Kuverengera kweVentilation Mhepo Vhoriyamu uye Kusarudzwa Kwemidziyo muTunnel Kuvaka (2)

2. Kuverenga kwehuwandu hwemhepo inodiwa pakuvaka tunnel

Zvinhu zvinotarisa huwandu hwemhepo hunodiwa mukugadzirisa kwekugadzirisa zvinosanganisira: nhamba yakawanda yevanhu vanoshanda mumugero panguva imwe chete;huwandu huzhinji hwezvinoputika hunoshandiswa mune imwe kuputika: mhepo shoma shoma inotsanangurwa mumugero: kubuda kwemagasi ane chepfu uye anokuvadza akadai segasi uye carbon monoxide, uye nhamba yeinjini dzinopisa mukati dzinoshandiswa mumugero Mirira.

2.1 Verenga huwandu hwemhepo zvinoenderana nemhepo yakachena inodiwa nehuwandu hwehuwandu hwevanhu vanoshanda mugero panguva imwe chete.
Q=4N (1)
kupi:
Q - iyo inodiwa mhepo yemhepo mumugero;m³/min;
4 - Hushoma hwemhepo hunofanirwa kupihwa pamunhu paminiti;m³/min•munhu
N - Nhamba yepamusoro yevanhu vari mumugwagwa panguva imwe chete (kusanganisira kutungamira kuvaka);vanhu.

2.2 Yakaverengerwa zvichienderana nehuwandu hwezvinoputika
Q=25A (2)
kupi:
25 - Huwandu hwemhepo hushoma hunodiwa paminiti kudzikisa gasi rinokuvadza rinogadzirwa nekuputika kwekirogiramu yega yega yezvinoputika kusvika pasi peiyo inobvumidzwa kusungwa mukati menguva yakatarwa;m³/min•kg.

A - Huwandu hwepamusoro hwekuputika hunodiwa pakuputika kumwe, kg.

2.3 Yakaverengerwa zvichienderana nemhepo shoma yekumhanya yakatsanangurwa mugero

Q≥V_min•S (3)

kupi:
V_min- mhepo shoma shoma inotsanangurwa mumugero;m/min.
S - iyo shoma-yepakati-chikamu nzvimbo yemugero wekuvaka;m².

2.4 Yakaverengerwa zvinoenderana nekubuda kwechepfu uye inokuvadza magasi (gasi, kabhoni dhaidhiyoni, nezvimwewo)

Q=100•q·k (4)

kupi:

100 - Iyo coefficient yakawanikwa maererano nemirairo (gasi, carbon dioxide inobuda kunze kwemugero kumeso, carbon dioxide concentration isingapfuuri 1%).

q - mhedziso yekubuda kwemagasi ane chepfu uye anokuvadza mumugero, m³/min.Zvinoenderana neavhareji kukosha kweiyo yakayerwa manhamba.

k - kusaenzana kwegasi rine chepfu uye rinokuvadza rinobuda mumugero.Ireshiyo yehuwandu hwehuwandu hwekuyerera kusvika paavhareji yekuyerera, iyo inowanikwa kubva kuhuwandu hwekuyera chaiko.Kazhinji pakati pe1.5 ne2.0.

Mushure mekuverenga maererano nenzira ina dziri pamusoro, sarudza iyo ine yakakura Q kukosha sehuwandu hwehuwandu hwemhepo hunodiwa pakuvaka mhepo yemhepo mumugero, uye sarudza midziyo yekufemesa maererano nekukosha uku.Pamusoro pezvo, huwandu hwemichina yekupisa yemukati nemidziyo inoshandiswa mugero inofanirwa kutariswa, uye vhoriyamu yemhepo inofanirwa kuwedzerwa zvakakodzera.