Imishini Yokugaya ye-DY-300: Isixazululo Esiphelele Sokuvuselelwa Komphezulu We-Asphalt Osebenza Kahle

Ukuphuthuma Kokuvuselelwa Kwe-Asphalt Okusebenzayo: Izinselele Zemboni​

Ngaphambi kokuhlola amakhono e-DY-300, kubalulekile ukuqonda izinselele eziphuthumayo ezibhekene namaqembu okulungisa i-asphalt emhlabeni jikelele. Ngokusho kwe-International Road Federation (IRF), imigwaqo ye-asphalt engaphezu kuka-40% yomhlaba wonke idinga ukulungiswa phakathi neminyaka engu-5-7 yokwakhiwa, kodwa izindlela ezivamile ziyahluleka ukuhlangabezana nalesi sidingo. Isibonelo, ukugaya ngesandla—ngokuthembela kumathuluzi aphathwayo—kungacubungula kuphela amamitha-skwele angu-20-30 kuphela omhlaba ngehora, kuyilapho imishini yokugaya emidala ivame ukushiya izindawo ezingalingani ezidinga ukushelela okwengeziwe, okwandisa isikhathi sephrojekthi kanye nezindleko.​

Ngaphezu kwalokho, imfucuza yezinto ezibonakalayo iyinkinga enkulu. Ukulungiswa kabusha kwendabuko kususa izingqimba ze-asphalt eziphelele (ngokuvamile 5-10 cm) noma ngabe kulimale kuphela i-1-2 cm ephezulu, okuholela ekulahlekeni kwempahla elahliwe ngo-30-40% okuphelela ezindaweni zokulahla udoti. Lokhu akugcini nje ngokukhulisa izindleko zemvelo kodwa futhi kukhulisa nezindleko zokukhiqiza i-asphalt entsha. Ukuvalwa kwemigwaqo kwenza inkinga ibe nkulu: ukuvalwa komzila owodwa emgwaqweni omkhulu omatasa kungabangela ukubambezeleka kwezimoto okubiza kakhulu.

1,200–3,000 ngehora, ngokusho kwe-American Association of State Highway and Transportation Officials (AASHTO). Lezi zinselele zigcizelela isidingo sesisombululo esilinganisela isivinini, ukunemba, kanye nokusimama—okuyilokho kanye okunikezwa umshini wokugaya we-DY-300.​

Amakhono Ayinhloko e-DY-300: Ubuchwepheshe Obusezingeni Eliphezulu Bokuvuselela​

I-DY-300 yakhelwe ukubhekana nemikhawulo yezindlela zendabuko ngokusebenzisa izici eziningi ezithuthukisiwe ezibeka phambili ukusebenza kahle, ukunemba, kanye nobungane bomsebenzisi. Embindini wayo, umshini usebenzisa uhlelo lwe-hydraulic olunamandla aphezulu oluhambisana nesigubhu sokugaya esingamamitha angu-1.8 ububanzi—esibanzi kakhulu kunesigubhu esingamamitha angu-1.2–1.5 sabancintisani abaningi. Lesi sigubhu esibanzi sivumela i-DY-300 ukuthi imboze amamitha-skwele angu-120 obuso be-asphalt ngehora, ukwanda okungu-40–60% kokukhiqiza uma kuqhathaniswa nemishini yokugaya ejwayelekile. Isibonelo, umgwaqo onemizila emibili ongamakhilomitha angu-1 (odinga amamitha-skwele angu-4,000 okugaya) ungaqedwa ngamahora angu-34 kuphela nge-DY-300, uma kuqhathaniswa namahora angu-50–60 ngamamodeli amadala.​

