AKKERMAN EQUIPMENT SYSTEMS ccavator Shiel T^ffnel Boring Guided Boring Microtunnel Boring lachine (MTBM) Machine (EPBM) Ground Conditions • Medium to stiff clay • Weathered rock • Non-pressurized ground Medium to stiff clay Weathered rock Non-pressurized ground High ground water table Wide range from sand to 1 Soft material requiring foam slurry to balance Common Base Machine Sizes Common Drive Common Guidance Pipe jacking Laser, passive Laser, passive Theodolite, active Laser, active Laser, active *Akkerman standard sizes can be customized to suit project needs. **Two-pass defined as segment erecting, liner plate and ring-beam and lagging installations. Shaft Size Project specific