Pahu Kotahi, Pahu Takirua rānei, Rōra Hīkoi-Muri rānei: Ko tēhea te mea me whiriwhiri e koe?
He māmā noa iho te whiriwhiri i waenga i te pūoro kotahi me te pūoro takirua kia tae mai rā anō ngā pepa whakaritenga. Kotahi te pūoro maitai o tētahi mīhini, e rua ngā pūoro o tētahi, ā, he mea whakamātau te whakaaro me mahi rua ngā pūoro e rua i te mahi. Kāore i te tino ātaahua ngā taputapu hanga. Ka whakawhirinaki anō hoki te mahi whakakīkī ki te taumaha whakahaere, te kaha whakatere, te auau wiri, te whānui o te pūoro, te tere haere, te āhua o te rauemi me te matotoru o te paparanga.
Ko te whakautu whaihua ko te mea he pai te whakamahi i te roera hikoi-muri kotahi mō ngā oma poto, te kawe pinepine, me te mahi e tika ana te tūnga tika. Ka taea e te roera hikoi-muri takirua te whakarato i te hipoki pumau ake i runga i te uku me ngā haerenga whaiti roa. Kāore tetahi o ngā whakatakotoranga e toa i ngā mahi katoa, nō reira ko ngā raraunga rauemi me te mīhini te whakatau, ehara i te maha o ngā roera i tāia i roto i te pukapuka.
Pahu Kotahi me te Roera Pahu Takirua: Te Whakataurite Tere
| Tauwehenga kōwhiringa | Roera hikoi-muri kotahi | Roera hikoi-muri takirua |
|---|---|---|
| Whakaritenga whakapā | Kotahi te pahu rino wiri, he wira tautoko te nuinga | He ara mahi kotahi kei te taha o ngā pahu rino o mua me muri |
| Ngā kaha noa | Te whakahaere kiato, te tūnga taha me te kawe māmā ake | Kapi ōrite te ara me te hurihuri maeneene i runga i te ara uku |
| Ngā tono noa | Kirikiri, turanga kirikiri, papa uku me te mahi kua herea | Te whakatikatika uku, ngā ara, ngā wāhi waka me te whakakī anō i ngā kirikiri |
| Ngā arowhai hoko kī | Te kaha, te whānui o te pahu, te pūnaha wai me te ātea taha | Taumaha whakahaere, kaha, taupoki pupuhi me te kaha kawe |
| He hapa noa | Ki te kī kotahi te pahu, he ngoikore te whakakīkī | Ki te mea e rua ngā pahu, ka nui ake te hōhonutanga, ka iti ake rānei ngā pānga |
He aha te Tatau Pahu Kāore e Kōrerotia te Pūrākau Katoa
Te Awhe rōra kotahi ACE RL600A-800 e whakamahi ana i te tuku waipēhi, te mana haere taurangi, te pūnaha haumaru tangata mate, ngā waru horoi-ā-unoa me te tāke wai ka taea te tango. Ko te kaha porotītaha kua whakaputaina puta noa i te awhe he 15–20 kN, me te auau wiri o te 70 Hz. E whakaatu ana aua tatauranga ka taea tonu e te mīhini pahu kotahi te whakaputa i te kaha hihiri whai hua, ā, ka taea te whirihora mō te mahi uku kaua ki te herea ki te oneone pakaru.
Te Awhe rōra pahu takirua ACE RL500D-RL900D Ka kapi i tētahi whānuitanga mahi whānui. Ka piki te taumaha whakahaere mai i te 630 ki te 810 kg, ka piki te kaha porotītaha mai i te 15 ki te 30 kN, ā, ko te whānui o te pahu kei waenganui i te 600 ki te 700 mm. Ka oma ngā tauira e whā i te 3,600 wiri ia meneti, ko te kaha o te tāke wai kei waenganui i te 32 ki te 35 rita.
| Tawhā pūoro takirua ACE | Awhe kua whakaputaina | He aha te tikanga i runga i te pae |
|---|---|---|
| Taumaha whakahaere | 630–810 kg | Ka pā ki ngā whakaritenga uta, kawe me te hiki |
| Te kaha pūngao | 15–30 kN | E whakaatu ana tera pea he rerekē tonu te putanga o ngā mīhini e rua me ngā pahu e rua |
| Auautanga wiri | 3,600 vpm / 60 Hz | Me whai whakaaro tahi me te tere haere |
| Whānui o te pahu | 600–700 mm | Ka whakarerekē i te kapinga mō ia haerenga me te urunga mā roto i ngā whakatuwheratanga whaiti |
| Te tere haere mōrahi | 2.5 kiromita/h | Ka pā ki te maha o ngā huringa wiri e tae atu ana ki ia mita |
| Te kaha o te wai | 32–35 rita | Āwhina ana i te mākū o te pahu i te wā e mahi ana i te uku |
E whakaatu ana te whānuitanga he aha te "pahu takirua" he tahora mīhini, ehara i te whakatauranga mahi. E rua ngā pahu o te RL500D me te RL900D, engari ko ō rāua kaha porotītaha kua whakaputaina he 15 me te 30 kN. Ka whakaputahia e te mīhini tuarua te kaha e rua te whakarārangi ahakoa kāore i rerekē te maha o ngā pahu.
