Le mitha yokwakha ikakhulukazi iyinto efaneleka kahle eyakhiwe ukuze ifakwe ezimweni ezikhaleni noma phansi kolwandle, lapho izindlela zokufaka ezijwayelekile zingase zingabi namthelela ngenxa yokungena kwamanzi noma ukuhlukaniswa. Iqukethe iPortland cement, izithako ezincane nezinkulu, kanye namanzi, i-tremie concrete ifaka okuqukethwe okuphezulu kwe-paste nakho ukuncipha kokubili amanzi-nemikhiqizo yokwakha uma iqhathaniswa nocingo olujwayelekile. Ukwakheka kwemathiriyeli kulungiselelwe ngokukhethekile ukuvimbela amanzi ekusheleni amabhola e-cement ngesikhathi sokufakwa, kugcina ukuxhumana nokukhula kwamandla ngisho nasemiceleni enzima yangaphansi. I-matrix ye-paste ku-tremie concrete ibamba futhi isindayo, ivumela ukuba ihlangabezane namandla abangelwa ukunyakaza kwamanzi ngesikhathi sokufaka. Ezweni lokwakhiwa okujulile nakwezehlakalo ze-geotechnical, i-tremie concrete ibamba imisebenzi ebalulekile ezinhlelweni eziningi. Iyiwona material oyinhloko yokugcwaliswa kwezakhiwo ezijulile nezinsika ezinqunyelwe ngaphansi kwethebhu yamanzi, iqinisekisa ubuqotho bezakhiwo lapho izinsika kufanele zithwele imithwalo efinyelelekayo nezithako eziyinqaba ezinhlangeni zokuphalaza. Ku-contruction ye-diaphragm wall kumathafa aphansi kanye nezakhiwo zokupaka ezingezansi, i-tremie concrete ivimba ukungena kwamanzi ngenkathi igcina ukumelana okujwayelekile. I-tremie concrete ibalulekile futhi ku-setup ye-tremie-tube yokusebenza kwezakhiwo eziphansi kolwandle, kubhukulethe onakele, nezakhiwo ze-caisson. Phakathi kwezinhlelo zokuthuthukiswa kwezindawo, ibamba imisebenzi ye-jet grouting futhi inikeza ukuzinza kwezinsika ze-soil-cement ngaphansi kwethebhu yamanzi aphezulu. Ukulethwa nokwakhiwa kwesayithi kudinga izinqubo ezikhethekile ezihlukile kunezangezikhathi ezijwayelekile. I-tremie concrete ivame ukuhlinzekwa ngokuqhamuka kwemikhiqizo yakhiwe enezinga eliqinile lokulawula ikhwalithi, ithelwe kumatramu e-concrete enomoya oqhubekayo ukuvimbela ukuhlukaniswa. Ukufakwa kwendawo kudinga ama-tremie tubes noma amapayipi akugcina uxhumane nesigaba se-concrete ngesikhathi sokufaka, avimbela ukungena kwamanzi futhi aqinisekise ukugeleza okuqhubekayo. I-concrete iyashukunyiswa kancane ngaphakathi kwe-payipi le-tremie, nepayipi ikhishwa kancane njengoba izinto zigcwalisa ingcindezi noma i-pile shaft ukusuka phezulu kuye phansi. Izindawo zokugcina zigxile ekunciphiseni isikhathi phakathi kokuhlanganiswa nokufakwa—ngokujwayelekile kungaphakathi kwemizuzu engu-90—ukuze kugcinwe ukusebenza kahle nokuvimbela ukuvula kwangaphambi kwesikhathi. Izigaba eziyinhloko ze-tremie concrete zifaka amazinga owokwakha ajwayelekile (ngokuvamile C25/30 kuya ku-C40/50 kwinotshi ye-Europe, noma efanelekile no-3000-4000 psi ezicwaningweni zaseNyakatho Melika) kanye nezinhlobo eziphumelelayo ezenza ama-material ezenzakalelayo ezifana ne-fly ash noma i-silica fume ukuze kuncishiseke ubuhlanga emanzini ayonakalisayo. Ubukhulu be-concrete buhamba phakathi kuka-2300 kuya ku-2500 kg/m³ kuye ngokukhethwa kwezithako kanye nokuhlanganiswa kokuphuma. Izinga lokukhetha ukubeka i-tremie concrete lifaka phakathi kokuhlola ubudlelwane bamanzi-nemikhiqizo yokwakha (ngokuvamile 0.45–0.55), izici zokugeleza (600–800 mm ukuze kubekhona ukufakwa kahle), amandla adingekayo okucindezela ngemva kwezinsuku eziyi-28, kanye nezimo zokubhekana nezinto ze-chemical. Abachwepheshe kufanele bahlole okuqukethwe kwe-sulfate emanzini, izinga le-salinity, kanye nokubhekelela ukusebenza kwemithi yokwakha ukuphila isikhathi eside. Iziqondiso zomhlaba wonke ezibhalela i-tremie concrete zifaka i-EN 12390 uchungechunge lokuhlola i-concrete, i-ASTM C94 ngenxa yokuhlinzekwa kwe-concrete, i-EN 206 yokusebenza kwe-concrete kanye nokwakheka, ne-ISO 1927 yokucaciswa kwe-precast concrete. Izincwadi zokufaka i-tremie zibhalwe ku-EN 1538 ye-diaphragm walls kanye nezincwadi ezahlukene zezwe lezakhiwo nezinsika.
