Isitezi esiphakanyisiwe (futhi iphansi eliphakanyisiwe, indawo yokungena), noma iphansi lekhompiyutha eliphakanyisiwe) linikeza indawo ephakeme enesakhiwo ngaphezu kwe-substrate eqinile (ngokuvamile i-slab kakhonkolo) ukuze kwakheke igebe elicashile lokudlula kwezinsizakalo zemishini nezikagesi.Izitezi eziphakeme zisetshenziswa kakhulu ezakhiweni zamahhovisi esimanje, nasezindaweni ezikhethekile njengezikhungo zokuyala, izikhungo zedatha yobuchwepheshe bolwazi kanye namagumbi ekhompyutha, lapho kunesidingo sokuhambisa izinkonzo zemishini nezintambo, izintambo, kanye nokuhlinzekwa kukagesi.[1]Iphansi elinjalo lingafakwa ngobude obuhlukahlukene ukusuka kumayintshi angu-2 (51 mm) ukuya phezulu ngaphezu kwamafidi angu-4 (1,200 mm) ukuze kuhambisane nezinsiza ezingahlaliswa ngaphansi.Ukwesekwa okwengeziwe kwesakhiwo kanye nokukhanyisa kuvame ukunikezwa lapho iphansi liphakanyiswa ngokwanele ukuze umuntu akhase noma ahambe ngaphansi.
Ngenhla ichaza lokho ngokomlando obekucatshangwa njengephansi eliphakanyisiwe futhi namanje kufeza injongo eyaklanyelwe yona ekuqaleni.Emashumini eminyaka kamuva, enye indlela yokuphakamisa iphansi yavela ukuze ilawule ukusatshalaliswa kwekhebula elingaphansi kohlu olubanzi lwezinhlelo zokusebenza lapho ukusatshalaliswa komoya ongaphansi kungasetshenziswa.Ngo-2009 isigaba esihlukile sesitezi esiphakanyisiwe sasungulwa yi-Construction Specifications Institute (CSI) kanye ne-Construction Specifications Canada (CSC) ukuze kuhlukaniswe izindlela ezifanayo, kodwa ezihluke kakhulu, zokubeka phansi phezulu.Kulokhu ithemu eliphakanyisiwe lihlanganisa iphansi lephrofayili yobude obugxilile bokufinyelela phansi.[3]Amahhovisi, amagumbi okufundela, amagumbi enkomfa, izindawo zokudayisa, iminyuziyamu, izitudiyo, nokunye, kunesidingo esiyinhloko sokwamukela izinguquko zobuchwepheshe ngokushesha futhi kalula nokucushwa kwepulani.Ukusatshalaliswa komoya ongaphansi akufakiwe kule ndlela njengoba i-plenum chamber ayidalwanga.Umehluko wobude obugxilile wephrofayela ephansi ubonisa ububanzi besistimu bobude obusuka phansi obungu-1.6 ukuya ku-2.75 amayintshi (41 kuya ku-70 mm);futhi amaphaneli aphansi akhiwe ngokusekelwa okubalulekile (hhayi izisekelo namaphaneli endabuko).Iziteshi zekhebula zifinyeleleka ngokuqondile ngaphansi kwamapuleti ekhava esisindo esikhanyayo.
Isikhathi sokuthumela: Dec-30-2020