrician will be expected to work on the tools to complete the installation and commissioning of conveyor belts, including the services and utilities required for the conveyors, including, but not limited to services (power, fire suppression, controls, etc) required for the conveyors.
In coordination with other crew members the Hoist Operator follows job procedures and regulations to perform the assigned tasks.
The Heavy Duty Equipment Mechanical Leader is expected to perform preventative maintenance and repairs as required to surface and underground, mobile and stationary equipment.
The Heavy Duty Equipment Mechanic is expected to perform preventative maintenance and repairs as required to surface and underground, mobile and stationary equipment.