Ka qaleho ea nchafatso ea toropo ea khale, liphaephe tse qoelitsoeng le liqubu tse entsoeng esale pele tse hahiloeng ka bo-1970 le bo-1980 e tla ba lintlha tsa bohlokoa tse amang tsoelopele e tloaelehileng ea kaho. Phekolo ea liqubu tsa motheo tse neng li le teng e se e le taba ea bohlokoa lefapheng la kaho ea geotechnical. Mokhoa oa kaho oa Super Top o fana ka mokhoa o mocha le o sebetsang oa kalafo.
Mokhoa oa kaho oa Super Top (mokhoa o pota-potileng oa mofuta oa tšepe oa ho cheka) ke rotator ea casing e sebelisang khatello e tlase le torque e hlahisoang ke lisebelisoa tse potolohang ka botlalo ho khanna casing ea tšepe ho potoloha, e sebelisa ketso ea ho itšeha ea hlooho e matla e phahameng. phaephe orifice mobung, e phunya casing fatše, 'me joale sebelisa grab claw ho tlosa litšitiso ka hare ho casing.
Mekhoa ea mantlha ea ho alafa motheo o teng ka sesebelisoa sena ke tse latelang:
Mokhoa oa 1: Sebelisa sesebelisoa sena ho koahela motheo o teng phala, ebe u sebelisa hamore e boima ho e pshatla, 'me qetellong u sebelise ho tšoara ho e ntša.
Mokhoa oa 2: Sebelisa sesebelisoa sena ho koahela motheo o teng ka phala, sebelisa sethunya sa metsi se nang le khatello e phahameng ho senya mobu o pota-potileng qubu, ebe u khanna lesela le lelelele la tšepe e khutlo-tharo ho lokisa qubu e teng, ho potoloha casing, sotha qubu. , 'me qetellong sebelisa punch le ho tšoara ho ntša karolo ea qubu ho fihlela phekolo e phethoa.
Mokhoa oa 3: U sebelisa sesebelisoa sena, motheo o teng o kenngoe ka har'a phala, 'me mochini o tšesang lieta o kenngoa ka har'a casing. Khatello ea moralo oa sebopeho sa lieta tse ngata tsa tšehetso e sebelisetsoa ho adsorb leboteng le ka hare la casing. Ebe, khatello e tlase ea casing rotary e sebelisoa ho khanna "multi support shoe crusher" ho phunya le ho pshatla qubu.
Sets'oants'o sa Sets'oants'o sa Kalafo e Senyehileng bakeng sa Lieta tsa Litšehetso tse ngata tsa li-Piles tse neng li le teng.
Mokhoa ona oa kaho o tsejoa e le "mokhoa oa kaho o akaretsang" Japane. Thepa e ka finyella 1/500 verticality 'me e ka khaola lejoe le matla a phahameng le konkreite e matlafalitsoeng, e fana ka litharollo tse ncha mathateng a macha a kopaneng le kaho ea geotechnical.
Lintlha tse ling mabapi le casing rotator, pls ka mosa ikopanye le rona.
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Nako ea poso: Mar-29-2023