Abstract: Under the seismic action, factors affecting the seismic response of underground structure are complicated, among which the embedded depth of underground structures is taken into consideration. In order to know effects of embedded depth on seismic response of structures, we established two models with different depths, using the FLAC software for numerical simulation. The research result shows that, for given position of seismic wave, responses for underground structures at different embedded depths tend to be not obviously different under the conditions of unchanged incident wave.

Key words: embedded depth, underground structure, seismic response, difference and similarity, FLAC software