Ukulinganisa Ukuphatha Okwamandla Kusuka KuSlipform Paving: Okuphatha Kangakanani Isikhathi?

Okunconywayo Kwamandla Nezinqumo Ze Ukwehla kwezindawo engenazo izimu

Ukugcina Ukulayisha Nokusebenzisa Izinkqubo Ezihlangene Kuziphaza Izikhathi Zokuphula

Ukudweba kwe-slipform kususa lezikhathi ezihlukene eziphazanywayo esizibona ngazo ngezindlela ezigcwele njengoko kubeka ikonkreti ngokuphindezela njengoba imishinini ihamba phambili. Izindlela eziqeda zidinga izinyathelo ezahlukene njengekuthi kumise amafomu, kuthunyelane, kugcwalisa ikonkreti, kuholda ukulahlekwa kwakho, emva koko kususa konke futhi. Ukudweba kwe-slipform kuyangena wonke lezo zindlela - ukuvibrata, ukugcwalisa, ukulayisha, nokugcina - kumsebenzi omuhle ungakhohlwa. Inkohlaka yezikhathi iyisigaba esikhulu futhi, ngaphezu kuka-15 kuya ku-20 isigaba esingasuswa ekugcineni kanye nokususa. Iziphumo zakhiwo ezintsha nezigidi ze-laser namasense ethinta inhlalakahle engaqondani kunciphisa ukugcwaliswa okufanayo nokulinganiso okuphumelelayo kweyaphansi. Lokhu kubangela lezihlukanukwano ezingavamile phakathi kwezifundaba ezibalulekile kangaka kuma-highways ukuba ibe neminyaka yokusebenza. Futhi, masithi kube khona, lezihlukanukwano ziphandisa ububi bezimali. Ngokudweba kwe-slipform, lezindawo eziproblematika zidlula kabusha, lokhu kufana nezimo zokuthembeka ezithiweyo ku-AASHTO R 30 nakwi-ASTM C94.

abasebenzi abancane kangaka 40–60% kudingeka—Ngaphandle Kokuphazanyiswa Kombono Wemoto Noma Ukulungiswa Kwemvume

Ukusebenzisa ukulayisha kwe-slipform kususa kakhulu izidingo zokusebenza kwisite ngaphezu kuka-40 kuze kube ngu-60 iphesenti ngokwesimo. Isigaba sabezinja esizinzile kusasa ngaphandle kuka-12 kuya kuya ku-18 abasebenzi ngasinye ishifti kusasa luhlanya kuya kuba ngu-5 noma 7 abantu xa kusebenziswa le ndlela ngendlela ephethilwe. Ngubani umbuzo wale theku? Kungoba manje okuqukethwe kwekodwa kuthathelwa phambili yizinhlelo ezinamandla, kufana nokuseta iingcinga, ukuvibhretha ikonkreti ekusitsheni, nokufumana ukugcina okupheleleyo ngokushesha. Futhi, kuyadingeka kuthi kungekho muntu angaphakade emva kwalokho akukhangeleke. Le zinhlelo ezivulwe ngaleserayitha zingasebenza ngaphezu kwe-2 milimitara noma ngapha kwezilinganiso zokuphakama, futhi izikhumbula ezifakiwe kuzenzela ukuthi zibe yimposiso ngokupheleleyo khona-pha konke okuqhubekayo kungabi nzima noma ngisheshayo. Uma sibuka izinombolo zezenzo kusihlalo seFederal Highway Administration's Long Term Pavement Performance ubonakala ukuthi izindlela ezilayiwa ngendlela ye-slipform zinezinkinga eziphansi ngokuphindaphindwa kuka-40 iphesenti ezingxenyeni zazo kunazo ezintweni ezidala. Ngoko ke, kubonakala ukuthi ukunciphisa imali yokusebenza ayikho into engenakuba yinto ethintwayo yobuchwepheshe.

Imfihlo Yokuqinisa Ngendlela Esiyayeni: Kungani Ukugcinwa Kwezikhawu Kuyakhiwa Isikhathi

Imfihlo Yokuhandlinga Izikhawu: UkuFaka, UkuLandelana, UkuCaphula, NeKuphinda Usebenzise Ngasinye Isikhawu

Ngaphandle kwezinyathelo ezihlotshanisiweyo, kukhona izimpawu zokulungiswa ngamandla kumunye ngamunye wamazwe. Kufanele kubeke amathanzi noma amathambo, baphake phansi ngcono ukuze bafakwane nezilingo ezingcono, baphinise ngempela, bazuke uma besekela, babuyeke ngcono, babheke ukuthi abizange bakhohlwe, bese bahlala kabusha ekugcineni. Konke lokhu kudinga abasebenzi abagqimile abaziyo kabangcolweni okubayenzayo, futhi kuthatha isikhathi eside. Yini na le yizinsuku abantu bayishintsha kusenzo esisodwa kuvesibhali, kuhlukanisa umsebenzi wabo kabusha. Umphakathi waseMerika we-Concrete Pavement ubhalile ukuthi lo mlando wonke uyedwa izikhathi eziphinda-iphindwa kuzo ezingu-35 kuya ku-50 kunalokho kubangelwa uma akukho manje amathanzi. Kulamathuba aphinde aphinde ngamadodana njengamanzini noma amashidi, le mimodela yokuhluka yokuhluka iyaphakama ngexesha. Izilinganiso zezinsuku zihamba phantsi kuzo ezingu-18 kuya ku-22 kunalokho okungahlanganiswa ngendlela yokususa indlela apho akukho manje amathanzi ayasetshenziswa ekwakheni. Kutheni okuphumelelayo? Amathuba ayehluleka, izigwe letshintshwa emva kwesimo sezulu sokungadingeki kangako, kanye namaphaya aphelele angaphelelwa ngokunjalo. Lokhu konke kuzocubungwa uma abasebenzi basekela ngcono ngaphandle kokuthinta lezinyathelo eziphuthumayo.

