Twice in the last two years, we were booked to come and stabilize cliffs around Christchurch when another earthquake brought more damage and obliged to reassess the plans.
At last, we were called by a large local abseiling company, who has been granted the contract by Fulton Hogan despite no previous experience in drilling. At McCormick reservoirs in Sumner, the initial design, a self-drilling system, didn’t work for 2 weeks until I managed to convince everybody that an open hole strategy had to be deployed.
We’ve seen in Christchurch recovery other occurrences of drilling companies called on abseiling works and abseiling companies specialized in cleaning windows attempting geotechnical jobs. What a waste of time and ratepayer money…
Conclusion: Always ask the experts and experienced first!
Photos (c) DAS