Te Whakanuia Matauranga Hua
He aha te Mīhini Tohu Rori, ā, me pēhea te mahi?
He taputapu hanga motuhake te mīhini tohu rori e whakamahia ana hei tāpiri i ngā rārangi waka, ngā wāhi waka, ngā whitinga hikoi, ngā pere me ngā tohu haumaru ki te uku, ki te raima rānei. I runga i te whenua, ka taea hoki te kī ko taua taputapu he mīhini tohu rārangi , he mīhini tohu ara , he mīhini peita rārangi rori rānei.
I te tirohanga tuatahi, he māmā noa iho te mahi: tāpirihia he peita ki roto i te mīhini, whai i tētahi rārangi, ā, ngana kia kaua e tuhi i tētahi mea e rite ana ki tētahi nakahi ngenge. I roto i te mahi, ko te tohu pai e whakawhirinaki ana ki ētahi mana whakahaere e mahi tahi ana. Me whakahaere e te mīhini te rere o ngā rauemi, te whānui o te rārangi, te matotoru o te paninga, te tere haere, me ngā pītiti karāhe whakaata ina hiahiatia. He mea nui te kounga o te peita, engari kāore e taea te whakakapi i te papa mākū, te tere kore pumau, te pito rehu kua āraia rānei.
He pēhea te mahi a te mīhini tohu rori?
Ko te nuinga o ngā taputapu tohu rori e whai ana i te tukanga taketake kotahi. Ka whakarite te kapa i te ara, ka whakatakoto i te huarahi, ka whakarite te mīhini i ngā taputapu tohu, ā, ka tukuna atu ngā rauemi tohu, ā, ka whakatakotoria e te upoko tono taua rauemi ki te whānui kua whakaritea. Kātahi ka taea te maturuturu i ngā pirepire karāhe ki runga i te tohu hou hei whakapai ake i te tirohanga i te pō.
1. Kua horoia te ara, ā, kua whakatakotoria te huarahi
Ka taea e te puehu, te makuku, te hinu, ngā matū whakamaroke me ngā tohu tawhito e memeha ana te piri. Koia te take me tirotiro te whakaritenga o te mata i mua i te tīmatanga o te kaiwhakahaere ki te whakarerekē i te pēhanga, i te pāmahana rānei. Kāore e taea e te mīhini te whakaoti i te raruraru o te papa mā te haruru haere.
Ka pā hoki te pāmahana ki te hononga kirihou wera. Hei tohutoro mahi a te US, Aratohu TxDOT e hiahiatia ana he mata ma, maroke, ko te papa whariki kaua e iti iho i te 50°F, 10°C rānei, me te pāmahana hau kaua e iti iho i te 55°F, 13°C rānei. Kaua ēnei uara e whakaarohia hei tautuhinga whānui; ko te pepa hangarau a te kaiwhakarato rauemi me ngā whakatakotoranga kaupapa ā-rohe te mea nui i ngā wā katoa.
2. Ka Tukuna ngā Rauemi ki te Rori
Ko te tikanga, ka whakamahia e te mīhini tohu rori peita matao he papu kore hau. Ka whakanuia e te papu te pēhanga peita, ka panaia te rauemi mā roto i tētahi pito rehu iti. I te wehenga atu o te peita i te pito, ka hangaia te tauira rehu e te hekenga pēhanga ohorere, me te kore e whakamahi i te hau pēhi.
Ko te pēhanga tētahi wāhanga noa iho o te pūnaha. Ko te rere o te papu, te rahi o te pito rehu, te matotoru o te peita me te maha o ngā pū hohe e whakatau ana i te nui o te mahi ka taea e te mīhini te whakaoti. Hei tauira, ko te Graco LineLazer V 3900 he pēhanga mahi mōrahi te whakatauranga o te 3,300 psi, 227 pae rānei, me te rere mōrahi o te 4.7 rita ia meneti, ā, e tautokona ana hoki ngā pū rehu e rua. He tatauranga motuhake ēnei mō te tauira, engari e whakaatu ana he aha te whakataurite i te pēhanga anake he rite ki te whakataurite i ngā taraka mā te pēhanga o ngā potae.
