April 24, 2014
The basic methods for protection from cave-ins are sloping, benching, shoring, and shielding. Oregon OSHA's excavation standard requires that a registered professional engineer design the protective systems for excavations more than 20 feet deep; of course, most shoring and shielding systems manufactured today are designed by registered professional engineers.
The important point to remember is a registered professional engineer must design sloping and benching systems for excavations more than 20 feet deep. The design must be in writing and must include:
At least one copy of the design must be kept at the jobsite while the slope is being constructed.
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