Evaluation of Seismic Simplified Methods for Deep Circular Tunnel
Firstly several seismic simplified methods commonly used for deep circular tunnel are evaluated and the difficulties in response displacement method are pointed out. Then the analytical solution of soil spring coefficient and soil response of deep circular tunnel is derived from using complex variable theory of planar elastic theory based on pseudo-static hypothesis. The analytical solution has been verified by comparing its predictions with results from an analysis in finite element method. It is concluded that the analytical solution can be regarded as one feasible reference for the simplification of response displacement method.
Z. F. Dong et al., "Evaluation of Seismic Simplified Methods for Deep Circular Tunnel", Advanced Materials Research, Vols. 261-263, pp. 1862-1866, 2011