The Risk Control of Subway Foundation Excavation During Design

The subway foundation excavation is always deeper than general building excavation,and it always located beneath the city trunk road.Large number of pipelines surrounding the subway foundation excavation are effected by dynamic load,so the security of foundation excavation is difficult to secure with great risk.It have great significance to subway foundation excavation and surrounding buildings security by recognizing and effectively preventing the risks.The author analyze the influence factors of subway foundation excavation safety from the planning to design in order to reduce the risk of subway foundation excavation.