Return To Quarter Way Up Hole

[The Old Ruminator]

The skull finder Brian Johnson approaching the site. It was through his intial care that the skull was preserved.

 

[The Old Ruminator]

Handshake connection. The tube is joined to the choke.

 

[The Old Ruminator]

Spoil heap in Boycott's Bonnet.

 

[The Old Ruminator]

Swop over. Me in the choke and Brian in the tube.

 

[The Old Ruminator]

You get it all here. Ribs bruised in the tube.

 

[The Old Ruminator]

Nigel in Boycott's Bonnett.

 

[The Old Ruminator]

Thoughtful in the choke.

 

[The Old Ruminator]

Mr Trundle's Staircase up to Mr Trundle's I Scream Parlour.

 

[The Old Ruminator]

A bit of photo fun from this month.

 

[mrodoc]

Glad I kept the faith on the tube! It was originally written off as an mud filled alcove.

 

[The Old Ruminator]

Glad I kept the faith on the tube! It was originally written off as an mud filled alcove.

Never. We always had faith in you trying to avoid the boulder choke.

 

[The Old Ruminator]

Fair play to Peter. The tube will now be modified and will form the main way into the dig thus avoiding the climb up over the propped Lintel Two and other nasty bits. We can then work forward along the fault. Two sessions next week.

 

[The Old Ruminator]

Big day today. It will look very differant tomorrow. Guess what ? No Camera !

 

[The Old Ruminator]

Camera day two though. Tube bypass completed . Collapsed choke made " secure " for further distabilization.

 

[Goydenman]

The dig looking good now... getting there.... push on.... stay safe

 

[The Old Ruminator]

Back Monday and Tuesday next week.

https://flic.kr/p/2r7W7kP

 

[shotlighter]

Back Monday and Tuesday next week.

https://flic.kr/p/2r7W7kP

By gum, that rock looks soft. Never seen a drill go in so quick!

 

[The Old Ruminator]

By gum, that rock looks soft. Never seen a drill go in so quick!

We often drill 175mm deep holes at 11mm width then top off the final 25mm of the hole with a 12mm bit. That for reasons left unexplained. The 12mm holes using another method are usually 500mm deep so take longer to drill. Other holes are for capping and plug and feathers.

 

[JohnMCooper]

I was taught it was bad practice to widen holes if using a tungsten carbide drill tip as it could chip it. Not sure if there is any truth in that assertion? If you want the first part of the hole wider drill that first then drill the rest with the smaller diameter bit. That's the opposite of drilling wood steel etc where it is normal to widen holes in stages.

 

[The Old Ruminator]

I was taught it was bad practice to widen holes if using a tungsten carbide drill tip as it could chip it. Not sure if there is any truth in that assertion? If you want the first part of the hole wider drill that first then drill the rest with the smaller diameter bit. That's the opposite of drilling wood steel etc where it is normal to widen holes in stages.

I think we might not get the alignment we want that way . Its only a very short top off but I get your drift. ( as it were )