Amathuluzi Okubhoboza

Ama-bit wokubhoboza abalulekile njengemishini yokusika ezinhlanganweni zokudrill, aklanyelwe ukuhlinzeka ngezikhala ezinqandeni ezicacile emathonjeni aphakeme nasemhlabathini ukuze kufakwe ama-anchora omhlaba, ama-anchora edwala, kanye nama-anchora emhlabathini. Le mishini ethile iyingxenye ebalulekile yezinhlelo zokwakha izisekelo ezijulile nokuthuthukiswa komhlaba lapho kudingeka ama-anchora aqinile noma alondolozwe ukuze kuqinisekiswe ukuzinza kwezinhlelo, kuvinjelwe ukuwa komgoqo, noma kuhanjiswe ukweseka okufanayo. Emkhakheni wezeMvelo, ama-bit wokubhoboza ama-anchora kufanele ahlale phansi ezithwaleni ezinzima nasemazingeni omhlaba ahlukahlukene ngenkathi kugcinwa izilinganiso zokukhipha zakho ezicacile, okuyisisekelo ekufezeni ukuhlinzekwa kokubopha ama-anchora nokukwazi ukudlulisa izinsiza. Ukukhetha ama-bit afanele kuncike ezimweni zomhlaba, uhlobo lwe-anchora, kanye nezidingo zokuphakama kokubhoboza. Emhlabeni othambile nasemathanjeni e-clay, ama-bit e-auger nama-bit e-spade athuthukisa ukuhlinzeka ngokushesha ngokubhoboza ngaphandle kokuphazamiseka okwengeziwe, kuyilapho emathanjeni anzima afaka i-limestone, i-sandstone, ne-granite, ama-bit e-roller cone kanye nama-bit e-core anikezela ngezinga eliphezulu lokungena nokuphila komhlaba. Ukuhlinzwa kwama-anchora kuvamise ukwenza izindlela zokubhoboza eziphindwe kabili, ukubhoboza kwe-percussion, kanye nezindlela ezihlanganisiwe zokuphindisela-percussion ukuze kuhlangabezane nemingcele eyahlukene ye-geological ebhalwe emsebenzini wezisekelo. Ama-bit akhethekile afaka ama-bit e-compression-flange ezindaweni ezingazinzile, ama-DTH (down-the-hole) bits ukuze kubhobozwe emaphuzini aphezulu ngokubambana, kanye nama-bit anama-diamond aphephile ukuze kube nemikhiqizo ye-mineral ephukile. Imishini yokubhoboza uqobo—noma ikuphi emakhasini, izikhungo ezigijimayo, noma izinhlelo zokuthola ama-anchora—kufanele kube kuhle ukuze kuhlanganiswe nezincazelo zamaholo ezikhethiwe ukuqinisekisa ukufakwa okukhululekile, okusebenza kahle. Izinhlelo zokubhoboza ama-anchora zifaka ezihlukahlukene ezinsizakalweni ze-design. Ekwakhiweni kwezinqobo nokugcinwa kwemigoqo, ama-anchora emgodla avimbela ukuwa kwezikhathi emizileni ephezulu nasemigqeni evulekile emanzini. Ekukhishweni ngaphansi komhlaba kanye nokwakhiwa kwamathunongo, ama-anchora adlalisa indima yokwesekwa ngesikhathi sokukhishwa kanye nokuzinza kwezindleko okuthile. Izakhiwo eziphakeme kanye nezisekelo zamabhuloho zisebenzisa ama-anchora amakhanda ukuze kukhuthazwe ukuhamba kwemoya nokuzinza kwe-seismic. Izigaba zokuthuthukisa umhlaba zifaka ama-micro-anchora ekuhlinzekeni, ukuqhubekisela phambili seismically, kanye nokuxhaswa komhlabathi ezindaweni lapho ukwakha ama-piling ajulile kungafanelekile ngenxa yokuphazamiseka kwezindawo noma izimo zomhlaba. Izicelo zokumbiwa nokuphakathi zidinga ubuchwepheshe bokubhoboza ama-anchora ukuze kuhlanganiswe imishini nezisekelo ekuqinisekiseni izimo eziyinkimbinkimbi. Ukuze kube nempumelelo kokubhoboza ama-anchora kuncike ekuqondeni isayensi yomhlabathi, izimo zamanzi omhlaba, kanye nokuhlukaniswa kwezinsika zemagetsi. Izinkampani kufanele zihlola izinhlobo zomhlabathi, izinzuzo ezihlobene, kanye nokuphila kokuphakama ukuze kutholakale ukukhetha okuhle kwama-bit, ijubane lokubhoboza, futhi kukhuphule ingcindezi yokufaka. Ama-bit wekhwalithi avela kubakhiqizi abaziwayo aqinisekisa ubukhulu obuphumelelayo bemigudu, ukudambisa isikhathi sokuphumula, futhi kuthuthukise ukusebenza kwe-anchora, ekugcineni kwehlisa izindleko zomsebenzi nasekuthuthukiseni ukwakha. Ukuhlanganiswa kwezobuchwepheshe bokubhoboza obuphambili nokukhetha okuhle kwama-bit kwenza kube nezingqikithi ezithembekile, zokusebenza kwezinsiza eziphephile kwezinhlelo zezeMvelo nganoma iyiphi isilinganiso.