In order to
optimize the design of lightreducing shed of highway tunnels,
the height of lighttransmitting area on both sides of
lightreducing shed is studied. Firstly, numerical
analysis is used to study the direct irradiance area and brightness variations
of the road surface under different configurations of lightingreducing shed. By establishing numerical analysis models for
lightingreducing shed with topdiffusing plate and hollowdesign on both
sides, various optical parameters of lightingreducing
shed and the brightness distribution of road surface are analyzed under
different conditions. According to the requirements of direct irradiance area,
illuminance of road surface under the shed, and brightness uniformity, a
comparative analysis of two conditions is conducted. The lighttransmitting area height of lightreducing
shed are determined to be three meters for the north side and two meters for
the south side, which can mitigate the sudden brightness change when entering
and exiting the tunnel, and reduce the glare effect at the tunnel entrance.
Driving safety and comfort are enhanced with the improvement of driving
environment at the tunnel entrance.
WAN Li, RAO Yan, MA Fei, CHEN Guangyong, LIU Chuanli, ZENG Rong
. Research on Height of LightTransmitting
Area of External LightReducing
Shed of Highway Tunnels[J]. Tunnel Construction, 2023
, 43(S2)
: 387
-394
.
DOI: 10.3973/j.issn.2096-4498.2023.S2.043
