Ngā āhuatanga o ngā hanganga toka mārō pērā i te karāneti me te mōrearea o te hanganga kōhao. I te wā e hoahoa ana i ngā turanga pou mō ngā piriti nui maha, me uru ngā pou ki roto i te toka mārō kua pakaru ki tētahi hohonutanga, ā, ko te whānui o ngā pou i hangaia mō ēnei turanga pou he nui ake i te 1.5mm. Tae atu ki te 2m. Ko te keri ki roto i ēnei hanganga toka mārō nui te whānui ka whakatakoto i ngā whakaritenga teitei mō te mana me te pēhanga o ngā taputapu, ā, ko te tikanga me neke atu i te 280kN.m te taipana e hiahiatia ana mō ngā taputapu. I te wā e keri ana i tēnei momo hanganga, he tino nui te ngaronga o ngā niho keri, ā, he nui ake ngā whakaritenga mō te ātete wiri o ngā taputapu.
Ko te tikanga hanga keri hurihuri e whakamahia ana i roto i ngā hanganga toka mārō pērā i te karāneti me te kirikiri. Me mahi ngā mahi mai i ēnei wāhi hei whakapai ake i te whai huatanga o te hanga poka me te whakaiti i ngā mōrearea.
(1) Me whiriwhiri ngā taputapu he 280kN.m te kaha, neke atu rānei, mō te hanga keri. Whakaritea ngā niho keri he pakeke ake, he pai ake hoki te mahi huri i mua. Me tāpiri he wai ki ngā hanganga kore wai hei whakaiti i te pakaru o ngā niho keri.
(2) Whirihorahia tika ngā taputapu keri. Ina keri ana i ngā kōhao mō ngā pou nui te whānui i roto i tēnei momo hanganga, me whiriwhiri te tikanga keri whakarōpū. I te wāhanga tuatahi, me whiriwhiri he keri oko roa me te whānui o te 600mm~800mm hei tango tika i te matua me te hanga i tētahi mata kore utu; me whiriwhiri rānei he keri porowhita iti te whānui hei keri hei hanga i tētahi mata kore utu.
(3) Ina puta he kōhao piko i roto i ngā papa toka mārō, he tino uaua ki te horoi i ngā kōhao. Nō reira, ina tūtaki ki tētahi mata toka piko, me whakatika i mua i te haere tonu o te keri.
Wā tuku: Hanuere-05-2024