Ground anchors

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Re: Ground anchors

Postby bat » 14 Jul 2018, 19:48

Hi all
Thanks for your input, I had a chance to cut one of the ground anchor pegs, out of the aluminium today to see if it would drive into the ground without bending.

Image
Image

The peg drove in ok, despite the very hard ground, however not stoney
Removal did present some problems and highlights the need to have a lump on the end to lever against.

Image

The biggest problem may be the aluminium is too soft to be hammered in. A larger lump on the end may help to elevate this problem.

Image


Garyd
I do have a couple of these but a bit too heavy (the only thing I have that will turn them is a large pipe wrench)

Image

I like the hexagonal idea, the aluminium I have is to flat so will not twist in the ground.

Silverbullet
("barley twists" that brings back memories I wonder if there still available) Thanks, I thought there would be a name for it, however having had a play it looks like it would be more of a hindrance than a help, I'll have to find another excuse to get a kiln. I was under the impression that aluminium retains its properties despite heating (when cold again). the ability to harden the ends would certainly be an advantage

Approximate weights
Steel pegs 0.860 Kg X6 = 5.16 Kg
Aluminium 0.675 kg x6 = 4.05 Kg
so a weight saving of around a bag of sugar, (well I do use a lot of sugar and have the aluminium).

bene
I am hoping to go to the overland show, so a recovery workshop would be much appreciated, however I don’t know if I am able to attend yet as it may clash with the national caving conference (hidden earth), which I usually run the scouts stand. Hope to find out soon.

Regards Gary
Last edited by bat on 15 Jul 2018, 16:34, edited 2 times in total.
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Re: Ground anchors

Postby garyd » 15 Jul 2018, 12:28

Not sure if it's me or you, Gary, but I'm not seeing the photos in your last post.
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Re: Ground anchors

Postby bat » 15 Jul 2018, 16:33

Sorry forgot to take the S of the HTTPS (again )
Fixed I think
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Re: Ground anchors

Postby garyd » 15 Jul 2018, 16:59

Gary,
the green screw pin you show is not the type I referred to. The ones I used were like those shown at https://www.bingapis.com/images/search? ... ajaxhist=0.

A loose pin can be put through the hole and used to rotate the driven pin, loosening it in the ground and allowing withdrawal.
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Re: Ground anchors

Postby bat » 16 Jul 2018, 12:06

Hi Garyd
Thanks for the picture link (sorry the screw in anchor was just me being silly, I did get what you meant,). I’ve also seen the anchors in your photo before (on E-Bay) but thought the plate was too heavy, I totally overlooked the hexagonal pegs, just assumed they were round.
I like the idea of having hexagonal pegs (hadn't thought about that method of extraction until you mentioned it) but think to make them in aluminium would probably be prohibitively expensive, I will continue looking.

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Re: Ground anchors

Postby jebiga41 » 18 Jul 2018, 08:33

A quick question regards this don't want to rain on your parade wouldn't the pins pull out in soft or sandy ground where one is likely to have to use this ? Tried similar technique myself on a certain beach last year with stakes in the ground and just ended up pulling out the anchor (highlift jack handle or something similar and rebar tent pegs ) on reflection there weren't as many pegs and no spreader bar but might be worth testing it on gravelly and muddy ground before going further ? Would be very interested on how you get on keep us posted
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Re: Ground anchors

Postby bat » 18 Jul 2018, 09:37

jebiga41 wrote:A quick question regards this don't want to rain on your parade wouldn't the pins pull out in soft or sandy ground where one is likely to have to use this ? Tried similar technique myself on a certain beach last year with stakes in the ground and just ended up pulling out the anchor (highlift jack handle or something similar and rebar tent pegs ) on reflection there weren't as many pegs and no spreader bar but might be worth testing it on gravelly and muddy ground before going further ? Would be very interested on how you get on keep us posted


Hi jebiga41
short answer yes, I think you can add peat-bog to the list as well. probably back to digging and a deadman /snow bollard type anchor in these cases. I have a couple of ideas but haven't made any mockups yet,
One is to have a sheet of tarpaulin with tubs for the ground plates in each end, this is then buried (sorry can't avoid the digging) and used as a deadman, anchor.

comments and suggestions always welcome.

Regards Gary
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Re: Ground anchors

Postby jebiga41 » 18 Jul 2018, 10:10

Yep either that or the traditional solution is just bury the spare wheel which doesn't require lugging around more kit ;) have a few ideas myself but would need to put them on paper and test mock ups whenever I get the time
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Re: Ground anchors

Postby silverbullet » 18 Jul 2018, 16:03

Regarding soft ground, I understand that there are optimal angles for both the pin and the V formation, to minimize pull-out.
Obviously nothing holds very well in sand/shingle other than the buried spare wheel or a bag anchor.
More reading required?

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Re: Ground anchors

Postby jebiga41 » 19 Jul 2018, 22:32

Was thinking of maybe a hybrid of the "Plough" design with what you have, such as a triangular shaped plate with a shank on it that could be hammered into the ground which would fit into a slot on the v plate you have backed up by some pins if you get what I mean. This would increase the surface area and in theory the ability to hold ?
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