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T-Junction Dig 3
1/27/01
Diggers
Wayne Burnett, Bill Copeland, Steve Dalton, Terry DeFraties,
Jeremy Eaton,
Andy Free, Rick Hines, Ron Lather, Tom Lounsbury, Lisa Teufel,
Ryan Thompson
We plugged the hole
After about 4 hours of jack hammering we had opened a cylinder
about 3.5 feet
in diameter and 2 feet deep at the top of the bedrock. At that
point we
found the hole plugged for the second time that day. The first
plug was
easily removed with a steel fence post lowered on a rope. Attempts
to remove
the second plug with the fence post failed. Dropping one of the 15
feet by
2.5 inch steel tripod legs on the plug 70 feet below also failed.
The final
attempt to ram out the hole used a 100 pound, 10 foot long 4 inch
I-beam.
The I-beam also failed. During the attempts to remove the plug
water filled
to a depth of 14 feet above the top of the plug.
How we plan to remove the plug
I assume (hope) 14 feet of water pressure will wash the mud out of
the plug
and drain off into the cave. This will make the ram more
effective, without
the water to slow it down. Without the mud the ram should break
the rock and
clear the plug.
Before we return we will round up a heavier ramrod. A section of
railroad
rail or pipe weighing about 500 pounds sounds about right.
To keep additional mud from washing in and to get ready for plan B
it the
ramrod does not work we will obtain a 10 foot tall by
approximately 5 foot
diameter pipe. We will weld some horizontal fins on the pipe,
place it on
the bedrock and back fill around it. The fins will lock the pipe
into the
ground giving us a solid anchor to push against if it becomes
necessary to
use a hydraulic jack and a long pipe to push out the plug.
If you have other suggestions of how to remove the plug (other
than
explosives) please let me know.
Other activity
Gerry Gattenby is making progress on obtaining a 16 foot diameter
by 40 foot
tall silo. He hopes to have a crane lay the silo on its side so we
can
disassemble it. It is formed from 5 by 8 foot section that are
bolted
together. The roof and two 8 foot tall section could make a secure
building
over the entrance.
Greg Fry has arranged for electrical power to be brought to the
dig. He has
granted the power company an easement for the new poles and line.
Since we
are a 501 c 3 organization the power company will install the line
at a
reduced rate, which should be less than $400. The power company
will locate
a transformer near the dig so will have adequate power for 240 V
welders or
other high power equipment. We need to clear some trees along the
fence to
make way for the power line. Any volunteers?
We de-rigged the sinkhole dig and moved ropes, chains, block and
tackle,
ladders, pulleys and outer item to the T-junction dig. When I went
down into
the sinkhole dig to pull up the ladder from the cave I found
everything about
the same as we left it. The dig still looks secure and the cave
below still
looks unstable.
We need to enter the T-Junction dig from the gravel road and not
Hwy 7 to
minimize damage to the pasture. Vehicles not hauling gear should
park just
inside the fence and walk to the dig. Carpool when possible.
Greg Fry, son Dillon, Dillon's grandfather Bruce, and Dillon's
grandmother
visited.
CCC thanks go to:
Lisa, for the tasty beef stew that filled us and warmed us
Saturday night!
Steve, for obtaining and hauling the tripod, compressor,
jackhammer,
generator, lights and other tools to the dig!
Greg, for making the arrangements with the power company and for
putting up
with us!
Danny Schupbach, at Journagan's for his help with steel,
compressor and
jackhammers!
See attached photo.
Rick Hines
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