Imigama e-6 ephambene yokusebenzisa Imoto ye-Concrete Paving

Ukuthuthukiswa Kwemisebenzi Yokwenza Ngqo

U umsebenzi wokuhluka kwezindlela ezinamathuthi i-pavers liyathumela futhi liyavumela ikhonkreti kwi-section enye ye-pavement, lithi lapho ezinye izindawo zokuhlangana. Ngokusheshayo okuya kuma-15 foot per minute, le ndawo ithula amandla ekuhlaleni kahulumeni ngama-60% kunokwenzeka ngendlela enkulu, ngokwesibani nezindleko zokulayisha. Imodeli enobukhulu obuphakeme inemigca yokuhleleka ngokugcwele ngokwesistimu ye-laser, iyakuhlela kahle kanye nokungena kwezindleko, ngaphakathi kwe-±1.5 mm. Futhi lapho iyathunyelwa nezinye i-interface zokusebenzela ezinikeza izinkinobho ngokushesha kwekhonkreti futhi kuyathola amathuluzi aphelele, iyakwazi ukunikeza imiphumela efanayo kwezinye izimo, kubantu abasebenzisa izindleko zemoto nezindlu zokukhiqiza.

Ukulinganisa Iindleko: I-Slipform vs Fixed-Form

Izinhizo zokwenza amapavhumanti zingasebenza ngama-500-800 amaphizi amaphakathi ngosuku ngokulinganisa ne-200-350 amaphizi amaphakathi ngezinhizo ezinhlelwe, okuzokunika ukhobo lokusebenza okuphezulu kwe-40-60%. Lokhu kuholela kakhulu kuzo zinhlansi ezinkulu, ngoba ukubeka okuphelele kwezinhizo kuthintela izikhathi ezimbuyelo. Abasebenzisi bekuzothola ukukhula kweqembu elingu-22% futhi izindleko ezingu-18% ezincane ngalokho kwezimali ehlukene” (Umphakathi wamaPavhumanti we-Asphalt, 2022). Ukuhlanjelana ngokuncane kwezilapi zokupelula zingakunceda ama-Dollar 120/iyure kuzo zindleko zomsebenzi (izindleko eziyagunyaziswa kwe-2023), futhi amagxekwa esimbuyelo kuthintela ukubangelwa kwezinye izindleko zokuphepha ngama-34% ngokulinganisa nezinhizo ezinhlelwe.

Izinhizo zokushandlela izinto ngokuzenzekela

Ukuphatha imaterial kuzo zindlela zokulayisha izinkawuli zikhuphuka izindleko zomsebenzi ngenkathi engu-25% ngokwelethu. Kuthuthukiswa ukusebenza kwezindlela zokuthunyelwa zokuthunyelwa ngokuzenzakalelayo ukuze kuthunyelwe imaterial ngemva, ngaleyo ndlela kungcinwe ukuthunyelwa ngendlela yokuthunyelwa ngokwezinhleke. Izinhlobo zokulawula uhlelo lwamanzi ukuze kuthunyelwe ngaphandle kokuthi kungcono. Abasebenzi bakhokha amapositini wokukhombisa, ukuthintana nezinto ezihlisa futhi ezibangela izindleko. Lo msebenzi futhi ungeneza ukuthishwa kwezinto futhi kwenzeke izindleko zokusebenza ngokwezindleko.

Imithwisto yokuncipha kwezibukhulu

Kusukela ku-2020, ukuthola kwezindlela zokulayisha izinkawuli zikhuphuka amakhulu kwezibukhulu ngenkathi engu-28% esikhundleni. Izindaba zezindlela ezingcono ukuthi kudinga abasebenzi abangu-10 okwamanje kutholakala abasebenzi abangu-6-7. Lezi zindleko zikhombisa ukuthola izindleko ezingu-$120-izindleko ezingu-$230 ngokwehato lomsebenzi, nasezindlela zokulawula ngolayitha zikhuphuka izindleko eziphezulu (32%) ngokuthi kungcono ukulayisha ngendlela yokuthi. Izibukhulu ezingcono zikhombisa ukuthi izindaba zokusebenza zikhuphuka futhi kungenzeka ukuthi kungcono.

Izindleko zokuphepha kwezinye izinsizakalo

Izimbo zokwenza izindlela ezimodeniwa ngokuzenzekela ukuphumelela kwezimali ngokuphelelwa kwezinye izimbo, ukwehlisa amaphoyinti wokuphosa okwenziwa ngabantu. Izinhloso zokulandelwa ngokushesha kuhulumeni izinkinobho zokumisa izindlela ngokuphelelwa.

Ukukhombisa Isimo se-Guide seLaser

Imigca ye-Laser-guided iyabelana nezilungiselelo zokuphumelela kwe-±2 mm - okungu-40% okuphumelelayo kunezindlela zokulandela (i-Journal yeRoadTech 2023). Ukulandelana ngokuphelelwa kuhlanganisa izindlela ezingenakuphumelela ngaphandle kokuthintana nezinto ezenziwayo.

