Abstract: The impact of engineering excavation on the adjacent foundations is more and more frequently encountered in the construction. In this paper, the influence of the pipeline excavation for a pumping station in Shenzhen on the nearby bridge foundations is numerically analyzed. The process of the excavation is simulated from the initial ground stress state to the final excavation and the stresses in soil as well as in the bridge foundations are obtained. The safety of the pile bridge foundation is evaluated in accordance with the current code and the results are satisfactory.

Key words: Pile Foundations, Excavations, Stress, Deformation, Numerical Analysis