The solution of Green function for the displacement response of the saturated soil tunnel by concentrated load
Ding Bo-yan1;Dang Gai-hong2;Yuan Jin-hua1
(1. Institute of Protection Building for Disaster Prevention, Zhejiang University of technology, 310014, China)(2. Zhejiang forest college, 310032, China)
Abstract： Since the saturated soil under the impact or harmonious load to tunnel will appear vibration displacement, which concerns the liquefaction, and shacked subsidence. The more rapid the super railway and metropolitan subway are developed, the more important the problem of dynamic response that the concentrated force acts inside of saturated soil tunnel is. The Green function has particular superiority for dynamic soil, because it meets the requirement of radiation condition, and it is the accurate solution to integral equation, so that it is widely used in BEM. This essay will be base on the tunnel’s section feature located in saturation soil, in order to analysis its displacement tremor by using integration method. With Green function the close solutions of response about vibration displacement by the impact or harmonious acted to inside of saturation soil tunnel, the travel time cause of elasticity waves and the transient and ordinary modes have been got. Moreover on the basis about response function of the unit impulse with Duhamel's integration the seismic response of the tunnel can be obtained also. On other side, the some results on the tunnel of common window shape were shown. After being calculated, the values indicate that is relevance.
丁伯阳;党改红;袁金华. Green函数对饱和土隧道内集中荷载作用振动位移反应的计算[J]. , 2009, 28(11): 110-114.
Ding Bo-yan;Dang Gai-hong;Yuan Jin-hua . The solution of Green function for the displacement response of the saturated soil tunnel by concentrated load . , 2009, 28(11): 110-114.
2009, Vol. 28 
