Browsing by Author "Szelangiewicz, Tadeusz"

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Access status: Open Access ,
Eksploatacja złóż polimetalicznych konkrecji z dna oceanu
(Wydawnictwa AGH, 2011) Abramowski, Tomasz; Szelangiewicz, Tadeusz
Polymetallic nodules discovered in 19th century become the potential resources of the metal ore. Very large depths, the possibility of harsh weather conditions and long distances to the shore causes that the exploitation at industry scale becomes the technically difficult and expensive venture. In the paper several different concepts for nodule mining systems together with problems which have to be solved before exploitation were presented.
Access status: Open Access ,
Obciążenia i naprężenia w pionowym rurociągu podczas wydobywania polimetalicznych konkrecji z dna oceanu
(Wydawnictwa AGH, 2011) Żelazny, Katarzyna; Szelangiewicz, Tadeusz
One of the methods to obtain polimetallic nodules from the ocean bed is hydraulic - with the use of deep-well pumps. In this method a vertical deep-see mining pipeline 4.000-6.000 m long is suspended from a vessel. The pipeline is subjected to various loads and kinematic forcing, which results in tension out of pipeline. This paper presents the results of simulation tests of loads and tensions of vertical mining pipeline.
Access status: Open Access ,
Odkształcenia i zmiany położenia pionowego rurociągu podczas wydobywania polimetalicznych konkrecji z dna oceanu
(Wydawnictwa AGH, 2011) Żelazny, Katarzyna; Szelangiewicz, Tadeusz
One of the methods to obtain polimetallic nodules from the ocean bed is hydraulic - with the use of deep-well pumps. In this method a vertical deep-see mining pipeline 4.000-6.000 m long is suspended from a vessel. The pipeline is subjected to various loads and kinematic forcing, which out of shape deformations. This paper presents the results of simulation tests of shape deformations in deep-sea mining pipeline.