Ithuluzi lokufaka ama-wellpoint limele uhlelo olubalulekile lokulawulwa kwamanzi angaphansi komhlaba okwesikhashana emaphandleni ayizinsiza ezijulile kanye nezinhlelo zokushaya ama-pile lapho ukuphathwa kwethebhu zamanzi kubalulekile ukuze ukwakha kuphephe futhi kube nephezulu. Izinhlelo zokukhipha amanzi ama-wellpoint izinketho eziphuthumayo zokwehlisa amanzi angaphansi komhlaba ezenziwe ngama-wellpoint anomphako omncane axhunywe kuphondo lwepipa futhi aphethwe yipompo evakuum ye-centrifugal, idala indawo yokwehliswa edingekayo ezungeze indawo yomsebenzi. Lezi zinhlelo ziwusizo ikakhulukazi ekuhlangabezaneni kokumba okungaphansi kokuphakama, ngokuvamile kusuka kwi-2 kuya kuma-10 amamitha ngaphansi kwe-thebhu yamanzi, lapho ukuthola amanzi evulekile noma ukumpompa amanzi kungaba nezinye izinkinga noma kungasebenzi kahle. Indlela ye-wellpoint ivumela abakhi ukuthi baziqinisekise ngokuqinisa imithombo ethambile, ukuvimbela ukufika kwamanzi angaphansi komhlaba, ukunciphisa ingcindezi ye-hydrostatic ezakhiweni zesikhashana nezokuphepha, kanye nokuvikela izindlela zokwakha ezijulile kubunzima obuhlobene namanzi okungase kuthinte ikhwalithi yokufaka ama-pile, amandla okwakha ezisekelweni, noma ukuphepha kwabasebenzi. Inqubo yokufaka ifuna amathuluzi akhethekile afaka ama-rigs e-wellpoint aklanyelwe ukuhamba noma ukugqadela ama-wellpoint anomphako omncane (ngokuvamile ayi-25 kuya ku-50 ama-milimitha) emithonjeni efana ne-cohesive kanye ne-granular soils. Lezi zinsiza zisebenzisa izindlela zokulwa noma zokuhlasela ukuze zifake ama-wellpoint emaphethelweni endaweni yokumba, edala inethiwekhi ebiyelwe edonsa ukuhamba kwamanzi angaphansi komhlaba. Iphiphu le-header iqoqwa phezulu, ihlanganisa wonke ama-wellpoint endaweni yokumpompa, engase ibe ne-pump ye-centrifugal noma ye-multi-stage evakumwe enokwenzeka yokwakha i-0.6 kuya ku-0.8 bar vacuum. Ukukhetha amathuluzi kuncike ezimweni zomhlaba, ukuphakama okufunekayo kokwehliswa, ubunjongo bokumba, kanye nokuphakama kwethebhu yamanzi. Imithombo ethambile efana nezindawo zamathuli ne-clays ithola izinzuzo eziphakeme ze-permeability eyakhelwe ngu-vacuum pressure, kuyilapho izifunda ezithambile eziningi njengezihlahla ne-gravels ziphendula kalula ekukhipheni amanzi. Abakhi bangase basebenzise izinhlelo ezibalwe zodwa zokufaka eziphakanyisiwe zokusebenzisa ezijulile noma izimo eziningi zokusebenza zokubumba ezijulile, futhi amathuluzi akhethekile afaka ama-strainers, amathangi e-sump, amabhokisi wokukhipha amanzi, ama-risers okungena, kanye nemifantu ehlanganisayo esebenza ngokuhlanganyela ne-unit yokumpompa eyinhloko. Amathuluzi okufaka ama-wellpoint awabalulekile ezimweni eziyinkinga ze-geotechnical ezifaka izimo zomhlabathi ethambile lapho