Ukunemba kungenye impawu ye-DY-300. Ihlonyiswe ngobuchwepheshe bokulawula ukujula obuqondiswa yi-GPS kanye nokulinganisa nge-laser, umshini ugcina ukunemba kokujula kokugaya okungu-±1 mm—okubalulekile ekuqinisekiseni ukulungiswa kwendawo efanayo ngaphambi kokuphinda kufakwe. Lokhu kuqeda isidingo sokushelela okwesibili, ukunciphisa izinyathelo zephrojekthi kanye nokunciphisa imfucuza yezinto ezibonakalayo. Isigubhu sokugaya ngokwaso sifakwe amazinyo e-tungsten carbide angu-80, ahlelwe ngendlela ejikelezayo ukuqinisekisa ukusika okuqhubekayo nokuvimbela ukudabuka kwendawo. La mazinyo angashintshwa futhi, ngokuphila kwamahora angu-50-80 okusetshenziswa okuqhubekayo—okuphindwe kabili kunamazinyo ensimbi ajwayelekile—okunciphisa izindleko zokulungisa kanye nesikhathi sokungasebenzi.​

Okuhlangenwe nakho komsebenzisi akunakwa. I-DY-300 inomklamo wekhabhini onama-control e-ergonomic, isibonisi sesikrini esingu-10 intshi, kanye nokubonakala kwama-degree angu-360—kunciphisa ukukhathala komqhubi ngesikhathi sokusebenza isikhathi eside. Umshini futhi uncane (amamitha angu-6.2 ubude, amamitha angu-2.5 ububanzi) futhi une-radius yokujika yamamitha angu-4.8, okwenza ifaneleke ezindaweni zasemadolobheni ezinemigwaqo emincane noma amakhona aqinile. Kumaphrojekthi amakhulu, i-DY-300 ingahlanganiswa nohlelo lokuhambisa oluzinikele olufaka ngqo i-asphalt egayiwe emalolini, kuqedwe isidingo sokugcina okuphakathi kanye nokwenza kube lula ukusebenza.​

Izicelo Zomhlaba Wangempela: Ukubonisa Ukusebenza Kahle​

Ukusebenza kwe-DY-300 akugcini nje ngokwemfundiso—kuye kwaqinisekiswa kumaphrojekthi amaningi okuvuselela aphezulu kuwo wonke amazwekazi. Ngo-2023, idolobha laseBerlin, eJalimane, lasebenzisa imishini engu-12 ye-DY-300 ukuvuselela amakhilomitha angu-15 emigwaqo yasemadolobheni ngaphambi komcimbi omkhulu wamazwe ngamazwe. Lo msebenzi wawudinga ukugaya amamitha-skwele angu-60,000 omhlaba we-asphalt ngokujula okuhlosiwe okungu-2 cm (ukubhekana nokuqhekeka kanye nemifantu). Besebenzisa ubuchwepheshe be-GPS be-DY-300, ithimba lafinyelela ukujula okufanayo ku-98% wendawo, kunciphisa imfucuza yezinto ezibonakalayo ngo-35% uma kuqhathaniswa nephrojekthi yabo yango-2021 (eyayisebenzisa imishini yokugaya emidala). Lo msebenzi waqedwa ezinsukwini ezingu-28—amasonto amabili ngaphambi kwesikhathi esibekiwe—okunciphisa ukuphazamiseka kwezimoto enkabeni yedolobha.​

E-United States, uMnyango Wezokuthutha waseTexas (i-TxDOT) wasebenzisa imishini ye-DY-300 ukulungisa ingxenye engamakhilomitha angama-20 ye-Interstate 35, eyayinezimbobo ezinkulu kanye nemisele ngenxa yethrafikhi enkulu yamaloli. Uhlelo lwe-DY-300 olune-torque ephezulu lwayivumela ukuthi ikwazi ukugaya i-asphalt eqinile (ecinene iminyaka engaphezu kwe-10) ngaphandle kokunciphisa ijubane, kuyilapho uhlelo lokuhambisa luvumela ukulayishwa okuqhubekayo kwezinto ezigayiwe. I-TxDOT ibike ukwanda okungu-42% ekukhiqizeni kwansuku zonke uma kuqhathaniswa nemishini yabo yangaphambilini, kanti i-asphalt egayiwe yaphinde yasetshenziswa endaweni (ixutshwe ne-aggregate entsha) ukuze ikhiqize u-30% we-asphalt entsha esetshenziselwa ukuvuselela indawo—ukunciphisa izindleko zezinto ngo-$120,000.​

