NUMERICAL ANALYSIS OF FOUNDATION EXCAVATION ON ADJACENT PILE RAFT FOUNDATION
Based on a project of a subway foundation excavation, the deformation of the retaining piles and their im-pact on adjacent pile raft foundations under different working conditions during the excavation process are numeri-cally simulated with hardening model of soil by Plaxis 2D software. The calculation results show that the level dis-placement of the retaining piles is closely related to the depth variation and support, and the removal of the support top plate is the most unfavorable working condition. The maximum horizontal displacement of the building pile foun-dation is 14.7 mm, construction monitoring of building pile foundations should be strengthened.
foundation excavationPlaxis 2Dsoil hardening modelmost unfavorable working conditions