Study on Time Factors in the Smoke Control Process of Highway Tunnel Fires

Table 2

Comprehensive resistance coefficients of various conditions.

Number	L = 20 m	L = 30 m
No grid	1.872	2.058
Grid 1	2.174	2.512
Grid 2	2.337	2.756
Grid 3	2.523	3.035
Grid 4	2.802	3.453
Grid 5	3.105	3.907