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Browsing by Subject "horizontal borehole"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Analiza techniczna technologii wykonania przewiertu horyzontalnego pod rzeką Uszwicą w Brzesku Okocimiu
    (2005) Ziaja, Jan; Baniak, Krzysztof
    A horizontal borehole under the Uszwica River bed underwent a technical analysis. It was based on in situ analysies of mechanical parameters of drilling and laboratory tests of the collected samples. Mechanical parameters of drilling used in the project were assessed. The paper is closed with conclusions and recommendations for such drilling works to be done in the future.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Przegląd narzędzi wiercących stosowanych do wykonywania horyzontalnych przewiertów sterowanych
    (2005) Ziaja, Jan; Wiśniowski, Rafał
    The newest drilling tools used for HDD technology are presented in the paper. New designs and new applications of these tools for specific geological conditions are described. There has been no codification of such tools so far, therefore the authors suggested guidelines for tools classification for the purposes of horizontal drilling technology. They also formulated recommendations concerning technical decisions on drilling tools selection on the basis of their wear analysis.