Ukuhamba kwesikhumbuzo sokuhlanganisa i-jet grouting kumela isigaba esikhethekile seziqhumane ezijulile zomhlaba eziklanyelwe ukuphathwa kokuhlakanipha, ukujolisa ukuxhatshazwa kwemishini ye-jet grouting ngenhla kwezintambo ezinqunyelwe, kuqinisekisa ukudalwa kwemikhono elinganiselwe nezindonga eziqinisekile ngokuhamba okuphansi kokwelashwa ngemva. Le teknoloji ibalulekile ekwakheni amacurbani amakhulu, ukulungiswa komhlaba ngaphansi kwezakhiwo ezigcina amanzi, kanye nokuphuculwa komhlaba lapho ukwehla komzimba wokwakha nezimphetho ezijulile kubalulekile. Ekubunjweni kwezinsiza zokwakha ezijulile, amasistimu okuphathwa okuhamba aphethwe ikakhulukazi ngaphansi kwamadamu, ama-reservoir, nezakhiwo ezingaphansi zomhlaba ezidinga ukulawulwa kokuphuma kwamanzi; ukuthuthukiswa komhlaba ngaphambi kokwakhiwa kwemigodi yokuxhumana ne-tangent, lapho umhlabathi ophukile unciphisa imiphumela yokunyakaza kwezinduku; kanye nokwakha amakhilomitha e-jet grouting ukuze kukhuliswe umthwalo nokusebenza kahle emhlabeni ophakeme. Lezi zinsiza zibalulekile ekuthuthukisweni komhlabathi ngaphambi kokushaywa kwemigodi ngaphansi kwezimo ezihlanganisiwe, ukufakwa kwemigoqo yokugcina emaphrojeni wokulungisa, kanye nokuhlanganiswa komhlaba ukuze kusizakale ekwakheni izisekelo emazingeni noma ezindaweni eziphumelelayo. Izinhlelo zifaka phakathi ukulungiswa kwe-diaphragm wall, ukuqina kwe-sheet pile wall, kanye nokuxubha umhlaba wezindawo ezinkulu lapho izinsiza ze-jet grouting ezimele zidalela izindawo ezingeziwe ezimangelengele zomhlaba. Isimiso sokusebenza sihilela i-jet grouting lance ethonyiwe kumakhi wokuhamba ophethwe ebhange elinengqondo ovuselelwa ngendlela elandelanayo yebhodi eqondile. Njengoba le frame ihamba phezulu - ngokuvamile ngezikhala ezingu-0.5 kuya ku-1.5 m - i-lance ihla phansi futhi iyashintsha ngaphezulu kosondo olwakhiwe, ifaka ucezo oluxhunywe ngogesi (ohlangothi olunye, olulodwa, noma lwama-fluid amathathu) emhlabeni ngengcindezi ye-bar eyi-300-700. Le igerisi ephezulu i-jet erosion ithinta ngokomzimba ibhantshi nokuhlala eduze komhlaba, okwakha izinduku eziqinisekisiwe noma izindonga ezinqunyiwe ezinomkhawulo ofanele (ngokuvamile phakathi kwemikhawulo eyi-0.6–2.5 m) nokusebenza kahle (3–30 MPa kuye ngohlobo lomhlabathi kanye nezimpawu zokufaka). Ukuhamba kwezinsiza kunciphisa izindawo ezingeziwe nokuphazamiseka kwamadwaleni okuvame ukufanela kumishini eqinile, kuqinisekisa ukuphuzwa kahle kwenzeka emaphethelweni amakhulu projekthi. Izindlela zeziqhumane zihluke ukusuka kumakh-frame ahlakaniphile aphakanyisiwe anohlelo lokuhlelwa kwe-hydraulic kumhlaba kuya kumamodeli aphelele anohlelo lokuphumelela nezimpawu ze-GPS ezihamba phambili. Ukufakwa okuvamile kuhlanganisa isakhiwo se-lattice noma esihlanganisiwe esiklayelekayo kumada amane akhanyayo noma amakhompyutha ahlukanisile, i-unit ye-pump engaphezu kwenqwaba (ngokuvamile i-150–200 kW), isakhiwo sokuphakamisa nokuqhubekisela i-lance, nezinhlelo zokulawula ezihlanganisiwe ukuze kulawulwe ingcindezi yokufaka, ivolumu ye-slurry, ububanzi bezinduku, kanye nokuqhubeka kwezinqubo. Izindlela zokukhetha zifaka phakathi indawo yokulawula yokwelashwa okungenhla nokuhlanganiswa komhlaba, ububanzi bezinduku ezijolisiwe nezidingo zokuhlangana, ukujula kokufaka nokusebenza kahle okudingekayo, ukuphakama kokusebenza okukhona nokutholwa kwesikhala sokuhamba, ukukwazi kokuhamba komhlabathi nezimangalo zamandla, imisindo yokusebenza ne-oscillator, kanye nokufinyelela endaweni yokuphumeza izigaba zemuva. Ukukhethwa kwezinsiza kuxhomeke futhi kumazinga wokunemba komugqa ohlokozwayo, ukuphinda kabhi, ukwethembeka kwepump emigodini enezimo ezinzima, kanye nokuhambisana nezinhlelo zokuhlola ikhwalithi ngesikhathi sangempela. Ukuklanywa nokusebenza kugqugquzelwa yi-EN 14679:2018 (Jet Grouting – Ukuphathwa Komsebenzi Okhethekile Kwezobuchwepheshe), EN 1997-1 (Ukuklanywa Kwezobuchwepheshe – Imithetho Ejwayelekile), DIN 4093 (Ukuphathwa Kwe-Jet Grouting Nokwethembeka Kwekhwalithi), kanye nezindinganiso ezithile zomhlaba. Ukuphathwa kwekhwalithi kuvame ukufaka phakathi i-trial column coring, ukuhlola amandla okuqina okungaphunekayo, kanye ne-cross-hole sonic logging ukuze kuqinisekiswe ukuhamba nezinga lokwakha ngaphambi kokufaka zonke izinsiza.
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