Izigaba ze-CFA auger zimelela izingxenye ezibalulekile zokubhoboza ngaphakathi kwendlela yokwakha izisekelo ezinzulu ye-continuous flight auger piling, zisebenza njengesitsha esiyisisekelo sokusika nokukhipha umhlabathi ekwakheni izisekelo ezinzulu. Lezi zingxenye ze-augers ezinemilomo emikhulu zenziwe ngokunembile ukuze zingene ezicini ezihlukene zomhlaba nezitini ngesikhathi ziphinde zisebenzise impahla ethathwe emhlabeni ibe phezulu ngesikhathi sokubhoboza. Izigaba ze-augers zakha umgudu oqhubekayo wokubhoboza ophenduka ngokumelana nomhlaba, ngezinhlelo zabo ezichwepheshile zepikiki ezihlose ukukhulisa ukunyakaza komhlaba nokugcina ukuzinza kokubhoboza. Izigaba ngazinye zixhunywe kahle kumasething ehlangene ngama-threa, kuvumela abaphathi ukuthi bandise ubunzima bokubhoboza kancane njengoba isisekelo sifinyelela ezingeni lakhe lokwakhiwa. Ikhwalithi nokunemba kokukhiqizwa kwezigaba ze-augers kuthinta ngqo ukusebenza kokubhoboza, ubuqotho bezikhukhula, kanye nempumelelo yonke ye-CFA pile installation, okwenza zibe izingxenye ezibalulekile kumabhizinisi asebenzayo ezimakethe ezinzulu zokwakha. Izigaba ze-CFA auger ziphumelela ezimweni zezindawo ezehlukene ezihlanganisa amapholisi ahlakaniphile nezinsibeni kuya kumhlabathi okhulu okuhlanganisa izihlabathi nezinsalela, nezinguquko ezikhethekile ezenziwe ukuze zisebenzise izitini ezibandayo kanye nemishini yokuhlanganiswa okubuthakathaka. Idizayini ye-continuous flight igcina ukuzinza komhlaba ebhodi ngokukhipha umhlaba ngaphandle kokudinga ikheshi yangaphandle ezimeni ezikhululekile, okuwenza kube yinzuzo ehlukile uma kuqhathaniswa nezindlela zokuhlanza ezisindisa noma ezidonsela phansi. Ububanzi be-augers ejwayelekile buphakathi kuka-300 mm kuya ku-1000 mm noma ngaphezulu, kanti ubude bezigaba bushintshekelwe ukuze kuthelwe kahle nokuxhumana okusheshayo ngesikhathi sokuqhuba. I-pitch ye-helical blade kanye nobubanzi be-core bwenziwa ukuze buhambisane nezimo zomhlaba nezimo zokubhoboza, kuvumela ukubhoboza okuphumelelayo ezindaweni ezingaphezu kuka-50 metres. Izicelo zokuthuthukisa umhlaba zivame ukusebenzisa izigaba ze-CFA auger lapho izisekelo ezinzulu zidinga ukungena ezindaweni ezithambile noma ezinzima, kuhlanganisa amapholisi agxilile, umhlaba ongenamphumela, kanye nezimo zomhlaba eziphakathi ezijwayelekile ezakhiweni zasemadolobheni nasezindaweni zokuthuthukisa ezimbonini. Ukwamukelwa kwemishini nokusebenza kwayo kusekelwe ezicini ezinembe ezimbhalweni ze-augers kanye nezinhlelo zokugcina ezimisiwe ngabakhi bokubhoboza kanye nabakhi bezisekelo. Izigaba ze-augers kufanele zixhumeke kahle nemishini yokubhoboza ephezulu, kuhlanganisa nohlelo lwe-top-drive, ama-kelly bars, nama-torque limiters, ukuqinisekisa ukudluliswa kwamandla okuvumelanayo nezinga lokuthuthuka kwemikhondo. Izinqubo zokufaka ze-CFA zisebenza ngokuqhubeka kokuhamba kwe-augers ngaphandle kokuphazamiseka ngesikhathi sokukhishwa, kuvumela izigaba ze-augers ukuthi zithathe umhlabathi ophakathi ngokuphumelelayo ngesikhathi umphumpi wokufaka uhamba phambili udlulisa i-concrete eqinile ngaphakathi emhlolanjeni. Abasebenzi abangochwepheshe bayazi ukuthi isimo sezigaba ze-augers sithinta ngokuqondile ukusebenza kokubhoboza, ikhwalithi yokufaka i-concrete, kanye nokusebenza kwe-pile yoyilo. Ukutshalwa kwezimali ekukhiqizweni kwezigaba ze-augers ezisezingeni eliphakeme, izinqubo zokuhlola ezijwayelekile, kanye nezimo zokugcina ezifanele kuholela emiphumeleni engabhalwa ngempumelelo ngezikhathi ezincane, ikhwalithi yokuveza ihlandla, kanye nokuthenjwa kwezinsiza zokwakha ze-geotechnical ezihlanganisa ukwakhiwa kwemizi emidala, izimpande zezimoto, nezinhlelo zokwakhiwa ezidinga izixazululo eziphezulu zokuhlanza umhlaba.
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