TUNNELS
MERCO’s expertise includes all types of tunnel construction and rehabilitation techniques from TBM mining to drill and blast excavation methods, as well as the full array of soft ground and mixed-face mining techniques.
- New Construction (TBM, Drill and Blast)
- Soft Ground and Mixed Face Tunnels (Shield, NATM, SEM)
- Tunnel Rehabilitation and Enlargement
- Waterproofing
- Rock Support Systems
- Shotcrete
- Grouting and Ground Improvement
- Emergency Work
- Underpinning
MERCO’s reputation for creative problem solving of complex engineering issues, including innovative construction phasing and staging plans, while maintaining safety and productivity at all times, has put MERCO at the forefront of tunnel construction and rehabilitation.
Our field-proven tunnel specialists develop custom-tailored solutions to the unique challenges each of these projects present. This fresh approach to each job helps ensure projects that are successfully completed on or ahead of schedule, and has saved our customers millions.
PRECONSTRUCTION
The success of every MERCO project is a function of the commitment of time and energy we spend on Preconstruction activities. Constructability reviews, phasing and scheduling, and value engineering (including any required design/build functions) are all vital components of a well formulated preconstruction strategy, a strategy that has saved MERCO clients millions of dollars.
CONSTRUCTABILITY REVIEW
MERCO’s Constructability Reviews provides owners with the opportunity to benefit from our extensive field experience, at a time when it can have the greatest impact on the overall success of the project. By anticipating and taking steps to mitigate field problems before the start of construction, we more effectively maintain or reduce the project schedule while minimizing potential change orders.
VALUE ENGINEERING
At MERCO we perform Value Engineering studies to help our clients evaluate their options for accelerating the schedule, reducing costs, and/or improving quality. Everything from construction phasing, to the processes and materials are reviewed to ensure that we deliver the best possible value for the owner. Dependent upon the project and considering the circumstances, Merco will perform both the Design and Build tasks related to the work (Design Build). These Design Build projects range from small private rock slope projects with no prior engineering to large public heavy civil projects.
