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Trench Rescue
Trench rescue is a specialized form of rescue, a subset of confined space rescue. Trench rescue involves shoring up the sides of a trench A trench is a type of digging, excavation or depression in the ground that is generally deeper than it is wide (as opposed to a swale (landform), swale or a bar ditch), and narrow compared with its length (as opposed to a simple hole or trapping ..., and digging a trapped worker out of a collapsed ditch. Trench rescue is one of the most dangerous rescue operations to complete. References Rescue {{disaster-stub ...
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Rescue
Rescue comprises responsive operations that usually involve the saving of life, removal from danger, liberation from restraint, or the urgent treatment of injury, injuries after an incident. It may be facilitated by a range of tools and equipment necessary to deal with the specific circumstances. Rescues may be necessary in a wide range of circumstances and environments, and specialised procedures have been developed for many of these. A rescue may also be performed on an ad hoc basis by the people who are available on site, using equipment available on site or assembled from available materials, particularly when the rescue is urgent or it is unlikely that specialist assistance will be available within a reasonable time. First aid medical attention is often closely associated with rescue, and may be a necessary part of a rescue. Equipment used might include search and rescue dogs, mounted search and rescue horses, helicopters, the "Hydraulic rescue tools, jaws of life", and o ...
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Confined Space Rescue
Confined space rescue is a subset of technical rescue operations that involves the rescue and recovery of victims trapped in a confined space or in a place only accessible through confined spaces, such as underground Utility vault, vaults, storage silos, storage tanks, or sanitary sewer, sewers. Confined spaces are often narrow and constricting, preventing easy access by rescuers and making confined space rescues technically challenging. The spaces are usually unlit or poorly lit, requiring a light source to be provided. Confined spaces may contain hazardous materials in liquid or gas form, and oxygen may be limited. These hazards can be fatal as they create a limited window of time in which to perform a rescue. After four minutes without oxygen a person will usually suffer asphyxia causing brain damage or death. The urgent need to rescue someone from a confined space often leads to ill-prepared rescue attempts. Two-thirds of all deaths occurring in confined spaces are attributed ...
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Trench
A trench is a type of digging, excavation or depression in the ground that is generally deeper than it is wide (as opposed to a swale (landform), swale or a bar ditch), and narrow compared with its length (as opposed to a simple hole or trapping pit, pit). In geology, trenches result from erosion by rivers or by geological movement of tectonic plates. In civil engineering, trenches are often created to install underground utilities such as Pipeline transport, gas, Water distribution system, water, Underground power lines, power and Undergrounding, communication lines. In construction, trenches are dug for foundations of buildings, retaining walls and dams, and for Tunnel construction#Cut-and-cover, cut-and-cover construction of tunnels. In archaeology, the "trench method" is used for searching and Excavation (archaeology), excavating ancient ruins or to dig into stratum, strata of sedimented material. In geotechnical engineering, trench investigations locate faults and investigat ...
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