Akatswiri Opanga Misewu Yaikulu ku Middle East Akufunika Ma Reflector Oteteza Misewu Omwe Amakhala Ooneka Patali — Zosankha Zowunikira Zokhala ndi Aluminiyamu Pamapulojekiti Okhala ndi Zowala Zochepa
Kwa katswiri wodziwa bwino ntchito za msewu wa ku Middle East kapena gulu logula zinthu za anthu onse lomwe likuyang'ana zowunikira zachitetezo cha pamsewu kuti lipeze malo atsopano osinthira msewu kapena pulojekiti ya zomangamanga za m'mphepete mwa nyanja, mtunda wowonekera pansi pa mikhalidwe ya magetsi otsika, chitetezo cha IP67/IP68 cha fumbi ndi kulowa kwa madzi, ndi mawonekedwe a chizindikiro chozikidwa pa aluminiyamu pamodzi zimatsimikizira ngati chizindikirocho chingakwaniritse zofunikira zowonekera za mamita 200-300 ndi moyo wautumiki wa UV wa zaka 5-7 womwe pulojekiti ya zomangamanga za m'chigawo nthawi zambiri imatchula. Muzochita zathu zonse pothandizira ogula pulojekiti ya zomangamanga za m'chigawo ku Saudi Arabia, UAE, Qatar, Oman, Kuwait, ndi Bahrain pakupeza zizindikiro za msewu ndi pulogalamu yokhazikitsa misewu, kusiyana kwa mtengo pakati pa chizindikiro chozikidwa pa pulasitiki ndi chizindikiro chozikidwa pa aluminiyamu nthawi zambiri kumakhala 30-50 peresenti, pomwe kusiyana kwa nthawi yayitali kwa UV ndi kusiyana kwa IP67/IP68 kwa chilengedwe ndikofunikira pakukhazikitsa misewu ya m'chipululu ndi m'mphepete mwa nyanja komwe pulojekitiyi imayang'ana kwambiri. Nkhaniyi ikufotokoza za kufananiza kwa mizere itatu yodziwika bwino ya misewu yolumikizidwa ndi alloy ya pulojekiti ya zomangamanga za misewu ya Regional, ndi zolemba zogwira ntchito kuchokera kwa kontrakitala wa misewu wa Riyadh ndi pulojekiti ya Dubai coastal expressway, chifukwa pulojekiti iliyonse ya zomangamanga ili ndi magulu osiyanasiyana a misewu, mawonekedwe osiyana a kuwala kwa UV, mawonekedwe osiyana a kuwala kwa mchere, ndi bajeti yosiyana ya kukhazikitsa yomwe imayendetsa mawonekedwe a chizindikiro.
1. Chifukwa Chake Opanga Makontrakitala a Misewu Yaikulu ku Middle East Amagwiritsa Ntchito Makonzedwe Odzipereka a Aluminium-Backed Reflector
Kwa akatswiri ambiri opanga zomangamanga za misewu ya ku Middle East, pulogalamu yowunikira chitetezo cha pamsewu nthawi zambiri imapereka zochitika zitatu zosiyana zoyika zomwe zimagwirizana ndi mapangidwe atatu osiyana a zizindikiro zothandizidwa ndi aluminiyamu. Choyambirira choyika ndi kukhazikitsa msewu wa m'chipululu, komwe ndi komwe kumadziwika kwambiri pamsika wa misewu ya Regional, ndipo chizindikiro pankhaniyi nthawi zambiri chimaperekedwa kwa mbale yolumikizira aluminiyamu yokhuthala ya 1.0-1.2 mm kuti igwire ntchito yowunikira UV ya maola 5,000-8,000 pachaka komanso kutentha kwa madigiri 60-70 Celsius komwe kumadziwika kwambiri ndi Regional desert road. Chochiwiri choyika ndi kukhazikitsa msewu wa m'mphepete mwa nyanja, komwe ndi chochitika chachiwiri chodziwika kwambiri pamsika wa Regional road, ndipo chizindikiro pankhaniyi nthawi zambiri chimaperekedwa kwa mbale yolumikizira iyi yokhuthala ya 1.2-1.5 mm kuti igwire ntchito yopopera mchere ya 5-7 g/m3 komanso chinyezi cha 95-100 peresenti chomwe kukhazikitsidwa kwa msewu wa m'mphepete mwa nyanja ya Regional coastal road nthawi zambiri kumakumana nacho.
