UNDERGROUND EXCAVATION & SURFACE DRILLING

Introduction

This course describes the excavation methods being adopted for surface excavation procedures and underground construction by the use of drilling equipment and techniques.

After attending the course, the candidate will be able to apply the techniques in the field as

  • Drilling Parameters
  • Drilling Patterns
  • Initiating Patterns
  • Underground Drilling Equipment
  • Geological Considerations
  • Tunnel Face Drilling Pattern Design

what you will learn

Bench Height

  • Production Required
  • Type of Deposit
  • Thickness
  • Geology
  • Quality
  • Equipment

Drilling Parameters

  • Hole Diameter
  • Burden
  • Spacing
  • Sub grade drilling
  • Drilling Pattern

Drilling Patterns

  • Square Pattern
  • Staggered Pattern
  • Rectangular Pattern

Initiating Patterns

  • Parallel
  • Diagonal
  • Through OR V- Pattern
  • Extended Through OR Extended V-Pattern

Other Parameters

  • Powder Factor
  • Stemming and Decking
  • Delay Timing
  • Decoupling Ratio
  • Base Charge
  • Column Charge

Underground Drilling Equipments

  • Jumbo Drilling Machine
  • Jumbo 2D
  • Jumbo XL 3D
  • Tunnel Boring Machine

Site Inspection

Geological Considerations

Planning

Drilling Pattern Design

  • Machine Workability
  • Design Considerations
  • Geological Influence
  • Look-out Angle

Your Future Starts Here.

OUR LOCATION

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