(1) Ukuze kuqinisekiswe ukuthi iphansi lepayipi lisondelene nesisekelo futhi lilawula ukuphakama kwe-eksisi nomthambeka wepayipi, ipayipi le-PVC-U lisazosetshenziswa njengesisekelo somcamelo.Ngokuvamile, ungqimba olulodwa kuphela lwe-sand cushion elingu-0.1M eliwugqinsi olungenziwa enhlabathini evamile.Ukuze uthole isisekelo senhlabathi ethambile, lapho indawo engaphansi komhlaba ingaphansi kwamanzi angaphansi komhlaba, ungqimba lwetshe noma amatshe anogqinsi olungekho ngaphansi kuka-0.15m kanye nosayizi wezinhlayiyana zetshe elingu-5 ~ 40mm kufanele kugandaywe, futhi ungqimba lomcamelo wesihlabathi olunezingqimba. ugqinsi olungekho ngaphansi kuka-0.05m kufanele lugandaywe kuso ukuze kube lula ukuzinza kwesisekelo.I-groove kufanele igcinwe engxenyeni yokuxhumana yesokhethi kanye nesokhethi yesisekelo ukuze kube lula ukubekwa kwesokhethi, bese igcwaliswa ngesihlabathi ngemuva kokufakwa.Ikhona le-axillary phakathi kwephansi lepayipi nesisekelo kufanele ligcwaliswe ngesihlabathi esimahhadlahhadla noma isihlabathi esimaphakathi ukusonga ngokuqinile ingxenye yepayipi eliphansi ukuze kwakheke ukusekela okuphumelelayo.
(2) Ngokuvamile, amapayipi afakwa ngesandla.Amapayipi anobubanzi obungaphezu kuka-3m noma ipayipi elikhulu kuno-dn400mm angaphakanyiselwa emseleni ngezintambo ezingezona ezensimbi.Lapho ufaka ipayipi lesokhethi, isokhethi izofakwa eduze kwendlela yokugeleza kwamanzi futhi isokhethi izofakwa ngokumelene nesiqondiso sokugeleza kwamanzi ukusuka phansi komfula ukuya phezulu.Ubude bepayipi bungasikwa ngesaha lesandla, kodwa isigaba kufanele sigcinwe siqondile futhi siphansi ngaphandle kokulimala.Ukufakwa kwepayipi elincane lobubanzi kungenziwa ngesandla.I-baffle yokhuni isethwe ekugcineni kwepayipi, futhi ipayipi efakiwe ihambisana ne-axis futhi ifakwe esokhethi nge-crowbar.Emapayipini anobubanzi obukhulu kuno-dn400mm, i-hand hoist namanye amathuluzi angasetshenziswa, kodwa imishini yokwakha akufanele isetshenziselwe ukusunduza amapayipi endaweni yawo.Iringi yerabha izoba lula ukusebenza futhi umphumela wokuvala wendandatho yerabha uzonakwa.Umphumela wokuvala wendandatho yenjoloba eyindilinga awumuhle, kuyilapho umphumela wokuvala wendandatho yerabha emise okukhethekile enokumelana nokuguga okuncane nokuvimbela ukugingqika kungcono.Isixhumanisi esibonakalayo esijwayelekile sisebenza kuphela kumapayipi angaphansi kuka-dn110mm.Ipayipi elijikayo elinezimbambo kufanele lisebenzise ipayipi elihlangene kanye ne-adhesive eyenziwe ngokukhethekile ngumkhiqizi ukuze kuqinisekiswe ikhwalithi yesixhumi esibonakalayo.
(3) Isixhumi esibonakalayo esivumelana nezimo kuzokwamukelwa ukuze kuxhunywe amapayipi kanye nomthombo wokuhlola, futhi izixhumo zamapayipi ezinosokhethi zingasetshenziselwa ukuxhuma.Ikhola kakhonkolo ye-Precast ingase isetshenziselwe ukuxhuma.Ikholomu yekhonkrithi yakhiwe odongeni lokuhlola kahle, futhi udonga lwangaphakathi lwekhola kanye nepayipi livalwe ngezindandatho zenjoloba ukuze zenze uxhumano oluguquguqukayo.Ukusebenza kwesibopho phakathi kodaka lukasimende ne-PVC-U akukuhle, ngakho-ke akufanelekile ukwakha amapayipi noma ukufakwa kwamapayipi ngokuqondile odongeni lweshafu yokuhlola.Indlela yongqimba ephakathi ingamukelwa, okungukuthi, sebenzisa ungqimba lwe-adhesive yepulasitiki ngokulinganayo endaweni engaphandle yepayipi le-PVC-U, bese ufafaza ungqimba lwesihlabathi esomile esimahhadla kuso.Ngemva kokuphulukiswa kwemizuzu engu-20, ungqimba oluphakathi nendawo olumahhadlahhadla lungakhiwa.Ingakhelwa emgodini wokuhlola ukuze kuqinisekiswe inhlanganisela enhle nodaka lukasimende.Emigodini, amachibi kanye nezindawo zenhlabathi ethambile, ukuze kuncishiswe ukungalingani phakathi kwepayipi nomthombo wokuhlola, indlela ephumelelayo iwukuba uqale uxhume ipayipi elifushane elingekho ngaphezu kwama-2m ngomthombo wokuhlola, bese ulixhuma nalo lonke. ipayipi elide, ukuze kwakheke uguquko olubushelelezi phakathi komehluko wokuhlala phakathi komthombo wokuhlola kanye nepayipi.
