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Technical and Educational Articles
This page includes archived articles from the Rescue Response Gear Newsletter as well as other timely and educational informationals. Topics are generally centered around rope rescue and rope access rigging, rope construction, mechanical advantage systems, the physics behind rigging, critical thinking, central and peripheral issues in rescue, team management, safety considerations for accessing work via rope and many others.
If there is anything specific you would like to see included in future Newsletters or this section (TEA), write us at info@rescueresponse.com and let us know. |
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Getting Ready For Traumatic C-Spine Injury (pdf)
Click on article title (above) to open full article.
The call came in early morning to the Rescue Response Team: “EMS has requested an assist to evacuate a girl who has fallen part way down a cliff. We don’t know how far she has fallen, but let’s get ready for a traumatic C-spine injury and make sure we have the litter ready.”
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Technical Articles | Pulleys & Systems for Rescue & Industrial Rope Access
The following is meant only as an introduction to an informational about pulleys and mechanical advantage systems. Victims in the field of rescue often times find themselves stranded somewhere well above head level on cliffs, mountains, bridges, buildings and other structures. The obvious challenge of importance to the rescue attempt is the need to get the victim down. Any ultimate benefit from the rescue maneuver hinges upon this one factor. Without success here there is no success and there is no rescue.
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Technical Articles | Anchors, Pt. 1
by Lance Piatt
This will be the first of a two part series on anchors. This section, purposely, will not include situations that necessitate vehicles, pickets or other such portable anchors. Nor is the series meant to be an exhaustive source of information… there are numerous books on this subject. If you have any questions regarding the below information, please feel free to contact RRG.
(Excerpts taken from “Rigging in the Vertical Realm, Thorne and Rhodes; The North American Working at Height Handbook 2004, North Sea Lifting Ltd.)
Considerations in building an anchor
Anchors are truly the most important aspect or component of any system when used to lift, perform work or rescue someone. Without a solid base or foundation, the entire project is in jeopardy. Whether you’re dealing with natural or artificial components for the anchor system, take special care and make sure the integrity and strength of the component is not in question. In times of question, backups, opposition or back-ties must be employed (this will be discussed later). In building an anchor system, it is best to keep the line of pull directly “above” (or fall line) the load. When this is not doable, using advanced placement skills to focus the main direction of the anchor to viable position will be needed (such as re-directs).
Continued in the full article..
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Technical Articles - Anchors, Pt. 2
by Lance Piatt
This is the second of a two part series on anchors -- the first part is available here. This article will intentionally omit situations which necessitate vehicles, pickets or other such portable anchors. Nor is the series meant to be an exhaustive source of information… there are numerous books on this subject. If you have any questions regarding the below information, please feel free to contact RRG.
(Excerpts taken from "Rigging in the Vertical Realm" - Thorne and Rhodes; "The North American Working at Height Handbook 2004" - North Sea Lifting Ltd.; "The Tree Climbers Companion, 2nd Edition Revised and Expanded" - Jeff Jepson) Fixed Multi-point (Load Sharing) Versus Distributing (Self-Equalizing) Anchors
The debate over multi-point/load sharing (MPLS) and that of distributing (self-equalizing) DSE anchors is one of focus and elevation (high directional). The debate may have quieted down a bit over the years, mainly due to many "anchor" policies within the guide service, rope access and rescue teams... never the less, the problem -- and thus confusion -- is still there. Continued in the full article..
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Technical - An Introduction to Jiggers
by Lance Piatt
The following information is meant only as an informational introduction to the loveable jigger system.
Jiggers
Generally, these beauties are considered pre-rigged pulley systems used mainly for hauling, but can be very
important in lowering heavy loads as well. The advantage of these systems is in their rapid deployment,
and straightforward operation without advanced levels of training or expertise. They are low maintenance and high yield work horses and have been around for many a year.
From old (and new) time mariners, to arborists, to rescuers, to the backyard working guy (or gal), jiggers have much to offer. An obvious application in industrial height safety, is lifting the weight of a fallen worker so that he can be transferred to a lowering rope. Arborists use many a jigger (fiddle blocks) for raising and pre-tensioning heavy loads. General riggers can apply these gems in hundreds of other manners (from pulling to maintaining).
Read the complete article...
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Technical Articles | Rope Grabs
by Lance Piatt
The strength, purpose and performance of rope grabs differ depending on the user and situations with which the actual unit is being used in. Many times we see strength ratings such as 2,500 lbs/11.5 kN, 5,400 lbs/24.5 kN or even 7,500 lbs/34 kN; yet the rope damage may actually occur as low as 2,000 lbs/9 kN. Are we measuring the strength of the grab itself or the unit capacity to carry a load? What is this load and is it a static pull or a dynamic catch? Grabs are not marked with a minimum breaking standard; there is no suitable test method for determining a valid or usable breaking strength.
Continued in the full article.. Click the link above to read more.
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Technical - Reducing Rock Fall Hazard in Mine Rescue
by Reed Thorne
INTRODUCTION:
To many people, rescue from elevated, sometimes vertical, locations brings about thoughts of heroism mixed with brawn and self-sacrifice. Most of us can certainly conjure up images of harrowing cliff rescues where the entire technical effort is hanging from a few seemingly small nylon ropes hundreds of feet above the ground. Such is the vertical realm of technical rope rescue—a vast technical field of which I am an instructor of—both professionally, and as Battalion Chief of (rope) Operations for a northern Arizona Fire District.
Click the link above to read the full article
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Technical - Practical Leadership for Technical Rescue
by Kevin Frye
Author’s note: This will be the first of a multi-part article. More will addressed in following RRG newsletters.
One of the most overlooked aspects of rope rescue is the ability to efficiently direct and control and a rescue operation. As the Control Officer, we all too often focus on the tactical, or “nuts and bolts” instead of the strategic, or “big picture”. Many times a 30 minute rescue operation turns into a two hour debacle mostly due to lack of leadership and direction. As a leader responsible for technical rescue operations, you need to be able to communicate to your team members the goals and objectives of the event, (be it an actual rescue or a training exercise), and then safely complete the operation. This is a difficult task given the dynamic arena in which we often operate. The responsibilities associated with these functions usually comes with rank, but without the benefit of education and mentorship. The attributes required for running an operation must be learned and practiced in order to complete a job in a safe and timely manner. In the following sections, we will address key elements relating to the proper operation of a Technical Rescue incident or training evolution. Continued in the full article..
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