Design of large and deep excavation in underconsolidated soils in reclaimed areaof Shenzhen Airport

The excavation of deep foundation pits in underconsolidated soils has been a problem in the field of geotechnical engineering. Based on the excavation of rail transport hub of Shenzhen Airport, the excavation difficulties and countermeasures in soft soils are analyzed piles. The supporting scheme of interlocking anchors, and cables is introduced. The increase law of consolidation of silt is adopt to estimate its strength. Combine with the stresses of anchors and cables the finite element analysis is performed. The monitoring results show that the calculated results agree with the measured ones. The safety and rationality of the supporting design are validated.|