Study on Mechanical Properties of Flexible Base Asphalt Pavement in Permafrost Regions

DOI

10.2991/icammce-18.2018.42How to use a DOI?

Keywords

Permafrost regions, Mechanics characteristics of pavement structural, Numerical simulation, Displacement deformation, Maximum principal stress

Abstract

In order to study the adaptability of reasonable pavement structure in permafrost regions, the first-stage construction of Gonghe-Yushu highway from K629 + 800 ~ K634 + 200 is taken as test section, and establishes the numerical simulation model of subgrade and pavement by using Flac3D software. Compares and analyzes the mechanical properties with semi-rigid base asphalt pavement and flexible base asphalt pavement structure. In the end, recommends a reasonable pavement structure type in permafrost regions: flexible base asphalt pavement structure. The results show that: in the long term, the deformation range of flexible pavement structure is less than the semi-rigid base pavement structure. Therefore, the permafrost region pavement structure should give priority to the flexible base asphalt pavement structure.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yingying Li
AU  - Xuesong Mao
AU  - Baolong Zhang
PY  - 2018/05
DA  - 2018/05
TI  - Study on Mechanical Properties of Flexible Base Asphalt Pavement in Permafrost Regions
BT  - Proceedings of the 2018 3rd International Conference on Advances in Materials, Mechatronics and Civil Engineering (ICAMMCE 2018)
PB  - Atlantis Press
SP  - 184
EP  - 187
SN  - 2352-5401
UR  - https://doi.org/10.2991/icammce-18.2018.42
DO  - 10.2991/icammce-18.2018.42
ID  - Li2018/05
ER  -