izisekelo ezijulile zama-piling noma ama-caissons zidinga ukulawulwa kwamanzi angaphansi komhlaba, ezindaweni zasemadolobheni lapho izikhala zokwakha zikhawulela ukwakhiwa kwezimali ezinkulu ezithinta amanzi, ezokwakha ezilwandle kanye nezichibiyelo lapho izinguquko zethafa nezokuphathwa kokufula kubalulekile, kanye nezindawo ezonakaliswe ezifaka izinqubo zokukhipha amanzi ezilawulwayo. Izicelo zibandakanya amaphrojekthi wesigodi esisemadolobheni njengezisekelo zezimoto nezidabukakanye, ukwakhiwa kwezinsiza ze-subway kanye nezitimu, ukufakwa kwezimali eziphansi, ukukhumba izindiza zemakethe ukuze kusebenze izakhiwo zokuhweba, kanye nokuthuthukiswa kwezikhungo zezimboni. Ukuhamba phambili kwezinqubo zama-wellpoint kubenza baphatheka ngokuphelele neziqu ezimbili zokuphakamisa, ukufaka ama-sheets, ukwakha ama-secant piles, kanye nezinye izindlela zokwakha ezijulile lapho izimo zokusebenza ezomile noma ukunciphisa ingcindezi yemvelo ezifanele. Abakhiqizi bamathuluzi bakha amaphekheji aphelele e-wellpoint anezingxenye ezivamile ezivumela ukufaka kukhulu nokukhipha, okubalulekile ukuze kusebenza kahle umsebenzi. Amathuluzi e-wellpoint anamuhla ahlanganisa ukuthuthukiswa kwesikhathi eside okuhlanganisa amaphepha amelana nokugqwala, ukusebenza kahle kwepompo okwandisiwe, kanye nemiklamo emisha eyenzela izithuthi nokufaka ezindaweni zomsebenzi ezinezithiyo kulo lonke uMhlaba, i-Asia, kanye neNyakatho Melika.
Amabhampu e-jetting akhomba ingxenye ebalulekile yezinhlelo zokukhipha amanzi ezenzakalayo ze-wellpoint kumaphrojekthi wokwakha izisekelo ezijulile kanye nobunjiniyela bezwekazi. Lezi zikhungo ze-hydraulic ezikhethekile zisebenza ngokufaka amajethi amanzi anengcindezi ephezulu emhlabathini ukuze zibe lula ukufakwa kwamathubhu e-wellpoint futhi zilethe ikhono lokukhipha amanzi angaphansi. Ngaphakathi kwesorhwebo lokumba okujule kanye nemisebenzi yokushayisa ama-pile, amabhampu e-jetting asebenza njengemishini yokwenzeka evumela abathengisi ukuba baveze ngokuzenzakalelayo izinhlelo zokukhipha amanzi ezimeni zomhlaba eziyinkimbinkimbi lapho izindlela ezivamile zokushaya zifaka ukungabi namthelela noma zithatha isikhathi eside. Inqubo ye-jetting ngokuyisisekelo idala indlela yokubhoboza esekelwe engcindezeni eyanciphisa ukumelana kokufakwa futhi isheshise ukufakwa kwezinhlelo ze-wellpoint ezindaweni ezinkulu zokwakha. Ukusebenza kobuchwepheshe bamabhampu e-jetting kuhilela ukuthumela amajethi amanzi anezinga elilawulwayo, eliphezulu kumaphuzu e-wellpoint njengoba ethumela emhlabathini, ethambisa inqubo yokufakwa ngenkathi ekhuphula futhi ihlisa ama-partikul ehlaba. Le ndlela ibaluleke kakhulu emhlabathini ohlelekile, kumagiyasi, nakumafektri enama-clay lapho ukushaya kwe-mechanical