NUMERICAL ANALYSIS OF INUNDATION PROCESS IN UNDERGROUND SPACE OF SUBWAY STATION

Abstract

Inundation process in underground space which connecting some platforms of subway stations in urban area was investigated in the present study. Tameike-sanno subway station is the site to be discussed, and actual data sets of road network and underground space and some more were all considered, and simplified numerical model was developed. Based on the results of numerical computation, the pattern of inundation process here was understood quantitatively. It was suggested that if the intensity of rainfall exceeds some critical value, the damage in the underground space is expected more serious than the state under the condition of real rainfall which we experienced.