... Soil Classification Before anyone can discuss the protective systems used in trenching, they need to understand what they're protecting against. The largest hazard in trenching operations, but certainly not the only hazard, is the potential for a cave-in. In 1926 Subpart P, the Occupational...

... protective system used by contractors. Trench boxes are not designed to prevent cave-ins, but rather serve to protect workers within the structure should a cave-in occur. The manufacturer should provide the method in which the shield is lowered into the trench, moved and the limits of protection while...

... vibration which can affect the trench. Shielding A shield, also known as a trench box, is a common protective system used by contractors. Trench boxes are not designed to prevent cave-ins, but rather serve to protect workers within the structure should a cave-in occur. The manufacturer should provide...

... trench manual test protective system Session No. 545 EXCAVATION INSPECTIONS: Beware of the running excavation rats Michael W. Hayslip, Esq., P.E., CSP Prevention measures The Competent Person responsible is for inspecting excavation safety. This includes analyzing the stability of the soil as well...

... should include employee training, proper employee selection for job tasks, the enforcement of the use of fall protection systems and inspection and testing of the fall protection sys- tems in use. Employee training is crucial to ensuring that the fall protection program works. Employees should be trained...