Ka helu ʻana i ka nui o ka ea ea a me ke koho ʻana i nā mea hana ma ke kūkulu ʻana i ka tunneling (2)

2. Ka helu ʻana i ka nui o ka ea e pono ai no ke kūkulu ʻana i ka tunnel

ʻO nā kumu e hoʻoholo ai i ka nui o ka ea e pono ai i ke kaʻina hana tunnel: ʻo ka nui o nā poʻe e hana ana i ka tunnel i ka manawa like;ʻO ka nui o nā mea pahū i hoʻohana ʻia i hoʻokahi puhi ʻana: ʻo ka māmā liʻiliʻi o ka makani i ʻōlelo ʻia i loko o ka tunnel: ka puka ʻana o nā kinoea ʻawaʻawa a me nā kinoea ʻino e like me ke kinoea a me ka carbon monoxide, a me ka helu o nā ʻenekini hoʻopau i loko i hoʻohana ʻia i ka tunnel.

2.1 E helu i ka nui o ka ea e like me ka ea hou e koi ʻia e ka nui o nā poʻe e hana ana i ka tunnel i ka manawa like
Q=4N (1)
ma hea:
Q - ka nui o ka ea i makemake ʻia i loko o ka tunnel;m³/min;
4 — ʻO ka liʻiliʻi liʻiliʻi o ka ea e hoʻolako ʻia i kēlā me kēia kanaka i kēlā me kēia minuke;m³/min•kanaka
N — Ka heluna nui o nā kānaka i loko o ka tunnel i ka manawa like (me ke alakaʻi ʻana i ke kūkulu ʻana);kanaka.

2.2 Ua helu ʻia e like me ka nui o nā mea pahū
Q=25A (2)
ma hea:
25 — ʻO ka liʻiliʻi liʻiliʻi o ka ea i koi ʻia i kēlā me kēia minuke e hoʻoheheʻe i ke kinoea pōʻino i hana ʻia e ka pahū ʻana o kēlā me kēia kilokika o nā mea pahū i lalo o ka ʻae ʻia i loko o ka manawa i kuhikuhi ʻia;m³/min•kg.

A — Ka nui loa o ka pahū i koi ʻia no hoʻokahi pahū, kg.

2.3 E helu ʻia e like me ka liʻiliʻi o ka makani makani i ʻōlelo ʻia ma ka tunnel

Q≥V_min•S (3)

ma hea:
V_min— ka liʻiliʻi o ka makani makani i kuhikuhi ʻia i loko o ka tunnel;m/min.
S - ka liʻiliʻi liʻiliʻi o ka ʻāpana keʻa o ka tunnel hana;m².

2.4 E helu ʻia e like me ka hoʻopuka ʻana o nā kinoea ʻawaʻawa a ʻino (gas, carbon dioxide, etc.)

Q=100•q·k (4)

ma hea:

100 — ʻO ka coefficient i loaʻa e like me nā hoʻoponopono (gas, carbon dioxide e kahe ana i waho o ke alo tunnel, ʻaʻole i ʻoi aku ke kiʻekiʻe o ka carbon dioxide ma mua o 1%).

q - ke kahe ʻana o nā kinoea ʻawaʻawa a ʻino i loko o ka tunnel, m³/min.E like me ka awelika waiwai o nā helu helu helu.

k - ka helu kaulike ʻole o ke kinoea ʻawaʻawa a ʻino e kahe ana mai loko mai o ka tunnel.ʻO ia ka lakio o ka leo huhū kiʻekiʻe i ka leo huhū maʻamau, i loaʻa mai nā ʻikepili ana maoli.ʻO ka maʻamau ma waena o 1.5 a me 2.0.

Ma hope o ka helu ʻana e like me nā ʻano ʻehā ma luna, e koho i ka mea me ka waiwai Q nui loa e like me ke kumukūʻai leo ea e pono ai no ke kūkulu ʻana i ka ea i loko o ka tunnel, a koho i nā mea hoʻonaninani e like me kēia waiwai.Eia kekahi, pono e noʻonoʻo ʻia ka nui o nā mīkini hoʻopau i loko a me nā mea hana i hoʻohana ʻia i ka tunnel, a pono e hoʻonui ʻia ka nui o ka ea.