He aha ke ʻano o ka hoʻoheheʻe wai no nā kahawai wai i hana mua ʻia?

He mea maʻamau nā kahawai wai i hana mua ʻia i ke ola o kēlā me kēia lā a he hana koʻikoʻi. Akā naʻe, ʻaʻole ʻike ka poʻe he nui i ke ʻano o ka hoʻoheheʻe wai no nā kahawai wai i hana mua ʻia. I kēia lā, e kaʻana like nā mea hana auwai wai i nā ʻano hana hoʻoheheʻe no kāu kuhikuhi.

1. Wehe i nā ʻauwai: E ʻeli i nā pae like ʻole o nā auwai e hoʻokumu i kahi pūnaewele o nā ʻauwai. Kahe ka wai mai nā ʻauwai kīhāpai (nā ʻauwai wai lepo, nā ʻauwaha, nā ʻauwai mahiʻai raiki) i nā ʻauwai hoʻoili (nā ʻauwai nui, nā ʻauwai lālā, nā ʻauwai kumu), a hope loa i nā wahi hoʻokuʻu (nā muliwai, nā loko, nā kai).
2. E wehe i nā ʻauwai me ka ʻole o nā pā uhi: Hoʻokomo pinepine ʻia nā ʻauwai hāmama me nā pā uhi ʻole ma ka ʻaoʻao o nā paia o waho o nā hale lalo. He 100mm ka laulā o ka ʻauwai wai. I ka hana ʻana o ka papahele o lalo, pono e hana mua ʻia ka hoʻonohonoho ʻana a me ka hoʻonohonoho ʻana, a ma hope o ka hana formwork.

Ma hope o ka ninini ʻia ʻana o ke kaʻa ma ka lepo, pono e hoʻopili ʻia kahi 20mm manoanoa M20 i hui mua ʻia (hui pū ʻia me ka pauka wai wai 5%) ma lalo a me nā ʻaoʻao o ka ʻauwai. I ka manawa like, pono e hana ʻia kahi slope ma lalo o ka ʻauwai me ka gradient o 0.5%.

I ka hoʻohana ʻana i nā kahawai wai prefabricated, he mea nui e pili i nā ʻōlelo aʻoaʻo kūpono a me nā pono mālama e hōʻoia i ka hoʻomau mau ʻana o ka ʻōnaehana wai. Ma mua o ke kūʻai ʻana a me ka hoʻokomo ʻana, e kamaʻilio me nā ʻenekinia wai a i ʻole nā ​​​​mea hoʻolako e hoʻomaopopo i nā ʻano hoʻohana kikoʻī a me nā ʻano mālama mālama no nā kahawai wai.