SUMMARY:
International Oil 7 Gas EPC has an opportunity for a experienced TBM operator on its projects located in Thailand
POSITION INFO:
TBM operators must be able to maintain the line and grade of the tunnel while steering the TBM, as well as fully operate the Earth Pressure Balance Machine (EPBM).
Qualified candidates willbe required:
- to execute the erection of segmental tunnel lining, grouting of annular gap behind the segmental tunnel lining, mucking operations within the TBM and the extension of supply pipes and rail track.
Essential Duties and Responsibilities:
· Maintain line and grade of the tunnel, possessing extensive knowledge of TBM tunneling guidance system and ring prediction program
· Responsible for TBM operations in accordance with the manufactures guidelines. This covers all machine parameters to be used along the tunnel including:
o Maintenance of face pressure within the bulkhead and screw conveyor
o Ensure accuracy of specified thrust load for each ram or group of rams to avoid cracking of the segmental lining
o Monitoring grease consumption for the bearing sealing system to seal against face pressure, hydrostatic and annular grout pressure
· Responsible for monitoring the excavated material throughout the mining cycle to minimize the risk of over breaks
· Ensure building tolerances are in compliance with applicable regulations specified in the contract during the erection of the segmental tunnel lining (including plane, lips andsteps) The segments shall be carefully handled during erection and bolting without damaging the TBM gaskets.
· Implementation of the annular grouting procedure behind the secondary lining. This includes verifying and confirming the pump ability of the primary grout before the starting of the mining and the volume and pressure of grout injection through the tail skin
· Responsible for the use of Soil conditioning agents during the mining operations in approved mixes to handle the geotechnical and groundwater conditions expected along the tunnel alignment
· Supervision of Mucking operations and spoil handlings within the TBM, as well as works related to extension of supply pipes and rails
· Assist Tunnel Engineers/Superintendents regarding tunneling shift reports and daily records
· Assist mechanical team with assembly and disassembly of the TBM’s before the initial drive as well as cutting head and cutting tool inspection
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