Chochitika chachitatu chokhazikitsa ndi kukhazikitsa ngalande, chomwe ndi chochitika chachitatu chodziwika bwino chokhazikitsa zowunikira pamsika wamisewu ku Middle East, ndipo chizindikiro pankhaniyi nthawi zambiri chimayikidwa pa nyumba yosungiramo zizindikiro yotsekedwa ya IP68 kuti igwire ntchito yoyeretsa ngalande ndi madzi othamanga kwambiri komanso chinyezi cha 90-100 peresenti chomwe kukhazikitsa ngalande nthawi zambiri kumakhala nacho. Chifukwa chomwe kontrakitala m'modzi wa Regional road nthawi zambiri amapeza mawonekedwe awiri kapena atatu osiyana a chizindikiro chozikidwa ndi aluminiyamu ndikuti zochitika zitatuzi zimakhala ndi mawonekedwe osiyanasiyana owonekera pa chilengedwe, bajeti yosiyana yokhazikitsa, ndi zolinga zosiyanasiyana za moyo wautumiki, ndipo mawonekedwe amodzi a chizindikiro sangakwaniritse zochitika zonse zitatu bwino. tsamba la malonda osonyeza chitetezo cha pamsewu imalemba mndandanda wa njira zodziwika bwino zojambulira zothandizidwa ndi aluminiyamu ndi njira zokhazikika zomangira bolt pa mtundu uliwonse wa chizindikiro, ndipo pepala laukadaulo la mtundu uliwonse limalemba mndandanda wa coefficient ya retroreflection, IP rating, ndi nthawi ya UV-stabilized top coat service yomwe kontrakitala wa zomangamanga za misewu ya Regional nthawi zambiri amatchula pulogalamu yotsimikizira kukhazikitsa.
2. Chidziwitso cha Mlandu wa Kontrakitala wa Riyadh Highway — Pulogalamu Yowunikira Msewu Wam'mphepete mwa Nyanja Yam'mphepete mwa Nyanja
Cholembedwa cha kontrakitala wa msewu waukulu wa Riyadh chikufotokoza za pulojekiti ya zomangamanga za msewu wa 200 km ku Riyadh-Dammam yomwe tidathandizira mu 2025 pa pulogalamu yopezera zowunikira zachitetezo cha pamsewu m'chigawo cha chipululu chamkati. Pulogalamu yam'mbuyomu ya kontrakitala wa polojekitiyi idagwiritsa ntchito chizindikiro chokhazikika cha pulasitiki chokhala ndi mtunda wowonekera wa mamita 100-150, ndipo pulogalamuyi inali kupanga zochitika zokonzanso chizindikiro 1-2 pa kilomita iliyonse ya msewu pachaka chifukwa mbale yosungira pulasitiki idasokonekera pansi pa kutentha kwa chilimwe kwa madigiri 60-70 Celsius ku Riyadh ndipo mtunda wowonekera wa mamita 100-150 sunakwaniritse zofunikira za mamita 200-300 pa liwiro la kapangidwe ka 120 km/h. Gulu la mainjiniya la kontrakitala wa polojekitiyi lidapempha kuti asinthe chizindikiro chokhala ndi aluminiyamu chokhala ndi mtunda wowonekera wa mamita 250-300 kuti akwaniritse liwiro la kapangidwe ka msewu komanso kuti akwaniritse kufunika kwa liwiro la kapangidwe ka msewu wa 120 km/h.
