To evaluate the effectiveness of new photo-catalytic materials for air pollutant reduction in the under-crossing tunnels.
目的评估新型道路及墙体光催化材料对下立交地道空气质量的改善效果。
2
There always is water standing in depression of urban overpass or under-crossing tunnel, therefore it is very necessary to set up a monitoring system for road waterlogging.
在城市立交桥或下穿隧道的低洼处常会有大量积水，因此需要建设道路积水监测系统。
3
This paper introduces several key technological issues in the construction of highway tunnels under-crossing the gas stratum, which provides the reference for similar engineering.