How do I move this rock?

Author
Discussion

GliderRider

2,227 posts

84 months

Saturday 1st June
quotequote all
Shear legs would work if you can find a suitably heavy car to put outside the gate as an anchor point. Unless you already have the necessary long poles, blocks and tackle its unlikely to be cheaper than hiring the HSS gantry crane though.


fatbutt

2,720 posts

267 months

Saturday 1st June
quotequote all
Anything other than a gantry or well supported 1te hoist system your running a big risk of it dropping once lifted. That rock could be 500kg to 750kg which won't just hurt if it drops on a foot.

Get a rental gantry and make sure the base is well supported so it doesn't sink when the weight is moved.

Bodge it and someone's going to get hurt...

GliderRider

2,227 posts

84 months

Saturday 1st June
quotequote all
fatbutt said:
Anything other than a gantry or well supported 1te hoist system your running a big risk of it dropping once lifted. That rock could be 500kg to 750kg which won't just hurt if it drops on a foot.

Get a rental gantry and make sure the base is well supported so it doesn't sink when the weight is moved.

Bodge it and someone's going to get hurt...
Agreed 100%. Been there, been to the bloke in hospital and been to the subsequent enquiry.

Desiderata

2,450 posts

57 months

Saturday 1st June
quotequote all
Don't try to lift it, just drag it up something that will allow it to slide (scaffolding boards, trailer ramps, ladder etc).
Use a tirfor winch, or block and tackle or ratchet straps to provide the motive force.

blueg33

36,656 posts

227 months

Saturday 1st June
quotequote all
Thants nothing to an ancient Egyptian or the guys that built Stonehenge and they didn’t have access to Brandon Tool Hire

What you need therefore is 1000 slaves.

DonkeyApple

56,525 posts

172 months

Saturday 1st June
quotequote all
blueg33 said:
Thants nothing to an ancient Egyptian or the guys that built Stonehenge and they didn’t have access to Brandon Tool Hire

What you need therefore is 1000 slaves.
Ah, they used off season local workers rather than slaves so the modern equivalent would be say Butlins employees after September. biggrin

The key thing is that they didn't lift the heavy stuff but used sleds and ramps so as to minimise labour. The Egyptians used sand ramps and water as a lubricant. The Romans tended to use wood and olive oil.

My guess is that when that ornamental stone was delivered and positioned a mechanical arm and a trolly were used. I'd not use wheels now to move it up the slope but I'd roll it onto a sled and then haul it up a ramp. I'd also avoid the whole out of season worker bit. biggrin

FMOB

1,190 posts

15 months

Saturday 1st June
quotequote all
Use the force, where is Luke Skywalker when you need him?

Regbuser

3,857 posts

38 months

Saturday 1st June
quotequote all
FMOB said:
Use the force, where is Luke Skywalker when you need him?

fatbutt

2,720 posts

267 months

Saturday 1st June
quotequote all
Regbuser said:
FMOB said:
Use the force, where is Luke Skywalker when you need him?
Luke's dead from old age. It was long ago, and far far away

Fatboy

8,003 posts

275 months

Saturday 1st June
quotequote all
pinchmeimdreamin said:
Lots of balloons and a bottle of helium wink
As 4 blokes could just about get it off the ground, I'm going to put an upper limit of 1000kg on the weight of the rock, so what you need OP is a max of 1,000,000 helium party balloons and it'll just float up, if the rock is more like 500kg you'll need 500,000 party balloons, but you'll see it start to lift when you've tied on enough balloons.

Keep an air rifle handy to burst balloons if it starts to rise too quickly.

Bluevanman

7,489 posts

196 months

Saturday 1st June
quotequote all
Fatboy said:
As 4 blokes could just about get it off the ground, I'm going to put an upper limit of 1000kg on the weight of the rock, so what you need OP is a max of 1,000,000 helium party balloons and it'll just float up, if the rock is more like 500kg you'll need 500,000 party balloons, but you'll see it start to lift when you've tied on enough balloons.

Keep an air rifle handy to burst balloons if it starts to rise too quickly.
On that note, flag down a passing hot air balloon,get them to drop a rope,tie it around the metal bar,a blast of gas and it's off the ground and with a gust of wind it will be in position to drop in the upper section.
Foolproof smile

Rustybanger

42 posts

7 months

Saturday 1st June
quotequote all
You just need a wee 10st Scottish lassie wink


https://youtu.be/W8BaujIRRZY?t=236

Mr Pointy

11,426 posts

162 months

Saturday 1st June
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Given the lack of response hopefully the OP hasn't met a rocky end.

DodgyGeezer

41,049 posts

193 months

Saturday 1st June
quotequote all
Rustybanger said:
You just need a wee 10st Scottish lassie wink


https://youtu.be/W8BaujIRRZY?t=236
why are there two blokes peering up her skirt?

Lincsls1

3,368 posts

143 months

Saturday 1st June
quotequote all
Fatboy said:
As 4 blokes could just about get it off the ground, I'm going to put an upper limit of 1000kg on the weight of the rock,
I think you might be massively over estimating the ability of the average Joe there mate. biglaugh
Given the average man off the street can't even dead lift their own body weight on a gym bar.
500kg absolute max, probably quite a lot less.

DonkeyApple

56,525 posts

172 months

Saturday 1st June
quotequote all
DodgyGeezer said:
Rustybanger said:
You just need a wee 10st Scottish lassie wink


https://youtu.be/W8BaujIRRZY?t=236
why are there two blokes peering up her skirt?
Because there's a hole?


Fatboy

8,003 posts

275 months

Saturday 1st June
quotequote all
Lincsls1 said:
Fatboy said:
As 4 blokes could just about get it off the ground, I'm going to put an upper limit of 1000kg on the weight of the rock,
I think you might be massively over estimating the ability of the average Joe there mate. biglaugh
Given the average man off the street can't even dead lift their own body weight on a gym bar.
500kg absolute max, probably quite a lot less.
Oh yes, it's a very high estimate for sure smile , just to put an upper limit on it as a rom estimate smile

TGCOTF-dewey

5,474 posts

58 months

Saturday 1st June
quotequote all
Flood the lower and enough of the 2nd so that you can float the rock into place.

Sporky

6,549 posts

67 months

Saturday 1st June
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TGCOTF-dewey said:
Flood the lower and enough of the 2nd so that you can float the rock into place.
Maybe with mercury?

Or attach a really high pressure hose to one end of the pipe and a u-bend to the other, and use water to jet it up onto the higher level.

Steve Campbell

2,158 posts

171 months

Monday 3rd June
quotequote all
I'd be using the car jack in stages with pallets/board underneath to get it to just above the wall height, then slide using scaffolding boards or similar. You're only overcoming friction with the manpower then rather than gravity !