Chowunikira chitetezo cha pamsewu chomwe tidapereka kwa kontrakitala wa msewu wa Riyadh ndi cholembera cha aluminiyamu cha 100 x 100 mm chokhala ndi aluminiyamu yokhala ndi makulidwe a 1.2 mm cholumikizira aluminiyamu 6063-T5, chophimba cha 50-80 micron cholumikizira, choyikapo bolt yachitsulo chosapanga dzimbiri cha M8 cha 304, ndi coefficient ya 300-500 cd/(lux*m2) retroreflection. Chowunikira cha 1.2 mm cholumikizira ichi cholumikizira cha aluminiyamu chimatchulidwa chifukwa mbale yokhazikika ya 1.0 mm ingasinthe kutentha kwa chilimwe kwa madigiri 60-70 Celsius ku Riyadh, ndipo chophimba cha 50-80 micron cholumikizidwa chimatchulidwa chifukwa chophimba cha 20-30 micron cholumikizidwa chingazimiririke pakatha zaka 1-2 kuchokera pamene kuwala kwa UV ku Riyadh kukuwonekera. Chofunikira cha 300-500 cd/(lux*m2) retroreflection coefficient chafotokozedwa kuti chipereke mtunda wowoneka bwino wa mamita 250-300 womwe liwiro la kapangidwe ka msewu wa Riyadh-Dammam limafunikira nthawi zambiri. Pambuyo pa miyezi 12 yogwira ntchito, kontrakitala wa msewu wa Riyadh adanena kuti wachepetsa ndi 90 peresenti pazochitika zokonzanso zinthu komanso kutsatira mtunda wowoneka bwino wa mamita 200, zomwe ndi njira yopulumutsira ndalama zambiri pa ntchito yomanga misewu ya makilomita 200. Muyezo woyenera wa zomangamanga ku Middle East ndi Muyezo woyendetsera bwino wa ISO 22716 kuti magulu owunikira misewu aku Saudi Arabia agwiritse ntchito pulogalamu yotsimikizira zomangamanga za misewu, ndipo muyezo woyenera wa zizindikiro za m'chigawo ndi GCC Standardization Organisation GS 180 road street stud ndi muyezo wa zizindikiro zomwe kontrakitala wamkulu wa misewu ya m'chigawo nthawi zambiri amatchula pulogalamu yotsimikizira kukhazikitsa zizindikiro.
3. Chidziwitso cha Mlandu wa Dubai Coastal Expressway — Salt Spray Coastal Highway Reflector Program
Cholembedwa cha msewu waukulu wa ku Dubai chikukhudza pulojekiti ya zomangamanga za msewu waukulu wa ku Dubai ya makilomita 80 yomwe tidathandizira mu 2024 pa pulogalamu yopezera zowunikira zachitetezo cha pamsewu ya gawo la msewu waukulu wa kugombe. Pulogalamu yam'mbuyomu ya kontrakitala wa polojekiti ya zomangamanga idagwiritsa ntchito chizindikiro chokhazikika chachitsulo chokhala ndi galvanized chokhala ndi mtunda wowonekera wa mamita 150-200, ndipo pulogalamuyi inali kupanga zochitika zokonzanso za 0-1 pa kilomita iliyonse ya msewu waukulu pachaka chifukwa mbale yosungira zitsulo yokhala ndi galvanized idawonongeka mu 5-7 g/m3 ya mchere wa ku Dubai. Gulu la mainjiniya la kontrakitala wa polojekiti ya zomangamanga linapempha kuti asinthe chizindikiro chokhala ndi aluminiyamu chokhala ndi mtunda wowonekera wa mamita 200-250 kuti athetse vuto la dzimbiri la chitsulo komanso kukwaniritsa kufunika kwa 100 km/h pakupanga msewu waukulu wa kugombe.
Chowunikira chitetezo cha pamsewu chomwe tidapereka ku Dubai coastal expressway ndi chizindikiro cha aluminiyamu cha 80 x 80 mm chokhala ndi aluminiyamu yokhala ndi chivundikiro cha aluminiyamu cha 6063-T5 cha makulidwe a 1.5 mm, chophimba cha anodized cha 50-80 micron, choyikapo bolt yachitsulo chosapanga dzimbiri cha M8 cha 316, ndi coefficient ya retroreflection ya 250-400 cd/(lux*m2). Chowunikira cha anodized cha 1.5 mm cha alloy ichi chatchulidwa chifukwa mbale yodziwika bwino ya 1.2 mm ingawonongeke mu 5-7 g/m3 Dubai coastal salt spray pazaka 2-3, ndipo chophimba cha anodized cha 50-80 micron chatchulidwa chifukwa chophimba cha anodized cha 20-30 micron chingazime pakatha zaka 2-3 kuchokera pamene kuwala kwa UV ku Dubai kukuwonekera. Bolodi yachitsulo chosapanga dzimbiri ya M8 ya 316 yatchulidwa chifukwa bolodi yachitsulo chosapanga dzimbiri ya 304 ingawonongeke mu spray ya mchere