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25th January 2008, 11:26 PM
| #1 (permalink) |
| Sappling  Join Date: Jun 2007 Location: Sydney Australia
Posts: 12
|  Euc pillularis hung up We recieved a callout from Energy Australia to remove a fallen tree suspended on their wires. The wires were covered Aerial Bundle Cable (ABC). I went down to check it out and was a little taken back.  The tree had snapped at the base and was still attached to the stump, it was on an embankment above a walkway with two major weight bearing points, the ABC and a weak looking branch that had a partial fracture. There was no access for a crane due to the masses of overhead infrastructure and the only tower that could gain access was a 50ft, again due to OH wires. The 50 could only reach the last third but this was enough to clear the ABC and other services. I decided to set up a large rig off two trees that were just close enough. The plan was to use one tree ( a large Euc punctata, with bracket funghis and a suspect top fork) as the main hang point, but to take the stress off the weak fork I put two pulleys at equal height and set the rope so that the branches pulled inwards and not away from the fork. The other tree was a cinnamomum camphora that was set in a similar two pulley systen to be used as a brake on the slew. As a saftey stop i put a butt rope on the bottom of the snapped tree with a porta wrap and locked this off and also butt tied the trunk to the stump. Troy dean a contract climber friend got out on the suspended tree from the next closest tree and put in two slings, a 2mtr and a 3mtr, because the fallen tree had two major weight bearing points that were not of equal height I wanted to lift the lower section up a little faster with the shorter sling. The ends of the slings were shackled together and attached to the major rigging tree.Both of the rigging lines were being controled with a friction drum lowering device. Tension was applied and then I started takingfoilage off and the tree branch that had the weight started to peel away. Again Troy D to the rescue with a 4:1 mechanical crank up thingy, the offending branch was strung back to another solid trunk and the cutting continued. The end result was as I wanted with the fallen tree floating off the suspennion and lowered down to the deck. All wires remained up and the two garages and the fence that it was over did not get scratched. During the whole process there was a constant trickle of residents coming through as the pathway was the only access and egress for the residents along the riverside. Many thanks go out to Josh Barker of The Joshua Tree and Troy Dean of Troys Trees, without who's help and ideas and b!%ls this job would have done my head in. The pics are a bit hard to see but on some I've tried to hilight the fallen bits. Any queries just post and I'll try to explain  Cheers Brad |
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26th January 2008, 06:44 AM
| #4 (permalink) |
| Semi-mature vigorous tree Join Date: Jan 2008 Location: ONTARIO, CANADA
Posts: 94
| Re: Euc pillularis hung up Nice Pics Gents looks like one hell of a job I have had to do some big Trees on houses and i love that. it is as fun as it gets thinking of the different rigging options and cutting points for weight bearing branchs but suspended on the power lines must throw a nice twist in things. Good Work I just bought a helmet camera looking forward to share videos and pics. Greg
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26th January 2008, 06:50 AM
| #5 (permalink) |
| Part of the Furniture  Join Date: Jun 2007 Location: Live Oak Florida home of the crapiest trees you will ever see.
Posts: 2,629
| Re: Euc pillularis hung up nice pics brad.did yu climb it?
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26th January 2008, 01:32 PM
| #6 (permalink) |
| Mature tree Join Date: Jun 2007 Location: Sydney
Posts: 441
| Re: Euc pillularis hung up Hi Brad, Well done to you and Troy. I looked at that job too, and didn't trust the available trees as anchors. Botany Cranes said they could get it with an 80 tonner. Shows there's more than one way to skin a cat! Steve.
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26th January 2008, 09:30 PM
| #7 (permalink) |
| Sappling Join Date: Jun 2007 Location: Sydney Australia
Posts: 12
| Re: Euc pillularis hung up Quercus, Peds were only allowed through when all cutting had stopped and the tree was well secured Newguy, I didn't climb it I was running from one end of the site to the other making sure all was well Gidday Steve, I looked at the crane option and thaught that a 55t would get under the wires and be able to lift, but if it slewed it would take out the wires on either side It was great fun to do, I haven't thaught that hard about a job for some time now. Thirteen years of tree work and this was the trickiest ons so far |
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30th January 2008, 03:06 AM
| #9 (permalink) |
| I'm new here so be nice Join Date: Jan 2008 Location: Sydney
Posts: 1
| Re: Euc pillularis hung up Good job Brad. SES had asked me to do it and was glad when they said energy australia organised someone else. Botany cranes wanted to use 100T, at a minimum charge of $4k, and wanted wires covered. With all the cars parked etc it got a bit hard. I wish I was there to see it |
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30th January 2008, 11:23 PM
| #10 (permalink) |
| Eric Frei Administrator - Brisbane L5 (Dip) Hort Cert III Arb + some  Join Date: Jan 2007 Location: Brisbane
Posts: 6,869
| Re: Euc pillularis hung up Good Job Brad and teams, nice pics too. Tell me, who paid for that job?
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31st January 2008, 02:53 AM
| #11 (permalink) |
| Mature tree  Join Date: Aug 2007 Location: Australia, Vic, Melbourne
Posts: 267
| Re: Euc pillularis hung up Brad & Crew Well done boys, it's always a challenge doing rigging on fallen trees. Keep it up!
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