Abstract: The Lin'an Logistics Park in Shiyan City is now under construction. When it is completed, it will be the largest automobile accessary supply center in Asia. The Fulongkou No. 2 Tunnel, which is the tunnel for the existing Xiangyu Second Rail Line, is underneath the park. The effect of the logistic park construction on the safety of operation of the railway tunnel is studied in this paper. The impact of the construction activities of the park on the stability of the tunnel is numerically simulated. The results indicate that the proposed building has minimal impact on the existing tunnel, however, the proposed earthwork (fill) will has a significant impact on the stability of the tunnel. It is suggested that constructing the arch structure or using the sheet pile wall to spread the vertical fill load to both sides of the tunnel if the fill operation has to be conducted.  

Key words: Existing Tunnel, Logistic Park, Building Load, Loads from Fill Embankment