wa m'mphepete mwa nyanja ya Dubai ya 5-7 g/m3 m'zaka 3-5, ndipo bolodi yachitsulo chosapanga dzimbiri ya 316 imapereka moyo wautumiki wa zaka 8-10 womwe kukhazikitsa msewu waukulu wa m'mphepete mwa nyanja ya Dubai nthawi zambiri kumafuna. Pambuyo pa miyezi 18 yogwira ntchito, kontrakitala wa msewu waukulu wa m'mphepete mwa nyanja ya Dubai adanena kuti ali ndi chiwongola dzanja cha 100 peresenti cha zero marker retrofit komanso mtunda wowonekera wa 100 peresenti wa mamita 200, zomwe ndi ndalama zopindulitsa pa ntchito yomanga msewu waukulu wa makilomita 80. Muyezo woyenera wa zomangamanga za m'mphepete mwa nyanja ya Dubai ndi Muyezo wa zomangamanga za m'mphepete mwa nyanja wa BSI Group kuti magulu owunikira misewu yodutsa m'mphepete mwa nyanja ku Dubai azitchula pulogalamu yotsimikizira zomangamanga za m'mphepete mwa nyanja, ndipo muyezo woyenera wa chizindikiro cha Middle East ndi GCC Standardization Organisation GS 180 highway road stud ndi muyezo wa chizindikiro womwe kontrakitala wamkulu wa misewu yodutsa m'mphepete mwa nyanja nthawi zambiri amatchula.
4. Kuyerekeza Kapangidwe ka Chiwonetsero cha Chitetezo cha Msewu Chokhala ndi Aluminiyamu Mbali ndi Mbali
Tebulo lotsatirali likufotokoza mwachidule kusiyana kwakukulu pakati pa makonzedwe atatu odziwika bwino a zowunikira zachitetezo cha pamsewu okhala ndi aluminiyamu pa projekiti ya zomangamanga za msewu wa Middle East. Manambalawa akuyimira kukhazikitsa kwa zomangamanga za Middle East komwe gulu lathu la mainjiniya lathandizira pazaka zisanu zapitazi, ndipo cholinga chake ndi poyambira kuwunikanso kwa zowunikira za zowunikira m'malo motsimikizira kuti ndi chitsimikizo chokhazikika cha wopanga.
| Kukula | Chipululu chamkati | Msewu Waukulu wa M'mphepete mwa Nyanja | Kukhazikitsa Ngalande |
|---|---|---|---|
| Mawonekedwe a Reflector | 100x100 mm sikweya | 80x80 mm sikweya | 60x60 mm sikweya |
| Kulemera kwa mbale yobwerera (mm) | 1.0-1.2 | 1.2-1.5 | 1.5-2.0 |
| Chophimba chodzola (micron) | 50-80 | 50-80 | 80-120 |
| Zinthu zoyika bolt | Chitsulo chosapanga dzimbiri cha 304 | Chitsulo chosapanga dzimbiri cha 316 | Chitsulo chosapanga dzimbiri cha 316 |
| Kuyesa kwa IP | IP67 | IP67 | IP68 |
| Kubwerezabwereza (cd/lux*m2) | 300-500 | 250-400 | 200-300 |
| Mtunda woonekera (m) | 250-300 | 200-250 | 150-200 |
| Moyo wautumiki wokhazikika ndi UV (zaka) | 5-7 | 5-7 | 7-10 |
| Kukana kupopera mchere (g/m3) | 2-3 | 5-7 | 5-7 |
| Kukana kutentha pamwamba (madigiri C) | 60-70 | 60-70 | 40-50 |
| Liwiro la kapangidwe ka msewu waukulu (km/h) | 100-120 | 80-100 | 60-80 |
| Mtengo woyambirira (chiwerengero choyerekeza) | 100 (zoyambira) | 120 | 140 |
5. Pepala Losankha Zowunikira za Chitetezo cha Msewu
Kwa katswiri wodziwa bwino ntchito amene akukonzekera njira yowunikira chitetezo cha pamsewu pa ntchito yatsopano yomanga msewu waukulu ku Middle East, gulu la mainjiniya lapanga pepala losankha njira yowunikira njira la magawo anayi lomwe katswiriyo angagwiritse ntchito poyambira. Gawo loyamba ndi kugawa msewu ndi liwiro la kapangidwe, zomwe zimatsimikiza mtunda wofunikira komanso coefficient ya retroreflection. Kugawa msewu nthawi zambiri kumagawidwa ngati msewu wa m'chipululu chamkati (liwiro la kapangidwe ka 100-120 km/h), msewu waukulu wa m'mphepete mwa nyanja (liwiro la kapangidwe ka 80-100 km/h), kapena kuyika ngalande (liwiro la kapangidwe ka 60-80 km/h). Gawo lachiwiri ndi njira yowunikira zachilengedwe, yomwe imatsimikiza makulidwe a mbale yobwerera ndi makulidwe a anodized coating. Njira yowunikira zachilengedwe nthawi zambiri imagawidwa ngati UV yochepa ndi salt spray (inland desert), UV yambiri ndi salt spray yocheperako (inland coastal), kapena UV yambiri ndi salt spray (coastal expressway).
