抄録
This paper presents the influence of a pile on ground vibration induced by a moving train in an underground tunnel. A coupling of 2.5-D and 3-D boundary element method (BEM) is used to obtain displacement amplitudes on a surface around the pile top. First, a 2.5-D BEM is used to obtain an incident wave field in a 3-D half space, without a pile, subjected to an underground moving load. Second, 3-D BEM is carried out for a soil-pile model using the obtained incident wave field. Numerical results show that the presence of a pile may increase the ground vibration level around the pile top at low frequencies.
