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Engineering Geology Simulations

A collection of interactive 3D visualizations and simulations to help you master concepts in engineering geology.

Introduction to Geology - Theory & Concepts

Comprehensive overview of geology, earth structure, and plate tectonics relevant to civil engineering.

Plate Boundaries Simulator

Divergent Boundary

Plates move apart from each other. Magma rises from the mantle to create new crust.

Famous ExamplesMid-Atlantic Ridge, East African Rift

Minerals and Rocks - Theory & Concepts

Identification, properties, and engineering significance of minerals and rocks.

IgneousMetamorphicSedimentaryMagmaSediments
Click a rock type to explore

Select a stage in the rock cycle diagram to see details about its formation and properties.

Structural Geology - Theory & Concepts

Study of the three-dimensional distribution of rock units and their deformation.

Strike & Dip Visualizer

Adjust the sliders to understand how geological orientations are measured.

45°

The direction of the line formed by the intersection of the rock layer with a horizontal plane.

30°

The steepest angle of descent of the rock layer relative to the horizontal plane.

Note: Strike is always perpendicular to the Dip direction.

Drag to Rotate • Scroll to Zoom

Rock Mechanics - Theory & Concepts

Mechanical properties of rock masses for tunnels, foundations, and slopes.

Mohr's Circle for Plane Stress

Input Stresses (MPa)

Principal Results

Center (C)
50.0
Radius (R)
50.0
Max Principal (σ1\sigma_1)
100.0
Min Principal (σ2\sigma_2)
0.0
Max In-Plane Shear (τmax\tau_{max})
50.0
Loading chart...
Red dots indicate principal stresses, max shear stresses, the center, and the original state of stress faces (X and Y).

Surface Processes - Theory & Concepts

Weathering, erosion, and mass wasting processes shaping the Earth's surface.

Slope Stability Calculator

FS = 1.04
Gravity
Normal
Friction
30 °
25 °
10 kPa
20 kN/m³
5 m
Resisting Stress45.0 kPa
Driving Stress43.3 kPa

Hydrogeology - Theory & Concepts

Groundwater occurrence, movement, and quality for civil engineering projects.

Darcy's Law Experiment

Q = 0.5000 cm³/s
h₁
h₂
Hydraulic Head (h₁)80 cm
Hydraulic Head (h₂)30 cm
Permeability (K)50 x10⁻³ cm/s
Soil Length (L)100 cm
Hydraulic Gradient (i)0.500

Earthquakes and Seismology - Theory & Concepts

Seismic waves, earthquake causes, and hazard assessment for civil engineering.

Seismic Wave Visualizer

Primary (P) Waves

Compressional waves that travel through solids, liquids, and gases. They are the fastest seismic waves and move in a push-pull motion parallel to the direction of wave propagation.

Speed: Fast (~6-13 km/s)
Medium: Solid, Liquid, Gas

Geological Hazards - Theory & Concepts

Natural hazards including subsidence, volcanoes, and coastal processes.

Soil Liquefaction Potential Simulation

Lower values = looser sand, Higher values = denser sand.

Analysis Results

Cyclic Stress Ratio (CSR) approx\\approx 0.20

Cyclic Resistance Ratio (CRR) approx\\approx 0.30

Factor of Safety (FS) = 1.54

Safe: No Liquefaction expected.

Building

Geophysical Methods - Theory & Concepts

Non-destructive subsurface exploration techniques for engineering geology.

Geophysical Methods Simulator

Select a method to visualize its core principles and primary applications.

Soil (V1 = 400 m/s)
Bedrock (V2 = 2000 m/s)
Method Highlights

Measures elastic wave velocities to determine depth to hard bedrock and rock rippability.

Engineering Applications - Theory & Concepts

Geological considerations for major civil engineering projects including dams, tunnels, and highways.

Geological Conditions

80%
Overall StabilityHigh
Foundation SeepageMinimal
GRAVITY DAM
granite Foundation

Note: In granite, stability is high. Limestone can have voids causing massive seepage. Shale is weak and can cause sliding. Faults introduce severe instability. A grout curtain significantly reduces seepage.