Dynamic response of a pavement-subgrade-soft ground system subjected to moving traffic load

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Dynamic response of a pavement-subgrade-soft ground system subjected to moving traffic load
	Liu, Jie; Lu, Zheng; Yao, Hailin; Hu, Zhi
刊名	JOURNAL OF VIBROENGINEERING
	2014
卷号	16 期号:1 页码:195-209
关键词	FFT algorithm moving load pavement soft subsoil dynamic stiffness matrix dynamic response
ISSN号	1392-8716
英文摘要	This paper introduces a three-dimensional model for the steady-state response of a pavement-subgrade-soft ground system subjected to moving traffic load. A semi-analytical wave propagation model is introduced which is subjected to four rectangular moving loads and based on a calculation method of the dynamic stiffness matrix of the ground. In order to model a complete road system, the effect of a simple road model is taken into account including pavement, subgrade and soft subsoil. The pavement and the subgrade are regarded as two elastic layers resting on a poroelastic half-space soil medium. The priority has been given to a simple formulation based on the principle of spatial Fourier transforms compatible with good numerical efficiency and yet providing quick solutions. The frequency wave-number domain solution of the road system is obtained by the compatibility condition at the interface of the structural layers. By introducing FFT (Fast Fourier Transform) algorithm, the numerical results are derived and the influences of the observation coordinates, the load speed and excitation frequency, the permeability of the soft subsoil, and the rigidity of the subgrade on the response of the pavement-subgrade-soft ground system are investigated. The numerical results show that the influences of these parameters on the dynamic response of the road system are significant.
WOS研究方向	Engineering
语种	英语
出版者	JOURNAL VIBROENGINEERING
WOS记录号	WOS:000331525500017
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3565]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Liu, Jie,Lu, Zheng,Yao, Hailin,et al. Dynamic response of a pavement-subgrade-soft ground system subjected to moving traffic load[J]. JOURNAL OF VIBROENGINEERING,2014,16(1):195-209.
APA	Liu, Jie,Lu, Zheng,Yao, Hailin,&Hu, Zhi.(2014).Dynamic response of a pavement-subgrade-soft ground system subjected to moving traffic load.JOURNAL OF VIBROENGINEERING,16(1),195-209.
MLA	Liu, Jie,et al."Dynamic response of a pavement-subgrade-soft ground system subjected to moving traffic load".JOURNAL OF VIBROENGINEERING 16.1(2014):195-209.