Gawo lachitatu ndi kuyika chowunikira ndi IP rating, zomwe zimatsimikiza zinthu za bolt ya nangula ndi kutseka kwa nyumba ya chizindikiro. Kuyika chizindikiro nthawi zambiri kumafotokozedwa ndi bolt ya nangula ya M8 ndi kapisozi ya nangula ya mankhwala yoyika msewu wamba wa m'chipululu kapena m'mphepete mwa nyanja, kapena nangula wolumikizidwa wa stud woyika ngalande. Gawo lachinayi ndi moyo wautumiki ndi nthawi yokonza, zomwe zimatsimikiza zomwe UV-stabilized top coat specification ndi bajeti ya chizindikiro chobwezeretsanso. Kutulutsa kwa pepala lofufuzira ndi kasinthidwe ka chizindikiro kovomerezeka, makulidwe a backing plate olimbikitsidwa, coefficient yovomerezeka yobwezeretsa, ndi zinthu zomwe amalimbikitsa bolt ya nangula. Pepala lofufuzira limapezeka ngati ogula oyenerera apempha, ndipo gulu la mainjiniya lingathandizenso kuyimba kwa kanema kwa mphindi 30 kuti adutse zomwe zili mu pepala lofufuzira ndi kasinthidwe ka chizindikiro kovomerezeka pa projekiti yeniyeni ya Middle East.
6. ROI ndi Kusanthula Mtengo Wonse wa Eni ake
Kwa kontrakitala wa zomangamanga za msewu waukulu ku Middle East yemwe akuwunika ROI ndi ndalama zonse za umwini (TCO) wa pulogalamu yowunikira yothandizidwa ndi aluminiyamu, TCO ya zaka 5 ndiyo nambala yoyimira kwambiri, chifukwa nthawi ya zaka 5 imatenga nthawi yokonzanso chizindikiro cha zaka 3-5 ndi nthawi ya chitsimikizo cha kontrakitala wa msewu cha zaka 5-10. TCO ya zaka 5 imaphatikizapo mtengo wa chizindikiro choyambirira, mtengo wa bolt ya nangula ndi nangula wa mankhwala, mtengo wa ntchito yokhazikitsa, mtengo wa kukonzanso chizindikiro, ndi mtengo wopewedwa wa kasamalidwe ka magalimoto otsekedwa pamsewu zomwe kukonzanso chizindikirocho kungafune.
Pa pulojekiti ya zomangamanga za msewu waukulu wa Riyadh-Dammam wa makilomita 200 yokhala ndi mayunitsi owunikira 10,000, TCO ya zaka 5 ya pulogalamu yodziwika bwino yoyika chizindikiro cha pulasitiki nthawi zambiri imakhala 800,000-1,200,000 USD, TCO ya zaka 5 ya pulogalamu yoyika chizindikiro cha aluminium ya 1.2 mm nthawi zambiri imakhala 1,000,000-1,400,000 USD, ndipo TCO ya zaka 5 ya pulogalamu yoyika chizindikiro cha aluminium ya 1.5 mm nthawi zambiri imakhala 1,200,000-1,800,000 USD. Ndalama zosungidwa za TCO za zaka 5 za pulogalamu yoyika chizindikiro cha alloy poyerekeza ndi pulogalamu yoyika chizindikiro cha pulasitiki nthawi zambiri zimakhala 100,000-300,000 USD, ndipo ndalama zopewera zaka 5 zoyika chizindikiro nthawi zambiri zimakhala 200,000-400,000 USD. Gulu la mainjiniya likhoza kugawana chitsanzo cha TCO chomwe mainjiniya wogula zomangamanga za msewu ku Middle East angachigwiritse ntchito mogwirizana ndi kutalika kwa msewu, kuchuluka kwa chizindikiro chake, ndi mawonekedwe enieni a kuwonongeka kwa chilengedwe.
