Greenheart pile removal

[dumper]

We tried to shear 450 square greenheart but couldn’t just ran out off power 1/3 to1/2 way through like the grapple head idea, I think it would work especially if the feed is slowed right down

[Rough Hewn]

Just an idea...
If you could drill a 4" hole through the wood ,below the mud in solid wood, could you then attach a big bar/rod and winch out?

[oldwoodcutter]

If you’re cutting that greenheart you will need a very sharp and powerful saw, and will have to resharpen it much more frequently than normal. I’ve seldom cut harder wood than greenheart.

[Jonny69]

On 18/01/2019 at 12:55, Johnsond said:

Hi All 

ive a colleague whom has been asked to remove a number of greenheart piles from an old jetty. Basically they will be cleared to 1m below bed level then cut. Old school way was with a diver with an air powered saws as per pic but health and safety nowadays tends to not like such bits of kit. My query is are there shears out there that could deal with 14 inch square greenheart ?? And if so could they be crane deployed on a rigging bridle to be positioned on the pile ?? 

Just throwing this out there guys for some opinions 

Cheers 

I've never cut greenheart so this may be really stupid. But, can the diver not just handsaw them while they are on the crane sling? Even if it took a while to do each one. 

[Johnsond]

7 hours ago, Jonny69 said:

I've never cut greenheart so this may be really stupid. But, can the diver not just handsaw them while they are on the crane sling? Even if it took a while to do each one. 

Hi 

this is indeed the way its always been done, sling top of pile and then cut the bottom with a air or hyd chainsaw. The time taken to cut each one is a factor as diving is invariably an expensive operation and clients will soon kick back if it's taking too long.  What I was trying to find out is what with the use of shears etc nowadays for felling is would there be a different ie better and safer way to carry out the task. Probs looking like old school or maybe an adapted grapple saw type arrangement. 

 

[Jonny69]

15 hours ago, Johnsond said:

Hi 

this is indeed the way its always been done, sling top of pile and then cut the bottom with a air or hyd chainsaw. The time taken to cut each one is a factor as diving is invariably an expensive operation and clients will soon kick back if it's taking too long.  What I was trying to find out is what with the use of shears etc nowadays for felling is would there be a different ie better and safer way to carry out the task. Probs looking like old school or maybe an adapted grapple saw type arrangement. 

 

I meant a handsaw like a Silky or bowsaw. No power tools underwater may appease the risk assessors.

[dumper]

2 hours ago, Jonny69 said:

I meant a handsaw like a Silky or bowsaw. No power tools underwater may appease the risk assessors.

Rather you than me

[se7enthdevil]

14 hours ago, Jonny69 said:

I meant a handsaw like a Silky or bowsaw. No power tools underwater may appease the risk assessors.

you may as well be attempting to cut concrete with a hand tool.

 

green heart was not often harvested in south america until the arrival of the powered saw or chainsaw.

[Stubby]

On 20/01/2019 at 23:10, TIMON said:

I used to work alongside a firm called Dean & Dyball on the south coast, They specialise in the construction and demolition of coastal and marine structures. May be that someone there would be willing to share their expertise with you. If anyone should know, it would be them.

I see them out and about from time to time .

[Stubby]

21 hours ago, Jonny69 said:

I meant a handsaw like a Silky or bowsaw. No power tools underwater may appease the risk assessors.

Just as well piss at the moon .