DETERMINATION OF PARAMETERS OF A HOLE EXPANSION REAMER MOVING ALONG A CURVED PATH IN ROCK MASS
D. O. Cheshchin, B. B. Danilov
Chinakal Institute of Mining, Siberian Branch Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Управляемое бурение, криволинейые скважины, расширители, бестраншейные технологии, Directional drilling, curved wells, expansion reamer, trenchless technologies
Abstract
Calculations of the design parameters of auger-type hole expansion reamer for curved wells is presented. Relationships between the magnitude of soil deformation caused by the casing of expansion reamer and its length while moving along a curved path were found during mathematical modeling. The formula for determining the maximum length of the casing of expansion reamer, depending on its diameter and parameters of the steering unit was found.
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