Balaji Rajakrishnan
Chennai
Summary
Dynamic Tunnel Shift Engineer/Manager with 17+ years of experience, proven expertise at Dongah, AECOM, and TATA, excelling in project management and quality control. Successfully supervised the construction of over 15 km of metro twin tunnels using EPB and Slurry Shield TBM machines. Supervised 3 km of micro-tunnels using semi-shield slurry pipe jacking TBM machines, and supervised the NATM crossover and 30 cross passages using NATM, along with final lining works. efficiency, adept at geotechnical analysis and fostering teamwork, driving projects to timely completion while optimizing costs.
Overview
18
18
years of professional experience
Work History
Tunnel Shift Manager
TATA Projects Limited
Chennai
03.2023 - Current
- Involved in the project monitoring of 10 km of twin tunnels using 5 Terratec (6.65 m) and 2 Herrenknecht (6.65 m) EPB TBM machines.
- Site setup, plant operation, and coordination of the work of all TBM crew accordingly.
- Responsible for TBM shield assembly, setting up the backup car, and the grouting plant.
- Preparation of initial drive and main drive works.
- Responsible for the installation of the TBM entrance seal, thrust frame, confinement, rolling stock, backup rail, backup gantries, grouting plant, segment crane, belt conveyor systems, and service pipes for tunnels and TBM.
- Responsible for the installation of tunnel ventilation, chiller system, fire hose, fire alarm system, and tunnel walkway.
- Oversee the TBM excavation operation and parameters monitoring to ensure that all operations are under control.
- Training TBM operators and manpower for tunnel works.
- Planning and control of rolling stocks, segments, service pipes, greases, and rails.
- Responsible for supervising the tunneling construction works, scheduling, material control, work quality control, survey alignment control, ring building quality, and tunnel repairing.
- Photographing ongoing work and any accidents that occur, as well as safe work procedures and risk assessments for TBM.
- Preparing daily tunnel reports and submitting them to the Chief Tunnel Manager.
Tunnel Engineer, Maple - GC to MMRCL
AECOM India Private Limited
Mumbai
11.2018 - 03.2023
- Responsible for reviewing all drawings, design proposals, and Method Statements related to tunneling works, and issuing the DSR within the stipulated time.
- Responsible for undertaking the support during construction in relation to the geotechnical and tunnel design.
- Involved in the project monitoring of 4.03 km of twin tunnels using 2 Robbins (6.65 m) slurry TBM machines.
- Supervision of shaft preparation works for the TBM parts lowering, assembly, testing, commissioning, and carrying out SAT.
- Supervision of tunneling-related work, which includes TBM and NATM, reviewing the progress of day-to-day tunneling and CP activities.
- Inspection of installations and reviewing of I&M reports on a daily basis.
- Carry out the regular Tunnel Inspection, Quality, and Safety Inspections.
- Carrying out the cross passage and crossover works, starting from soil stabilization, excavation by NATM method, along with primary and secondary lining.
- Supervision of 11 numbers of cross passages and crossovers using NATM, along with final lining works.
- Checking and recommending the monthly contractor's bill to the SRE/CRE for further approval.
- Preparation of the bifurcation of items as per the SOP for the Monthly Billing Works.
- Preparing the Rate of Progress & Root Cause for Delays, updating the same to the contractor for remediation
- Coordinating with GC & Contractor – Design, contracts, Billing, quality, safety, tracks and other System Teams for the progress
- Preparation of Monthly Reports as per the Clients Requirements, carrying out Weekly, Monthly Audits with respect to Quality and Safety
- Monitoring and Updating of Progress with respect to achieve the key dates with forecasting of 3 months & 3 weeks rolling program against DWP
- Reviewing inspector’s daily reports and supervising the contractor’s operations
- Work with the Safety Engineer to monitor the Contractors safety arrangements and respond promptly to any safety concerns raised by the Safety Engineer
Senior Engineer
RCM Infrastructures Limited
Theni
10.2016 - 04.2018
- Monitor and execute the laying of DI, PVC pipes, the construction of sumps, overhead tanks, and pump houses.
- Survey work includes alignment checking, leveling, pipeline testing, and commissioning work.
- Responsible for checking the quality of concrete on-site before casting.
- Responsible for the progress of work and ensuring the completion of tasks as per the planned schedule.
- Preparation of the monthly contractor's bill for different works executed, such as concrete, reinforcement, shuttering, and pipeline works, etc.
Tunnel Engineer
DONGAH Geological Engineering Ltd, Qatar
Doha
11.2014 - 09.2016
- Site setup, plant operation, and coordination of the work of all TBM crew accordingly.
- Involved in the project monitoring of 7.8 km of twin tunnels using 2 Herrenknecht (7.10 m) EPB TBM machines.
- Responsible for TBM shield assembly, setting up the backup car and grouting plant, installation of the TBM entrance seal, thrust frame, rolling stock, backup rail, backup gantries, grouting plant, segment crane, belt conveyor systems, and service pipes for tunnels and TBM.
- Preparation of initial drive and main drive works.
