Pulling Over hang

[tod_k]

We wrecked these large cottonwood for the past couple of days. 5 total 38" to 84" dbh. Over a 3 phase. We had line kills for a change.

 

[tod_k]

The large wood over the wires was rigged in 2 pieces with a dwt. and a drift line 28" or 30" in diameter

 

[tod_k]

Coming over

 

[tod_k]

Being lowered.

 

[tod_k]

Next cut.

 

[tod_k]

Being lowered. These trees were pretty big for our area. One of the rare times I need to use a 200' climbing line. All in all it was fun.

 

[PUClimber]

Very nice work TK. It's always a pleasure to see your pictures.

 

[IJB]

Great work! I love the climbing/rigging photos you always post... really makes me sentimental in that I used to work at a great little independant company where nearly every day I climbed and roped and rigged big trees down. Over the last 6 months I've been working for a new company who's employees just don't have the get up and go, nor the knowledge/background/rigging experience/etc. and the boss is all about the bucket truck so we don't get sent out on good climbs hardly ever.

Awesome... keep it up.

 

[dhuffnmu]

Nice Job Cottonwoods are always fun. Well sometimes.

 

[surftree]

great work love your pictures its good to see profesinal tree work

 

[No_Bivy]

in the green room !!!!

 

[brendonv]

What did you use to pull those peices over into the tree? GRCS?

 

[RogerM]

On the first pic using the dwt and drift line (could be the angle of the pic) was the hinge and drift line on the inside of the wires? I love seeing knowledge applied. "we don't need no stinkin' crane"

 

[Mangoes]

Nice Tod, very nice.

 

[CleanupPro]

That is some of the finest rigging I have ever seen. Never thought of putting a block on the piece being lowered. How heavy did you estimate those pieces to be? Thanks for advancing the profession Todd!

 

[Colin]

[ QUOTE ]
Never thought of putting a block on the piece being lowered.

[/ QUOTE ]

I'm still trying to cypher that.

 

[CleanupPro]

I don't know if I am right but I think Todd was accomplishing one or both of two things.
1- increase the pull force applied to pull the piece over off the cut or
2-increase the holding capacity of the rope (reducing the holding force necessary at the ground)

I think this is the cleverest rigging I have seen.

 

[Mahk_Adams]

[ QUOTE ]
I don't know if I am right but I think Todd was accomplishing one or both of two things.
1- increase the pull force applied to pull the piece over off the cut or
2-increase the holding capacity of the rope (reducing the holding force necessary at the ground)

[/ QUOTE ]


Correct on both counts. It also decreases the force on the anchor point.

The only drawback is that the length of rope has to be at least 3X's the distance from the ground to anchor point.


[ QUOTE ]
I think this is the cleverest rigging I have seen.

[/ QUOTE ]


Todd's a rock star. A clever rock star.

 

[Jamin_Mayer]

Man, I can't believe they let the over hang go for that long.

Huge chunks of wood! Nice mechanical advantage for the picks & belayed drift line. Some people can be lazy and just let 'er go. You did a good job with keeping it under your control.

 

[tod_k]

That job required alot of work for the ground people so pulling those peices required 1 man on a grcs. The logs weighed around 2,000 lbs. each. The drift line was rigged into a portowrap tensioned with a 5 to 1. The fun part about those trees was that they were very stout, no defects. Most of the challenging work I have to do involves limitations with the trees. This was a rare job that I had to think about the equipment more than the trees. I have also found that when possiable it is more efffciant to set extra rigging and make fewer cuts. Those cuts were made out of an aerial lift probably took around 20 minutes for both cuts start to finish.