CFA augers, ko Continuous Flight Augers, sune kayan aikin muhimmi da ake amfani da su a cikin gine-ginen tushe mai zurfi da injiniya na geotechnical, musamman a cikin shigar da piles na concrete ba tare da buƙatar casing ba. Waɗannan augers an tsara su don horar da zurfi a ƙasa yayin da suke safarar ƙasa da aka cire zuwa saman, lallai don aikin horarwa mai inganci. Tsarin musamman na CFA augers ya ƙunshi spiral flight mai ci gaba, wanda ke ba da damar safarar ƙasa mai ci gaba, wanda yake sa su ladan kirkirar boreholes a cikin yanayin ƙasa daban-daban.
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