Core Drilling a 900mm Stone wall

[mrrusty]

It will be clean

It won't. My company sub-contracts diamond drilling regularly for all sorts of jobs, and a 900mm thick stone wall is unlikely to core cleanly. The chances of loose infill are very very high, and the chances of getting a 110mm core through a 900mm wall and then being able to just poke a pipe through are very very low. You might get lucky, but chances are not.

If the infill drops behind the cutter on it's extension you will have fun!!

 

[bernardgreen]

You are all over thinking it tbh

How many rubble filled stone walls have you core drilled ?

Hammer out the hole

Better to gently remove the rubble by levering and prising at the stones, hammering can loosen the mortar above and then more rubble drops down into the hole.

 

[BlueLoo]

How many rubble filled stone walls have you core drilled ?

Hundreds.

I used to do this as a young man for a job.

 

[Harry Bloomfield]

It won't. My company sub-contracts diamond drilling regularly for all sorts of jobs, and a 900mm thick stone wall is unlikely to core cleanly. The chances of loose infill are very very high, and the chances of getting a 110mm core through a 900mm wall and then being able to just poke a pipe through are very very low. You might get lucky, but chances are not.

Exactly, that is why I suggested the standard tunnel boring method of chasing the drill bit through with a suitable diameter of pipe behind and on the drill's shaft.

 

[mrrusty]

Exactly, that is why I suggested the standard tunnel boring method of chasing the drill bit through with a suitable diameter of pipe behind and on the drill's shaft.

And it's why we subcontract this sort of challenging job rather than try and get our own fitters to do it...we use these guys fairly often https://www.d-drill.co.uk/?mh_match...4wE8PVvYxbux5q_uyFuDnbZQMPoGV1WhoCg6sQAvD_BwE

 

[wcavanagh]

Good call, found a place that will do it dor me for £200

 

[wcavanagh]

Well got the boys in to do it, job was done in 2 hours, with a wet cut dimond core. £200 well spent

 

[mrrusty]

That was a good price - who did you use? was it just a local company or national?

 

[wcavanagh]

It was a local Dundee company, can't fault it, turned up at 08:00 this morning, and done by 10:00
Turns out they do this all the time, right equipment and knowhow makes a difference.