Simulator Library
Geotechnical Engineering Simulators
Geotechnical simulators for bearing capacity, settlement, consolidation, slopes, retaining walls, piles, and liquefaction.
43 simulators
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Aquifer Pump Test Theis Simulator
Compare time-drawdown curve, cone of depression, and Theis type curve to see how observation conditions affect estimates.
Asphalt Pavement Rut Depth Prediction Simulator
Predict permanent deformation (rutting) of an asphalt pavement with the Jenkins empirical equation (LRRB 99-31).
Atterberg Limits & Plasticity Index Simulator
Explore the boundary water contents at which a fine-grained soil — a clay or a silt — passes between its solid, semi-solid, plastic and liquid states.
Beam On Elastic Foundation Simulator
Visualize how stronger subgrade support shortens the active support length and reduces settlement.
Bearing Capacity Calculator (Terzaghi & Meyerhof)
Calculate soil bearing capacity instantly with Terzaghi & Meyerhof formulas. Includes shape, depth corrections, elastic settlement, and safety factors.
Boussinesq Stress Simulator
See how a concentrated load applied at the ground surface spreads down and outward through the soil mass.
Braced Excavation Strut Load Simulator
Design the strut support for a braced excavation (braced cut) dug deep for an underground structure.
Combined Footing Pressure Simulator
Design a combined footing — a single footing that supports two columns.
Constant-Head Permeability Test Simulator
Simulate the constant-head permeability test used to measure the coefficient of permeability of coarse, free-draining soils such as sands and gravels.
Rankine Earth Pressure Simulator — Active and Passive Earth Pressure on Retaining Walls
Rankine earth pressure simulator. Compute active Pa, passive Pp and at-rest Ko pressures on retaining walls in real time, with live phi/gamma/H/q diagrams.
Earthquake Magnitude & Intensity Converter
Adjust magnitude, focal depth, and epicentral distance to instantly compute PGA, JMA seismic intensity, and MMI scale. Visualize seismic wave propagation from hypocenter…
Earthquake-Induced Liquefaction Settlement Calculator
Calculate post-liquefaction ground settlement using the Tokimatsu-Seed method. Essential tool for geotechnical engineers assessing seismic soil stability.
Falling-Head Permeability Test Simulator
Reproduce the falling-head permeability test used to measure the coefficient of permeability (hydraulic conductivity) of a fine-grained soil. Adjust the standpipe area, …
Flow Net Seepage Simulator
Solve the seepage flowing under a dam or a sheet-pile wall with a flow net. Adjust the head difference, permeability, number of flow channels and equipotential drops to …
Foundation Settlement Calculator — Terzaghi Bearing Capacity & Consolidation
Input foundation width, embedment depth, applied load, N-value, and soil type to compute Terzaghi bearing capacity, safety factor, and consolidation settlement. Visualiz…
Geofoam EPS Lightweight Embankment Settlement Simulator
When you build a road or bridge-approach embankment on soft ground, conventional fill keeps settling for decades. EPS (expanded polystyrene) geofoam weighs about 1/100 a…
Ground Anchor Pull-Out Capacity Simulator
Instantly compute the pull-out capacity of a ground anchor — essential for retaining walls, earth-retention, dam foundations and transmission towers that have to be "pul…
Hydraulic Fracture Design Calculator
Calculate fracture initiation pressure, closure pressure, and fracturing window from in-situ stress, pore pressure, and rock strength in real time. Visualize depth-press…
Landslide Slope Stability Factor (Bishop Simplified Method) Simulator
Solve the factor of safety Fs of a slope with an assumed circular slip surface using the iterative Bishop simplified method (1955). Adjust slope height, slope angle, coh…
Soil Liquefaction Assessment Tool — FL Method & SPT-N
Evaluate earthquake-induced liquefaction potential in real time. Enter SPT-N value, fines content, groundwater depth, and earthquake parameters to compute FL, PL index, …
Permafrost Thaw & Active Layer Depth Simulator
Predict the summer active layer depth in permafrost terrain using the Stefan equation.
Darcy's Law Flow Calculator — Porous Media Permeability
Calculate Darcy velocity & flow rate instantly. Select porous medium, fluid, set pressure gradient & area. Visualize seepage flow with REV concept.
Pile Foundation Bearing Capacity Calculator (Alpha/Beta Method)
Calculate pile foundation bearing capacity instantly. Input diameter, length, soil type & strength for tip resistance, skin friction & ultimate load.
Pile Negative Skin Friction Simulator
Use the beta-method to calculate the downdrag — the negative skin friction — that a consolidating soft layer applies to a pile.
Plate Load Test Simulator
A tool that scales the settlement measured with a small bearing plate up to predict how a real, full-size foundation will settle.
Proctor Compaction Test Simulator
A tool for the soil compaction test that controls how reliably embankments and pavements are compacted.
Retaining Wall Design Calculator (Rankine & Coulomb)
Design retaining walls with stability analysis using Rankine & Coulomb theories. Calculate real-time safety factors for overturning, sliding, and bearing capacity.