okujwayelekile kuhlangabezana nokuphikiswa okukhulu. Abathengisi basebenzisa amabhampu e-jetting anama-setting angaguquguquki, ngokuvamile aphesheya kuka-200 kuya ku-1000 psi ngokuya ngama-composition emhlabathi nezidingo zobukhulu, okuvumela abaqhubi ukuba balungiselele imishini ezimeni ezithile zomhlaba. Ukuhlanganiswa kobuchwepheshe be-jetting nokufakwa kwe-wellpoint kunciphisa kakhulu isikhathi sokungena kusuka ezinsukwini kuya kumaminithi ngaphezulu komgudu, kuvumela ukufakwa okuhle lwezinhlelo zokukhipha amanzi ngaphakathi kwemingcele yokumba izisekelo futhi kugcine izinhlelo zabathengisi ngesikhathi kumaphrojekthi athintekayo. Izicelo zamaphampu e-jetting ziqhubeka ezimeni zokwakha ezahlukene kuhlanganise nokumba okukhulu kwezingadi, ukwakhiwa kwamaphasela ezitimela, iminyango yezitobha, kanye nemisebenzi emikhulu yokwakha ama-pile edinga ukulawulwa kwamanzi angaphansi. Le mshini ibaluleke kakhulu ezindaweni zokwakha ezisemadolobheni lapho izindlela zokufaka ezingakhuphisi ukungqubuzana zidingeka, futhi lapho ukutholakala kwezinhlelo zokukhipha amanzi ezisheshayo kuvimbela ukubambezeleka kokwakha okubangelwa ukuhamba kwamanzi angaphansi. Amabhampu e-jetting ahlangana kahle namathuluzi e-wellpoint, imijantshi yokukhupha, kanye nezinhlelo zamabhampu e-vacuum noma i-centrifugal ukuze kudalwe izixazululo zokukhipha amanzi eziphelele ezigcina izimo zokumba eziqinile ngaphansi kwethebhu yamanzi. Ukuqina nokushesha kokufakwa kwe-wellpoint okukhuthazwa yi-jetting kwenza lawa mabhampu abalulekile kubathengisi bezisekelo abenza amaphrojekthi ezimeni ezinzima ze-hydrogeological lapho ukulawula ingcindezi ye-pore kanye nezinga lamaza angaphansi kuthinta ngqo imisebenzi yokushaya ama-pile, ukuzinza komhlaba, kanye nokuphepha kokumba. Izinhlelo zamuva zamabhampu e-jetting zinezinga eliphakeme lokuqina, zinciphisa izidingo zokunakekelwa, kanye nokwandiswa okuphezulu, zenze zibe imishini ejwayelekile kubathengisi bezisekelo abakhangayo emisebenzini eyinkimbinkimbi ye-geotechnical ezindaweni ezahlukene zomhlaba nezimo zomhlaba.
Imishini yokushaya ama-wellpoint iyizingxenye ezikhethekile ezibalulekile ekuqaliseni nasekusebenzeni kwezinhlelo zama-wellpoint, ezimele isixazululo esibalulekile sokulawula amanzi angaphansi emikhiqizweni emidlalweni yokwakha izisekelo ezijulile nemisebenzi yokwakhiwa komhlaba. Le mishini iklanyelwe ukudonsa amathube ama-wellpoint ane-diameter encane ezindaweni zomhlabathi ezimunca amanzi, yakha inethiwekhi yezindawo zokuhlanganisa ezisebenza ngokuhlanganyela nompipii wesikhumbuzo kanye nesistimu ye-vacuum pump ukuze yehlise izinga lamanzi ezindaweni zokwakha. Imisebenzi yokushaya ama-wellpoint ibalulekile ikakhulukazi ezinhlelweni zokukhipha amanzi ezijulile ukuya