UNCG Department of Environmental Health and Safety

TRENCHING and EXCAVATION TRAINING

Class Topics:

  • Definitions
  • General Requirements
  • Requirements for Protective Systems
    • Protection of Employees
    • Design
    • Materials and Equipment
    • Installation and Removal of Support
    • Shield Systems
  • Excavation Checklist
  • Excavation Permit
  • Soil Classification
    • Type A Soil
    • Type B Soil
    • Type C Soil
  • Sloping and Benching
    • Maximum Allowable Slope
    • Configurations
      • Excavations in Type A Soil
        • Simple Slope
        • Simple Slope - Short Term
        • Simple Bench
        • Unsupported Vertically Sided Lower Portions
        • Excavations 8 feet to 12 feet with Unsupported Vertically Sided Lower Portions
        • Supported of shielded Vertically Sided Lower Portions
      • Excavations in Type B Soil
        • Simple Slope
        • Benched Excavations
        • Vertically Sided Lower Portions
      • Excavations in Type C Soil
        • Simple Slope
        • Vertically Sided Lower Portions
      • Layered Soil
  • Timber Shoring for Trenches
  • Aluminum as Hydraulic Shoring for Trenches
  • Selection of Protective Systems