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Cave Rescue is a highly specialized field of wilderness rescue in which injured, trapped or lost cave explorers are medically treated and extracted from various cave environments.
Cave rescue borrows from elements from firefighting, confined space rescue, rope rescue and mountaineering techniques but has also developed its own special techniques and skills for performing work in conditions that are almost always difficult and demanding. Since cave accidents, on an absolute scale, are a very limited form of incident, and cave rescue is a very specialized skill, normal emergency staff are rarely employed in the underground elements of the rescue. Instead, this is usually undertaken by other experienced cavers who undergo regular training through their organizations and are called up at need.
Cave rescues are slow, deliberate operations that require both a high level of organized teamwork and good communications. The extremes of the cave environment (air temperature, water, vertical depth) dictate every aspect of a cave rescue. Therefore the rescuers must adapt skills and techniques that are as dynamic as the environment they must operate in.
Organized Cave Rescue Units in the United States are generally city/county funded volunteer squads, comprised mainly of seasoned, local cavers. The typical Southeastern U.S. cave rescue team averages between 15 and 20 active members. Due to the excessive amount of manpower required on a large scale cave rescue, it is not uncommon for multiple cave rescue units from various regions to assist another in extensive underground operations. Because organized cave rescue teams are quite rare, it is also quite common for local units to cover regions that extend far beyond their agencies jurisdiction. The number of cave rescues in North America are relatively small compared to other common wilderness rescues. The average number of reported cave related incidents is usually 40 to 50 per year. In most years approximately 10 percent of reported accidents result in death.[1]
In the United States, the leading cave rescue training curriculum is developed and deployed by the National Cave Rescue Commission(NCRC), which operates as part of the National Speleological Society (NSS). The NCRC is not an operational cave rescue unit, but the organization is comprised of members of regional rescue squads.
Outside of the US exists a network of international cave rescue units under the banner of the Union Internationale de Spéléologie (UIS) - Cave Rescue Commission. Most international cave rescue units such as the New South Wales Cave Rescue Squad based in Sydney, Australia are listed with contacts in the event of a cave incident.
In the United States
Organized Cave Rescue Teams generally utilize the Incident Command System. Originally devised for wildland fire teams, today the ICS is used by a variety of agencies throughout North America. The ICS can be modified by each agency depending on the nature of their emergencies. Below is an example of a typical cave rescue Incident Command System.[8]
Members of the Chattanooga/Hamilton County Cave Team haul a patient from the 50 foot deep entrance pit of Pryor Springs Cave using a guiding line
Members of the Chattanooga/Hamilton County Cave Team haul a patient from the 50 foot deep entrance pit of Pryor Springs Cave using a guiding line
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* Incident Commander - is responsible for all activities, including the development and implementation of strategic decisions during the course of an incident. The IC monitors all aspects of an operation including planning, logistics, communications and information.
* Underground Manager - is usually responsible for the implementation the plan provided by the incident commander. The underground manager assigns and monitors vital tasks including rigging, medical, patient packaging and transport, and communications with the IC on the surface. The underground manager is also usually responsible for the safety of the entire underground team.
* Initial Response Team - is a small unit of 1st responders. The task of the IRT team is to travel through the cave to the patient and evaluate the situation with the purpose of reporting back to the appropriate manager. The IRT team usually includes the medical personnel so medical intervention can begin early if necessary.
* Medical Team - varies in size and level of the medics ability from agency to agency. The medical team rarely participates in any other rescue function other than managing patient care.
* Communications Team - are responsible for creating and maintaining communications between the teams in the cave and the Incident Commander. A common means of communications on a cave rescue are military field phones. Military phones are reliable but heavy, and the need for abundant amounts of com-line can make running communications deep into a cave difficult. Another, more advanced type of communication, are low frequency radios, which eliminate the need for thousands of feet of com line in a cave. Low frequency radios can communicate through thousands of feet of solid rock, making them ideal for use deep into caves.
* Rigging Team - are responsible for one or more stations in a cave that require the rigging of ropes or systems to safely transport the patient and emergency personnel through the cave. In a large scale rescue, many rigging teams could be scattered throughout a cave, assigned with multiple tasks.
* Litter Team - is made up of rescue personnel that are not already assigned to rigging, communications, medical or management positions. The responsibility of the Litter Team is the packaging and safe transport of the patient through the cave.
* Entrance Control - is responsible for the logging of all personnel entering and leaving a cave. In some cases the Entrance Control could also be assigned the duty of logging all gear entering and leaving the cave. This is an important task on any cave rescue.
Tampilkan postingan dengan label caving. Tampilkan semua postingan
Tampilkan postingan dengan label caving. Tampilkan semua postingan
Jumat, 07 Desember 2007
Caving's naming issues
Clay Perry — an American caver of the 1940s — wrote about a group of men and boys who explored and studied caves throughout New England. This group referred to themselves as spelunkers. This is regarded as the first use of the word in the Americas. Throughout the 1950s, spelunking was the general term used for exploring caves in US English. It was used freely, without any positive or negative connotations, although only rarely outside the US.
In the 1960s, the term "spelunking" began to convey the idea of inexperienced cavers, using unreliable light sources and cotton clothing. In 1985, Steve Knutson (editor of American Caving Accidents) made the following distinction:
"...Note that I use the term 'spelunker' to denote someone untrained and unknowledgeable in current exploration techniques, and 'caver' for those who are."
This sentiment is exemplified by bumper stickers and t-shirts displayed by many cavers: "Cavers rescue spelunkers".
