FORECAST AND ANALYSIS ON LATERAL DISPLACEMENT OF FOUNDATION PIT EXCAVATION OF A SUBWAY STATION IN HANGZHOU

The paper introduces the monitoring lateral displacement of foundation pit excavation of a subway station in Hangzhou,and summarizes its changing law,which provides references for the construction.Then a numerical simulation of the lateral displacement of the pit is conducted with FLAC.The simulation results are compared with monitoring results,and the factors which affect the accuracy of numerical simulation are discussed.