Amathuluzi Okubhoboza eHollow Auger

Imishini yokubhoboza i-hollow auger imele indlela ebalulekile ekufakweni kwe-micropile, inikeza amakhono akhethekile okubhoboza ukuze kwakhiwe izimbobo ezimweni ze-geotechnical eziyinkimbinkimbi lapho imishini evamile yokushaywa kophahla noma izindlela zokubhoboza ezijwayelekile zingafaneleki. Le mishini ibalulekile enqubo ye-micropiling, uhlelo lwesisekelo esijulile olusebenzisa amaphayili amancane, anohlu olubanzi, phakathi kuka-150mm no-300mm ububanzi, ukuze kudluliselwe umthwalo wesakhiwo emangcwabangweni aphukile noma angcolile kuzo ezisemagqumeni afanele. Ama-hollow augers asebenza ngendlela yokujikeleza ngenkathi edlula ku-profile yomhlabathi, lapho imithombo ephakathi ivumela ukuhamba kweshani yokubhoboza nokufakwa kwe-casing ngesikhathi esifanayo, ivumela ukusethwa kokulawulwa kwezinto zezakhiwo namakholomu e-grout akha umnyango wesisekelo. Ukusetshenziswa kwemishini yokubhoboza i-hollow auger kuhambisana nezinselelo ezahlukene ze-geotechnical, kuhlanganisa neprojekthi ezidinga ukufaka isisekelo sezakhiwo ezikhona, ukuqinisa ama-slopes, ukwakha ama-layer omhlabathi anobubha, nomsebenzi wesisekelo ezindaweni ezinamakhono okungena okukhawulelwe lapho imishini esindayo evamile ingasebenzi. Le mishini ikhaliphe kakhulu ezindaweni ezibandlululayo zomphakathi, eduze kwezikhungo ezikhona, ngaphansi kwezimo zokuphakama okuphansi, nasemhlabathini aqukethe ama-boulders noma ama-cobbles angavimbela imisebenzi ejwayelekile yokubhoboza. Izinhlelo ze-micropiling ezifakwe ngama-hollow auger zokubhoboza zinikeza amandla aphezulu omthwalo naphezu kokuncipha kobubanzi bazo, zenze zibe izixazululo ezikahle kwezomnotho zokuthuthukisa izisekelo ezinganele noma ukusabalalisa imithwalo egxile ezindaweni ezibanzi. Oonjiniyela bakhetha izindlela zokubhoboza i-hollow auger lapho izithiyo zesayithi, izinqubomgomo zemvelo ezikhawulela ukudlidliza noma umsindo, noma izimo zomhlabathi ezithile zidinga ukubhoboza okuqondile ngaphandle kokuphahlazeka komhlaba. Imisebenzi yokubhoboza i-hollow auger idinga imishini ethuthukiswe kahle efaka phakathi ama-rotary rigs anamandla akwazi ukuhlinzeka nge-torque elawulwayo, izinhlelo zokuphatha ubude, kanye nezinsiza zokufaka izikhwama ezigcina ukuvumelana okuqinisekile okuqondile noma okujoliwe. Izinhlelo zokujikeleza kwegazi lokubhoboza, ezivame ukusebenzisa i-bentonite slurry noma izinto ezisebenziseka nge-polymer, ziqeda izicwengi ezivela embobinini ngenkathi ziqinisa ama-sidewalls emhlabathini onjengwe ne-saturated. Izimo zomhlaba ezifanele ukuhlinzeka nge-hollow auger zifaka i-silt, i-clay, amatshe aphukile, kanye nezinto zokuguqula lapho izindlela zokujikeleza zinikeza ukulawula okungcono uma kuqhathaniswa nezindlela zokushaya. Abakhiqizi abanamakhono abenza lezi zinhlelo basebenzisa abantu abakhethekile abaqeqeshiwe ezinhlelweni zokubhoboza eziyinkimbinkimbi, ukuqapha ingcindezi ngesikhathi sangempela, kanye nokuhlaziywa kwe-geotechnical kwezimo zokubhoboza ezikhombisa ukuguqulwa kwezilinganiso zomhlaba noma amandla amabhulashi ahlukene. Indlela yokubhoboza i-hollow auger ikhipha ukuphazamiseka komhlaba okuncane, ukuhlweza okuncane ezakhiweni ezikanye, futhi isusa imiphumela yokudlidliza nomsindo ehambisananokukhishwa kophahla, iyenza ikhethwe ezindaweni zokuvikelwa kwemivubukulo, ezindaweni ezithinteka kalula ngezikhukhula, nasemaphandleni anabantu abaningi. Ukufakwa kwe-micropile okunekhwalithi okufezwe ngama-hollow auger kokubhoboza kuhlinzeka ngokwethembeka kwesikhathi eside kwizakhiwo ezidinga ukuthuthukiswa okuphuthumayo noma ukuqinisa isisekelo, kuhlanganisa ukunemba kwezobuchwepheshe bokubhoboza ngobubanzi namandla okuhamba kwezinkanyezi ezijulile ezihambisana nezinhlaka zomhlaba ezihlukahlukene nezimo zokufaka eziyinselele.