Elements and Performance Criteria
- Plan and prepare for installation of de-watering conduit and gas drainage equipment
- Access, interpret and apply compliance documentation relevant to the work activity
- Access, clarify and apply the specific task requirements for the installation and operation of water and gas control equipment
- Identify workplace hazards, assess, maintain control and report associated risks in accordance with required procedures
- Resolve coordination requirements with others at the site prior to commencing and during work activities for the safe effective and efficient execution of the work
- Prepare the de-watering conduit installation plan in consultation with the site gas drainage official and in accordance with appropriate site management plans
- Install de-watering conduit and monitor water drainage
- Insert hollow rods into the hole in accordance with the de-watering conduit installation plan
- Attach non-return valve and anchor onto the de-watering conduit in accordance with the installation plan
- Perforate the conduit at the appropriate locations to allow ingress of water in accordance with the installation plan
- Install the de-watering conduit into hollow rod to the required distance in accordance with the installation plan
- Identify and remedy operational problems
- Remove hollow rods leaving conduit in place
- Connect conduit to de-watering system and commence removing water via the water trap in accordance with mine-site procedures
- Empty water trap as required by mine-site procedures
- Disconnect de-watering equipment from the de-watering conduit when all water has been removed
- Monitor, record and interpret all pressure and flow readings in accordance with mine-site requirements
- Maintain communication with all relevant personnel
- Connect gas drainage equipment and monitor gas drainage
- Select and install appropriate gas drainage equipment in accordance with the site gas management plan
- Select and use appropriate measuring equipment to monitor gas drainage in accordance with the site gas management plan
- Correctly identify and tag gas drainage and monitoring units identifying the number, length and diameter of the hole
- Maintain equipment and housekeeping
- Ensure that the drill rods are inspected for wear and damage and that threads are dressed and greased in accordance with standard procedures or that rods are replace as required
- Monitor all drill equipment and hoses and ancillary equipment and carryout remedial action
- Apply health, safety and environmental controls
- Maintain safe and tidy site for the duration and at the conclusion of the job
- Ensure all drilling equipment is cleaned and maintained