Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical Simulation on Soil Arch Effect and Load Reduction Mechanism Using EPS of High Fill Culvert
The stress-strain relationship of EPS board was analyzed. Theoretical analysis and numerical simulation (FE ABAQUS) were conducted to investigate the load reduction mechanism using EPS and soil arch effect of high fill culvert based on the constitutive relation of EPS board. The results show that the numerical analysis results are consistent with the theory analysis. It shows that the soil arch forms over the culvert top and partial weight of the soil column exactly over the culvert has been transferred to the outer soil column via the soil arch during the yield stage of EPS board, which produce large deformation. Furthermore, the numerical simulation by using particle flow discrete element software (PFC2D) was conducted to investigate the soil arch effect over the culvert top. The research reveals that the EPS board is at elastic state and the soil arch effect on culvert top is not obvious at low fill. With the increasing of the fill over the culvert, the EPS board becomes into the yield state, the soil arch effect over the culvert increases and the earth pressure on culvert reduces gradually.
Numerical Simulation on Soil Arch Effect and Load Reduction Mechanism Using EPS of High Fill Culvert
The stress-strain relationship of EPS board was analyzed. Theoretical analysis and numerical simulation (FE ABAQUS) were conducted to investigate the load reduction mechanism using EPS and soil arch effect of high fill culvert based on the constitutive relation of EPS board. The results show that the numerical analysis results are consistent with the theory analysis. It shows that the soil arch forms over the culvert top and partial weight of the soil column exactly over the culvert has been transferred to the outer soil column via the soil arch during the yield stage of EPS board, which produce large deformation. Furthermore, the numerical simulation by using particle flow discrete element software (PFC2D) was conducted to investigate the soil arch effect over the culvert top. The research reveals that the EPS board is at elastic state and the soil arch effect on culvert top is not obvious at low fill. With the increasing of the fill over the culvert, the EPS board becomes into the yield state, the soil arch effect over the culvert increases and the earth pressure on culvert reduces gradually.
Numerical Simulation on Soil Arch Effect and Load Reduction Mechanism Using EPS of High Fill Culvert
Applied Mechanics and Materials ; 701-702 ; 879-887
05.12.2014
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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