{"id":20018,"date":"2022-11-29T15:43:11","date_gmt":"2022-11-29T14:43:11","guid":{"rendered":"https:\/\/arvengtraining.com\/?p=20018"},"modified":"2022-11-29T15:43:46","modified_gmt":"2022-11-29T14:43:46","slug":"buried-piping","status":"publish","type":"post","link":"https:\/\/arvengtraining.com\/en\/buried-piping\/","title":{"rendered":"Buried piping"},"content":{"rendered":"

Most industrial plants have some underground piping systems, in other words located below the standard elevation of the ground defined in the plant. In most cases, these piping systems are installed during the construction of the new plant, and are rarely thought about until a problem arises.<\/p>\n

An underground pipe<\/em> is not the same as a buried pipe<\/em>. Buried pipe is technically a subcategory of underground pipe. A buried pipe is defined as the pipe that is below ground level and in direct contact with it.<\/strong> Underground pipe is defined as pipe below the ground level that is not in direct contact with the soil. It is not accessed routinely and is normally located some distance from buildings and other plant facilities. It is usually contained within a concrete vault or trench.<\/p>\n

Buried systems range from those with a minimal effect on the safe operation of the plant, such as storm drains, to safety-related systems such as auxiliary water supply pipes used to supply water to steam generators in some nuclear power plants if the main feed water system is not available. Other important systems that are often underground include fire protection, water and air service, electrical systems, instrumentation, as well as the emergency fuel line for a diesel generator.<\/p>\n

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Installation of a pipe section in a trench.<\/em><\/p>\n

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The integrity of a buried pipe must be evaluated for the range of anticipated loads. There are the following types of buried pipes:<\/p>\n