He rerekē te mahi a te mīhini tohu rori kirihou wera . Ka rewa te kirihou totoka i roto i tētahi whakamahana motuhake, i tētahi pūnaha whakamahana whakauru rānei. Kātahi ka tukuna te rauemi rewa ki roto i tētahi pouaka kirikiri, i tētahi hū whakaputa, i tētahi pane rehu rānei. Me noho pūmau te pāmahana kia mau tonu ai te rere me te kore e pakaru te hononga.
He Ngā whakatakotoranga kirihou āriki Caltrans ka puta he whānuitanga tono o te 400–450°F, tata ki te 204–232°C. Heoi, he rerekē ngā tautuhinga e hiahiatia ana mō ngā hanganga kirihou wera rerekē, nō reira kaua rawa ngā kaiwhakahaere e whakaaro he pai te pāmahana kotahi mō ia putea rauemi.
3. He taurite te whānui, te matotoru me te tere o te rārangi
Ko te whānui o te rārangi ka whakahaeretia e te pito rehu, te tūranga o te pū, te whakatuwheratanga rānei o te pouaka paninga. Ko te matotoru o te paninga ka whakawhirinaki ki te nui o te rauemi e whakatakotoria ana i runga i tētahi tawhiti kua whakaritea. Mena ka noho tonu te putanga rauemi i te mea ka tere ake te haere o te mīhini, ka angiangi te tohu. Mena ka puhoi te mīhini, ka nui ake te rauemi e whakatakotoria ana mō ia mita.
Mō te hoahoa rori o Amerika, ko te Putanga 11 o te MUTCD e tautuhi ana i te whānui o te rārangi roa noa he 4–6 inihi, tata ki te 102–152 mm. Me rua te whānui o te rārangi whānui i te rārangi noa. E whakamahi ana te tuhinga kotahi i te tauira rārangi whatiwhati noa o te wāhanga kua tohua he 10 putu te roa, ā, e whai ake ana ko te āputa 30 putu te roa.
Mā ēnei inenga ka whakamāramahia he aha i hiahiatia ai he urungi pumau me te mana pū tika mō te mīhini. Ahakoa he tika te whānui toharite o te rārangi, kāore tonu e taea te tirotiro mēnā ka tīmata tōmuri ia wāhanga, ka mutu wawe, ka kopikopiko rānei i te ara.
4. Ka whakapai ake ngā pīni karāhe i te tirohanga i te pō
Ka whakahokia e ngā pītiti karāhe whakaata te mārama o te rama o te waka ki te taraiwa. Ka whakawhirinaki te pānga ki te kounga o ngā pītiti, te tere o te tono me te hohonu o te whakauru. E ai ki Rangahau FHWA , ko te tikanga ka whakaata whakamuri ngā pirepire karāhe ina whakauruhia te 50–60% o tōna whānui ki te rauemi tohu.
Ki te teitei rawa ngā pirepire, ka tere te tango atu e te waka. Ki te hohonu rawa te totohu, kāore e ranea te mata o ngā pirepire hei whakaata i te mārama. Nō reira, kāore e pai ake te nui ake o ngā pirepire; ki te kore, ka taea e ngā kaimahi rori te whakakore i te putea katoa ka hoki wawe ki te kāinga.
He aha ngā momo matua o ngā mīhini tohu rori?
