OSHA Trench Box Rules and Fines For Violations

Soil Pressure and the Angle of Internal Friction

The angle of internal friction of soil is something that can be overlooked, but one that can be easily explained is rather simple. We encounter it when we see a […]

Surcharge Loads

SURCHARGE LOADS: Surcharge loads will also impact lateral loads.They act in reverse to lateral earth pressure. Most of the surcharge is seen towards the top of the excavation while gradually […]

OSHA Trench Box Rules and Fines For Violations

Soil Composition and Influence

Soil – aka “dirt”is a particulate material. This means it is composed of an assortment of individual particles which can be sorted into 4 basic groups: sand, silt, clay and […]

OSHA Trench Box Rules Roll Off Protection (The “18 Inch Rule”)

    The Myth: One very common misconception among contractors is that any protective system is required to extend at least 18 inches above the top of the trench. Although […]

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