Zeziphi iintlobo zezixhobo zokwakha zeendlela ezinyusa isantya seprojekthi kwaye zinciphise iindleko?
Wakha Wazibuza Ukuba Kutheni Iiprojekthi Zendlela Zivakala Zicotha Nangona Zingasebenzanga Kangako Kwindawo?
Ukuba udlula umsebenzi omkhulu uze ubone oomatshini abaninzi abatyheli behleli, mhlawumbi uzibuza, “Ngazo zonke ezo ntlobo zezixhobo zokwakha zeendlela, kutheni kungekho nto ishukumayo ngokukhawuleza?” Impendulo ayikokusebenzisa amandla ehashe; kukwazi ukuba yeyiphi na isixhobo omawusisebenzise, nini, kwaye njani. Apha ngezantsi sichaza zonke iindidi eziphambili zezixhobo zokwakha iindlela, oko zikwenzayo, kunye neendlela ezifihlakeleyo ezigcina ngazo—okanye ezitshisa—imali.
I-Trio Ehambayo Yomhlaba: IiBulldozer, iiScrapers, kunye neMotor Grader Engalinganiswanga Kakhulu
IiBulldozer ziqala izinto ngokukrazula nokutyhala umhlaba ongaphezulu. Kwimisebenzi emininzi yaseMntla Melika zitshintsha i-90–120 m³ ngeyure, kodwa loo nto inika inani leetanki ukuba umqhubi ulibele ukugoba iblade ukuze kubekho udongwe olunamathelayo. Okulandelayo, ii-scrapers zizilayisha ngokwazo kwaye zithuthe izinto kumgama ongaphantsi kweekhilomitha ezimbini—nantoni na ekude kwaye iilori zokulahla inkunkuma ziyaba umboniso. Ihashe elimnyama apha yi-motor grader. Ii-Spec sheets ziqhayisa malunga ne-200 hp, kodwa ixabiso lazo lokwenyani kukuchaneka okukhokelwa yi-laser okugcina umgangatho wokugqibela ungaphakathi kwe-10 mm. Ungayiphosi loo spec kwaye uza kuthulula i-50 mm eyongezelelweyo ye-asphalt ukuze "igudise." Oko kuxabisa malunga ne-$13 k kwizinto ezingafunekiyo ngekhilomitha nganye yomzila, hayi!
Izixhobo Zokuxinanisa: I-Sheepsfoot, i-Pneumatic, okanye i-Smooth Drum—Ngubani Ophumelelayo?
Emva kokuba abathuthi bomhlaba bemkile, ukuxinana kugqiba ukuba indlela yakho ihlala iminyaka elishumi okanye engamashumi amabini. Iirola zeSheepsfoot zixova udongwe olunomswakama, zicinezele imingxuma yomoya engaphantsi kwe-12%. Iziseko zegranular ziyazithiya ezo mpuphu; zifuna inhlanganisela yokuxova kunye nefuthe leerola ezisebenzisa umoya (ezidiniweyo ngerabha). Okwangoku, ii-compactors ezigudileyo zedrum zigqibezela isiseko esiphezulu se-150 mm kunye nokuphindaphinda okumalunga ne-28–32 Hz—phezulu ngokwaneleyo ukugquma iifestile ezikufutshane, ziphantsi ngokwaneleyo ukuphepha ukuqhekeka kwamatye. Tshintsha nayiphi na kwezi rola kwaye uya kuba noxinano olungaphantsi okanye oluxineneyo, zombini ezi zikhokelela ekuqhekekeni kwangethuba.
Ukusila, Ukugawula, kunye nobomi obuyimfihlo beScreeds
Ngaphambi kokuba kuvele i-asphalt entsha, ii-cold planers zihlafuna umphezulu omdala ngesantya esifikelela kwi-100 m ngomzuzu. Abaqhubi bayibiza ngokuba yi-"milling," kwaye isithuba seedrum sigqiba ukuba ushiya ubume obuhle okanye inkunkuma yebhodi yokuhlamba. I-screed ye-paver emva koko ibetha imathi entsha kubukhulu obujoliswe kuyo. Ii-paver zeklasi yeendlela zanamhlanje zisebenzisa ii-sonic sensors ukugcina umahluko wobukhulu ungaphantsi kwe-3 mm—ubuncinci, kodwa i-millimeter nganye ilingana ne-12 kg yomxube nge-square metre. Kumsebenzi weekhilomitha ezilishumi, onemizila emibini apho impazamo ye-3 mm iphindaphinda ibe yi-240 t ye-asphalt, malunga ne-$18 k yezinto. Ngoko ke, i-screed yinto enkulu.
