E3S Web Conf.
Volume 145, 20202019 International Academic Exchange Conference on Science and Technology Innovation (IAECST 2019)
|Number of page(s)||10|
|Section||International Conference on New Energy Science and Environmental Engineering|
|Published online||06 February 2020|
Analysis of the impact of road construction dust on glacier environment
1 Research Institute of Highway Ministry of Transport, Beijing, 100088, China
2 China Aviation Planning And Design Institute (GROUP)CO., LTD, Beijing, China
3 University of science and technology Beijing, Beijing, China
4 Beijing Municipal Engineering Consulting Corporation, Beijing, China
5 Beijing Z.D.H.K Environmental Science & Technology Co.,Ltd
Construction dust falls to the snow cover and the surface of the glacier to form a fouling layer to absorb more solar radiation and reduce the intensity of surface albedo, thereby accelerating the melting of the glacier, which is the main factor affecting the glacial environment in the Highway construction. This article adopts the combination method of wind tunnel experiment and numerical simulation was used to calculate the impact range of construction dust. The results show that with increasing of particle size, the diffusion range of dust decreased while the settlement speed increased. High dust concentration area (> 4mg / m3) is generally distributed within 1000m around the construction site. The specific extension direction is directly related to the local terrain and wind direction, and the height direction is generally not more than 300m. According to the above simulation results, for preventing and reducing the impact of highway construction on the glacial environment, the requirements of route selection and construction dust control measures was put forward, which played an important role and significance in guiding the highway design and construction and reducing the impact of highway construction on the glacial environment.
© The Authors, published by EDP Sciences 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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