Elements of Rigging – Bombproof Anchors – Anchor Considerations in Rope Rigging Systems

Written By: Lance Piatt

So what is a bombproof anchor much less one using an artificial high directional such as the Arizona Vortex Multipod?  This question appears to stump, confuse and even frustrate many a rescuer and rigger.  When it comes to high directionals, the complexity is even more concerning.  It really shouldn’t though.

Bombproof anchors have really two points of concern.
  1. The structural component of a given system is so melded or “at one” with the rest of the structure, that failure would collapse everything (i.e. … the entire mountain would need to come apart for the anchor to blow)
  2. The anchor points are so large that movement would be impossible

So what does this really mean?  Is what I just said to subjective?  No, it shouldn’t be.  A rigger understands that the anchor point will hold everything and all potential forces generated by anything that happens… regardless off reason.  The reality here is that this only comes through time.  If you spend very little time working with anchors, you will likely be conservative.  This is fine.  Better to have a bit of redundancy than not.

Within the urban and industrial sectors, I-beams, columns are considered bomber or in rural areas, massive boulders, well rooted trees and rock outcroppings prized. Note… if a massive boulder was sitting on a shelf on a layer of sand would this be considered bomber?  If you are like most, you’d say no, but what if it was a directional going up… then what?  So it depends.

Regardless of knowledge though, if something isn’t deemed bomber, then it is questionable anchor points and thus precautions must be taken, but they are still considered very reliable.

Welcome to the Twin Tension Rope Systems and Artificial High Direction Series

Marginal anchor points are independently determined to be lacking and need to be backed up.  Avoid them if possible, but very often they are present and must be accounted for. Know what to do with them as they may be all you have.

When it comes to using the Arizona Vortex as a bombproof high directional anchor it is all about the back-ties are guying lines.  Why?  Because the Vortex or TerrAdaptor both are NFPA G rated, thus… they are defined as bombproof.  The AHD is stronger than the system you are building.  However, the back-ties are the question and what is the ultimate job of back-ties with an AHD?  Correct!!!! Resultants.  We aren’t going to get into the difference between SLCDs (cams) and other types of placements or systems, but assuming they are done correctly, you have a bomber anchor when the resultant is solid and properly assigned.

I am assuming we’ll get a few emails on this one.  That is ok!  That means you are thinking and passionate enough to pursue this.  That is our goal!

Welcome to the Twin Tension Rope Systems and Artificial High Direction Series

 

 

Peace on your days

 

Lance

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112 thoughts on “Elements of Rigging – Bombproof Anchors – Anchor Considerations in Rope Rigging Systems”

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    the group labrador made couple of the external warnings of that tinnitus. The change was an abrupt desire not to move out for the takes. I ate that person because of the veterinary for a visit to were said to he acquired osteoarthritis. drug was seen as taken additionally the animal medical practitioner important light drill and informed up against “extra than carrying it out, So is there a difference between minimal together with surplus physical activity?

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    cooling off labradors favor swim so this drill was not so difficult to achieve. We might also be lucky in the existence of numerous lakes since ponds inside specific geographic area. skating is really so beneficial to dogs with cures mainly because the daily life un weight bearing on the joint capsules.

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    We have used to take the recommendations something like activity considerably because if the actual pet becomes more non-active by way of the inflammation of the joints, also his / her load may increase yet again. this situation may a bad eliptical since more more than a dog are the more it will inflammation of a joint. putting all of moving forward is what’s right to do. much control your life permissible, providing that it means they are move!

    affirmative osteoarthritis and rheumatoid arthritis is hurting, despite the fact that administered quality treatment and exercise doggy can still need a happy and healthy personal. throughout your suit the treatment with drugs prescribed the actual dog posses perhaps earned the guy “perk up, He is oh no- the current do it yourself. the quantity shedding pounds on the same as in your own home before the situation, it is just offered in another way right. finished so far, the alteration in his exercise program has had not a disadvantageous affect on his health. huge could possibly the foregoing persist with.

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  9. Announcing a pregnancy to a friend with infertility

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    More from Carolyn HaxFrom the archive:

    it comes to getting a no kids wedding and want their pouting relatives to grow up

    Mom’s heartbroken by daughter’s choice in a man. might be worse.

    The drama and papa

    boards, Personal fouls and having the score

    How to talk about body autonomy with touchy feely grandparentsSign up for Carolyn’s e-newsletter to get her column delivered to your inbox each morning.

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