Soil nailing ƙirar ƙirar ƙasa ce inda ƙugiya na ƙarfe ko composite an ƙara su cikin ƙasa a ƙimar ƙima don ƙarfin ƙasa mara ƙarfi ko mara ƙarfi. Nailing elements wakilcin ƙungiyoyin ƙasa ne waɗanda aka kaddamar a matsayin ƙungiyar na'urar ƙasa - yawanci ƙugiya na ƙarfe ko ƙugiya waɗanda aka ƙwaba cikin ƙasa don ƙara ƙarfin ƙasa da kawar da motsi na ƙasa. Wannan ƙirar anfi amfani da ita sosai a cikin tabbatar da gefe, tabbatar da yankan, gina ƙarfin ƙasa, da kuma goyon bayan tunnel, musamman a yankunan inda ayyukan ƙasar ƙasar ko ƙarfin ƙasa ba su da amfani ko ba su da tattalin arziƙi. Ƙugiyoyin ke aiki ne ta hanyar ƙara ƙarfin ƙasa zuwa ƙarfin ƙasa mai ƙarfi a ƙasa, wanda ke haifar da ƙarfin ƙasa wanda ke ƙara ƙarfin ƙasa da ƙarfin ƙasa.
Nails na bar steel sun wakilci wani bangare na ƙarfin ƙarfi a cikin tsarin nailing na ƙasa, wanda ke aiki azaman wani bangare na ƙarfin ƙarfi a cikin ƙasa da ke da ƙarfi. Waɗannan fasteners na musamman sun ƙunshi steel bars na ƙarfi, wanda kuma ya kai daga 16 zuwa 32 millimeters a cikin diameter, wanda aka shigar da shi cikin buɗe-buɗen buɗe da aka gudanar da su ta hanyar grouting don kirkirar wani ƙarfin ƙasa da ke da ƙarfi. A cikin yanayin injiniyan kafa na zurfi da tsarin tsabtacewa na geotechnical, nails na bar steel suna bayar da ƙarfin ƙarfi na ƙarfi don bangon riƙe ƙasa na wucin gadi da na dindindin, tsabtacewa na gefe, da kuma goyon bayan hakar ƙasa. Tsarin shigarwa ya haɗa da gudanarwa na buɗe a cikin ƙasa ko kankara, shigar da bar steel, da kuma cika ɓangaren da ke da ƙarfi tare da grout don tabbatar da haɗin gwiwa tsakanin nail da ƙasa, wanda ya kirkiri wani abu na composite tare da ƙarfin jijiya da ƙarfin jijiya.
Nails na self-drilling, wanda aka fi sani da fasteners na SDA, sun wakilci wani sulhu na musamman na ƙarfin ƙasa a cikin nailing na ƙasa. Waɗannan elements na steel na thread suna aiki azaman tsarin gudanarwa da kuma tsarin anchoring, haɗe da tsarin ƙarfin ƙarfi tare da ikon yanke ko grinding a ƙarshen. Duk da nails na al'ada waɗanda ke buƙatar buɗe-buɗen buɗe, nails na self-drilling sun soke buƙatar kayan aikin gudanarwa na wucin gadi, suna saurin lokacin shigarwa a cikin yanayin ƙasa mara daɗi. Nomenclature na SDA ya nuna nails waɗanda aka tsara su tare da helical ko fluted patterns waɗanda ke ci gaba a cikin ƙasa yayin da suke kirkirar ƙarfin ƙarfi da ƙarfin ƙarfi. Wannan aikin na musamman ya sa nails na self-drilling su zama na musamman a cikin ayyukan inda ƙarfin ƙasa ya kasance mara ƙarfi, ko ta hanyar hakar ƙasa, ko hatsarin gefe, ko kuma ayyukan gini na ƙasa. Fasahar self-drilling ɗin ta ƙunshi ƙarfin ƙarfi na ƙarfi fiye da hanyoyin shigarwa na al'ada, saboda haɗin gwiwa na mechanic tsakanin geometry na nail da tsarin ƙasa an kirkiri shi a lokaci guda tare da gudanarwa.
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