Coring Operator

Key Responsibilities:

• Prepare, position, level and set up the coring rig, drill rods, core barrels, bits, pumps and associated accessories at approved test locations.
• Operate the coring equipment to drill to specified locations, depths and diameters in accordance with the approved coring plan and instructions from the Coring Engineer / Site Supervisor.
• Control drilling parameters,including penetration rate, rotation, water circulation and applied pressure,to minimise sample disturbance and maximise core recovery.
• Retrieve, handle and arrange core samples sequentially in labelled core boxes, maintaining correct depth identification and traceability for inspection and testing.
• Assist the Coring Engineer in measuring core recovery, recording drilling depths, ground conditions,obstructions, equipment readings and unusual observations in daily coring records.
• Identify low recovery, voids,weak or inconsistent material and drilling abnormalities; promptly report findings without altering or substituting samples.
• Carry out pre-use inspections,routine cleaning, lubrication, replacement of worn drill bits and basic preventive maintenance; report defects and isolate unsafe equipment.
• Assist in mobilisation and demobilisation of coring equipment and maintain accurate equipment and consumables usage records.

Requirements:

• Practical experience in core drilling / geotechnical coring operations and safe operation of relevant drilling equipment.
• Ability to recognise drilling conditions and adjust operating methods to protect sample quality and equipment.
• At least 3 years of relevant experience in construction industry
• Physically fit and able to work in a fast-paced construction site environment.
• Familiar with Singapore construction industry practices and workplace safety regulations.
• Must be willing to work on day and/or night shift, 8.00am to 8.00pm or 8.00pm to 8.00am
• Willing work in Changi area.