Le mitha yokwakha ikakhulukazi iyinto efaneleka kahle eyakhiwe ukuze ifakwe ezimweni ezikhaleni noma phansi kolwandle, lapho izindlela zokufaka ezijwayelekile zingase zingabi namthelela ngenxa yokungena kwamanzi noma ukuhlukaniswa. Iqukethe iPortland cement, izithako ezincane nezinkulu, kanye namanzi, i-tremie concrete ifaka okuqukethwe okuphezulu kwe-paste nakho ukuncipha kokubili amanzi-nemikhiqizo yokwakha uma iqhathaniswa nocingo olujwayelekile. Ukwakheka kwemathiriyeli kulungiselelwe ngokukhethekile ukuvimbela amanzi ekusheleni amabhola e-cement ngesikhathi sokufakwa, kugcina ukuxhumana nokukhula kwamandla ngisho nasemiceleni enzima yangaphansi. I-matrix ye-paste ku-tremie concrete ibamba futhi isindayo, ivumela ukuba ihlangabezane namandla abangelwa ukunyakaza kwamanzi ngesikhathi sokufaka. Ezweni lokwakhiwa okujulile nakwezehlakalo ze-geotechnical, i-tremie concrete ibamba imisebenzi ebalulekile ezinhlelweni eziningi. Iyiwona material oyinhloko yokugcwaliswa kwezakhiwo ezijulile nezinsika ezinqunyelwe ngaphansi kwethebhu yamanzi, iqinisekisa ubuqotho bezakhiwo lapho izinsika kufanele zithwele imithwalo efinyelelekayo nezithako eziyinqaba ezinhlangeni zokuphalaza. Ku-contruction ye-diaphragm wall kumathafa aphansi kanye nezakhiwo zokupaka ezingezansi, i-tremie concrete ivimba ukungena kwamanzi ngenkathi igcina ukumelana okujwayelekile. I-tremie concrete ibalulekile futhi ku-setup ye-tremie-tube yokusebenza kwezakhiwo eziphansi kolwandle, kubhukulethe onakele, nezakhiwo ze-caisson. Phakathi kwezinhlelo zokuthuthukiswa kwezindawo, ibamba imisebenzi ye-jet grouting futhi inikeza ukuzinza kwezinsika ze-soil-cement ngaphansi kwethebhu yamanzi aphezulu. Ukulethwa nokwakhiwa kwesayithi kudinga izinqubo ezikhethekile ezihlukile kunezangezikhathi ezijwayelekile. I-tremie concrete ivame ukuhlinzekwa ngokuqhamuka kwemikhiqizo yakhiwe enezinga eliqinile lokulawula ikhwalithi, ithelwe kumatramu e-concrete enomoya oqhubekayo ukuvimbela ukuhlukaniswa. Ukufakwa kwendawo kudinga ama-tremie tubes noma amapayipi akugcina uxhumane nesigaba se-concrete ngesikhathi sokufaka, avimbela ukungena kwamanzi futhi aqinisekise ukugeleza okuqhubekayo. I-concrete iyashukunyiswa kancane ngaphakathi kwe-payipi le-tremie, nepayipi ikhishwa kancane njengoba izinto zigcwalisa ingcindezi noma i-pile shaft ukusuka phezulu kuye phansi. Izindawo zokugcina zigxile ekunciphiseni isikhathi phakathi kokuhlanganiswa nokufakwa—ngokujwayelekile kungaphakathi kwemizuzu engu-90—ukuze kugcinwe ukusebenza kahle nokuvimbela ukuvula kwangaphambi kwesikhathi. Izigaba eziyinhloko ze-tremie concrete zifaka amazinga owokwakha ajwayelekile (ngokuvamile C25/30 kuya ku-C40/50 kwinotshi ye-Europe, noma efanelekile no-3000-4000 psi ezicwaningweni zaseNyakatho Melika) kanye nezinhlobo eziphumelelayo ezenza ama-material ezenzakalelayo ezifana ne-fly ash noma i-silica fume ukuze kuncishiseke ubuhlanga emanzini ayonakalisayo. Ubukhulu be-concrete buhamba phakathi kuka-2300 kuya ku-2500 kg/m³ kuye ngokukhethwa kwezithako kanye nokuhlanganiswa kokuphuma. Izinga lokukhetha ukubeka i-tremie concrete lifaka phakathi kokuhlola ubudlelwane bamanzi-nemikhiqizo yokwakha (ngokuvamile 0.45–0.55), izici zokugeleza (600–800 mm ukuze kubekhona ukufakwa kahle), amandla adingekayo okucindezela ngemva kwezinsuku eziyi-28, kanye nezimo zokubhekana nezinto ze-chemical. Abachwepheshe kufanele bahlole okuqukethwe kwe-sulfate emanzini, izinga le-salinity, kanye nokubhekelela ukusebenza kwemithi yokwakha ukuphila isikhathi eside. Iziqondiso zomhlaba wonke ezibhalela i-tremie concrete zifaka i-EN 12390 uchungechunge lokuhlola i-concrete, i-ASTM C94 ngenxa yokuhlinzekwa kwe-concrete, i-EN 206 yokusebenza kwe-concrete kanye nokwakheka, ne-ISO 1927 yokucaciswa kwe-precast concrete. Izincwadi zokufaka i-tremie zibhalwe ku-EN 1538 ye-diaphragm walls kanye nezincwadi ezahlukene zezwe lezakhiwo nezinsika.
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