Underground Construction Course

Lesson 1 • Regulatory and Compliance Framework

Outlines occupational safety standards, environmental permits, and inspection requirements for underground work. Establishes the compliance mindset required before any excavation begins.

Lesson 2 • Site Investigation and Data Collection

Teaches borehole logging, geophysical surveys, and laboratory testing for site characterisation. Directly informs excavation planning decisions covered in later chapters.

Lesson 3 • Geology Fundamentals for Excavators

Introduces rock and soil classification, structural geology, and groundwater basics. Provides the geological literacy needed to assess excavation conditions.

Lesson 4 • Industry Overview and Scope

Covers the range of underground excavation applications from mining to civil tunnelling. Connects industry scale to the safety and technical demands addressed throughout the course.

Lesson 1 • Emergency Response Planning

Covers evacuation routes, refuge chambers, communication systems, and rescue coordination. Prepares students to develop and execute site-specific emergency response plans.

Lesson 2 • Underground Hazard Identification

Catalogues physical, chemical, and atmospheric hazards unique to confined underground environments. Provides the hazard vocabulary needed for all subsequent risk control work.

Lesson 3 • Safety Culture and Behavioural Safety

Examines leadership behaviours, safety observation programmes, and incident reporting culture. Links individual behaviour to systemic safety performance outcomes.

Lesson 4 • Risk Assessment Methodologies

Applies qualitative and quantitative risk assessment tools to underground scenarios. Connects hazard identification to structured decision-making for control selection.

Lesson 1 • Rockbolt and Cable Bolt Systems

Covers resin-grouted, mechanically anchored, and cable bolt types, including installation procedures. Connects bolt selection to rock mass class and excavation geometry.

Lesson 2 • Ground Support Monitoring and Inspection

Introduces convergence measurement, extensometers, and visual inspection routines for support performance. Monitoring data feeds back into adaptive support design decisions.

Lesson 3 • Steel Sets and Lattice Girders

Covers selection, spacing, and erection of steel arch sets and lattice girders in poor ground. Addresses integration with shotcrete and rockbolts in composite support systems.

Lesson 4 • Rock Mass Classification Systems

Introduces RMR, Q-system, and GSI classification methods for quantifying rock mass quality. Classification outputs directly drive support design decisions in subsequent sections.

Lesson 1 • Initiation Systems and Timing

Covers electric, non-electric, and electronic detonator systems with delay timing principles. Correct timing sequences reduce vibration and improve fragmentation quality.

Lesson 2 • Blast Pattern Design

Teaches cut hole geometry, burden and spacing calculations, and charge loading for development rounds. Proper design maximises advance per round while controlling overbreak.

Lesson 3 • Drilling Equipment and Techniques

Covers jumbo drill rigs, handheld drills, and rotary percussion methods for underground face drilling. Establishes drilling accuracy as the foundation of blast performance.

Lesson 4 • Post-Blast Procedures and Fume Control

Addresses re-entry protocols, misfire management, blast fume clearance, and face inspection. Ensures personnel safety and excavation quality after every blast round.

Lesson 1 • Mechanical Excavation Equipment Maintenance

Covers planned maintenance schedules, cutterhead interventions, and hydraulic system servicing for TBMs and roadheaders. Maintenance discipline directly determines machine availability and project schedule.

Lesson 2 • TBM Performance and Advance Rate

Covers penetration rate, utilisation, and cutter wear models for predicting TBM performance. Links ground conditions from Chapter 1 to achievable advance rates and cost forecasting.

Lesson 3 • Roadheader and Continuous Miner Operations

Covers boom-type roadheaders and continuous miners for soft to medium rock applications. Addresses cutting head selection, sumping sequences, and production cycle management.

Lesson 4 • Segment Lining and Precast Systems

Teaches precast concrete segment design, erection sequences, and gasket sealing for TBM-driven tunnels. Segment installation is the primary ground support method in mechanised tunnelling.

Lesson 1 • Emergency Ventilation and Smoke Control

Addresses fire smoke management, reversal procedures, and refuge chamber air supply during emergencies. Emergency ventilation planning is a mandatory component of site safety plans.

Lesson 2 • Ventilation Network Design

Applies Hardy-Cross and simulation software methods to design multi-split ventilation networks. Network design integrates airflow requirements from all active headings simultaneously.

Lesson 3 • Fan Types and Selection

Compares axial, centrifugal, and auxiliary fans, including characteristic curves and operating point analysis. Correct fan selection ensures adequate airflow at minimum energy cost.

Lesson 4 • Contaminant Control and Monitoring

Covers diesel particulate matter, blasting fumes, radon, and silica dust monitoring and control strategies. Monitoring data drives ventilation adjustments to maintain safe exposure levels.

Lesson 1 • Shaft and Vertical Transport Systems

Covers skip hoisting, cage systems, and vertical conveyor options for deep shaft muck removal. Vertical transport is the production bottleneck in deep underground operations.

Lesson 2 • Underground Haulage Systems

Compares rail haulage, rubber-tyred trucks, and conveyor belt systems for transporting muck to surface. System selection balances capital cost, flexibility, and production rate requirements.

Lesson 3 • Loading Equipment Selection and Operation

Covers LHD loaders, front-end loaders, and rail-mounted mucking machines for underground loading. Equipment selection depends on tunnel geometry, muck volume, and cycle time targets.

Lesson 4 • Muck Disposal and Waste Management

Addresses surface stockpile design, waste rock characterisation, and acid rock drainage prevention. Responsible disposal planning is required before excavation permits are issued.

Lesson 1 • Cost Estimation and Budget Control

Teaches unit cost estimating, contingency allowances, and earned value management for underground works. Accurate cost control requires integration of production rates from all operational chapters.

Lesson 2 • Commissioning and Handover Procedures

Covers as-built documentation, structural acceptance testing, and operational handover for completed underground works. Proper handover ensures long-term asset performance and regulatory compliance.

Lesson 3 • Underground Project Scheduling

Covers critical path method, resource levelling, and schedule risk analysis for underground projects. Scheduling integrates all preceding operational elements into a coherent execution timeline.

Lesson 4 • Instrumentation and Performance Monitoring

Covers geotechnical instrumentation arrays, real-time data dashboards, and trigger action response plans. Monitoring systems provide the feedback loop for adaptive project management.