Open AccessResearch on transitional pavement structures based on foundation settlement in goafs
Author(s) -
Jinjun Guo,
Zhengkai Yang,
Lijuan Cheng,
X. Y. Li,
K. P. Chen
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/304/4/042045
Subject(s) - consolidation (business) , geotechnical engineering , foundation (evidence) , settlement (finance) , human settlement , geology , mining engineering , engineering , geography , archaeology , accounting , world wide web , computer science , business , payment , waste management
Based on actual engineering geological conditions, foundation settlements and the effects of goaf’s positions on the settlements were measured to study the effects of underlying goaf on the road construction. Four transitional pavement structures with various base course were designed in goaf-affected areas. Under the soil consolidation settlement and traffic loading, the mechanical response of transitional pavement structures was simulated and analyzed. The critical safety zone of the goaf was obtained along the depth and the horizontal directions, respectively. The results indicate that the transitional pavement structure containing graded gravel base exhibited the minimum uneven settlement and pavement inclination under the condition of soil consolidation settlement. under traffic loading, the minimum tensile stress existed at the bottom of graded gravel base compared with that of the other three transitional pavement structures. Therefore, the flexible pavement with graded gravel base course is proposed as the transition pavement the mined-out areas.