A point-load platen stands above an elastic soil cutaway. Colored sample stations and contours show vertical stress spreading with depth; move a probe radially and downward to compare the centerline with off-axis stress.
• 3D scene parts: Load actuator and point reference; elastic soil section; stress field stations; movable stress probe; stress recorder. • Controls: Point load (25–250 kN); Probe depth (0.5–5 m); Probe radial offset (0–4 m). • Live readouts: Applied load (kN); Probe vertical stress increment (kPa); Centerline increment at same depth (kPa); Distance from load point (m); Stress per unit load (1/m²). • Guided experiments: Deep probe; Off-axis probe; Double point load. • Four tabs (visual laboratory, curves and measurements, experiments, learn and assess), a model-verification run, a timestamped event log and a trial report.
Δσz=3P/(2πz²) [1+(r/z)²]^(−5/2) P in kN, r and z in m → Δσz in kPa At r=0: Δσz=3P/(2πz²)
Boussinesq point load on a homogeneous isotropic elastic half-space. No finite footing integration, yielding, layered stiffness or settlement calculation. Probe depth is kept away from z=0. Stress is an increment; in-situ overburden and pore pressure are not included. Displayed stress contours are sampled guides. Try the preset experiments, then compare the live readouts with the equations.
No. It marks a mathematical point load.
Yes. The centerline equation varies as 1/z².
Boussinesq point load on a homogeneous isotropic elastic half-space. No finite footing integration, yielding, layered stiffness or settlement calculation. Probe depth is kept away from z=0. Stress is an increment; in-situ overburden and pore pressure are not included. Displayed stress contours are sampled guides.