- Oversee the TBM excavation operation to ensure that all operations are under control.
- Training TBM operators and manpower for tunnel works.
- Responsible for supervising the tunneling construction works, scheduling, material control, and work quality control.
- Responsible for survey alignment control, ring building quality, and tunnel repairing.
- To ensure the quality of work meets our project specifications and standards.
- Planning and control of rolling stocks, segments, service pipes, greases, and rails.
- Supervision of 16 cross passages using NATM, along with final lining works.
- Photographing ongoing work and any accidents that occur, as well as safe work procedures and risk assessments for TBM.
- Preparing daily tunnel reports and submitting them to the TBM Production Manager.
Tunnel Engineer
DONGAH Geological Engineering Ltd, Bahrain
Manama
02.2013 - 12.2013
- Involved in the project monitoring of 3 km of sewerage tunnels using 5 no's of Herrenknecht and Rasa (2.80 m and 2.2 m) semi-shield slurry pipe jacking TBM machines.
- Site setup, plant operation, and coordination of work of all TBM crew.
- Responsible for TBM semi-shield assembling, installation of entrance seal, and TBM jacking frame.
- Installation of service pipes, slurry pump, dewatering pumps, and ventilation system.
- Oversee the TBM excavation operation to ensure that all operations are under control.
- Supervising the tunneling construction works, ensuring quality control as per project specifications and being responsible for survey alignment control and tunnel repair.
- Photographing ongoing work, accidents, if any.
- Implement safe work procedures and risk assessments for TBM assembling and dismantling works.
- Preparing daily tunnel reports and submitting them to the TBM Production Manager.
Site Engineer
Sotravic Limitee, Mauritius
Rose Hill
05.2010 - 12.2012
- Work as a Site Engineer: laying of pipe gravity street sewer pipelines, house connections, and construction of precast manholes for the sewerage network under the sewerage zone.
- Water testing for manholes and air testing for UPVC pipe lines.
- Construction of manholes of different sizes, as per specifications and drawings.
- Daily preparation and maintenance of execution records, such as daily progress reports.
Junior Engineer
IVRCL Infrastructures and Projects Ltd.
Chennai
06.2007 - 05.2010
- Responsible for construction, seawater intake, gravity settler, gravity sand filter, coagulation, flocculation, sludge collection pit, R.O. building, control building, mass capacity sumps, pumping station, and retaining wall, etc.
- As per the drawings and preparation of the bar bending schedule.
- Calculation of quantities of different materials, such as concrete, reinforcement, shuttering, and staging required, etc., and providing them to stores for the materials needed at the site for proper execution.
- Responsible for all concrete works, such as casting the base slab, walls, roof slabs, and drains, etc.
- Responsible for checking the quality of concrete on-site before casting.
- Preparation of the monthly contractor's bill for different works executed, such as concrete, reinforcement, shuttering, structural works, etc.
Education
B. Tech - Civil Engineering
Dr.M.G.R Educational And Research Institute
Chennai,India12-2024
Diploma in Civil Engineering - Civil Engineering
Tamilnadu Polytechnic College
Madurai, Tamil Nadu04-2007
SSLC -
TN – State Board
Madurai,Tamilnadu04-2004
Skills
- Project management
- Construction Management
- Tunnel engineering
- Quality control
- Oversee safety and safety compliance
- Construction supervision and work area inspection
- Work Planning and Prioritization
- Problem-solving and multitasking abilities
- Time management abilities
- Teamwork and collaboration
- Cost reduction and containment
- Geotechnical analysis
- Root-cause analysis
- Shift checklists and activity reporting
Languages
Tamil
First Language
Tamil
Advanced (C1)
C1
Hindi
Proficient (C2)
C2
Tamil
Proficient (C2)
C2
Telugu
Advanced (C1)
C1
Personal details
- Name: Balaji Rajakrishnan
- Date of Birth: 20/05/1989
- Passport Expiry: 24/02/2030
- Address: Plot 2 & 3, AR Rahman Garden, Shanmugha Sundara Puram, Theni - 622531
Declaration
The information stated above is true to the best of my knowledge and belief (BALAJI R)
Timeline
Tunnel Shift Manager
TATA Projects Limited
03.2023 - Current
Tunnel Engineer, Maple - GC to MMRCL
AECOM India Private Limited
11.2018 - 03.2023
Senior Engineer
RCM Infrastructures Limited
10.2016 - 04.2018
Tunnel Engineer
DONGAH Geological Engineering Ltd, Qatar
11.2014 - 09.2016
Tunnel Engineer
DONGAH Geological Engineering Ltd, Bahrain
02.2013 - 12.2013
Site Engineer
Sotravic Limitee, Mauritius
05.2010 - 12.2012
Junior Engineer
IVRCL Infrastructures and Projects Ltd.
06.2007 - 05.2010
B. Tech - Civil Engineering
Dr.M.G.R Educational And Research Institute
Diploma in Civil Engineering - Civil Engineering
Tamilnadu Polytechnic College
SSLC -
TN – State Board
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