(4) Ipayipi eliguquguqukayo lokugcwalisa umsele lithwala umthwalo ngokomsebenzi ohlanganyelwe wepayipi nomhlabathi.Impahla yokugcwaliswa ngemuva kanye nokubumbana kokugcwaliswa kwangemuva komsele kunomthelela omkhulu ekulimaleni nasekuthwaleni umthamo wepayipi.Uma i-deformation modulus ikhudlwana futhi izinga lokucinana kwe-backfill liphakeme, liba lincane ukuwohloka kwepayipi kanye namandla okuthwala okukhulu.Ukuklama nokwakhiwa kufanele kucatshangelwe ngokucophelela ngokuvumelana nezimo ezithile.Ngokungeziwe emithethweni evamile yobunjiniyela bamapayipi, ukugcwaliswa kwe-backfill kumele futhi kuthathe izinyathelo ezidingekayo ezihambisanayo ngokuya nezici zepayipi le-PVC-U.Ukugcwaliswa kwe-backfilling kuzokwenziwa ngokushesha ngemva kokufakwa kwepayipi, futhi akuvunyelwe ukuma isikhathi eside.Izinto zokugcwalisa i-backfill ngaphakathi kwe-0.4m ukusuka phansi kwepayipi ukuya phezulu kwepayipi kufanele zilawulwe ngokuqinile.Kungasetshenziswa amatshe agxotshiwe, amatshe, isihlabathi esimaphakathi, isihlabathi esimahhadla noma inhlabathi enhle embiwe.Uma ipayipi litholakala ngaphansi kwendlela yokuthuthwa futhi nendawo egandayiwe yakhiwe ngemva kokubekwa, umthelela wokugcwaliswa okungemuva komsele esakhiweni esigandayiwe uyocatshangelwa.Ububanzi obusuka phansi bepayipi ukuya phezulu kwepayipi buzogcwaliswa ngemuva futhi buhlanganiswe ngesihlabathi esimaphakathi nesiqinile noma ama-chips amatshe ezendlalelo.Ukuze kuqinisekiswe ukuphepha kwepayipi, akuvunyelwe ukugxoba phakathi kuka-0.4m ngaphezu kwendawo engaphezulu yepayipi ngemishini yokunyathelisa namathuluzi.I-coefficient yokuhlanganisa yokugcwalisa emuva izoba nkulu noma ilingane no-95% ukusuka phansi kwepayipi ukuya phezulu kwepayipi;Ngaphezu kwama-80% phakathi kuka-0.4m ngaphezu komphezulu wamapayipi;Ezinye izingxenye zizoba zikhulu kunama-90% noma zilingane no-90% Ngesikhathi sokwakhiwa ngenkathi yezimvula, ukunakwa kuzophinde kuqashelwe ukuze kuvinjwe amachibi emiseleni kanye nokuntanta kwepayipi.
(5) Ukuhlolwa kwamanzi avaliwe noma ukuhlolwa kwegesi evaliwe kungasetshenziselwa ukuhlola ukuqina ngemva kokufakwa kwepayipi.Ukuhlolwa komoya ovaliwe kulula futhi kuyashesha, okulungele kakhulu isivinini sokwakha esisheshayo sepayipi le-PVC-U.Kodwa-ke, alikho izinga lokuhlola kanye nemishini yokuhlola ekhethekile okwamanje, edinga ukuqhutshekwa kufundwe.Ukuqina kwepayipi le-PVC-U kungcono kunepayipi likakhonkolo, futhi isixhumi esibonakalayo sendandatho yenjoloba enhle singavimbela ngokuphelele ukuvuza kwamanzi.Ngakho-ke, ukuvuza okuvumelekile kokuhlolwa kwamanzi avaliwe epayipi le-PVC-U kuqinile kunalelo payipi likakhonkolo, futhi awukho umthethonqubo othize e-China.I-United States ibeka ukuthi ukuvuza okungu-24h ngekhilomitha yobude bepayipi akumele kudlule u-4.6l nge-mm yepayipi ububanzi, okungasetshenziselwa ireferensi.
Isikhathi sokuthumela: Mar-16-2022