Research Article

Retaining Structure Force-Deformation Analysis Model for an Ultradeep Foundation Pit

Table 1

Stress path coefficient of initial tangent modulus (Wei, 2006 [20]; Hu, 2008 [19]).

Soil layerStress pathInitial tangent modulus Stress path coefficient

2-3Vertical compressionVertical tangent modulus158
2-3Lateral unloadingLateral tangent modulus83
2-3Vertical unloading469
2-6Vertical unloading511