Geotechnical & Tunnel Consultants
A consultant is a universal observer who can look at a problem outside the environment in which the problem came
to be, thereby creating a solution that was never possible before.
Should you select the machine with:
total availability of machine parameters & operating variables
& responsive machine manufacturer
consistent record breaking
excavation advance rates
historical record of negligible learning curves
network of parts warehouses
Should you select the machine / manufacturer with:
lowest price (often underpowered)
historical record of commissioning problems
manufacturer consistently denying responsibility
offsite control of machine operational forces & penetration limits
consistent performance below predictions
low productivity over-running schedule voiding great buyback "deal"
threats of support withdrawal upon challenge
a company who will not stand by lease offers and forces purchase
a large, aggressive, and righteous "terrorist" legal stable &
The costs for machine caused delays on labor can be large
A cheap TBM above ground =costliest TBM underground!