I doubt it. Depending on how deep the foundation is, a shoring system is installed. Sheet piling in many applications is placed around the foundation area and concrete is placed at the bottom of the floor bed through tremie application. This will "plug" the hole from the bottom. The water is then pumped out and formwork can be erected
Rawad El-Debs Thanks mate, the other thing is when they pour the concrete do they slide the tube up while it's still wet? And on long piles do they have to do it in sections, say, tubes 8 to 10 ft long stacked on top of each other?
Shale splits, but bedrock, assuming it's a granite type won't. But once you hit bedrock, there's no need to go down further as it would support the load of the pier.
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This machine can drill in the deep water even in the sea water by using a casing application and trimie for concrete plugging.
DEL -MAG ......DONE DEAL.............OLD SCHOOL HERE !!!!!!!!
Hey man, just curious whats the dutys of the assistant? in 15 minutes all he did was unlock and lock that big yellow head piece ?
That's what he does. He also spots the caisson and the machine where the operator may not have visibility to
Can this machine drill underwater too? I working on a project and I'm trying to figure out how foundations are made underwater.
I doubt it. Depending on how deep the foundation is, a shoring system is installed. Sheet piling in many applications is placed around the foundation area and concrete is placed at the bottom of the floor bed through tremie application. This will "plug" the hole from the bottom. The water is then pumped out and formwork can be erected
+Rawad El-Debs thanks!
Is the tube doing the cutting as it rotates or the drill bit inside?
As the drill cuts, the tube begins to slide down to prevent the hole from collapsing in
Rawad El-Debs Thanks mate, the other thing is when they pour the concrete do they slide the tube up while it's still wet? And on long piles do they have to do it in sections, say, tubes 8 to 10 ft long stacked on top of each other?
I'm not too sure if they remove the tube at all. This caisson was about 28 meters deep, so about 60 feet! The concrete is termmied into the hole
I'm a bit confused... what was happening the first 2:07 of the video before the casing was being lowered?
The auger was clearing out some earth that was binding the sleeve. We hit some shale at about 15m down
oh thanks for the reply. does that auger drill into bedrock also?
Shale splits, but bedrock, assuming it's a granite type won't. But once you hit bedrock, there's no need to go down further as it would support the load of the pier.
I am 50 years old & been drilling 25 years with this rig & others WTF is he doing !!???????????????????
Why is he even reverse/ back spinning counterclockwise is what I don't understand?
This operator is big fool he don't know how to operate the machine
This just hurts my eyes......You guys need a new driller
I'm think the same, not drill operator
Operator not good exprimen new
É melhor dar formação a esse operador.
horrid operator let me know if you need a real operator. nice machine though
Pekok