Ka Hurihia e te Tere Haere te Kaha Whakakīkī mō ia Mita
He mea whakamiharo te auau wiri i runga i te pepa whakatakotoranga, engari ka nui ake te whai hua ina honoa ki te tere haere. Ka mahi ngā tauira pahu takirua ACE i te 3,600 wiri ia meneti, ara 60 huringa ia hekona. I te tere mōrahi kua whakaputaina o te 2.5 km/h, ko te hua matapae he tata ki te 86 huringa wiri ia mita. I te haurua o taua tere, tata ki te 1.25 km/h, ka piki te whika ki te tata ki te 173 huringa ia mita.
Ehara tēnei i te kī he pai ake te puhoi. Ehara te ngoki haere i runga i te uku wera tae noa ki te wā tina i te rautaki whakakīkī e mōhiotia ana. E whakaatu noa ana tēnei ko te whakanui ake i te tere ka whakaiti i te kaha wiri e pā ana ki ia mita. Me whakataurite tonu e ngā kaiwhakahaere te tere ki te pāmahana rauemi, te nekehanga o te mata, te kiato o te whāinga me te mōrearea o te mahi nui rawa i te paparanga.
Ko tēhea Rōra Hīkoi-Muri te Pai ake mō te Uku?
He maha ngā wā ka whiriwhiria he roera hikoi-muri-rua mō ngā whakatikatika uku iti, ngā ara whāriki me ngā wāhi waka nā te mea ka haere ngā pahu e rua i te ara kotahi. Ka taea e tēnei te whakapai ake i te ōritetanga o te taupoki, engari ko te hua maeneene kei runga tonu i te taupatupatu o te ara, te pāmahana uku, te ma o te pahu me te tohatoha wai. Ka whakauruhia e ACE ngā pae waru e rua ki ia pahu i runga i tana awhe RL500D-RL900D, hei āwhina i te tango i te rauemi i mua i te haereere huri noa i te pahu me te waiho i tētahi maumahara kāore e hiahiatia ki runga i te mata kua oti.
Kaua ngā roera pahu kotahi e whakakorea mō te uku. Kei roto i ngā tauira pahu kotahi ACE ngā waru horoi-ā-unoa, ngā taha pahu kua whakapikohia, me te tāke wai ka taea te tango. Ka aro atu ēnei āhuatanga ki ngā raruraru mahi kotahi: te piri o te rauemi ki te pahu, ngā tohu taha e kitea ana, me te horoi uaua i muri i te mahi.
Ka huri anō hoki te pāmahana i te matapihi hurihuri. Te Whakahaere Huarahi Matua o Amerika E ai ki ngā pūrongo, ko te tikanga ka tīmata te ranunga uku mahana i te 30–70°F, tata ki te 17–39°C, i raro iho i ngā pāmahana tuku iho o te ranunga uku wera, ā, ka noho mātao tonu i te wā e whakatakotoria ana, e whakakīkītia ana hoki. Nō reira, ko te tauira tika o te haere e whakawhirinaki ana ki te ranunga i tukuna mai, ehara i te mea i pai ki te wāhi waka o te Tūrei kua hipa.
Ko tēhea roera e pai ake ana te mahi ki te oneone me te kirikiri?
Mō te kirikiri, te onepu me te turanga-iti, whakatairitea te taumaha whakahaere, te kaha whakatere, te makuku me te matotoru o te paparanga wetewete. He māmā ake te whakanoho i tētahi mīhini pahu kotahi i ngā oma poto, engari ko tētahi tauira pahu takirua taumaha ake ka nui ake te kaha me te whānui o te uhi. Heoi, kāore e taea e tētahi mīhini te whakaora i tētahi paparanga kāore i tino rite. Mēnā he matotoru rawa te whakatakotoranga o te rauemi, he makuku kāore rānei i te tika, mā te tāpiri atu i ētahi atu haerenga ka whakakīkī noa i te tihi, engari ka wetewete tonu te wāhanga o raro.
Kāore ngā mīhini pū rua e herea noa ki te uku. Kei roto i ngā tono a Multiquip ko te whakakī i ngā paipa me te oneone kirikiri. Roera takirua MRH800GS E 694 kg te taumaha o taua tauira, e 23.57 kN te kaha whakakī, e mahi ana i te 3,300 vpm, ā, e whakamahi ana i ngā pahu 650 mm. Kei roto ēnei tatauranga i te rohe mahi whānui kotahi me ētahi tauira pahu takirua ACE, e hoatu ana ki ngā kaihoko he paearu ā-waho whai hua.