| Momo mīhini | Tikanga tono | Ngā whakamahinga noa | Ngā arowhai hoko matua |
|---|---|---|---|
| Mīhini peita matao kore hau | Pū rehu pēhanga teitei | Ngā wāhi waka, ngā wāhi wheketere, ngā rori ā-rohe me te tiaki | Te rere o te papu, te rahi o te matamata, te rahi o te pū me te hototahi ki te peita |
| Mīhini paninga kirihou wera | Ka haere te rauemi rewa mā roto i te pouaka kirikiri | Ngā rārangi rori, ngā rārangi aukati me ngā whitinga hīkoi | Te kaha whakamahana, te whānui o te raina, te matotoru me te pūnaha pīrere |
| Mīhini kirihou rehu | Ka pupuhihia te rauemi wera mā roto i te pane rehu | Ngā rārangi rori roa e hiahia ana kia tere ake te tono | Te hoahoa papu, te whakahaere pāmahana me te tukanga horoi |
| Mīhini wāhanga-rua | Ka inehia te kapia me te whakapakeke, ka whakaranua | Ngā pūnaha tohu mahi teitei ake, kua rongoatia ki ngā matū | Te ōwehenga ranunga, te roa o te kohua, te horoi me te tika o te taurite |
He maha ngā whirihoranga e tukuna ana e ACE i roto i ana whānuitanga mīhini tohu rori , tae atu ki ngā taputapu peita makariri, kirihou wera-pania-ā-ringa me ngā taputapu kirihou wera-whakatere-ake. Me whiriwhiri te tauira tika mai i ngā rauemi tohu me ngā āhuatanga o te kaupapa, kaua ko te mīhini anake e tino ātaahua ana i roto i te rārangi mahi.
Mīhini Tohu Rori Pana-ā-Ringa, Mīhini Tohu Rori Whaiaro-ā-Whaiaro rānei?
He māmā ake te whakanoho i tētahi mīhini pana-ā-ringa ki ngā wāhi waka, ki ngā pere, ki ngā rārangi poto me ngā wāhi kuiti. He māmā ake hoki te kawe i waenga i ngā wāhi iti ake. mīhini tohu rori kirihou-whakarewa e neke ana i a ia anō he pai ake mō ngā aho roa tonu nā te mea ka taea te pupuri i te haere pumau me te whakaiti i te ngenge o te kaiwhakahaere.
Me whai whakaaro te whakatau ki te roa o te tohu o ia rā, te auau hurihuri, te pikinga, te tauira rārangi me ngā whakaritenga kawe. Ko te mana o te mīhini anake e whakaatu ana i tētahi wāhanga noa iho o te kōrero. Ko te mīhini kaha e tatari ana mō ngā rauemi i te haurua o te wā, kei te pai tonu te okiokinga utu nui.
Me pēhea te whiriwhiri a ngā kaihoko i ngā taputapu tohu rori?
Tīmata ki te rauemi tohu nā te mea ka whakatauhia te papu, te tāke, te pūnaha whakamahana me te pane tono. Muri iho, whakaūhia te whānui o te raina, te matotoru o te whāinga, te tauira raina totoka, te tauira raina pakaru rānei me te putanga o ia rā e tumanakohia ana. Kia mārama noa ēnei tohu ka whakataurite te kaihoko i ngā miihini, ngā tāke me ngā pūnaha haere.
| Tauwehenga kōwhiringa | He pātai hei pātai |
|---|---|
| Te tuku rauemi | Ka taea e te papu, e te whakamahana rānei te tuku rauemi i te tere e pau ana i te mīhini? |
| Te tere haere | Ka taea e te mīhini te pupuri i te matotoru kua tohua i te tere mahi kua whakaritea? |
| Tauira rārangi | Me whai mana aunoa te mīhini ki te raina whatiwhati, me ētahi pū rehu rānei? |
| Ngā poroporo karāhe | Ka taea te whakarite i te tohatoha ina huri te tere me te whānui o te raina? |
| Te tiaki | Kei te wātea mai ngā pito, ngā tātari, ngā hiri, ngā ngongo me ngā wāhanga mura i te rohe? |
He mīhini tohu peita matao kore hau he mea whai hua pea mō ngā papa waka, ngā wheketere me ngā kaupapa tiaki ā-rohe, inā koa ka huri ngā tae o ngā kaimahi, ka neke rānei i waenga i ngā mahi poto. mīhini tohu kirihou pana-ā-ringa tērā pea e pai ana mō ngā rārangi rori matotoru ake, ngā whakawhiti me ngā kaupapa e tukuna ana ngā rauemi rewa mai i tētahi whakamahana motuhake.