7. Ndondomeko Yosankha Zowunikira Zochokera ku Aluminium-Backed Reflector
Kwa kontrakitala wa zomangamanga za msewu wa ku Middle East yemwe akusankha pakati pa makonzedwe atatu a aluminiyamu-backed road reflector a polojekiti yatsopano ya zomangamanga za msewu, malangizo othandiza kusankha ndi kuyamba ndi kugawa msewu ndi mawonekedwe a kukhudzidwa ndi chilengedwe, ndikugwira ntchito kubwerera ku chisankho cha makonzedwe a chizindikiro. Pa msewu wa m'chipululu chamkati wokhala ndi liwiro la kapangidwe ka 100-120 km/h ndi maola 5,000-8,000 pachaka a UV, mawonekedwe a chipululu chamkati ndi chisankho chothandiza, chifukwa mawonekedwe a chizindikiro cha 100 x 100 mm amaphimba malo olumikizirana a chipululu chamkati ndipo mbale yobwerera ya 1.0-1.2 mm imasamalira kutentha kwa chipululu chamkati ndi mawonekedwe a UV. Pa msewu wobwererana wa m'mphepete mwa nyanja wokhala ndi liwiro la kapangidwe ka 80-100 km/h ndi mawonekedwe a mchere wa 5-7 g/m3, mawonekedwe a msewu wobwererana wa m'mphepete mwa nyanja ndi chisankho chothandiza, chifukwa mawonekedwe a chizindikiro cha 80 x 80 mm amaphimba malo olumikizirana a gombe ndipo mbale yobwererana ya 1.2-1.5 mm imasamalira mawonekedwe a mchere wa m'mphepete mwa nyanja.
Pa kuyika ngalande yokhala ndi liwiro la kapangidwe ka 60-80 km/h komanso kuyeretsa ngalande ndi madzi othamanga kwambiri, kapangidwe ka kuyika ngalande ndi chisankho chosasinthika, chifukwa mawonekedwe a reflector a 60 x 60 mm amaphimba mbali ya ngalande ndipo mbale yobwerera ya 1.5-2.0 mm imagwira ntchito yokhazikika yokhazikitsa ngalande. Kwa kontrakitala womanga nyumba yemwe akufuna kuphatikiza pulogalamu yopezera zizindikiro zachitetezo pamsewu ndi fakitale imodzi ya OEM/ODM, mzere wonse wazinthu za fakitale umaphimba mawonekedwe a chizindikiro chokhazikika cha aluminiyamu, mawonekedwe a chizindikiro chokhazikika cha pulasitiki, ndi banja logwirizana la zinthu zodziwika bwino za misewu, zomwe zikutanthauza kuti gulu logula likhoza kuchita kafukufuku wokwanira wa ogulitsa ndi mgwirizano umodzi wamtundu uliwonse pa mzere wonse wazinthu zoyimira misewu. Gulu logulitsa kunja lingaperekenso mtengo wolembedwa ndi zida zachitsanzo mkati mwa masiku 5-7 ogwira ntchito kuchokera pafunso la polojekiti, ndipo gulu la mainjiniya likupezeka kuti liwone kanema wa mphindi 30 kuti lidutse mawonekedwe a chizindikiro, kusankha makulidwe a backing plate, ndi kusankha kwa retroreflection coefficient ya pulojekiti yeniyeni ya zomangamanga za msewu wa Middle East. Mzere wonse wa zinthu zomwe fakitaleyi imapanga ukuphatikizapo ma geometries a 100x100 mm, 80x80 mm, ndi 60x60 mm okhala ndi aluminiyamu omwe amathandizidwa ndi pulogalamu yokhazikitsa zomangamanga za misewu ku Middle East.
Mafunso Ofunsidwa Kawirikawiri
Kodi mtunda wowonekera bwino wa chiwonetsero cha chitetezo cha pamsewu pa mapulojekiti a misewu ya ku Middle East ndi wotani?