Te Uru ki te Tapa, te Kawe me te Mana Whakahaere
He maha ngā wā e whakaahuatia ana ngā roera pahu kotahi he māmā ake te whakamahi i te taha o ngā pakitara, engari he mea nui ake te āhua o te mīhini i te tapanga. E whakaputa ana a Multiquip i raro i te 25 mm te tawhiti taha mō te roera pahu takirua MRH800GS, e whakaatu ana ka taea hoki e te mīhini takirua te mahi tata ki te taha. Me tirotiro e ngā kaihoko te taha whakarunga, te whānui o te anga, te nekehanga o te kakau me te tirohanga mai i te tūranga whakahaere, kaua e whakawhirinaki ki tētahi kōrero whānui mō te ngāwari o te nekeneke.
Me aro nui anō hoki ki te kawe waka. BOMAG BW 65 Hei tauira, e 720 kg te taumaha, ā, e 650 mm te whānui mahi. He kiato tēnei e ai ki ngā paerewa o te rōra rori, engari ehara i te mea e tika ana kia whakatenatena noa ngā kaimahi e rua ki te whakaara i tētahi papa. Me whakaū te kawenga o te wakatō, te whakatauranga o te arawhata, ngā pūwāhi hiki me ngā tūranga here i mua i te hoko.
E hia ngā pānga, ā, e hia te hōhonu?
Kāore he tau whānui o ngā haerenga, he hohonutanga whakakīkī pumau rānei mō te roera wiri hikoi-muri. Ka rerekē te hua i runga i te whakarōpūtanga o te rauemi, te makuku, te matotoru o te paparanga, te pakari o te whenua tautoko, te kaha mīhini me te tere haere. Kāore e taea e te tatau o te pahu anake te whakautu i tētahi o ngā pātai e rua.
He tīmatanga pono ake mā te rīpene whakamātautau. E whakaahua ana te FHWA i ngā inenga kiato karihi hei taputapu tere, tata kore-whakangaro mō te ine i te oneone kei te wāhi, te rauemi kirikiri me te mātotoru uku. E kī ana hoki te tari ka taea e ēnei ine te āwhina i te whakatū i tētahi tauira hurihuri me te tauira whiti whai hua, ko ngā matua kua whakamatautauria i te taiwhanga tonu te tohutoro tika ake mō te mātotoru o te papa.
Pahu Kotahi, Pahu Takirua rānei: He Ture Hoko Whai Hua
Kōwhiria he roera hikoi-muri kotahi te pahu ina ko ngā mea matua he iti te whakahaere, he maha ngā kawe me te ngāwari te whakamahinga mō ngā mahi poto me ngā mahi kirikiri.
Kōwhiria he roera hikoi-muri takirua ina pai ake te mahi mō te hipokinga ōrite o te ara, te whakaotinga uku me te taumaha teitei ake o te mīhini.
I mua i te tono, whakatairitehia te rauemi tuturu, te matotoru o te paparanga wetewete, te kiato ūnga, te whānui mahi, te kaha whakatere, te auau wiri, te pūnaha wai, te tawhiti taha me te rohe kawe. Mā te maha o ngā pahu ka āwhina ki te hanga i te rārangi poto. Ko te pepa whakatakotoranga, me te whenua i raro i te mīhini, te whakatau whakamutunga.
Ngā Pātai Auau
He pai ake te whakawhāiti i te rōra pahu takirua?
Kāo. Ko te awhe o te pahu takirua ACE anake ka horapa ki te 15–30 kN o te kaha whakatere, e whakaatu ana he rerekē rawa te mahi i waenga i ngā mīhini me te tahora pahu kotahi.
Ka taea e te roera kotahi te hikoi i muri i te arai kiato?
Āe. Ka taea e te tauira pahu kotahi me te tāke wai, te waru me te taha pahu e tika ana te whakatika i te papa uku me ētahi atu wāhi iti kua papa.
He iti ake ngā pānga e hiahiatia ana mō te roera pahu takirua?
Kāore i te aunoa. Ko te maha o ngā putanga ka whakawhirinaki ki te rauemi, te makuku, te matotoru o te paparanga, te tere, te kaha mīhini me te mātotoru e hiahiatia ana. He nui ake te whai hua o te wāhi whakamātautau i te tau pumau kua tāruatia mai i tētahi atu wāhi.
He aha ngā mea e tika ana kia whakaritea e tētahi kamupene reti?
Me whakataurite e ngā kaihoko reti te kapinga o te tono, te taumaha o te kawe, ngā mana whakahaere haumaru, te urunga ratonga, ngā wāhanga pakaru noa me te tiaki i te pūnaha wai. He whai hua te mīhini e mahi ana i ngā wāhi maha, engari me taea anake e ngā kaihoko te neke me te whakahaere haumaru.