kokuphakathi, ngokuvamile ezilinganiselwa phakathi kwe-3 kuya ku-15 metres ngaphansi kwesimo somhlaba, lapho ihlinzeka ngendawo engabizi kunamasistimu amakhulu wokukhipha amanzi njenge-cofferdams noma ama-pump ama-deep well. Umshini wokushaya kumele unikeze amandla alinganayo, alawulwayo ukuze ungene ezakhiweni zomhlabathi ezihlukene ngenkathi kugcinwa ubumsulwa beetube zama-wellpoint, kuqinisekiswe ukutholakala okuyikho komashidi futhi kuqinisekiswe ukuthi kunokuxhumana okunobuchule phakathi kokukhanya komhlaba okungezansi. Inqubo yokufaka idinga imishini ethuthukisiwe ukukwazi ukuphatha izidingo eziguquguqukayo zokungena emhlabathini, silt, isihlabathi, kanye nezakhiwo zomhlabathi ezihlanganisiwe ezivame ukuhlangabezana nazo ezindaweni zokwakha ezisemadolobheni, izinhlelo, nezindawo zokumba izisekelo. Imishini yokushaya ama-wellpoint isebenzisa indlela yokushaya nge-percussion noma yokuhumusha, okwenziwe ngababheki abanolwazi abaphatha kahle ukuphakama kokushaya, isikhala, kanye nezikhumbuzo ukuze kube nesikhumbuzo esisebenzayo sokuphuma amanzi ezindaweni zomsebenzi. Izimo zomhlaba ezifana noshintsho lomhlabathi, ukusatshalaliswa kwezinto ezincane, ubukho be-cobbles noma ama-boulders, kanye nezinga lamanzi angaphansi kuthinta ukusebenza kokushaya kanye nokukhethwa kwemishini. I-versatility yezinhlelo zama-wellpoint iza nezinzuzo eziphakeme ezivumelanisa nemisebenzi yesikhashana ephathelene nokumba ngezansi, izisekelo zezinhlangothi, ukuhamba ngaphakathi, kanye nezifundo zezinsizakalo eziphansi lapho ukulawula ukugeleza kwamanzi angaphansi kubalulekile ukuze kuqinisekiswe ukuphepha kwabasebenzi nasekuvikelweni kwesikhathi sokwakha. Izicelo zihlala ezifundeni zokuthuthukiswa kwezamabhizinisi, emikhiqizweni ye-infra, kanye nokwakhiwa kwezimboni lapho izindlela ezivamile zokumba zingavinjwa yizimo zomhlaba ezingazinzile noma ukugeleza okweqile. Ukufakwa kwe-wellpoint kubaluleke kakhulu ekwakhiweni komhlabathi okuqinile, kunciphisa ingozi yokuhlala ezindaweni ezithintekayo, futhi kuvumela amaqembu ukuthi asebenze ezimfudlaneni ezibhalwe kahle noma nphezulu ezindaweni ezinzima zokuhamba kwamanzi. Uxhumano phakathi kokusebenzisa kahle indlelakuphuma kwe-wellpoint kanye nezinhlelo zokuthola nezokwakha ezilungile kudala isixazululo sokulawula amanzi angaphansi esithembekile, esisebenzayo, esixhasa ukusebenza okuhle kokwakha izisekelo ezijulile nemisebenzi yokwakhiwa komhlaba. Ikhwalithi yemishini, ulwazi lomlobi, kanye nokuhlolwa okuphelele kwesayithi sezinto zomhlaba, ukuhlolwa kwezindawo, kanye nezimo zokuhlala kwamanzi angaphansi kuyazinikeza isisombululo sokusebenza kahle kokuhlanganiswa kwezinhlelo nezimpumelelo zomsebenzi ekuphatheni amanzi angaphansi phakathi nesigaba sokwakha.
