Amathuluzi Okubhoboza eFlush/Air

Ukugqoka kanye nokubhola komoya kumiswa kwezindlela ezibalulekile embonini ye-micropiling kanye nezisekelo ezijulile, ikakhulukazi ekwenzeni imithombo yokubhola ethize ezimweni zejeoloji ezinzima lapho izindlela zokubhola ezijwayelekile zingase zingasebenzi. Lezi zindlela zokubhola zisebenzisa amathuluzi akhethekile okumbhola aklanyelwe ukuthuthukisa imithombo yokubhola ngasikhathi sinye nokukhipha impahla yokuphuma ngokusebenzisa ukujikeleza kwamanzi (ukugqoka) noma umoya uphushed (ukubhola komoya), kuvumela osemqoka ukuba basungule imithombo yokubhola eklanyisiwe futhi ehlala njalo ngokungaphazamiseki. Indlela yokugqoka/ukubhola komoya ibaluleke kakhulu emisebenzini ye-micropiling, lapho ukufakwa kwezimagagazi ezincane kudinga ukunembile kakhulu nokuphazamiseka komhlaba okuncane, okwenza lezi zixhobo zokubhola zibalulekile kubachwepheshe bezisekelo nabakhi abaphatha imisebenzi eyinkimbinkimbi ezindaweni ezixhaswe kakhulu noma ezindaweni ezinezimiso eziqinile zokuvikela ukunyakaza nomsindo. Ukuphathwa kwezobuchwepheshe kokugqoka nokubhola komoya kuhilela ukuthumela imishini yokubhola ekhethekile ehlelwe ngohlelo lokujikeleza kwamanzi okuphezulu noma izinhlelo zokulethwa komoya eziyiphumayo ezihlanganiswe phakathi komugqa wokubhola. Ukubhola komoya kuyasebenza kakhulu emhlabathini ophumayo, amat rocks ahlanzekile, kanye nemadamethi ephukile lapho ukujikeleza ngamanzi kuphela kungabangela ukoma ngokweqile noma ukuwa komthombo. Izinhlelo zokugqoka zisebenzisa amapompo angama-centrifugal ukukhulisa amanzi noma i-drilling fluid ngezinga elilawulwayo lok ضغط kanye nezilinganiso, zigcina ukuzinza kwemithombo yokubhola ngenkathi zifaka ama-cuttings phezulu emhlabeni ngendawo ye-annular. Lezi zindlela zivelele emhlabathini ogqokile, ama-sandy formations, nasezimo ezidinga ukuthuthuka kwembobo ngokushesha ngaphandle kokufaka izinto ze-chemical. Abakhi bakhetha phakathi kwezindlela lezi kuye ngohlobo lomhlabathi, izimo zamanzi phansi, ukuphakama kokubhola, ububanzi bemithombo yokubhola, kanye nezimo zemvelo. Amathuluzi okumbhola ngokwawo ahlanganisa ama-bits wokumbhola amabili, ama-stabilizers, kanye namabhari e-kelly aklanyelwe ukumelana ne-cyclic stress kanye nezimo zomhlaba ezithambile ngenkathi kugcinwa ukujula okuphelele kuyo yonke inqubo yokubhola. Izicelo zamathuluzi okugqoka kanye nokubhola komoya zifaka umehluko emisebenzini yephrojekthi ezinzima ezihlanganisa ukufakwa kwezimagagazi zokwakha ukugqugquzela, ukwakhiwa kwezisekelo zebhuloho, ukuvikeleka kwemawara eqinile, kanye nezinhlelo zokulungisa umhlaba. Lezi zindlela zibonakala zibalulekile emigodini ethile ephakeme, umhlaba ophakeme, noma amaform kwa-mashting alula, lapho ukubhola okujwayelekile okwakhiwe kuletsa ukumoshwa kwesinyathelo se-setaal steel kanye nobuqhaza bokusebenza obuphakeme. Ukuguquguquka kokugqoka nokubhola komoya kuvumela ukulungiswa kwezimo zejeoloji ezihlukahlukene ezihlangabezana nekuqhubekiswa kokubhola, kuvumela ukulungisa izindlela ngaleso sikhathi ngokuya nge-strata ethintwe. Imisebenzi yokwakha iyazuza kakhulu ekunciphiseni umthelela kwemvelo, ukukhiqiza umsindo ophansi uma kuqhathaniswa nebhola elipikethe, kanye nokuhambisana nezindawo ezithintekayo urban lapho imisebenzi yezezakhelo kufanele iqhubeke nalapho kukhona ukusungula. Kubachwepheshe be-geotechnical nabakhi bezisekelo, ukutshala kwi-brig ze-tool assembly ezifanele zesiphakamiso sokugqoka nokubhola komoya kuholela esinqumweni esisiza ukuphucula ukusebenza kwephrojekthi, uthuthukise ikhwalithi yemithombo yokubhola, futhi kuvumele ukufinyelela ezikhathini zokuhlola umhlaba ezazinzima ngaphambili emkhakheni wezisekelo ezijulile.