Roof Bolters in Underground Mining
Overview
Roof Bolters in underground mining operate heavy bolting machines to keep mine tunnels stable and safe. They drill precise holes in the rock ceiling, test for the right bolt tension with tools like torque wrenches, and install different types of support bolts across the entire roof. They also check for methane gas, help control airflow with ventilation curtains and tubes, and make quick safety decisions about loose rock that must be removed before anyone can work below it.
Did you know?
This occupation involves significant safety risks and requires strict adherence to MSHA and OSHA regulations due to the hazardous nature of underground mining operations.
At a Glance
$84,760 Avg/yr
Median Wage
Stable
Growth
Equipment Selection
Top Skill
Key Responsibilities
- Drill bolt holes into roofs at specified distances from ribs or adjacent bolts.
- Drill test holes and test bolts for specified tension, using torque wrenches.
- Tighten ends of anchored truss bolts, using turnbuckles.
- Position bolting machines, and insert drill bits into chucks.
- Position safety jacks to support underground mine roofs until bolts can be installed.
- Perform safety checks on equipment before operating.
- Force bolts into holes, using hydraulic mechanisms of self-propelled bolting machines.
- Rotate chucks to turn bolts and open expansion heads against rock formations.
- Perform tests to determine if methane gas is present.
- Perform ventilation tasks, such as hanging ventilation curtains and tubes.
- Install various types of bolts, including truss, glue, and resin bolts, traversing entire ceiling spans.
- Remove drill bits from chucks after drilling holes, and insert bolts into chucks.
- Dust rocks after bolting.
- Pull down loose rock that cannot be supported.
Career Considerations
Safety and Regulatory Compliance
This occupation involves significant safety risks and requires strict adherence to MSHA and OSHA regulations due to the hazardous nature of underground mining operations.
Physical Demands and Work Environment
The job requires excellent physical condition to work in confined underground spaces with heavy equipment and challenging environmental conditions.
Specialized Training Requirements
Workers must complete extensive safety training and certification programs specific to mining operations before being permitted to work underground.