Iziphekwa zemihlangano ezijiyile ezinezakhiwo eziphumayo zisebenza njengezindawo ezijulile ezifanele izinhlelo zokwakha izakhiwo, amabhuloho, izakhiwo zasolwandle, amapulatifomu angaphandle, nezindawo zemboni. Lezi ziphango zinga zisetyenziswa ezimweni ze-geotechnical ezinzima, kufaka phakathi izindawo ezithambile zomhlaba, izimpahla ze-alluvial, izindawo ezimfucumfucu, nezindonga ezinjalo ezidinga ubude obungalinganisiwe obukhulu. Lezi ziphango zisetshenziswa kakhulu emisebenzini yokuthuthukisa umhlaba kanye nezinhlelo zokuzinza ze-geotechnical, kufaka phakathi ukwakha izakhiwo ezikhona ezibhekene nokuhla kohlobo, ukuzinza okunobungozi ezinhlakeni ezitholakalayo, nokwakha izinhlelo zokugcina ezinemikhono ethintayo. Ukuklama okujiyile kube lula izidingo ezivela ezindaweni eziphakathi nendawo ukuya ezijulile — ngokuvamile i-15 ukuya kuma-100+ amamitha — lapho izikhala ze-monolithic zingase zibe nzima kahle ngezokuhamba kanye nezindleko zokuzenzakalelayo. Izinhlelo ezijiyile zaneliswa njengezikhumbuzo eziphumayo ezivela ku-9 ukuya ku-20 amamitha ngesigaba, kuvumela ukuguqulwa kwepali ngokunembile ngaphezu kokuxhumana kokuhlola. Izindlela zokugcina zidinga ukuhlela okunqunyelwe kokuxhaswa ukuze kuvinjelwe ukucindezela okuvulekile nezinhlelo zokuphutha izixhumanisi ukuze kuvinjelwe ukuhlinzwa kwendawo kanye nokulimala kwekhonkrithi. Ukufakwa kusebenza kanye nezinsiza zokuphakamisa umoya (drop hammers, diesel hammers) zokufaneleka kwepali eyejwayelekile, noma izinhlelo zokuphakamisa eziphindaphindiwe ukuze zinciphise ukumelana nomhlaba nokukhuluma ngesikhathi sokungena through granular formations. Izixhumanisi—ngokuvamile eziyimizwa nezimbobo, izilinganiso kanye nezixhumanisi eziboshwe—zidinga ukuhlela okuqondile ngesikhathi sokwandisa ipali ukuze kuqinisekiswe ukuqhubeka kokulayisha kanye nokuvimbela ukungaphezulu kwezindlela. Izilinganiso ezijwayelekile zihlala phakathi kwama-300 ukuya kuma-600 mm ngama-ukwakha ophahleni adalwe ahambisana nezimo ezilindelekile zokuphakamisa nezimfuno zomklamo zexesha elide. Izinhlelo zokukhumbula zenziwa ngokwezinhlelo zomhlaba kanye nezidingo zokulayisha. Izinhlobo ezikhethekile zifaka izigaba ezinzima ezithuthukisiwe ukuze zikhona zama-condition eziphakeme, izigaba ezivulekile ezikwenza ukubona futhi ukuhlukaniswa komhlaba, kanye nezigaba eziyi-closing-end ez iqondile ukuze ziqhube emaqazini anethuba elibucayi. Abaklami abahlola iziphango ezijiyile bahlola izidingo zokukhanga, izinhlelo zomhlaba zangempela, ubude obudingeka bokungena, ukumelana okukhanga okulindelekile, izikhathi zokwakha, ukuncishiswa kokuxhashazwa, kanye nezindleko zempilo. Amandla okuphenduka avumelekile kwalesi sigaba sikaBantu sikhokha izikhala ezitholakala ngemuva, kudlulele kancane izingozi zokuphumelela. Iziphango ezijiyile zilandela izinga le-EN 14199 (Izikhumbuzo zekhonkri ethile), i-ISO 3406 (Izindinganiso zemikhiqizo ye-pile ethile), kanye ne-ASTM C1025 (Izimpawu ze-pile ezivaliwe), zakha izinga eliqinile lokusebenza, izidingo zokukhanga zekhonkri, izindinganiso zokuxhaswa, izinqumo zomumo, kanye nezimfanelo zokuphepha zokwakha ezizobonwa across international deep foundation projects.
