GREY:NEVDQ - Post by User
Comment by
bogfiton Aug 18, 2021 7:49pm
127 Views
Post# 33728109
RE:RE:RE:RE:RE:RE:stope backfill
RE:RE:RE:RE:RE:RE:stope backfill"
but water can be a challenge even in the driest state in the US."
Yep! Always been a problem. Look i.e. Sutro Tunnel -
(for flatlanders Sutro Tunnel - Wikipedia )
Company reported water during the shaft construction four or five years ago.
b.