Percussion Rock Drilling Energy Simulator
A design tool for DTH (Down-The-Hole), top-hammer and rotary percussion drills. Adjust piston mass, velocity, blow frequency, air pressure and bit diameter to see single…
Seismic Arrival Time Simulator — P-wave, S-wave & Travel Time Curves
Calculate P-wave and S-wave travel times for a layered Earth model. Generate travel time curves for earthquake seismology and geophysical exploration.
Seismic Wave Propagation Simulator — P-wave & S-wave Through Earth
Visualize seismic wave propagation through Earth's layers in real-time. See P-waves, S-waves, reflection, refraction, and the shadow zone.
Cantilever Sheet Pile Embedment Simulator
Explore how a cantilever sheet pile wall — with no anchors and no struts — stands up purely by being driven deep into the ground.
Dynamic Slope Stability Analysis
Calculate slope stability with the Newmark method. Input geometry, soil strength, and quake data to get factor of safety, yield acceleration, and permanent displacement.
Slope Stability Analysis
Calculate slope safety factors in real-time using the simplified Bishop method. Set geometry, soil parameters, and groundwater level for stability analysis.
Soil Consolidation Settlement Calculator — Terzaghi Theory
Calculate final settlement and consolidation times for NC/OC clay using Terzaghi's theory. for geotechnical engineering analysis.
Soil Liquefaction Potential Calculator | SPT, CSR/CRR, Factor of Safety, Seed-Idriss
Calculate liquefaction potential using the Seed-Idriss method. Input SPT N-values for real-time CSR, CRR, and Factor of Safety analysis with depth.
Soil Mechanics Simulator — Mohr-Coulomb, Bearing Capacity & Consolidation
Visualize Mohr circles and Coulomb failure in real time. Calculate Terzaghi bearing capacity and consolidation settlement for shallow foundations.
Soil Moisture Tensiometer & van Genuchten Model Simulator
Compute volumetric water content, field capacity, wilting point, available water content and plant-available depth in real time from the matric potential ψ measured by a…
Soil Nail Wall Simulator
Design a soil-nailing system that reinforces a cut slope or excavation face with grouted steel nails. Adjust the nail length, drill diameter, bond stress and spacing to …
Soil Permeability Calculator — Darcy Flow Coefficient
Enter constant-head or falling-head permeameter test data to compute hydraulic conductivity k via Darcy's law. Compare against typical soil types and visualize the test …
SPT N-Value Correction Simulator
Take a measured Standard Penetration Test blow count and correct it for hammer efficiency, rod length and effective overburden stress to obtain N60 and (N1)60 for design.
Stone Column Ground Improvement Simulator
Design tool for the stone column (vibro-replacement) method, in which stiff gravel columns are installed on a regular grid through soft clay.
NATM Tunnel Support Design Calculator — GRC/SCC Real-Time Plot
Visualize ground reaction & support curves in real-time. Instantly compute NATM tunnel support design using Mohr-Coulomb elasto-plastic theory.
Vertical Drain Consolidation Simulator
Calculate how vertical drains, installed in a regular grid through soft clay, accelerate consolidation, using Barron's radial-consolidation theory.
How to Use
- Select a geotechnical analysis module: bearing capacity (Terzaghi/Meyerhof), settlement (elastic/Schmertmann), consolidation (Terzaghi 1D), slope stability (Fellenius/Bishop), retaining wall (Rankine/Coulomb), pile capacity (static formulas), or liquefaction (SPT-based CRR).
- Input soil parameters: unit weight (γ), friction angle (φ), cohesion (c), elastic modulus (Es), permeability (k), and layer thickness.
- Apply loading conditions (foundation width B, depth Df, applied stress, groundwater table depth) and run simulation to generate bearing capacity factors, settlement curves, or safety factors.
Worked Example
For a shallow square foundation on medium dense sand: B=1.5 m, Df=1.0 m, γ=18.5 kN/m³, φ=32°, c=0 kPa. Meyerhof method yields Nc=35.5, Nq=23.2, Nγ=19.1, giving ultimate bearing capacity qu=520 kPa. With factor of safety 3.0, allowable bearing capacity qa=173 kPa. Settlement using Schmertmann method with Es=25 MPa over 2 m influence depth: immediate settlement ≈18 mm, primary consolidation ≈12 mm, total ≈30 mm.
Practical Notes
- For clay layers, run consolidation analysis using Cv from oedometer tests to predict settlement timescale; Terzaghi solution indicates time to 50% consolidation at typical H=5 m, Cv=5 m²/year is 2.5 years.
- Use Bishop's simplified slope stability method for circular failure surfaces when FS is marginal (1.0–1.5); compare with Fellenius for rapid validation.
- Liquefaction potential peaks when SPT N60<15 blows/foot in saturated silts near water table; CRR factor for magnitude 7.5 earthquake governs design depth in seismic zones.
- Retaining wall earth pressure at rest (K0=1-sinφ) applies to tied-back walls; active Rankine pressure (Ka) controls cantilever design; check base sliding friction coefficient ≥0.4 for dense sand.