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Trench rescue is a specialized form of rescue, a subset of confined space rescue. Trench rescue involves shoring up the sides of a trench , and digging a trapped worker out of a collapsed ditch. Trench rescue is one of the most dangerous rescue operations to complete.
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 vaults, storage silos, storage tanks, or sewers. A warning label on a storage tank, indicating that it is a confined space.
A box crib or cribbing is a temporary wooden structure used to support heavy objects during construction, relocation, vehicle extrication and urban search and rescue. It is commonly used to secure overturned motor vehicles, and debris within collapsed buildings. Cribbing is often used in conjunction with other stabilization equipment, such as ...
Technical rescue is the use of specialised tools and skills for rescue, including but not limited to confined space rescue, rope rescue, trench rescue, structural collapse rescue, ice rescue, swift water rescue, underwater rescue, and cave rescue.
The data set lists values for each of the variables, such as for example height and weight of an object, for each member of the data set. Data sets can also consist of a collection of documents or files. [2] In the open data discipline, data set is the unit to measure the information released in a public open data repository. The European data ...
Rescue company: Squad of firefighters trained and equipped to enter adverse conditions and rescue victims of an incident. Often delegated to a truck company. Often delegated to a truck company. Reset: Used variously, a specific technique to quickly knock down a fire from the exterior of a structure before standard offensive operations are ...
Examples of trench measurements then follow. The key properties of trench structures are trench depth, critical dimensions, plus profile (or sidewall angle). The term "critical dimension" is usually abbreviated as "CD". CDs signify widths of the trench at various levels inside the trench – top, middle, and bottom of trench.
The trench is at all times kept filled with slurry to prevent its collapse, but the fluid filling allows the excavation machinery and excavation spoil to be moved without hindrance. Once a particular depth of trench is reached, a reinforcing cage is lowered into the slurry-filled pit and the pit is filled with concrete from the bottom up using ...