TY - JOUR
T1 - Three-dimensional finite element simulations of ground vibration generated by high-speed trains and engineering countermeasures
AU - Wang, Judith C.
AU - Zeng, Xiangwu
AU - Mullen, Robert L.
PY - 2005/12
Y1 - 2005/12
N2 - In this paper we discuss the benefits of using rubber-modified asphalt concrete in high-speed railway foundations. We present the results from a series of three-dimensional finite element simulations modeling a high-speed train foundation utilizing various trackbed materials. Four trackbed materials were tested for their relative vibration attenuation capacities: ballast, concrete, conventional asphalt concrete, and rubber-modified asphalt concrete. Additionally, studies varying the speed and the weight of the passing train were performed. Parametric studies varying the dimensions of the trackbed underlayment were also examined. From these numerical simulations, it is shown that rubber-modified asphalt concrete outperforms other traditional paving materials in ground vibration attenuation. It is also shown that the speeds and weights of the passing trains and the dimensions of the trackbed have significant effects on the relative performance of the paving materials. Implications for design are discussed.
AB - In this paper we discuss the benefits of using rubber-modified asphalt concrete in high-speed railway foundations. We present the results from a series of three-dimensional finite element simulations modeling a high-speed train foundation utilizing various trackbed materials. Four trackbed materials were tested for their relative vibration attenuation capacities: ballast, concrete, conventional asphalt concrete, and rubber-modified asphalt concrete. Additionally, studies varying the speed and the weight of the passing train were performed. Parametric studies varying the dimensions of the trackbed underlayment were also examined. From these numerical simulations, it is shown that rubber-modified asphalt concrete outperforms other traditional paving materials in ground vibration attenuation. It is also shown that the speeds and weights of the passing trains and the dimensions of the trackbed have significant effects on the relative performance of the paving materials. Implications for design are discussed.
KW - Finite elements
KW - Ground vibration
KW - High-speed rail
KW - Rubber-modified asphalt concrete
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U2 - 10.1177/1077546305056460
DO - 10.1177/1077546305056460
M3 - Review article
AN - SCOPUS:29144533361
SN - 1077-5463
VL - 11
SP - 1437
EP - 1453
JO - JVC/Journal of Vibration and Control
JF - JVC/Journal of Vibration and Control
IS - 12
ER -