Pit Boss / Tunnel Foreman

Job Description

Job IntroductionPit Boss for Area centralResponsible for all safety, quality, logistical and technical matters regarding the tunnel drive of EPB TBM.Will supervise all operations within the EPB TBM that are necessary to excavate and support the underground tunnel according to approved method and procedures. Must have full comprehension of required activities within the EPB to ensure they can effectivelyreact to prevailing geological conditions encountered during the tunnel drives.Flexible working: We welcome you to ask about the flexibility you need. This might be part-time, remote working, or compressed hours for example. Anyone who applies for a role can ask about flexibility at interview. In return, we will explore whatis possible for the role.Role Responsibility

• Responsible to supervise TBM Operators, that are in charge to maintain line and grade of the tunnel according to tunnelling guidance system.
• Responsible to supervise EPB Operators that operate the EPBs in accordance to manufactures guidelines and approved methods including: maintenance of face pressure within the bulkhead and screw conveyor according to pre-defined parameters / monitoring ofspecified thrust load to each ram or group of rams to avoid cracking of the segmental lining / monitoring of tail skin grease injection between the brushes of the tail sealing system / monitoring of grease consumption of the bearing sealing system to seal against face pressure, hydrostatic and annular grout pressure / volumetric monitoring of the excavated material per mining cycle to minimize the risk of over breaks / use of Soil conditioning agents during the mining operations in approved mixes to handle the geotechnical and groundwater conditions expected along the tunnel alignment.

• Responsible to supervise the erector operator that will erect segmental lining according to building tolerance specified in the contract. The plane and the lips & steps of the segmental shall be within the specified tolerances.
• Responsible of implementation of the annular grouting procedure behind the segmental lining. This includes the check of the approved pumpability of the primary grout before the starting of the mining and the volume and pressure of grout injection throughthe tail skin. Control correct use of grout injection units.
• Responsible for execution of proof drilling and secondary grouting (if required).
• Responsible for Supervision of Mucking operations and spoil handlings within the TBM.
• Coordination of supply of tunnel consumables (Segments, segment accessories, Component A and B of annular grout, soil conditioning agent, tail skin grease, main bearing grease, ventilation ducts, supply pipes, walkways, rails etc.) with Shaft Logistic Manager/TBM Operator.
• Supervision of tunnel logistics and optimization of the interface between shaft crew and tunnel crew.
• Supervision of works related to extension of supply pipes, rails and ventilation ducts.
• Ensure the correct and safe usage of rolling stock and lifting equipment. Supervision of all rolling stock activities in the back up area.
• Ensure that all transported materials will be securely fastened to rolling stock.
• Responsible for proper installation/ extension of emergency walkway within the tunnel.
• Responsible for track maintenance between tunnel face and tunnel eye.
• Assist Tunnel engineers in regards tunnelling shift reports and daily records.
• Checking and optimization of TBM consumables.
• Assist mechanical team regarding assembly of the TBMs before the initial drive and disassembly after completion of tunnel drives.
• Assist mechanical team with regards to cutting head and cutting tool inspection.
• Responsible for identifying all safety hazards and notifying the appropriate persons accordantly.
• He will guide the tunnel engineers with his knowledge and experience.
• Ensure safety of workmen during construction in compliance with OHSA and its regulations.
• Awareness of the approved emergency procedures/ contingency plans/ communication procedures/ rescue plans. Shall be prepared to take charge of all emergency situations within the tunnel.
• Awareness about safety risks associated with Confined space.
• Monitor the worksite for unsafe conditions and unsafe acts.
• Maintaining good housekeeping and keeping all escape routes clear within the TBM, tunnel and shaft bottom.
• Maintaining the specified illumination within tunnel according to the contractual levels.
• Awareness of Method statements/ work procedures/ break in/ break out procedures.
• Ability to perform daily safety and maintenance checks.
• Responsible for ensuring the correct and safe operation of tunnel equipment and ensuring daily operators plant checks are conducted
• Recording and documentation of labourer working hours within the area of responsibility.
• Define labour requirements and support in the selection of proper candidates.
• Assist the QA/QC department with quality control and documentation.
• Assist TBM General Foreman in promoting communication throughout the tunnel team.
• Hold SOS briefings and TBT as and when required
• Providing new workers with proper orientation to the workplace.
• Performs other related duties as assigned by the General Foreman

The Ideal Candidate

• A strong understanding and working knowledge of Health and safety policies, Environment requirements along with the OHSA and its regulations
• Previous TBM EPB Pit Boss role
• SSSTS Card
• Safety Critical Medical
• Tunnel Safety Training Scheme
• First Aid (desirable)
• Working experience in the implementation of major construction projects are considered to be an asset
• Good communication skills
• Good organizational skills
• Team player
• Excellent written and verbal communication skills
• Strong results focused leadership
• Ability to make critical decisions autonomously
• Ability to multi-task with attention to detail
• Fluent in English
• MS Office skills (Word, Excel and Publisher)

About the Company The role will work on the HS2 project. HS2 is the UKs new high speed rail network. It will be a catalyst for economic growth across Britain, freeing up space on the existing railways and connecting 8 out of the UKs 10 biggest cities with fast, reliableand frequent high-speed services The