A project we are working on requires a penetration through a existing concrete tunnel lining. The tunnel is in rock we are drilling a vertical shaft to the required elevation. the problem is that there is approx 20' of head above the tunnel. How can we limit the amount of water flowing into the tunnel?
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tunnel lining penetration
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dicksewerrat
Civil/Environmental
Call a few well drillers for advise. All else fails, Call Tri-State Well drillers in Minnesota. I have used them for this type of construction in the past. Sorry i don't live there any more and do not have a number for you. They should be in the Minneapolis phone book.
Richard A. Cornelius, P.E.
Richard A. Cornelius, P.E.
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