He mea hiki ʻole ke noʻonoʻo inā hiki i ka ʻauwai wai i waiho ʻia ma waho me ka palekana i ka haʻawe hele wāwae a i ʻole ke kaʻa i kau ʻia ma luna.
![Bearing requirements for drainage ditch](http://www.echojuncture.com/uploads/Bearing-requirements-for-drainage-ditch.jpg)
E like me ka ukana, hiki iā mākou ke hoʻokaʻawale iā ia i ʻelua ʻāpana: ka ukana static a me ka ukana dynamic.
● hoʻokau paʻa
Ke hana pololei nei ka puʻu kaumaha ma luna o ka ʻauwai wai me ka ʻole o ka neʻe ʻana.Hoʻohana maʻamau ia e hoʻāʻo i ka hiki ke amo o ka pā uhi a me ke kino auwai.Ma ka hoʻohana pono ʻana, waiho wale ʻia nā kānaka a i ʻole nā huahana ʻē aʻe ma ka ʻauwai.
![static load](http://www.echojuncture.com/uploads/static-load.jpg)
● hoʻouka ikaika
Hoʻopuka ka kaʻa neʻe i ka ukana ikaika, hiki ke hana i ka torque e hoʻoneʻe i ka ʻauwai.ʻO ka ukana i lawe ʻia e ke kino auwai a me ka pā uhi, ke ʻano hana a me ka ʻōnaehana laka nā mea e pono e makaʻala i ka wā e noʻonoʻo ai i ka ukana ikaika.
![dynamic load](http://www.echojuncture.com/uploads/dynamic-load.jpg)
Lawe i ka maʻamau EN1433
ʻO ka mahele o ka papa haʻahaʻa haʻahaʻa he mea kōkua ia e koho i nā huahana kūpono e like me ke kūlana maoli o ka papahana, i hiki ai i ka ʻōnaehana wai laina laina ke hoʻokō i kahi ola lawelawe lōʻihi me ka ʻole o ka hoʻopau ʻana i ke kumukūʻai kālā.I kēia manawa, hoʻokaʻawale ʻia nā huahana kūloko a me nā ʻāina ʻē aʻe i ʻeono mau papa lawe ukana: A15, B125, C250, D400, E600 a me f900 e like me ka European Union EN1433 maʻamau a me nā wahi kaʻa waho.
Wahi hele wāwae, paikikala a me nā wahi kaʻa māmā ʻē aʻe, e like me ke alanui hele wāwae a me ka māla.
![A15(15KN)](http://www.echojuncture.com/uploads/6497078a.jpg)
A15(15KN)
Ala mālie, wahi kaʻa kaʻa liʻiliʻi, etc. E like me ke ala kaiāulu a me kahi kaʻa
![B125(125KN)](http://www.echojuncture.com/uploads/67e9f009.jpg)
B125(125KN)
ʻO ke alanui kaʻa, ka ʻāpana poʻohiwi, ke alanui kōkua kaʻa, kahi kaʻa nui a me ke kahua pāʻani
![C250(250KN)](http://www.echojuncture.com/uploads/C250250KN.jpg)
C250(250KN)
ʻO ke ala kaʻa alanui, ke ala holo wikiwiki, etc
![D400(400KN)](http://www.echojuncture.com/uploads/D400400KN.jpg)
D400(400KN)
ʻO nā wahi hoʻokele o nā forklifts, nā kaʻa ahi a me nā kaʻa kaumaha, e like me nā wahi ʻoihana a me nā pā wehe.
![E600(600KN)](http://www.echojuncture.com/uploads/18889ae9.jpg)
E600(600KN)
Nā wahi e holo ai nā kaʻa kaumaha, e like me nā mokulele, nā awa ukana a me nā kahua kaua.
![F900(900KN)](http://www.echojuncture.com/uploads/917332bc.jpg)
F900(900KN)
Ka manawa hoʻouna: Dec-01-2021