The lighting in superlarge
crosssection urban tunnel is high in energy
consumption and low in lighting effect. Accordingly, a case study is conducted
on the Haitianbao urban tunnel with an inner contour area of 145.91 m2 in Chongqing, China. Based on the lighting numerical simulation
analysis method, the parameters of lighting installation spaceheight ratio are introduced to investigate the influence of lighting
design parameters, such as lighting distribution mode, lighting distribution
curve, and installation longitudinal spacing, on tunnel lighting quality. The
results show that: (1) Under the same spaceheight
ratio, the indices of illumination quality, such as the average illumination of
road surface, the total uniformity of illumination of road surface, and the
longitudinal uniformity of illumination of the middle line of road surface,
increase first and then decrease with the increasing spacing of lamps. (2) When
the spaceheight ratio is 1.5, the illumination quality
index value reaches the highest when using central lighting mode, the
longitudinal spacing of 10.5 m, and symmetrical and nonbutterflyshaped light distribution curve.
Compared with the original scheme, the average road illuminance, the total
uniformity of road illuminance, and the longitudinal uniformity of road midline
illuminance are increased by 35%, 38%, and 24%, respectively. (3) It is
beneficial to improve the lighting quality of urban tunnel pavement with large
crosssection by selecting an appropriate lighting
pattern and light distribution curve.
JIA Jiayin
,
PANG Bo
,
ZHOU Shijun
,
HE Shiyong
,
JIANG Haokai
,
LIANG Bo
. Optimization of Lighting Design Parameters of SuperLarge
CrossSection Haitianbao Urban
Tunnel in Chongqing, China[J]. Tunnel Construction, 2022
, 42(S2)
: 51
-58
.
DOI: 10.3973/j.issn.2096-4498.2022.S2.008
