1. Introduction

What is MineGeotech?

MineGeotech is a web-based platform for mine geotechnical analysis. It provides fast, engineering-grade tools to support design decisions.

MineGeotech offers three specialised modules:

Who Should Use This Platform?

2. Accessing the Platform

First-Time Login

1. Navigate to the Platform Open your web browser (Chrome, Firefox, Safari, or Edge recommended) and go to the MineGeotech URL: https://www.mine-geotech.com.
2. Sign In Click Sign in button in the top-right corner of the page. Enter your username and password, then click submit to access the platform.
3. Verify Access Once logged in, all modules are available. Your session will remain active until you log out or close your browser.

Logging Out

When you're finished:

• Click the Logout button in the top-right corner
• This clears your session data and secures your account
• Remember to download any results you need before logging out

3. Understanding the Interface

Sidebar Navigation

The left sidebar is your primary navigation tool:

Section	Description
Home	Returns you to the welcome page
Module A	Pillar Spalling Analysis (single- and multiple-case analysis)
Module B	Floor Bearing Capacity (standard and sensitivity analysis )
Module C	Coalburst and Ground Support (single- and multiple-case analysis)
Results	Access calculations (becomes active after running analyses)
User Manuals	Detailed technical documentation for each module

4. Module Overview

Module A Pillar System Design

Purpose

Ensure long-term pillar stability by analysing spalling failure mechanisms considering weak floor and roof strata interactions.

Key Features

• Interactive 3D visualization of stress distributions
• Single pillar analysis with detailed parametric studies
• Processing for multiple pillar scenarios
• Consideration of weak floor/roof failure mechanisms
• Advanced probability analysis using Monte Carlo simulation

Typical Applications

Input Parameters

• Mining depth and geometry
• Pillar dimensions (width, height, length)
• Rock strength properties (UCS, elastic modulus, cohesion, friction angle)
• Floor and roof properties are optional; enter them only if these elements are included in the analysis

Outputs

• Probability of failure
• Factor of safety
• Final pillar dimensions
• Risk categories

---

Module B Floor Bearing Capacity

Purpose

Calculate the ultimate bearing capacity of weak floor strata to prevent floor heave and maintain roadway stability.

Three Analysis Methods

Method	Type	Best For	Computation
Standard Analysis	Deterministic	Preliminary design, quick calculations	Instant
Point Estimate	Probabilistic (4 or 8 point estimate)	Parameter variability consideration	Fast
Monte Carlo	Statistical (10,000+ sims)	Critical designs, risk analysis	Comprehensive

Key Features

• Multi-layer floor system modeling
• Various weak rock types
• CSV data import for various sensitivity analysis
• Statistical distribution analysis

Typical Applications

• Roadway floor stability assessment
• Foundation design for underground equipment
• Floor heave prediction
• Risk-based design decisions

Input Parameters

• Layer properties (thickness, unit weight, room and pillar layout geometry)
• Weak rock mass properties
• Groundwater conditions

Outputs

• Ultimate bearing capacity
• Allowable bearing capacity with safety factors
• Probability distributions (Monte Carlo)
• Statistical summaries

---

Module C Coal Burst & Ground Support

Purpose

Predict ejection velocities during dynamic rock failures (coal bursts) and design effective ground support systems to protect workers and infrastructure.

Advanced Modeling Approach

This module uses a time-based coupled analytical model that considers:

Key Features

• Time-stepping numerical simulation
• Fickian diffusion modeling for gas desorption
• Support system optimisation
• Hazard classification system
• Exclusion zone calculations
• Coupled bolt-mesh-strap analysis

Typical Applications

• Coal burst risk assessment
• Ground support design for burst-prone areas
• Evaluation of existing support systems
• Safety zone establishment
• Incident investigation and prevention

Input Parameters

• Mining depth and geometry
• Coal properties (cleat porosity, particle size)
• Gas content (free and adsorbed)
• Strain energy values (from numerical modeling)
• Seismic event parameters (if applicable)
• Support specifications (bolt capacity, mesh strength, spacing)

Outputs

• Ejection velocity predictions (m/s)
• Kinetic energy released
• Support system performance (bolt elongation, mesh tension)
• Hazard classification (Low/Moderate/High/Severe)
• Safety exclusion distances
• Support design recommendations

5. Getting Started with Calculations

General Workflow

1. Select Your Module Click the appropriate module (A, B, or C) in the home page or sidebar and read the module introduction if unfamiliar.
2. Understand Input Requirements Review parameter definitions, check units (clearly marked in labels), and note typical value ranges. Explanations of the parameters can be found in .
3. Enter Data
   • New users: Click "Example" button to load sample data
   • Experienced users: Enter your site-specific parameters
   • Multiple cases processing: Download CSV template and upload your data
4. Validate Inputs Check for red error messages, ensure all required fields are filled, and verify units are correct.
5. Calculate Click "Calculate" button and wait for processing (typically 1-30 seconds). Results automatically save to your session.
6. Review Results Go to the Results section in the sidebar to examine tables and charts, and compare them with your design criteria. Your inputs are retained on the Inputs page, so you can switch between Inputs and Results to adjust values for parametric studies.
7. Export Results Download as Excel (raw data for further analysis). Save images of specific charts.
8. Iterate if Needed Use "Reset" button to clear inputs, modify parameters and recalculate.

Tips for Success

Data Preparation

• Gather all required parameters before starting
• Use consistent units throughout
• Document data sources for traceability

Using Example Data

• Excellent for learning the interface
• Shows expected value ranges
• Helps understand output formats

CSV Import (Modules A, B and C)

• Always download the template first
• Match column/row headers exactly
• Use consistent decimal separators
• Check file encoding (UTF-8 recommended)

Result Interpretation

• Read the accompanying explanations
• Compare calculated safety factors to industry standards
• Consider uncertainty in input parameters
• Consult user manuals for detailed methodology

6. Support and Resources

User Manuals

Detailed technical documentation is available in the sidebar:

• Module A Manual: Pillar design methodology, equations, validation cases
• Module B Manual: Bearing capacity theories, calculation procedures, examples
• Module C Manual: Coal burst mechanics, model assumptions, design guidelines

Technical Support

For technical questions or issues, contact:

Academic References

This platform is based on published research:

Training Recommendations

For New Users:

1. Use example data for first calculation
2. Read user manual for chosen module
3. Progress to more advanced modules

For Experienced Users:

• Review module-specific user manuals for calculation methodology
• Validate against hand calculations or other software
• Contribute feedback for platform improvement

Browser Requirements

JavaScript must be enabled