Numerical Simulation and Optimization Design of End-Suspended Pile Support for Soil-Rock Composite Foundation Pit

Table 3

Support structure parameters.

Supporting structure	Axial stiffness (kN)	Bending stiffness (kNm^2)	Poisson’s ratio	Ultimate bending moment (kN·m)	Ultimate pull (kN)
Retaining pile	1.908 × 10^7	6.435 × 10^5	0.2	573.5	—
Sprayed concrete	2.550 × 10^6	2125	0.2	37.70	—
Rock soil nailing	1.239 × 10^5	—	—	—	120