Izithuthi zokushaya ezisebenzayo zokuhlola izixhumi zibalulekile emishinini eyamukelekayo yokukhipha amanzi esikhashana esetshenziswa kuyo yonke imikhakha yokwakha izisekelo nezokuthuthukiswa komhlaba. Lezi zisetshenziswa eziyingqayizivele zisebenzisa ukuminyaniswa okuphezulu ukuze zifake izixhumi zokuhlola emhlabathini opholiswa ngamanzi noma amanzi akhuphukayo, zenza ukuba abakhi bakhuphule izigaba zamanzi emhlabeni futhi balawule ukukhipha amanzi ngesikhathi sokuhlasela, ukwakhiwa kwephansi, kanye nemisebenzi yokuphakamisa ejulile. Indlela yokufaka evibratory inezinzuzo ezinkulu uma kuqhathaniswa nezindlela zokufaka ezijwayelekile, kwehlisa isikhathi sokufaka, kunciphisa ukuphazamiseka komhlaba, futhi kuvumela ukulawula ukujula kokufaka ngokunembile ezimweni ezithambile. Izithuthi zokushaya ezisebenzayo ziwusizo kakhulu ezindaweni zokwakha zasezindaweni zasemadolobheni lapho ukunciphisa umsindo nokudluliselwa okuncane kokuminyaniswa kuzinto ezizungezile kuyizinto ezibalulekile, kwenza kube kuhle ukufaka izinhlelo zokuhlola ezilula ezindaweni ezivalekile nezindawo ezithintekayo eduze kwezinsiza ezikhona. Inqubo yokufaka usebenzisa izithuthi zokushaya ezisebenzayo ibandakanya ukufaka lezi zisetshenziswa kumathuluzi, izimayini, noma ezikhwama ezithile, ezishiya futhi zishayise iphayiphi lokuhlola emhlabathini ngenkathi zifaka pressure ye-vertical ehlelekile. I-frequency yokuminyaniswa kanye ne-amplitude kulungiswa ngokuya ngohlelo lomhlabathi, kusukela emhlabathini we-clay owamahle kuya emsandini we-gravel, kanti abasebenzi bayalungisa amandla kanye nezinga lokufaka ukuze baphathe izimo ezihlukene zomhlaba. Le ndlela ikhululekile kakhulu kwi-silt, i-fine sands, kanye ne-profiles yokuhlanganiswa kwemhlaba lapho ukulawula amanzi emhlaba kudingeka ukuze kuthuthukiswe nokukhuphukela okuphephile. Izithuthi zokushaya ezisebenzayo ngokuvamile zingaba nezinga lokufaka le-8 ukuya ku-30 amamitha kuye ngezinga lokusebenza kwezimoto kanye nezimo ezingezansi, ngomsebenzi wokufaka ophumelelayo kakhulu kunemikhuba eminye. Indlela yokuminyaniswa kontrola ukwakhiwa komhlaba kangcono kunezindlela zokuphosa, okubaluleke kakhulu eduze kwephili ezikhona, izisekelo, kanye nezintambo zokusebenza lapho izindlu ezithintekayo kufanele zinciphise kakhulu. Izinhlelo zokukhipha amanzi ze-wellpoint ezifakwe ngezinhlaka zokushaya ezisebenzayo zithunyelwa ezimbonini ezahlukahlukene zokuhlola unyaka omdeep sebende jenel, ukuhanjiswa kwezimoto nezitolo, umsebenzi wezisekelo zezimbhobho, kanye nokulawulwa kwamanzi angaphantsi kwemikhakha emikhulu yokuphakamisa. Lezi zinhlelo zilawula bobabili amanzi aphakeme nezikhashana, zigcina izimo zomsebenzi ezomile endaweni yokuhlasela ngenkathi zivimbela ukujula kwemfundisi kanye nezinkinga zokuphosha emhlabathini ophukile. Abakhi bathola inzuzo emsebenzini wokuqhuba izithuthi zokushaya ezisebenzayo, ezivumela ukusiza kalula, ukufakwa okuphindaphindayo kwemigqa eminingi ye-wellpoint, kanye nokwandiswa okulula kwezinhlaka njengoba kuhamba. Le mishini iyahambisana neziteshi ezijwayelekile ze-wellpoint, izikhalazo, nezinhlelo zokwelapha, ihlanganisa kahle nezinhlelo zokwakha zomhlaba. Izithuthi zokushaya ezisebenzayo zanamuhla zifaka izilawuli ze-frequency ezishintshashintshayo, ukuqapha okujulekwethu ngesikhathi sangempela, nezinhlelo zokuyeka ezenzakalayo ukuze zithuthukise ukusebenza ngenkathi zivikela izakhiwo ezizungezile nezinsiza ezivela ekudluliseni okungaphezulu kokuminyaniswa ngesikhathi sokufaka izisekelo ezibalulekile.
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