Ukunciphisa Ukuthuthwa ngokwemigca Emuva Kwemisebenzi

Izimbo zokuvibration nezimbo zokwenza izindlela ngokuzenzekela ukunciphisa isikhathi esifakwa kumisebenzi ngama-65% nasekunciphisweni kwezindlela zokuvula ngama-50%. Ukulayisha izinhloso kuhulumeni ukugcina okuphumelelayo ngokulingana nezimo zokuvula, ukuthi i-99.7% yezindlela ziyakwazi ukuvumela i-ASTM C1042 ngokuphelelwa ngaphandle kokulungisa.

Imigca yokunciphisa ukuphaphelwa kwezinto

Ukubhomba Kwesilika Ngokusebenzisa i-Slipform Paver Ukuthuthukisa ukusebenzisa i-Concrete Aggregate ephindwe yabusekelo kwezindawo zokulayisha izindawo zokuhamba ngezindawo zaseflorida i-Slipform pavers ingathola ukuncipha kwezindleko ngama-18-22% ngokulawulwa kwezilika (2023 pavement efficiency studies). Ukulayisha kuyindlela ethulwana noma yiliphi isigaba esithile siqukethwe ngokucophelela futhi amaphindwa aphumelela kwezilika evela kugxothwe, okungathola ukuncipha kwezilika ephesheni ngama-20-35%. Lokhu kuhluke nezindlela ezisetshenziswayo kuphela xa ukususa kwezindawo kuyinto engatholwa ngama-8-12% yezilika ezilayishwe. Ngokusebenzela izicelo, iteknoloji ye-slipform ingathola ukuncipha kwezindleko ngokwemi kwa toni 6.8 ngosuku olulodwa (National Asphalt Pavement Association 2024).

Izindlela Zokusebenzisa i-Slipform Paving

Ukusebenzisa i-slipform paving kudingeka kuthuthukwe, kusukela kuzindlela zokulayisha amaphoyinti kuya kuzindlela zokulayisha izindawo zokuhamba ngaphandle kokuthilela ukukhanya noma ukuphephile kwezindawo.

Ukuthuthukwa Phakathi Kwezindlela Zokulayisha Amaphoyinti Noma Izindlela Zokulayisha Izindawo Zokuhamba

Imigwaqo yemindeni yokulandela inqanawa engaphezu kwe-16 inches ukwesekwa kwegciwane, inqanawa efakwe ngokuchaneka (10–40 feet) nezindawo ezingaphakathi 98%. Imigwaqo yemaphetha akhankanywa ukwenza amanqanawa amancane neziciko ezinhle.

Ixesha lokudlala ngokulandelana nezulu

Imigwaqo yokwenza amanqanawa iqinisekisa ukulandela ixesha ngokulandelana nezulu. Ukwenyelwa ngokuhlanganisa nokunyusa okuphakathi kwezulu kuvumela ukulandela kwi-5°C, ukunciphisa iseshwa ngokulandelana nezulu ngama-34%. Imicelo yokubona ukuphela kwenkxalabo iqinisekisa ukulingana phakathi kwezinto eziqinileyo nezinto ezingenakho ngexesha lenkxalabo. Ezi zinto ezintsha zinceda ukunceda kwi-12–18 xesha ebalulekileyo ngokulandela amanqanawa ahlelweyo ngokwemigaqo ye-ASTM C94.

Imibuzo Evame Ukubuzwa

Yintoni eyi-slipform paver?

I-Slipform paver yikhene esetshenziswa ukulaywa amadoti afakwe ngokwezindilinga, amadoti amabili nezinye izinsukwana. Iyakhishwa nokugcina amandla kwiqondo elilodwa, kubangelwa ukuthi kudingeka kwenziwe ngokwesandiso futhi kuhlanganise ukulaywa okuphephile.

Yini i-slipform paver enhancisa ukusebenza kahle?

Izinkiniso zokulaywa ezingaphakathi enhancisa ukusebenza kahle ngokuthi kuthathe isevende esiphansi, kuthathe ukuphaphuka kwamandla kancane futhi kuthathe ukukhula kwezinkiniso. Isetshenzisa ukuzothutha futhi kwenzeke izilungiselelo ngokushesha ukufinyelela iziphumo eziphephile nezifanayo, okungenzeka ukuthola amaphetho.

Yiziphi izintetho zokusetshenzisa izinkiniso zokulaywa ezingaphakathi noma kwezindlela ezifakwe ngokudla?

Izintetho zokusetshenzisa izinkiniso zokulaywa ezingaphakathi kufaka phakathi ukukhula kwezokuhweba, ukunciphisa izindleko zasevende, ukunciphisa ukulungiswa ngemva kwalokho, ukunciphisa ukuphaphuka kwamandla, futhi ukuthole kwezilayo ezifanayo. Zinikeza amaphetho amakhulu ekusebenzeni ngokulingana nezindlela ezifakwe ngokudla.

Kungakhona izinkiniso zokulaywa ezingaphakathi zisetshenziswa kuzindlela ezahlukene?

Yebo, amapaver amayisayo kusebenza ngokuhambelana nezimo zokugula ngokuba kuyindlela yokuvumela ukuguqula okujwayelekile kwezulu nokubona kwezulu okuphumelela kakhulu ekushayeni. Lokhu kunciphisa izintdelayo eziphakathi nezimo zokugula futhi kuhlinzekisa ukuthi kuvunyelwe amastandela.