Abstract: The excavation of a deep foundations surrounded by dense distributed tall buildings or close to underground utilities and ground transportation facilities will change the initial equilibrium of the soil. As a result, differential settlements of the nearby ground and soil deformation in the excavated area will be induced. If the deformation control is not effective, it will have adverse effects on the surrounding buildings and/or structures. This paper presents a case history of a deep excavation project in Wuhan City. The excavation project is close to a subway tunnel and is surrounded by deep foundation supported tall buildings. The construction monitoring location distribution were optimized by the numerical simulations under various loading combinations and construction conditions under densely distributed tall buildings and other structures. Different deformation criteria from various buildings, utilities and other structures were considered and their deformation management control levels were suggested. The results indicate that these deformation control measures were effective and satisfactory.

Key words: Deep Excavation Projects, Construction Monitoring Layout, 〖JP2〗Deformation Management Levels, Numerical Simulation