NUMERICAL SIMULATION OF PIT DEFORMATION IN PREFABRICATED SUBWAY STATION
The excavation process of the prefabricated subway station excavation is simulated by using finite ele-ment software,in which the impact factors on the support system and surrounding environment deformation are stud-ied.The results show that during the excavation process,the overall support structure exhibits a trend of inward com-pression;the stress redistribution occurs in the surrounding soil;the soil inside the pit is to bulge.With the installa-tion of prefabricated components,the stress and strain of the negative second-floor sidewalls gradually increase and eventually stabilize,which reflects the good transfer performance between the structures.
prefabricated subwaypit excavationsupport structurefinite element analysis