Yuav Ua Li Cas Xam Kev Siv Xim thiab Cov Iav Los Ntawm Kev Cim Txoj Kev
Kev suav xim siv rau kev cim txoj kev pib nrog thaj chaw uas yuav tau txais cov khoom siv. Qhov ntev ntawm txoj kev ib leeg tsis txaus: ib mais ntawm 100 hli txoj kab khov kho, ib mais ntawm 150 hli txoj kab tawg thiab kev hla zebra txhua yam tsim cov cheeb tsam pleev xim sib txawv.
Xam qhov chaw cim ua ntej, hloov nws mus ua xim lossis thermoplastic ntau npaum li cas, thiab tom qab ntawd xam cov hlaws iav poob. Ntxiv cov nyiaj pub rau kev yuav khoom tsuas yog tom qab kuaj xyuas cov kev sib tw, cov lus qhia ntawm tus neeg muag khoom lossis cov ntaub ntawv pov thawj ntawm qhov chaw. Lub tshuab xam zauv tsis tuaj yeem cawm tus qauv kab tsis raug; nws tsuas yog yuav tsim cov lus teb tsis raug nrog kev ntseeg siab zoo kawg nkaus.
Xam Xim Rau Kev Cim Txoj Kev: Plaub Lub Qauv Tseem Ceeb
Thaj chaw cim = qhov ntev ntawm kab × qhov dav ntawm kab × qhov cim qhia
Qhov ntau ntawm cov thermoplastic = thaj chaw cim × tus nqi khoom siv tshwj xeeb
Qhov ntau ntawm cov hlaws iav = thaj chaw cim × qhov ceev ntawm cov hlaws uas tau teev tseg
Tus nqi yuav khoom = tus nqi xam × tus nqi pub nyiaj rau qhov project
Siv cov 'meter' los ntsuas qhov ntev thiab dav, yog li 100 mm dhau los ua 0.10 m. Rau cov thermoplastic, siv tus nqi kg/m² uas tau tshaj tawm lossis xam qhov hnyav los ntawm qhov tuab thiab qhov ceev. Rau cov xim kua txias, siv qhov tuab ntawm zaj duab xis ntub lossis cov ntaub ntawv npog ntawm cov chaw tsim khoom.
Kauj Ruam 1: Xam Qhov Chaw Cim Tseeb
Cov Kab Khoom thiab Cov Kab Uas Muaj Cov Cim
Ib txoj kab 1,000 m uas dav 100 hli npog 1,000 × 0.10 = 100 m² . Ib txoj kab uas muaj kab cim yuav tsum muaj tus cim qhia. Yog tias pleev xim 3 m ua raws li qhov sib nrug 6 m, tus lej yog 3 ÷ 9, lossis 0.333. Yog li ntawd, ib txoj kev 1,000 m uas muaj txoj kab tawg 150 hli npog 1,000 × 0.15 × 0.333 = 50 m² . Yog tsis quav ntsej qhov sib nrug yuav ua rau qhov kev txiav txim ntau dua peb npaug, uas yog ib txoj hauv kev kom tus thawj tswj tsev rau khoom nco ntsoov koj lub npe.
Kev hla, Xub thiab Cov Cim
Xam cov kev hla zebra, cov kab nres, thiab cov chaw nres tsheb los ntawm lawv cov duab geometry uas tau pleev xim. Kaum ob txoj kab hla uas ntsuas 4 m los ntawm 0.5 m npog 24 m² . Rau cov xub thiab cov ntawv sau, siv thaj chaw polygon uas tau pleev xim los ntawm daim duab CAD vim tias lub duab plaub fab ib puag ncig muaj cov chaw tsis tau pleev xim.
Kauj Ruam 2: Xam Kev Siv Xim Rau Cim Kev
Kev Siv Xim Cim Txoj Kev Thermoplastic
Qhov kwv yees muaj zog tshaj plaws siv tus nqi teev tseg rau cov khoom siv xaiv. SWARCO luam tawm ib lub tshuab SWARCOTHERM 30 uas tau sim ntawm 2.0 hli txheej tuab nrog 4.00 kg / m² ntawm thermoplastic thiab 0.35 kg / m² ntawm cov khoom poob rau . Ntawm 100 m², qhov ntawd sib npaug 400 kg thiab 35 kg ua ntej txhua qhov kev tso cai rau qhov project. Cov lej no yog rau lub tshuab khoom ntawd, yog li siv lwm daim ntawv qhia cov ntaub ntawv khoom siv thaum cov qauv lossis tuab hloov pauv.
| Piv txwv cim | Thaj chaw pleev xim | Thermoplastic ntawm 4.00 kg / m² | Cov khoom poob rau ntawm 0.35 kg / m² |
|---|---|---|---|
| Txoj kab khov kho 1 km, dav 100 hli | 100 m² | 400 kg | 35 kg |
| Kab kab sib dhos 1 km, dav 150 hli, qauv 3 m/6 m | 50 m² | 200 kg | 17.5 kg |
| 12 txoj kab hla, 4 m × 0.5 m | 24 m² | 96 kg | 8.4 kg |
Cov kev xam no siv cov nqi siv SWARCOTHERM 30 uas tau tshaj tawm. Lawv tsis yog cov nqi siv thoob ntiaj teb rau txhua yam khoom thermoplastic.
