Ishafu eyodwa ejikayo yokuxuba umhlabathi ojulile

I-rotary deep soil mixing ye-shaft eyodwa imele indlela ethuthukisiwe yokwenza ngcono umhlaba eqhuba izinhlelo ze-rotating auger ukuze ihlanganise umhlaba onendawo ngomshini nezinto ezisizayo ezijulile, ngokuvamile zifika ku-20 kuya ku-40 amamitha ngaphansi komhlaba. Le ndlela ekhethekile yokwakha izisekelo eziyinqaba isebenzisa i-shaft e-rotary eyodwa enezinjongo ze-helical ukuze idale ingxube ehlanganisiwe yomhlaba wendawo kanye nezibopho ze-cementitious, izengezo ze-polymeric, noma ezinye izinto ezizothuthukisa. Le nqubo ibandakanya ukujika okuqhubekayo kwe-auger ngesikhathi sokukhipha, kuqinisekiswa ukusatshalaliswa okuvumelanayo kwezinto zokwelapha throughout lonke ubude. Izinhlelo ze-shaft eyodwa zibalulekile ngokuqondile ekulawuleni ubude, amandla aphezulu okujwayela ukukhetha indawo, kanye nokusebenza kahle ekufinyeleleni ezindaweni zomsebenzi ezinamakhono anqunyelwe lapho izinkinga ze-geometry zingavimbela ukusetshenziswa kwezithuthi ze-shaft eziningi. Le tekinoloji ibalulekile ekwakheni izindawo ezithuthukisiwe zokuphatha, ukunciphisa izinkulu ezimbili, kanye nokuthuthukisa izakhiwo zomhlaba ezimweni ezinzima ze-geotechnical. Indlela yokusebenza ye-rotary deep soil mixing ye-shaft eyodwa ibandakanya ukufaka i-auger kubude obufanele ngenkathi ukufaka izinto ezibamba zokwakha nge-shaft e-rotating. Izinga lokujika ngokuvamile liqhakanciswa ukusuka ku-15 kuya ku-60 ukujika ngomzuzu, kanti izinga lokungena kubude kulawulwa ukuze kuqinisekiswe ukuhlanganiswa okuphelele nokufakwa okufanele kwe-binder. Izinsiza ezisetshenziselwa le nqubo zifaka izithuthi ezikhethekile zokuhlanganisa umhlaba ezimaphakathi eziningi ezakhiwe kumakharavhisi aphakathi noma abeziwindi, izinhlelo ze-auger ezine-flange ehlukahlukene ezivela ku-600 millimitha kuya ku-1,200 millimitha, amapompo wokufaka anokwakhiwa okuvamile, kanye nezinqubo zokubheka ubude ez precise. Lezi zifundo zakhiwe ukuze zikwazi ukuphatha ukusuka okuqondile okukhulu kanye namandla aphezulu e-vertical angokwemvelo (torsion) ezisebenzelana ne-deep mixing operations, nezinhlelo zamanje zifaka i-GPS yokukhipha izikhala kanye nokuqoshwa kwedatha okwenziwa ngesikhathi sangempela ukuze kuthuthukiswe ukuqinisekiswa kwekhwalithi. Ukuhleleka kwe-shaft eyodwa kuvumela ukulawula okuhle kwe-rotation ye-auger kanye nezinyathelo ezivamile, kuvumela abaphathi ukuba bagcine ukungathembeki okuqondile nokubamba izinguquko ezincane ngesikhathi sokufaka. I-rotary deep soil mixing ye-shaft eyodwa isetshenziswa kakhulu ezindaweni ezinyamalala, izimo ezithintwa kalula, umhlaba ophakeme, kanye nezindawo eziyicufile lapho izixazululo zokwakha ezivamile zingabi yizindleko eziphusile noma zihluleka ngezobuchwepheshe. Izicelo ezivamile zihlanganisa izisekelo ezithuthukisiwe zokuphatha izakhiwo zezentengiselwano, ukuvumelanisa i-embankment eduze kwezindawo zamanzi, ukunciphisa amathuba okucasulwa ezindaweni ze-seismic, ukwesekwa kwamathayi aphansi emithanjeni, ukulungiswa kokukhipha imizila ngaphambi kokudiliza, kanye nokuphathwa kwezindawo ezilimele zomhlaba. Le ndlela ikhululekile ezinhlelweni zokwakha ezinzima ezifuna ama-pile amade amadala, ukufaka izikhangiso, noma ukwakha izigaba eziningi ezingaphansi kwezimo zomhlaba. Iziphakamiso zokwakha ezindaweni zomphakathi zithola inzuzo enkulu kakhulu ekunciphiseni ukuphazamiseka nokwakhiwa kwezithako zomhlaba eyenziwe ngokuqhathaniswa nezindlela zokufaka ama-pile ezivamile noma ezokwandisa. Izinsika zomhlaba ezithuthukisiwe ezidalwe yi-rotary mixing ye-shaft eyodwa zinikela ngokuqinile, okuphakeme kokutholakala kolwazi ngesikhathi sibuza uma zigcina ukuxhunyaniswa komhlaba nokugwema ukuntuleka okuhlelekile okuphathelene nezinqubo ezinezithiyo zenqubo, kwenza le ndlela ikhululeke kakhulu emikhakheni ye-geotechnical kanye nezokwakha for izidingo ezinzima zokwakha izisekelo.