Potholing refers to the act of exploring potholes, a word originating in the north of England for predominantly vertical caves. The term is often used as a synonym for caving, and outside the caving world there is a general impression that potholing is a more "extreme" version of caving.
In the 1960s, the term "spelunking" began to convey the idea of inexperienced cavers, using unreliable light sources and cotton clothing. In 1985, Steve Knutson (editor of American Caving Accidents) made the following distinction:
"...Note that I use the term 'spelunker' to denote someone untrained and unknowledgeable in current exploration techniques, and 'caver' for those who are."
This sentiment is exemplified by bumper stickers and t-shirts displayed by many cavers: "Cavers rescue spelunkers".
Potholing refers to the act of exploring potholes, a word originating in the north of England for predominantly vertical caves. The term is often used as a synonym for caving, and outside the caving world there is a general impression that potholing is a more "extreme" version of caving.
Caving
The challenges of the sport depend on the cave being visited, but often include the negotiation of pitches, squeezes, and water (though actual cave diving is a separate sub-specialty undertaken only by very few cavers). Climbing or crawling is often necessary, and ropes are used extensively for safety of the negotiation of particularly steep or slippery passages.
Caving is often undertaken for the enjoyment of the activity or for physical exercise, as well as original exploration, similar to mountaineering or diving. Physical or biological science is also an important goal for some cavers. Virgin cave systems comprise some of the last unexplored regions on Earth and much effort is put into trying to locate and enter them. In well-explored regions (such as most first-world countries), the most accessible caves have already been explored, and gaining access to new caves often requires digging or diving.
Caves have been explored out of necessity (for shelter from the elements or from enemies), out of curiosity or for mystical reasons for thousands of years. However, only in the last century or two has the activity developed into a sophisticated, athletic pastime. In recent decades caving has changed considerably due to the availability of modern protective wear and equipment. It has recently come to be known as an "extreme sport" by some (though not commonly considered as such by its practitioners, who may dislike the term for its perceived connotation of disregard for safety).
Many of the skills of caving can also be used in the nature activities of mine exploration and urban exploration.
Caving is often undertaken for the enjoyment of the activity or for physical exercise, as well as original exploration, similar to mountaineering or diving. Physical or biological science is also an important goal for some cavers. Virgin cave systems comprise some of the last unexplored regions on Earth and much effort is put into trying to locate and enter them. In well-explored regions (such as most first-world countries), the most accessible caves have already been explored, and gaining access to new caves often requires digging or diving.
Caves have been explored out of necessity (for shelter from the elements or from enemies), out of curiosity or for mystical reasons for thousands of years. However, only in the last century or two has the activity developed into a sophisticated, athletic pastime. In recent decades caving has changed considerably due to the availability of modern protective wear and equipment. It has recently come to be known as an "extreme sport" by some (though not commonly considered as such by its practitioners, who may dislike the term for its perceived connotation of disregard for safety).
Many of the skills of caving can also be used in the nature activities of mine exploration and urban exploration.
Senin, 26 November 2007
Harnesses
Harnesses
A harness is used for attaching a rope to a person. The majority of harnesses used in climbing are worn around the pelvis, although other types may be seen occasionally, such as chest and full body versions.
Different types of climbing warrant particular features for harnesses. Sport climbers typically use minimalistic harnesses, some with sewn-on gear loops. Alpine climbers will choose lightweight harnesses, perhaps with detachable leg loops. Big wall climbers prefer lots of padding. There are also full body harnesses for children, whose pelvis bones are not wide enough to be safely held inverted by a sit harness. Some climbers use full body harnesses when there is a chance of inverting, or when carrying a heavy bag. There are also chest harnesses, which are used only in combination with a sit harness; this combination provides the same advantages as a full body harness. However, test results from UIAA show that chest harnesses can put more impact on the neck than sit harnesses, making them slightly more dangerous to use.
Apart from these harnesses, there are also caving and canyoning harnesses, which all serve different purposes. For example, a caving harness is made of tough waterproof and unpadded material, with dual attatchment points. Releasing the carabiner from these attatchment points would loosen the harness quickly.
Canyoning harnesses are somewhat like climbing harnesses, often without the padding, but with a seat protector, making it more comfortable to rappel. These usually have a single attatchment point of Dyneema.
A harness is used for attaching a rope to a person. The majority of harnesses used in climbing are worn around the pelvis, although other types may be seen occasionally, such as chest and full body versions.
Different types of climbing warrant particular features for harnesses. Sport climbers typically use minimalistic harnesses, some with sewn-on gear loops. Alpine climbers will choose lightweight harnesses, perhaps with detachable leg loops. Big wall climbers prefer lots of padding. There are also full body harnesses for children, whose pelvis bones are not wide enough to be safely held inverted by a sit harness. Some climbers use full body harnesses when there is a chance of inverting, or when carrying a heavy bag. There are also chest harnesses, which are used only in combination with a sit harness; this combination provides the same advantages as a full body harness. However, test results from UIAA show that chest harnesses can put more impact on the neck than sit harnesses, making them slightly more dangerous to use.
Apart from these harnesses, there are also caving and canyoning harnesses, which all serve different purposes. For example, a caving harness is made of tough waterproof and unpadded material, with dual attatchment points. Releasing the carabiner from these attatchment points would loosen the harness quickly.
Canyoning harnesses are somewhat like climbing harnesses, often without the padding, but with a seat protector, making it more comfortable to rappel. These usually have a single attatchment point of Dyneema.
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