Chiyerekezo cha mtunda wodziwika bwino wa chiwonetsero cha chitetezo cha pamsewu pa ntchito za msewu wa Middle East ndi mtunda wocheperako wa mamita 200-300 wowonekera pansi pa mikhalidwe yokhazikika ya nyali zowala kwambiri (pafupifupi 50-100 lux incident lighting pamalo oikira chizindikiro), ndi coefficient ya retroreflection ya 300-500 cd/(lux*m2) ya chizindikiro choyera ndi 150-300 cd/(lux*m2) ya mitundu ya zizindikiro zachikasu ndi zofiira. Mtunda wocheperako wowonekera wa mamita 200-300 watchulidwa chifukwa mtunda wokhazikika wa mamita 100-150 sungapatse dalaivala wamsewu nthawi yochitapo kanthu ya masekondi 5-7 pa liwiro la kapangidwe ka 80-120 km/h lomwe msewu wa Regional nthawi zambiri umatchula, ndipo coefficient ya 300-500 cd/(lux*m2) retroreflection yatchulidwa chifukwa coefficient yokhazikika ya 100-200 cd/(lux*m2) ingachepe msanga pansi pa maola 5,000-8,000 pachaka a UV ndi kutentha kwa madigiri 60-70 Celsius komwe kukhazikitsidwa kwa msewu wachipululu cha Regional nthawi zambiri kumakumana nako. Muyezo woyenera wa zomangamanga zachigawo ndi GCC Standardization Organisation GS 180 road stud ndi muyezo wodziwika womwe kontrakitala wamkulu wa msewu wa Regional nthawi zambiri amatchula pa projekiti ya zomangamanga zamisewu.
Kodi njira yodziwika bwino yowonetsera chitetezo cha pamsewu yokhala ndi aluminiyamu ndi iti pa kukhazikitsa misewu ya ku Middle East?
Chiwonetsero chachitetezo cha pamsewu chothandizidwa ndi aluminiyamu chomwe chimayikidwa mumsewu wa Middle East ndi mbale yolumikizira ya aluminiyamu yolumikizidwa ndi aluminium 6063-T5 yokhala ndi makulidwe a 30-50 micron anodized coating, geometry ya sikweya ya 80-100 x 80-100 mm, ndi choyikapo cha chitsulo chosapanga dzimbiri cha M8 cha 304. Mbale yolumikizira ya aluminiyamu yolumikizidwa ndi 1.0-1.5 mm yolumikizidwa ndi aluminium iyi imatchulidwa chifukwa mbale yolumikizira ya pulasitiki yokhazikika ingasinthe mawonekedwe ake pansi pa kutentha kwa madigiri 60-70 Celsius Regional surface ndipo mbale yolumikizira yachitsulo yolumikizidwa ndi galvanized ingazime mu spray ya mchere ya 5-7 g/m3 yomwe imayikidwa mumsewu wa Regional coastal, ndipo makulidwe a 30-50 micron anodized coating amatchulidwa chifukwa chophimba cholumikizira cha 10-20 micron anodized chingazime pakatha zaka 1-2 kuchokera pamene UV ikuwonekera. tsamba la malonda osonyeza chitetezo cha pamsewu imalemba mndandanda wa njira zodziwika bwino izi zosonyeza chizindikiro chogwirizana ndi alloy ndi njira zodziwika bwino zokhazikitsira bolt pa mtundu uliwonse wa chizindikiro.
Kodi muyezo wa IP wa zowunikira zachitetezo cha pamsewu m'misewu yayikulu ndi m'matanthwe a ku Middle East ndi wotani ndi wotani?
Ma IP rating achizolowezi a ma reflector a chitetezo cha pamsewu m'misewu yayikulu ndi ma tunnel ku Middle East ndi IP67 kapena IP68 ya malo oikira chizindikiro ndi chingwe cholowera, chokhala ndi kuya kwa 30-50 cm m'madzi poyesa kuonekera kwa maola 48 komanso kuthamanga kwa 100 kPa poyesa kuteteza fumbi kulowa. Ma IP67 rating achizolowezi aikidwa pamisewu ya Regional chifukwa ma IP54 achizolowezi amalola fumbi ndi madzi kulowa mu fumbi la Regional komanso kusefukira kwa madzi komwe kumachitika kawirikawiri m'misewu ya Regional coastal kapena wadi-crossing, ndipo ma IP68 aikidwa pa kuyika kwa tunnel ya Regional chifukwa kuyeretsa tunnel ndi madzi okwera kwambiri nthawi zambiri kumafuna ma IP rating apamwamba. Muyezo woyenera wa zomangamanga za Regional ndi IEC 60529 IP rating standard yomwe kontrakitala wamkulu wa Regional road ndi woyendetsa tunnel nthawi zambiri amatchula pulogalamu yotsimikizira kuyika kwa ma marker.