Ukuthuthukiswa Kwe-Teknoloji: Kungani Iziphindezelo Zamanje Ukwehla kwezindawo engenazo izimu Izimakhine Zihlela Isikhathi Nokucopheleka

Ukulawula I-Greyidi Ngokuzenzakalelayo, Ukuguquguquka Kwesithotho Ngemini-Njalo, Nokulungiselela Ngokuhola Kwe-GPS

I-pavers zasendulo ezinengedvuna zihlanganisa izinto ezintathu eziphatha ubuchwepheshe obunempilo, ubume, nokulinganisela ngexesha lokukhula. Indlela yokulawula ubungakanani yomgca othile iyisebenzisa indlela yelaser noma indlela yokokumkela kwegazi ukuphazamisa kabini iindlela zokuthanda kanye nezigaba zokuphakama, kwaye yenzeke utshintsho kufunekayo ukuze umkhiqizo ophelile uphile kwindawo enokuba phantsi kwamathilimithara angama-1.5. Ngokubanzi, iisense okugcinwe ngaphakathi kuyiphazamisa indlela ethintelwa yi-concrete kanye nekhanda lakhe, emva koko iyishintsha ifrekwensi kanye nebumba yokuthinta ngokufanelekileyo. Oku kukunceda ukufinyelela ekukhokelelweni kakuhle ngaphandle kokuchitha ngokutshintsha kangcono noma ukwahluka kwemali. Xa kufika kwindlela yokulungelelanisa, i-GPS yokokumkela engenziwa ngiteknoloji ye-RTK eyayiqhubeka ikuvumela abasebenzi ukuzijikela kwiindawo ezinxulumeneyo njengezigaga, iirampa, kunye neendawo zokuhlangana ngobume obuncinane bokuya kwi-centimeter. Lonke lo xabiso lwemithombo elihlanganisiweyo linokuhlala liphule imisebenzi engaphezu kwamathuba ayisithathu, likunceda ukuba iphinde iphume phantsi kwezingu-300 ukuya kuma-600 ngamashumi amahlanu ngamnyaka, kwaye libekise ixesha lonke lomsebenzi kuqala kumabili ngamathathu ngelixa isebenzela kakhulu nezigaba ezibalulekileyo njenge-ASTM C94, AASHTO M 148, kunye nezigaba ezininzi zeendawo zezigaba zokuhamba ngokulinganisela kwebhola kanye nobume bomthombo.

Imibuzo Evame Ukubuzwa

Yini ukwehla kwezindawo engenazo izimu ?

Ukulayisha ngendlela yokulayisha i-concrete ngokudluliswa kancane kube yintambo, kuquka izinyathelo ezifana nokuhlukunyezwa, ukugcinwa, ukulungiswa, nokugcwalisa ngemisebenzi eyodwa.

Kunjani ukuthi ukulayisha ngendlela yokudluliswa kunciphisa isikhathi kunemithodi engcono?

Lendlela ikhupha isikhathi ngokuthintela izikhathi zokuthembeka nokuvula amafomu, ibe yindlela ekudluliswa ngcono ngokushesha, ihlanganisa ukuncipisa isikhathi ngama-15-20% ngokudluliswa kancane.

Yiziphi izindlela zokusebenza okukhuthaza ukulayisha ngendlela yokudluliswa?

Lendlela ikhupha ukudinga komsebenzi ngama-40-60%, ikuvumela umkhandlu ukuthi kuphuleke ngokubanzi ngaphandle kokuthintela ubumnandi noma ukuzimisela.

Kungani ukulayisha ngendlela engaqondakaliyo yamafomu engcono ayikwazi ukwenza lokho?

Ukulayisha ngamafomu angcono ayenkilima kakhulu ngokuba kudinga isikhathi sokufaka, sokulungisa, sokususa, sokucima, sokulondoloza, nokusebenzisa futhi amafomu, okhawuleza kakhulu umsebenzi futhi kongezisa isikhathi nesilingo sezinhlelo.

Iziphi izinkokhelo ezifakwa kumanikiniki wokulayisha ngendlela yokudluliswa namuhla?

Amashini akhetho esimweni esisha amisela ukubophelela kwezivumelwano, ukulungisa kanye nokulungisa kwesikhathi ngamasekhondi, ne-aligning ezigcineniwe GPS ukuze akhuthaze isivinini, ubumnandi, nomboniso wokulingana ngexesha lokukhula.