TRENCHING and EXCAVATION TRAINING

  • 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

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