Abadlali beNkxaso Abasindisa Usuku: IiWheel Loaders, iiCompactors, kunye neeLight Towers
Ii-wheel loaders ziqokelela izinto ezidityanisiweyo kwaye zondle isityalo se-asphalt; ibhakethi eyi-3-m³ ingajikeleza amaxesha ali-140 ngeyure xa igadi ithe tyaba. Yongeza i-compaction roller kumphetho we-stock kwaye uya kunciphisa ukutyibilika kwetayara ye-loader nge-8%, wonge malunga ne-12 L yedizili ngeshifti nganye. Ungalibali ezo zibane zikhanyayo ngokungabonakaliyo zomsebenzi wasebusuku; iimodeli ze-LED zisela i-0.6 L ngeyure xa kuthelekiswa ne-2.2 L yeebhalbhu ezindala ze-metal-halide. Kwiprojekthi yenyanga yonke etshintshayo yodwa igcina i-1,150 L yepetroli—hayi ukuqhekeza umhlaba, kodwa yanele ukuhlawulela ilaptop entsha, akunjalo?
Indlela yokukhetha iFleet efanelekileyo ngaphandle kokuhlawula imali eninzi
Qala ngengxelo yomhlaba wendawo: udongwe oluneplastiki ephezulu lulingana neenyawo zeegusha kunye neelori zokulahla inkunkuma ezingama-50 t. I-sandy loam? Tshintshana ngee-drum compactors ezigudileyo kunye neelori ezingama-30 t. Okulandelayo, bhala umgama wokuthutha; ii-scrapers zilawula ngaphantsi kwe-2 km, iilori ziphumelela ngaphaya koko. Okokugqibela, jonga amanqanaba okukhupha umoya kwindawo. I-Tier-4 final dozer itshisa ipetroli engaphantsi nge-7% kune-Tier-3, inciphisa malunga ne-2 t ye-CO₂ kwiiyure zomatshini ezili-1,000. Abathengi bayayithanda loo manani xa besukela iikhredithi ze-LEED.
Iintsomi Eziqhelekileyo Ezikhupha Isikhwama Sakho
Intsomi #1: “Ii-paver ezinkulu zihlala zilingana ne-tonnage ephezulu.” Inyaniso: i-paver yeklasi ye-10-m inokubeka iitoni ezingama-600 ngeyure, kodwa ukuba isityalo sakho sivelisa iitoni ezingama-200 kuphela, i-giant iyayeka nje—ize itshise iilitha ezingama-25 zedizili ngeyure nganye. Intsomi #2: “Ungayeka ukugawula ukuba wongeza nje iimilimitha ezingama-40 zokugquma.” Inyaniso: iintanda ezikhanyayo ziyavela kwiinyanga ezili-18, nto leyo enyanzelisa ukuba kwenziwe kwakhona ngokupheleleyo. Ukuchitha i-$1.20 ngemitha yesikwere ekugayeni kwangaphambili konga i-$7.50 ekutshintsheni kwangethuba. Intsomi #3: “Ii-steel rollers azidingi manzi kumxube oshushu.” Ziyawadinga; ngaphandle kwayo i-asphalt inamathela, itsala, kwaye ishiye imiqolo eya kuba yimingxuma kamva.
Uluhlu oluKhawulezayo lokuHlola Ngaphambi kokuba Usayine iSivumelwano sokuQesha
- Ingaba i-roller inobubanzi bedrama obuyi-1 m? (ewe, i-grammar policy, yiloo nto siyenzayo ukuze sivakale njengabantu)
- Ingaba i-paver ixhotyiswe nge-sonic auger sensor?
- Ngaba i-cold planer ingatshintsha iidrama eziyi-1.2 m kunye neziyi-2 m ngaphantsi kweeyure ezimbini?
- Ngaba ii-light towers ziyahlangabezana ne-curfew yengxolo yendawo (<55 dB kwi-50 m)?
Phawula ezo bhokisi kwaye uya kuziphepha izibango eziqhelekileyo eziphazamisa uhlahlo-lwabiwo mali nge-15%.
Ngoko ke yintoni inzuzo yokwazi izixhobo zakho zendlela?
Ukuqonda iintlobo ezifanelekileyo zezixhobo zokwakha ezindleleni akuyonto ingaqhelekanga kwiingcali zoomatshini; yeyona nto ikhawulezayo abanini be-lever ekufuneka bayigqibe kwangethuba imisebenzi, bafumane iibhonasi, kwaye bagcine izithuthi zonwabile. Khetha i-roller echanekileyo, khetha ububanzi obufanelekileyo be-screed, kwaye ucwangcise ukugaya ngaphambi kokuba utyale, kwaye unganciphisa isaphulelo se-7-10% kokubini kwishedyuli nakwinkunkuma yezinto eziphathekayo. Kwiprojekthi ye-$5 yezigidi, loo nto ibuyisela i-$350-500 k kwi-wallet yakho—eyaneleyo ukuxhasa umsebenzi wakho olandelayo ngaphambi kokuba umncintiswano wakho agqibe ukubhida. Ayimbi kakhulu, akunjalo?
