Apps

Rock-strength TEst Simulation: A Learning tool

This web-based application provides a simulation of rock sample failure based on the widely accepted Hoek-Brown failure criterion. Users can manipulate a comprehensive set of input parameters, including the mechanical properties of intact rock (Young's Modulus, UCS, Poisson's Ratio) and interconnected rock mass classification indices (RMR, GSI, and Q). The simulation dynamically calculates the rock mass strength under varying confinement conditions (σ₃) and generates a complete stress-strain curve, illustrating the elastic, plastic, and post-peak phases of brittle failure.

Key Aims:

• Conceptual Understanding: To provide an intuitive, visual link between abstract geotechnical parameters and the physical behavior of a rock mass under stress.

• Parameter Sensitivity: To allow users to instantly see how changes in one variable, such as GSI or confinement, directly impact the peak and residual strength, as well as the ductility of the failure.

• Educational Resource: To serve as a practical learning aid for students and a demonstration tool for professionals, clarifying complex concepts without the need for advanced numerical modeling software.

Ground Condition Illustrator: A Learning Tool

This interactive tool is designed to help visualize the basic principles of rock mechanics. It's a simplified model that makes broad assumptions, so it's perfect for learning the core concepts but should not be used for real-world engineering design.

By clicking on the chart, you can adjust the "Induced Stress" and "Rock Mass Strength" to see how these two key factors influence ground stability.

The tool will show you which failure mechanism—like rockbursts, squeezing, or unravelling—is generally associated with those conditions. The visualization on the right provides a simple illustration of what that failure might look like, and detailed explanations appear below the chart to provide more context.

Use this illustrator to build an intuitive understanding of why different ground conditions behave the way they do.

Visualize Probability in Action: An Interactive Dice Simulator

This tool is designed to bridge the gap between theoretical probability and real-world results. By simulating thousands of dice rolls in an instant, you can see how random outcomes gradually align with their expected distributions. Experiment with different types of dice, from standard fair dice to those weighted by complex functions, and watch as the empirical data is plotted against the theoretical model in real-time. This simulator provides a hands-on way to develop an intuitive understanding of key statistical concepts like probability density, cumulative distribution, and goodness-of-fit tests. Start your simulation to see the law of large numbers unfold before your eyes.