Lezi zimo ziqokomisa inzuzo ebalulekile ye-DY-300: ikhono layo lokuzivumelanisa nezidingo zephrojekthi ezahlukahlukene, kusukela emigwaqweni yasemadolobheni kuya emigwaqweni emikhulu, futhi ilethe imiphumela ehambisanayo maqondana nesivinini, ukunemba, kanye nokonga izindleko.​

Ukuzinza: Ukuhambisana Nemigomo Yezemvelo Yomhlaba Wonke​

Esikhathini sokugxila kakhulu ekusimeni, i-DY-300 ivelele ngomklamo wayo onobungani nemvelo. Njengoba kushiwo, ukugaya ngokunemba komshini kunciphisa imfucuza yezinto ezibonakalayo ngo-30-40% uma kuqhathaniswa nezindlela zendabuko. Ngaphezu kwalokho, i-asphalt egayiwe (eyaziwa ngokuthi i-recycled asphalt pavement, noma i-RAP) ayilahlwa nje kuphela—ingaphinde isetshenziswe ibe yizingxube ezintsha ze-asphalt. Inqubo yokugaya ye-DY-300 ikhiqiza i-RAP enobukhulu obufanayo bezinhlayiya, okwenza kube lula ukuhlanganiswa nezingxube ezintsha (kufika ku-50% we-RAP kwezinye izimo), kunciphisa isidingo sama-aggregates angenasici kanye ne-bitumen.​

Ukusebenza kahle kwamandla kungenye indlela enamandla. I-DY-300 isebenzisa iphampu ye-hydraulic eguquguqukayo elungisa ukuphuma kwamandla ngokusekelwe kumthwalo, kunokuba isebenze ngokugcwele njalo. Lokhu kunciphisa ukusetshenziswa kukaphethiloli ngo-15-20% (uma kuqhathaniswa namaphampu ahlala isikhathi eside), kunciphisa ukukhishwa kwekhabhoni cishe ngamathani angu-0.8 emahoreni ayi-100 okusebenza. Lo mshini uphinde uhlangabezane nezindinganiso zokukhishwa kokugcina kwe-Euro Stage V kanye ne-EPA Tier 4, okuqinisekisa ukulandelwa kwemithetho eqinile yezemvelo yomhlaba wonke.​

Isiphetho: I-DY-300 njengeSikhulisi Sokuvuselelwa Kwe-Asphalt Okuhlakaniphile​

Umshini wokugaya we-DY-300 ungaphezu nje kwento yokusebenza—uyisisombululo esibanzi esibhekana nezinselele eziyinhloko zokuvuselelwa kobuso be-asphalt: ukungasebenzi kahle, ukungalungi, imfucuza, kanye nomthelela emvelweni. Ngokuhlanganisa umkhiqizo ophezulu (amamitha-skwele angu-120 ngehora), ukunemba okumangalisayo (±1 mm ukulawula ukujula), kanye nomklamo oqhubekayo (imfucuza encishisiwe kanye nokukhishwa kwegesi), i-DY-300 ivumela izinhlangano zezokuthutha kanye nabakhi benkontileka ukuthi baqedele amaphrojekthi ngokushesha, ngezindleko eziphansi, futhi ngomthelela omncane emvelweni.​

Njengoba ingqalasizinda yomhlaba wonke ikhula futhi isidingo sokulungiswa kahle sikhula, i-DY-300 imelela ikusasa lokuvuselelwa kwe-asphalt—ikusasa lapho imigwaqo ilungiswa khona ngokushesha, ngokuphephile, nangokusimeme, okuqinisekisa ukuthi amanethiwekhi ezokuthutha ahlala ethembekile amashumi eminyaka ezayo. Kunoma iyiphi inhlangano efuna ukuthuthukisa izinqubo zayo zokuvuselelwa kwe-asphalt, i-DY-300 akuyona nje inketho—iyisisombululo esiphezulu.