Kodi chinthu chowunikira chomwe chimagwiritsidwa ntchito powunikira chitetezo cha pamsewu chomwe chimawoneka bwino patali ndi chiyani?
Chizolowezi cha zinthu zowunikira zomwe zimagwiritsidwa ntchito powunikira chitetezo cha pamsewu chomwe chimawoneka bwino kwambiri ndi chinthu chowunikira cha micro-prism glass bead chokhala ndi miyeso ya 1.5-2.5 mm m'mimba mwake, kapena chinthu chowunikira cha micro-prism PMMA chokhala ndi mawonekedwe a ngodya ya 200-500 micron cube, cholumikizidwa ndi top coat ya UV-stabilized ya zaka 5-7. Chinthu chowunikira cha micro-prism glass bead chimatchulidwa chifukwa filimu yowunikira ya standard bead glass ingapereke 50-100 cd/(lux*m2) retroreflection yokha, ndipo chinthu chowunikira cha micro-prism glass bead chingapereke 300-500 cd/(lux*m2) retroreflection pa ngodya yowunikira ya madigiri 0.2-0.5 yomwe nyali ya msewu wa Middle East nthawi zambiri imapereka. Chowunikira cha PMMA cha micro-prism chaperekedwa pa ntchito ya bajeti ya msewu wa Regional yomwe imawononga ndalama zambiri, ndipo chowunikira cha PMMA chikhoza kupereka kuwunikira kwa 250-400 cd/(lux*m2) ndi moyo wautumiki wa UV-stabilized wa zaka 3-5. Chowunikira cha UV-stabilized cha zaka 5-7 chaperekedwa chifukwa chowunikira chapamwamba cha zaka 2-3 chingawonongeke mu maola 5,000-8,000 pachaka omwe amaikidwa mumsewu wa Regional.
Kodi nthawi yogulira ndi kukhazikitsa zinthu zowonetsera chitetezo cha pamsewu ku Middle East ndi yotani?
Nthawi yogulira ndi kukhazikitsa mapulojekiti owunikira chitetezo cha pamsewu ku Middle East ndi masabata 4-6 a chitsanzo chodziwika bwino cha chizindikiro kuchokera kwa ogulitsa OEM aku China, masabata 6-8 a chitsanzo chodziwika bwino cha geometry, ndi masabata 1-2 a oda yofulumira yokhala ndi njira yotumizira katundu wandege. Nthawi yodziwika bwino ya masabata 4-6 yogulira ndi yokwanira pa nthawi yokonzekera msewu wa Regional yomwe kontrakitala wa Regional road nthawi zambiri amagwira ntchito, ndipo nthawi yodziwika bwino ya masabata 6-8 yogulira nthawi zambiri imakhala chisankho chotsika mtengo cha malo osinthira msewu ndi kukhazikitsa mlatho wa msewu womwe umafuna geometry yosadziwika bwino ya chizindikiro. Nthawi yofulumira ya masabata 1-2 yogulira nthawi zambiri imakhala chisankho chotsika mtengo cha kukonzanso mwadzidzidzi kwa msewu komwe kontrakitala wa Regional road nthawi zina amakumana nako, ndipo gulu lotumiza kunja lingathandize kusintha kwa mtengo kwa maola 24 pa pempho la oda yofulumira. Muyezo woyendetsera bwino wa ISO 22716 imapereka dongosolo loyendetsera bwino lomwe magulu owunikira a makontrakitala am'deralo amatchula pulogalamu yoyenerera ogulitsa zizindikiro.
Zokhudza Wolemba
Mzere wonse wa zinthu zomwe fakitaleyi yapanga umaphatikizapo chowunikira chitetezo cha pamsewu chothandizidwa ndi aluminiyamu cha m'chipululu chamkati, mtundu wa pulasitiki wothandizidwa ndi ntchito zotsika mtengo, ndi banja la chowunikira chogwirizana nacho — zonse zalembedwa pa tsamba la zinthu za nbjge ndi tsamba la mbiri ya kampani ya nbjge.