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Retrieving Dropped Item down Inclinometer

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MTNClimber

Geotechnical
Jul 24, 2018
658
Long story short, a technician dropped a 10' stainless steel telltale rod down a 50' inclinometer. Anyone have a good idea on how to retrieve it?
 
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I'd manufacture a device similar to a woven finger "grabber" basket. When it fits down over the rod, the diagonal threads contract to grab the rod. It would take some experimenting to get the right size. The attachment probably has to be a rod system to give some ability to push it onto the rod down there. I'd try different "basket" thread material, such as thin wire, plastic basket, string soaked in glue, etc.
 
How about a metal tube that has slight flare on end lined with quick setting glue. Get it down over the rod and leave until glue sets. only minimal glue so any loss of grip does not leave rod then glued to inside of main tube.

Or just abandon it and install new tube nearby.
 
Do a Google search for "Cable-pulling grips". While these are for cables it may be possible to modify the larger one to fit over the rod. At least the idea and material can be used for making one that works here.

I see SLINGCO has at least one large one that may well do this job. 888-685 9478

To get some weight for the gripper, put a length of pipe on the rope that is attached to the gripper.
 
Ive had success using a 3 hooked fishing spoon in the past that is with the assumption there is something on the rod the hook can bite into.
 
Thanks for the replies. Unfortunately the rod is smooth so the fishing spoon would be a long shot but might be worth trying anyways. I’ll look into the cable pulling grips too.

I was trying to think of a way to make a long snare pole but I’m not sure how to make one work with several segments that have to be assembled as it’s being lowered and then dissembled as we’re pulling out.

They make some relatively cheap endoscopes to give us some eyes on what’s going on down there.

Needless to say I’m not very hopeful that we’re going to salvage this hole.
 
Instead of buying a cable grip see if the larger power contractors may be able to loan you the proper size.
 
Just to avoid missing the obvious solution, is it a nonmagnetic alloy?

My glass has a v/c ratio of 0.5

Maybe the tyranny of Murphy is the penalty for hubris. -
 
Thanks for asking, it forced me to ask someone to check. It is magnetic! Someone else said it wasn't magnetic and we all just assumed they were correct. This will definitely be the route we take.
 
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