Ngā Raru Noa o te Mīhini Tohu Rori
He maha ngā rārangi piupiu e tohu ana i te hē o te tūnga o te arataki, te takaro o te urungi, te tere kore pumau rānei. Tērā pea ka puta ngā wāhanga angiangi i te tere nui rawa o te haere, te rere o te peita kua herea, te papu kua tawhito, te pito rehu kāore i te tika. Ka puta pea ngā taha taratara i te teitei hē o te pū, te matotoru iti o te peita, te pouaka kirikiri pakaru rānei.
Ina kore e piri tika te kirihou wera, me tirotiro tuatahi e te kaiwhakahaere te ma o te mata, te makuku me te pāmahana. Mā te whakanui ake i te wera me te kore e tirotiro i te papa ka kino pea te rauemi, engari ka waiho te raruraru taketake kia kore e pāngia.
He raupapa rapurongoā whai hua:
Tirohia te āhua o te arai.
Tirohia te pāmahana, te matotoru rānei o te rauemi.
Horoia ngā tātari, ngā pito o te rehu me ngā ara tuku.
Manatokohia te pēhanga o te papu, te mahi whakamahana rānei.
Tirohia te urungi, te whakaritenga o te arataki me te nekehanga o te wira.
He uaua ake te kimi hapa i te wā kotahi mā te whakarerekē i ngā tautuhinga maha. He rite tonu ngā mīhini ki ngā kaihangarau i tēnei āhuatanga: he pai ake te whanonga o ngā mīhini e rua ina kotahi anake te taurangi e whakarerekētia ana i te wā kotahi.
Ngā Pātai Auau mō te Mīhini Tohu Rori
Ka taea e te mīhini tohu rori kotahi te whakamahi i ngā peita rerekē?
Mēnā ka hototahi te papu, ngā ngongo, ngā hiri, te tāke me te pane tono ki ia rauemi. Kāore e taea te whakawhiti aunoa i ngā pūnaha peita makariri, kirihou wera me ngā pūnaha wāhanga-rua.
Ka taea e te mīhini tohu rārangi te whakamahi i ngā pere me ngā whiti zebra?
Āe. I runga i te whānui me te āhua e hiahiatia ana, ka taea e te mīhini te whakamahi i tētahi pouaka whānui, ētahi pū rehu, he tauira peita, he pū ringaringa motuhake rānei.
Me whai whakamahana mua ngā mīhini kirihou wera katoa?
Kāo. He maha ngā mīhini iti e whiwhi ana i te kirihou whakarewa mai i tētahi whakamahana motuhake, engari ko ngā tauira whakauru e whakakotahi ana i te whakarewa me te tono. Ko te whakaritenga tika e whakawhirinaki ana ki te whakamahinga rauemi ia haora me ngā whakaritenga o te papa.
He aha te mea e whakatau ana i te hua o ngā mīhini tohu rori?
Ko te hua tūturu ko te roa o te māka kua whakaaetia kua oti mō ia hāora mahi i muri i te tukunga mō te tahora, te whakamahana, te whakakī anō, te horoi me te whakatikatika. He whai hua te tere haere mōrahi, engari ehara i te mea koinei te otinga katoa.
He Tirotiro Whakamutunga Whaihua
I mua i te tono utu, hoatu ki te kaiwhakarato te rauemi tohu, te whānui o te rārangi e hiahiatia ana, te matotoru o te paninga, te tawhiti tohu o ia rā me te ōwehenga o ngā rārangi totoka, whati me te whānui. Me tono kia whakaratohia he whirihoranga katoa e kapi ana i te papu, te pūnaha whakamahana rānei, te pane tono, te tohatoha karāhe, ngā taonga pau me ngā wāhanga tāpiri kua tūtohutia.
Me pupuri tonu e te mīhini tohu rori e tika ana te āhua o te rārangi me te putanga rauemi e hiahiatia ana i raro i ngā āhuatanga tūturu o te papaanga. He pai te whakamahi i tētahi pepa whakatakotoranga roa, engari ko te utu tūturu a te kiritaki ko tētahi rārangi tika, e kitea ana, e honoa pai ana.