Iziphekwa zemihlangano ezijiyile ezinezakhiwo eziphumayo zisebenza njengezindawo ezijulile ezifanele izinhlelo zokwakha izakhiwo, amabhuloho, izakhiwo zasolwandle, amapulatifomu angaphandle, nezindawo zemboni. Lezi ziphango zinga zisetyenziswa ezimweni ze-geotechnical ezinzima, kufaka phakathi izindawo ezithambile zomhlaba, izimpahla ze-alluvial, izindawo ezimfucumfucu, nezindonga ezinjalo ezidinga ubude obungalinganisiwe obukhulu. Lezi ziphango zisetshenziswa kakhulu emisebenzini yokuthuthukisa umhlaba kanye nezinhlelo zokuzinza ze-geotechnical, kufaka phakathi ukwakha izakhiwo ezikhona ezibhekene nokuhla kohlobo, ukuzinza okunobungozi ezinhlakeni ezitholakalayo, nokwakha izinhlelo zokugcina ezinemikhono ethintayo. Ukuklama okujiyile kube lula izidingo ezivela ezindaweni eziphakathi nendawo ukuya ezijulile — ngokuvamile i-15 ukuya kuma-100+ amamitha — lapho izikhala ze-monolithic zingase zibe nzima kahle ngezokuhamba kanye nezindleko zokuzenzakalelayo. Izinhlelo ezijiyile zaneliswa njengezikhumbuzo eziphumayo ezivela ku-9 ukuya ku-20 amamitha ngesigaba, kuvumela ukuguqulwa kwepali ngokunembile ngaphezu kokuxhumana kokuhlola. Izindlela zokugcina zidinga ukuhlela okunqunyelwe kokuxhaswa ukuze kuvinjelwe ukucindezela okuvulekile nezinhlelo zokuphutha izixhumanisi ukuze kuvinjelwe ukuhlinzwa kwendawo kanye nokulimala kwekhonkrithi. Ukufakwa kusebenza kanye nezinsiza zokuphakamisa umoya (drop hammers, diesel hammers) zokufaneleka kwepali eyejwayelekile, noma izinhlelo zokuphakamisa eziphindaphindiwe ukuze zinciphise ukumelana nomhlaba nokukhuluma ngesikhathi sokungena through granular formations. Izixhumanisi—ngokuvamile eziyimizwa nezimbobo, izilinganiso kanye nezixhumanisi eziboshwe—zidinga ukuhlela okuqondile ngesikhathi sokwandisa ipali ukuze kuqinisekiswe ukuqhubeka kokulayisha kanye nokuvimbela ukungaphezulu kwezindlela. Izilinganiso ezijwayelekile zihlala phakathi kwama-300 ukuya kuma-600 mm ngama-ukwakha ophahleni adalwe ahambisana nezimo ezilindelekile zokuphakamisa nezimfuno zomklamo zexesha elide. Izinhlelo zokukhumbula zenziwa ngokwezinhlelo zomhlaba kanye nezidingo zokulayisha. Izinhlobo ezikhethekile zifaka izigaba ezinzima ezithuthukisiwe ukuze zikhona zama-condition eziphakeme, izigaba ezivulekile ezikwenza ukubona futhi ukuhlukaniswa komhlaba, kanye nezigaba eziyi-closing-end ez iqondile ukuze ziqhube emaqazini anethuba elibucayi. Abaklami abahlola iziphango ezijiyile bahlola izidingo zokukhanga, izinhlelo zomhlaba zangempela, ubude obudingeka bokungena, ukumelana okukhanga okulindelekile, izikhathi zokwakha, ukuncishiswa kokuxhashazwa, kanye nezindleko zempilo. Amandla okuphenduka avumelekile kwalesi sigaba sikaBantu sikhokha izikhala ezitholakala ngemuva, kudlulele kancane izingozi zokuphumelela. Iziphango ezijiyile zilandela izinga le-EN 14199 (Izikhumbuzo zekhonkri ethile), i-ISO 3406 (Izindinganiso zemikhiqizo ye-pile ethile), kanye ne-ASTM C1025 (Izimpawu ze-pile ezivaliwe), zakha izinga eliqinile lokusebenza, izidingo zokukhanga zekhonkri, izindinganiso zokuxhaswa, izinqumo zomumo, kanye nezimfanelo zokuphepha zokwakha ezizobonwa across international deep foundation projects.
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