Xim Ua Los Ntawm Dej Thiab Xim Txias
Rau cov xim ua kua, ib square metre ntawm cov zaj duab xis ntub ntawm 1 hli xav tau ib litre hauv kev xav. Siv qhov ntim xim = thaj chaw × qhov tuab ntawm zaj duab xis ntub . Thaum tsuas yog qhov tuab ntawm zaj duab xis qhuav xwb, siv qhov tuab ntawm zaj duab xis ntub = qhov tuab ntawm zaj duab xis qhuav ÷ qhov ntim ntawm cov khoom khov .
Ib daim zaj duab xis qhuav 0.30 hli los ntawm cov xim uas muaj 60% ntawm cov khoom khov xav tau ib daim zaj duab xis ntub 0.50 hli, lossis 50 litres rau 100 m². Hloov 60% nrog tus nqi uas qhia hauv daim ntawv qhia txog cov xim uas xaiv es tsis txhob qiv tus lej yooj yim los ntawm lwm yam khoom.
Kauj Ruam 3: Xam Cov Khoom Siv Iav Bead
Cov lus qhia tshwj xeeb ntawm qhov project no yuav tsum muaj qhov tseem ceeb dua li qhov ceev ntawm cov hlaws dai dav dav. FHWA tshaj tawm tias cov nqi ntawm cov hlaws dai thermoplastic drop-on feem ntau yog li ntawm 6–12 lb ib 100 ft² , kwv yees li 0.29–0.59 kg/m² . Ntawm 100 m², qhov no sawv cev rau kwv yees li 29–59 kg. FHWA kuj sau tseg tias cov hlaws dai ntau dhau ploj mus los ntawm kev txau ntau dhau lossis tsis ua tiav, yog li kev siv lub hopper tsis zoo ib yam li qhov ntau uas khaws cia hauv kab.
| Thaj chaw pleev xim | Ntawm 0.29 kg/m² | Ntawm 0.35 kg / m² | Ntawm 0.59 kg/m² |
|---|---|---|---|
| 50 m² | 14.5 kg | 17.5 kg | 29.5 kg |
| 100 m² | 29 kg | 35 kg | 59 kg |
| 500 m² | 145 kg | 175 kg | 295 kg |
Qhov hnyav ntawm cov hlaws tsuas yog ib feem ntawm kev kuaj xyuas kev ua tau zoo xwb. FHWA piav qhia tias cov hlaws kheej kheej ua haujlwm tau zoo thaum kwv yees li 50% -60% ntawm lawv txoj kab uas hla tau muab tso rau hauv qhov cim. Cov hlaws zaum siab dhau tuaj yeem tso tawm hauv qab tsheb, thaum cov hlaws faus tob dhau ua rau pom qhov chaw tsawg dua rau lub teeb taub hau. Siv daim kab ntsuas kom paub meej tias qhov dav ntawm kab, kev faib cov hlaws thiab kev muab tso rau hauv, tsis yog tsuas yog seb cov khoom puas tawm hauv lub thawv xwb.
Vim li cas Thickness thiaj li hloov pauv qhov kev txiav txim siab zoo heev
NCDOT qhia txog 90 mils, kwv yees li 2.29 hli , rau cov kab nruab nrab, cov kab hla, kev hla kev, cov kab ntug thiab cov xub. Cov cim transverse rumble-strip tau teev tseg ntawm 240 mils, kwv yees li 6.10 hli . Dhau ntawm tib thaj chaw pleev xim, 240 mil profile muaj kwv yees li 2.67 npaug ntawm cov khoom siv ntawm 90 mil cim ua ntej qhov ceev thiab qhov chaw poob raug txiav txim siab.
| Piv txwv ntawm NCDOT cim | Qhov tuab uas tau teev tseg | Cov khoom siv ntau tshaj 100 m² | Qhov ntim sib piv |
|---|---|---|---|
| Txoj kab nruab nrab, txoj kev hla kev lossis xub | 90 mais / 2.29 hli | Kwv yees li ntawm 229 litres | 1.00 |
| Kev cim kab hla hla | 240 mais / 6.10 hli | Kwv yees li 610 litres | 2.67 |
Qhov no yog vim li cas "xim uas xav tau ib mais" tsis muaj lus teb thoob ntiaj teb. Qhov dav, qhov sib piv ntawm kab tawg, tuab, qhov ceev thiab thaj chaw cim yuav tsum paub txhua yam. Cov qauv ntawm qhov chaw, kev pib-nres ua haujlwm thiab cov khoom siv uas tshuav hauv cov lauj kaub lossis khau ces piav qhia ib feem ntawm qhov sib txawv ntawm qhov tshwm sim theoretical thiab cov ntaub ntawv kawg. Siv qhov ntsuas qhov poob los ntawm kev ua haujlwm sib piv es tsis txhob tsim qhov kev tso cai thoob ntiaj teb.
