不平顺条件下高速列车运行引起的地基振动

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Abstract In order to precisely study the environmental vibration generated by high-speed train，based on the equilibrium equation of the trains，combined with the track bending equation，a simplified analytical expression for train dynamic load is derived considering geometric irregularities. Then，the deduced train dynamic load is input to analyze the influences of wavelength and amplitude on ground vibration by 2.5D finite element method(FEM). The results show that：the wheel-rail force and ground vibration acceleration enlarge with the increasing track irregularity amplitude considering the irregularity wavelength and train speed as constant values. The wheel-rail force and ground vibration acceleration decrease with the increasing track irregularity wavelength considering the irregularity amplitude and train speed as constant values.

Key words： subgrade engineering high-speed railway railway geometric irregularities train loads 2.5D finite element method(FEM) ground vibration

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	Articles by authors
	CHEN Gongqi1
	2
	GAO Guangyun1
	2
	ZHAO Hong1
	2

Cite this article:

CHEN Gongqi1,2,GAO Guangyun1, et al. GROUND VIBRATION INDUCED BY HIGH-SPEED RAILWAY OPERATION WITH GEOMETRIC IRREGULARITIES[J]. , 2013, 32(s2): 4123-4130.

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/4123

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