Piles na screw, wanda kuma ake waɗanda helical piles ko helical screw foundations, ƙoƙarin ƙarfe ne waɗanda aka ƙawata da ɗaya ko fiye da helical plates (flights) waɗanda ke aiki kama auger lokacin da aka juyawa cikin ƙasa. Waɗannan matakai na foundation sun haɗu da ka'idojin tsarin na tsarin pile tare da saurin sabunta na na'urorin mechanical screw-in. Tsarin helical ya sake watsa ƙasa na gefe lokacin da axis ya juya, ya koma ya ƙunsa kusa da helix kuma ya ƙirƙiri ƙarfin ɗaukar nauyi ta hanyar hanyoyin end-bearing da skin friction. Wanda aka yi yawanci daga ƙoƙarin ƙarfe na darajar girma tare da helical plates masu aro ko masu ƙoƙari, piles na screw suna nuna ƙarfin ɗaukar nauyi, ƙarancin haɗari na zobo (idan aka galfanasa), da rarraba ƙarfin ɗaukar nauyi, wanda ya sa su mai dadi ga yanayin geotechnical masu ƙalubale inda traditional driven ko bored piles suna da ƙuntatawa ko ƙuntatawa na sauti.
Piles na screw, wanda kuma ake waɗanda helical piles ko helical screw foundations, ƙoƙarin ƙarfe ne waɗanda aka ƙawata da ɗaya ko fiye da helical plates (flights) waɗanda ke aiki kama auger lokacin da aka juyawa cikin ƙasa. Waɗannan matakai na foundation sun haɗu da ka'idojin tsarin na tsarin pile tare da saurin sabunta na na'urorin mechanical screw-in. Tsarin helical ya sake watsa ƙasa na gefe lokacin da axis ya juya, ya koma ya ƙunsa kusa da helix kuma ya ƙirƙiri ƙarfin ɗaukar nauyi ta hanyar hanyoyin end-bearing da skin friction. Wanda aka yi yawanci daga ƙoƙarin ƙarfe na darajar girma tare da helical plates masu aro ko masu ƙoƙari, piles na screw suna nuna ƙarfin ɗaukar nauyi, ƙarancin haɗari na zobo (idan aka galfanasa), da rarraba ƙarfin ɗaukar nauyi, wanda ya sa su mai dadi ga yanayin geotechnical masu ƙalubale inda traditional driven ko bored piles suna da ƙuntatawa ko ƙuntatawa na sauti.
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