Tshawb xyuas cov khoom siv ntau npaum li cas piv rau lub peev xwm ntawm lub tshuab
Qhov kev xam yuav tsum xaus nrog ib daim phiaj xwm thauj khoom uas siv tau. Ib lub thermoplastic ACE tshuab cim txoj kev teev ib lub thoob nplawm 105 kg , ib lub thawv iav hlaws 25 kg thiab qhov ntau ntawm cov txheej txheem hloov kho tau ntawm 1.2–4 hli. Yog li ntawd, qhov piv txwv ntawm 1 km solid-line yuav xav tau plaub lub thawv thermoplastic thiab ob lub thawv hlaws ua ntej txhua qhov kev tso cai rau qhov project.
Qhov loj ntawm lub tshuab hloov txoj kev npaj. NCDOT xav kom cov tsheb cim kab ntev nqa tsawg kawg 1,500 lb, kwv yees li 680 kg , ntawm cov thermoplastic yaj hauv lub lauj kaub cia khoom. Qhov kev xav tau ntawd tsis siv rau tus neeg tuav tes, tab sis nws qhia tias vim li cas txoj kev loj thiab kev hla luv luv xav tau kev npaj yaj thiab rov ua dua sib txawv.
Daim Ntawv Teev Cov Khoom Siv Cim Kev Kwv Yees
Ua ntej yuav khoom, xyuas kom meej tias thaj chaw pleev xim, tus qauv kab, qhov dav, tuab, daim ntawv qhia txog cov khoom siv, hom hlaws iav, tus nqi siv, qhov loj ntawm pob thiab lub peev xwm ntawm lub tshuab. Khaws cov hlaws ua ntej thiab cov hlaws poob rau hauv ua cov khoom sib cais. Thaum kawg, piv rau kab uas tau teeb tsa nrog qhov project qhov yuav tsum tau ua kom pom tseeb vim tias qhov hnyav ntawm cov hlaws uas tau xam yog qhov nkag, tsis yog qhov tshwm sim lees txais.
Raws li ib qho kev ntsuas raug cai, NCDOT xav tau tsawg kawg yog 375 mcd/lux/m² rau dawb thiab 250 mcd/lux/m² rau cov cim thermoplastic daj siv cov hlaws iav txheem. Rau cov xov xwm uas muaj kev cuam tshuam zoo, cov nqi sib xws nce mus txog 800 thiab 600 mcd/lux/m². Yog li ntawd, lub tshuab faib khoom tuaj yeem xa qhov hnyav uas tau npaj tseg thiab tseem tsim cov kab tsis lees paub thaum kev faib cov hlaws lossis kev ntxig tsis raug.
Cov Lus Nug Feem Ntau
Yuav tsum tau siv xim thermoplastic ntau npaum li cas rau ib square metre?
Siv tus nqi uas tau teev rau cov khoom xaiv thiab txheej tuab. Raws li ib qho piv txwv luam tawm, SWARCOTHERM 30 siv 4.00 kg/m² ntawm 2.0 hli.
Yuav tsum muaj pes tsawg lub thermoplastic rau 1 km ntawm 100 mm txoj kab khoom?
Thaj chaw pleev xim yog 100 m². Ntawm 4.00 kg/m², qhov ntau thermoplastic theoretical yog 400 kg ua ntej qhov kev tso cai tshwj xeeb rau qhov project.
Yuav tsum muaj pes tsawg lub hlaws iav rau ib square meter?
Ua raws li cov lus qhia ntawm daim ntawv cog lus. FHWA tshaj tawm txog qhov ntau thiab tsawg ntawm cov thermoplastic drop-on uas kwv yees li 0.29–0.59 kg/m².
Puas yuav tsum suav nrog cov hlaws dai uas tau sib xyaw ua ntej rau hauv kev suav cov khoom poob?
Tsis yog. Cov hlaws dai uas tau sib xyaw ua ntej lawm muaj nyob rau hauv cov tshuaj cim, thaum cov hlaws dai uas poob rau ntawm txoj kev raug siv rau ntawm qhov chaw ntawm txoj kev. Sau npe thiab yuav lawv cais.
