Mechanical Analysis of Flexible
Base Durable Asphalt Pavement Structure
SONG Yang1,2, SUN
Wen-jun1,2*,
ZHU Xiao-yun4, ZHANG Hai-feng2,3
1.
Hebei Engineering and Technical College,
Cangzhou, Hebei, 061001, China
2.
College of Civil Engineering, Hebei
University of Technology, Tianjin 300401, China
3.
HuaBei Expressway Co., Ltd, Beijing,
100176, China
4.
Tianjin transportation vocational college,
Tianjin,
300110, China
Abstract:
In order to provide basis for the
design of flexible base durable asphalt pavement structure. The influence of all
kinds of parameter combination on different control indicators was analyzed by
combining the extremum of each structure-layer parameters, such as different
asphalt aggregate thickness, different layer thickness under the same total
thickness, and different elasticity modulus. Regression analysis was carried out
based on the data in database by the using of Minitabdata analysis software. The
mechanical response model was obtained. And the influence that each
structure-layer parameters acting on the mechanics index of pavement structure
were measured. The research shows that the total thickness of asphalt layer is
the key influence parameter of tensile strain indicator of asphalt layer bottom.
The flexible base layer thickness is the main influence parameters of top soil
base compression strain index. The flexible subbase modulus parameter has
influence on every index obviously. Soil base modulus is the main influence
parameter of surfacing deflection and the top soil base compressive strain
index.
Key words:
flexible base; durable pavement;
asphalt layer bottom tensile stress; top soil base compression strain;
mechanical response model
International Journal of Ground Sediment & Water
ISSN: 2372-0743 (print) ISSN: 2373-2989 (on line)
Journal Website:
http://ijgsw.net/
You can submit your
paper to email: Jichao@email.com
Or
IJGSW@mail.com