Amaphampu e-walking jet grouting ayizinhlelo zokubhola nezokugroutu eziqhutshwa ngokuzimela, ezihlala kumathrekhi noma eziwheels ezenzelwe ukuhlinzeka ngokuqhubekayo kokufakwa kwemfucumfucu ye-fluid enezinga eliphezulu ngaphansi komhlaba ukuze kuthuthukiswe umhlaba, kufakwe izigcawu, futhi kuqinisekiswe ukuba nempumelelo. Lezi zifakiwe zihlanganisa isizinda samandla, uhlelo lwethenda lwe-hydraulic, umgodi wokubhola, nezinhlelo zokulawula endaweni eyodwa ephathekayo, okuvumela imisebenzi ye-jet grouting eqhubekayo ezindaweni ezivinjiwe nasemithambekeni esheshayo lapho imishini ejwayelekile yokubhola engakwazi ukufakwa ngempumelelo. Ezokwakha izisekelo ezijulile, ama-rigs e-walking jet grouting asetshenziswa kakhulu ekwakheni ama-cutoff curtains ngaphansi kwezisekelo zezingadla, ngaphansi kwezindawo ezingcolile, nasemathafeni wezintambo ukulawula ukugeleza kwamanzi kanye nokuhamba kokungcola. Zibalulekile futhi ekwakheni izikhala ezihlotshiswe ngemva kokugroutu ekwakhiweni kwemigwaqo ye-diaphragm, zifeza ukungena emanzini ezikhala zamapaneli futhi zinciphise ugesi we-hydrostatic ophakanyiswa ezakhiweni ze zidanga. Ngaphezu kwalokho, lezi zifiki ziqhakambisa ukuqina kwemizi ngemiphumela yokwehlisa umhlabathi kanye nokwenziwa kube mkhulu, ikakhulukazi ezindaweni ze-alluvial, ama-silts, kanye namathafa lapho izisekelo ezijulile zesiko zidinga ukuthuthukiswa komhlaba. I-jet grouting eyenziwa ama-rigs wokuhamba iphinde iqinise amaqembu amabhodi asethwe, ihlangabezane nezindawo ezizoba nezehlakalo, futhi idale amabhamuza aphakathi kwamanzi ezindaweni zasolwandle kanye nezindawo zamachibi. Iziqu ezisebenzayo zingaphansi kokufaka imfucumfucu efakwe ngaphansi kwengcindezi (imvamisa i-bentonite-cement noma imiphumelo esuselwa ku-cement) ngokuqhubeka kwebhande elijulile enezinga elijahile phakathi kuka-200 no-600 bar, kudala i-columna enezinhlaka ezilungiselelwe nehomogeneous. Umsebenzi ulandela ukulawula ingcindezi yokufaka, izinga lokugeleza, kanye nesivinini sokujika ukuze alawule usayizi namandla ethempeli elihlongozwayo, kanti umshini wokuhamba uvumela i-rig ukuba ibeke kahle phezu kwendawo ngayinye yokwelashwa futhi iqhubeke ngaphambi kwayo kwi-sayithi yephrojekthi. Izinhlelo zokuhlola ingcindezi nezilinganiso zokugeleza zinikeza impendulo yesikhathi sangempela ukuqinisekisa kontroli yokwakhiwa kanye nokuhlangenwe nakho kokusebenza kwawo wonke umsebenzi wokwelashwa. Ama-rigs e-walking jet grouting atholakala ezimweni eziningi: izinhlelo ezimi kumathrekhi ezimweni ezithambile noma ezicindezelwayo ezinga okuqhamuka noshintsho lwephezulu; izinguquko eziwheels ezindaweni ezinzima; ama-rigs amancane ezindaweni ezikhawulelwe; kanye nezinhlelo ezinamandla aphezulu zokuqhubeka amakhasi amakhulu. Ukuhluka okukhululekile kuhlanganisa amandla okubhola (imvamisa amamitha ayi-10 kuya kweyama-40), izikhala zokufaka ingcindezi (200–600 bar), isikhumbuzo sokugeleza kwemfucumfucu (30–300 litha/ngesigqi), kanye nokukhipha isizinda samandla (75–250 kW), ukhetha kusekelwe kumasu wokwakhiwa kanye nokufinyelela kwesayithi. Ukukhetha imishini kuncike ezicini eziningi: izidingo zokufaka ingcindezi kanye nesikhala okufanele zisetshenziswe ekuhlolweni kwezinhlelo zokuhamba kwamanzi nokwakhiwa; ubuchwepheshe bezinto ezisemhlabeni kanye nobuhlungu (okunquma amaqembu e-nozzle nokujula kokwelashwa); imikhawulo yokufinyelela edizayinelwe nokuqina komhlaba; isheduli yokukhiqiza kanye namathafa okufaka; kanye nokutholakala kokuhamba kwamanzi kanye nemithi yokufaka. Abasebenzi kumele baqinisekise ukuhambisana nezidingo ezihlobene ne-EN 1997-1 (i-Eurocode 7 design) kanye ne-EN 12715 (imigomo yokubhala) ezichaza ngokuqinile umkhawulo wokufaka ingcindezi ezimbonini ezinzima, ukwakhiwa kokufaka nokuphila, kanye nemikhawulo yokuhlola ingcindezi ukuze kuqinisekiswe ukusebenza kwemikhono. Imishini kumele ihlinzeke ngemiphumela edlulisekwayo, ekwazi ukulinganiswa nezincomo eziphelele zokuhlola ingcindezi, ukugeleza, isikhathi, nosayizi wezindawo zokufaka – okuhle kakhulu ekuqinisekiseni Inhloso yokwakha kanye nokwamukelwa kwezakhamizi kanye nezikhungo zokuhlola.
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