Repository logo

Browsing by Subject "engineering drilling"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Nowe technologie wiertnicze stosowane w wierceniach inżynieryjnych
    (2006) Wiśniowski, Rafał; Wójcik, Michał; Toczek, Michał
    The necessity to have reliable geotechnical data and also to modify the ground qualities has recently created conditions for modernization of old and development of new drilling techniques and technologies. The newest design and technological solutions used worldwide for rotary, rotary-percussion and percussion drilling condition their further development. Attention was paid to the comparison of frequently different technologies enabling drilling and concurrent tripping of pipes. On the basis of distribution of forces acting in the casing, strength conditions were established, thanks to which the physical and geometrical parameters of pipes can be selected.