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ajstoneservices
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« Reply #1 on: August 08, 2008, 01:14:54 AM » |
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Yep dogs have trouble pulling them out
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Ivan
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« Reply #2 on: August 08, 2008, 01:18:58 AM » |
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Have you seen the ground anchors that Frotter uses (pics on his 'show us yours' thread). We've put our 300W 6m turbine up using these, on very soft muddy clay, and they seem to have held reasonably well.
The anchor in your picture looks pretty good - I think that would be pretty good. Double up on them if you're unsure. Maybe screwfix can give a force rating on them?
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Eleanor
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« Reply #3 on: October 14, 2008, 09:41:38 PM » |
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Only just seen this so probably too late. These are very impressive http://www.stormanchors.co.uk/ground-anchorage.htmand will hopefully avoid anything like this  From memory you need to buy the driving tool for about £80 (may be less) then however many anchors you want for £20 each. Sounds expensive but what price do you put on peace of mind. |
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I'm doing this for free, please be nice to me  "Very few batteries die a natural death ... most are murdered"  |
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Ivan
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« Reply #4 on: October 14, 2008, 11:25:25 PM » |
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Very interesting product. I've emailed them to find out more.
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Adam
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« Reply #6 on: October 15, 2008, 05:23:33 AM » |
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Interesting Have been thinking of upgrading my guy wires from 4 to 8 before i fit larger blade to my turbine. Has anyone used or thought of using a gate post as an anchor, something around 10" diameter hamered into the ground about 6-7' at an angle with a post knocker. Reason i ask is that i have access to one of these  |
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« Last Edit: October 15, 2008, 05:28:21 AM by Adam »
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renewablejohn
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« Reply #7 on: October 15, 2008, 10:23:07 AM » |
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Interesting Have been thinking of upgrading my guy wires from 4 to 8 before i fit larger blade to my turbine. Has anyone used or thought of using a gate post as an anchor, something around 10" diameter hamered into the ground about 6-7' at an angle with a post knocker. Reason i ask is that i have access to one of these It will take more than a noddy post knocker to put in at an angle a 10" diameter post to a depth of 6 to 7 foot. |
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martin
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« Reply #8 on: October 15, 2008, 10:26:00 AM » |
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The thought did cross my mind that in order to save concrete, why not dig out a thundering great 'ole, bung a large steel plate in the bottom with appropriate attachments and chains, then fill the 'ole up again?..........  |
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Unpaid volunteer administrator and moderator (not employed by Navitron) - Views expressed are my own - curmudgeonly babyboomer! - http://www.farmco.co.uk |
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northern installer
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« Reply #9 on: October 15, 2008, 11:56:27 AM » |
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put your scrap car in the hole,and anchor to that?
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"government scrappage scheme still available on Tardis trade ins (dont ask how we get around the deadline...)"
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martin
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« Reply #10 on: October 15, 2008, 11:58:19 AM » |
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would seem logical, save a lot of energy over using concrete!  |
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Unpaid volunteer administrator and moderator (not employed by Navitron) - Views expressed are my own - curmudgeonly babyboomer! - http://www.farmco.co.uk |
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Adam
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« Reply #11 on: October 15, 2008, 08:48:14 PM » |
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Interesting Have been thinking of upgrading my guy wires from 4 to 8 before i fit larger blade to my turbine. Has anyone used or thought of using a gate post as an anchor, something around 10" diameter hamered into the ground about 6-7' at an angle with a post knocker. Reason i ask is that i have access to one of these It will take more than a noddy post knocker to put in at an angle a 10" diameter post to a depth of 6 to 7 foot. Would you like to bet on it |
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billi
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« Reply #12 on: October 15, 2008, 10:03:01 PM » |
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sure good equippment helps ....  I used galvanized steel tupe (1.5 inch) hammered with a sledge into the ground to built a frame fore my PV array.....  But i wouldnot trust that idea for anchoring guide wires , because the vibration and force Martins idea sounds good to me .... and there are many waste materials you can burry in the ground with a surfacearea and a chain attached and use the available soil as a weight ... much better then a pin .... surely the chain has to come out of the ground in the right angle towards the mast By the way as a warning , my tentioners for tightning the guide wires are rusty after one year and i am not able to tight them more  , i feel that this is important cause the wirerope expands a bid as well ... so should have greased them heavily Billi |
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Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
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Paulh_Boats
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« Reply #13 on: October 15, 2008, 10:45:56 PM » |
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Dig a spade wide trench perpendicular to the guy wire and bury 4 feet of scrap angle iron encased in a few inches of concrete - less to dig than a flat plate and the soil inline with the guy wire will not be disturbed.
Stainless anchor chain is about £15 a metre with SWL about 1000kg, pricey but it will never rust.
-Paul
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« Last Edit: October 16, 2008, 12:47:32 AM by Paulh_Boats »
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Eleanor
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« Reply #14 on: October 15, 2008, 11:50:13 PM » |
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All those approaches, particularly burying your rubbish, are the norm around here. However, sitting in a tin box being buffeted by gales we decided to take a slightly more "engineered" route and buy something that was designed for the purpose. No complaints yet, but gales forecasted (again) so could change at any moment  |
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I'm doing this for free, please be nice to me "Very few batteries die a natural death ... most are murdered" |
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