Research Article

Differential Analysis and Prediction Optimization of Ground Surface Settlement Induced by Quasi-Rectangular Shield and Pipe Jacking Tunnelling

Table 2

Stratum physical parameters.

StratumK0γ (kN/m3)Es (MPa)C (kPa)φ (°)

①1 miscellaneous fill0.5017.503.000.338.0015.00
②4 sandy silt0.5219.206.000.344.0026.00
③4 sandy silt0.4519.2014.000.326.0030.00
③5 sand with sandy silt0.3719.7010.000.285.0034.00
③7 sandy silt0.5219.4015.000.317.0024.00
⑥2 muddy silty clay0.3819.904.000.2712.0010.00
⑦2 silty clay0.4518.208.500.3410.0016.00

Here ①1 represents the first layer in the first layer of the stratum and ②4 represents the fourth layer in the second layer of the stratum, etc.