AmaCasing Pipes angabuyiswanga (alahlwayo)

Ama-pipe wokufaka angabuyiswanga, adume ngokuthi ama-casing asetshenziswayo noma ama-casing ayinsalela, ahlulelwa njengendlela yesofthiwe yokuhlinzeka ama-micropile lapho ama-casing ensimbi eziyinhloko egcinwa endaweni ngaphakathi komgodi esikhundleni sokukhishwa ngemva kokuphothulwa kokuhlinzeka. Le ndlela isetshenziswa ezinhlelweni ezihlukahlukene ze-geotechnical lapho izimo zomhlaba, izindleko zephrojekthi, noma izidingo zokwakha zenze ukufakwa kwe-casing okuhamba phambili kube yisixazululo esifanele. Le ndlela ibandakanya ukushaya noma ukujikeleza ama-casing strings emhlabeni phakathi kokufakwa kwemicropile, ngokuvamile kubangeni bama-diameters angaphandle aphakathi kuka-60mm no-300mm, kuye ngezidingo zokuthwala umthwalo nezidingo zokuzinza komgodi. Uma i-drill bit ihamba ngaphakathi kwe-casing futhi igxuma emkhandlwini, isinqumo sokushiya i-casing endaweni sithathwa ngokuya ngokwakheka komhlaba, izimo zamanzi omhlaba, kanye nezincazelo zokwakha ze-micropile system. Imishini nezindlela ezisetshenziswa emisebenzini ye-casing engabuyiswanga zidinga ama-drilling rigs akhethekile akwazi ukuphatha zombili izindlela zokuhlinzeka ezijikelezayo nezomshayo. Ama-continuous flight auger rigs, imishini yokuhlinzeka ejikelezayo, kanye nemishini yokudlula eqhutshwa ezindleleni efakwe ama-mast assemblies ezifanele zenza kube lula ukufakwa kwe-casing ezimeni zomhlaba ezinzima. Le nqubo ivamise ukufaka amathuluzi okususwa kwe-casing esikhathini esithile, ama-drilling assemblies anama-drilling bits ahlanganisiwe, kanye nezixazululo zokuhlinzeka ezisekelwe kwi-bentonite noma izinhlelo zokuhlanza umoya ukuze kugcinwe ukuzinza komgodi ngesikhathi sokuhamba phakathi kwe-clay, umhlaba ophumayo, izakhiwo zejololo, noma izimfanelo ezihlanganisiwe. Ama-micropile drilling rigs anamandla ashintshashintshayo nesilinganiso esiphezulu se-torque abaluleke kakhulu ekuphatheni ukuhamba kwe-casing ezindaweni ezinzima zomhlaba nasekubhekaneni nokuphikiswa kokuxhumana okuphakanyisiwe ngesikhathi sokufakwa. Izicelo ze-casing engabuyiswanga zifaka imikhakha ehlukahlukene yezehlakalo zamanzi njengokufaka isisekelo ngezikhungo ezikhona, ukuthuthukiswa kwamaphrojekthi, ukuqiniswa kwezinga, ukuthuthukiswa komhlaba ezindaweni zasemakhaya, kanye nokusekela izakhiwo zokwakhiwa ezindaweni ezingazinzile noma ezithintekile. Le ndlela ibaluleke kakhulu ezindaweni ezineziqongo zamazinga amanzi aphakeme, lapho i-casing engapheli ivimbela ukufakwa kwamanzi omhlaba futhi ivikele izakhi ze-micropile system. Ngaphezu kwalokho, i-casing engabuyiswanga inciphisa isikhathi sokufaka uma kuqhathaniswa nezindlela zokuhlinzeka ezijwayelekile ezinamacasing, njengoba abayisebenzisi bemishini bekhipha isigaba sokukhishwa ezinhlelweni zephrojekthi. I-casing yensimbi eqinile inikeza ubuqotho bokwakha ku-micropile system, isabalalisa umthwalo ngempumelelo ngaphezulu kwezingqimba zomhlaba ezingenayo futhi ithuthukisa ukusebenza kokwakha jikelele ezimeni zomhlaba ezinzima ezijwayelekile ezibhekene nokuthuthukiswa kwedolobha kanye nezinhlelo zezakhiwo ezibalulekile.