Browsing by Subject "pipes"

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Access status: Open Access ,
Selected test methods for pipes and manholes used in mining areas
(Wydawnictwa AGH, 2020) Pacześniowski, Krzysztof; Kalisz, Piotr Józef
As a result of underground deposit extraction, the pipes and manholes that constitute the basic elements of sewage systems are subjected to the influence of near-surface soil layer deformations at the place of their installation. For this reason, these elements intended for the construction of sewage systems in mining areas must fulfil special requirements related to the occurrence of additional loads and displacements. This article presents the pipe and manhole test methods developed at the Central Mining Institute, with a particular focus on elements of large sizes. The results of these tests are applied to assess the suitability of pipes and manholes for use in mining areas.
Access status: Open Access ,
Wiertnicze wyroby rurowe ze stopów aluminium
(2007) Artymiuk, Jan
Pipe products and their connections constitute the most significant group of products oil industry, as the success and safety of exploration and exploitation depends on them. The transport of hydrocarbons greatly depends on these products. Pipes and connections have a variety of shapes and design. This especially applies to the connections and subs. In a majority of cases this is steel of various strength and chemical properties. The low resistivity to corrosion and considerable weight are the main disadvantages of steel products. Researches are made on finding new materials which would substitute the traditional steel pipe products. Pipes made of aluminum alloys reveal good results. The pipe products made of aluminum alloys and their applicability for exploration and exploitation works are discussed in the paper.