The hazards include:
Cave-ins or collapses that can trap workers.Equipment or excavated soil falling on workers (e.g., equipment operated or soil/debris stored too close to the excavation).Falling into the trench or excavation.Flooding or water accumulation.
Which of these is known as the greatest danger associated with excavations quizlet?
Cave-ins pose the greatest danger to all excavation workers.
What are some dangers of excavations quizlet?
The dangers of excavations come from the possibility of cave-ins, in addition to the possibility of the lack of oxygen (asphyxiation), fire, accidental break of underground utility lines (such as gas, electricity), collapse due to moving machinery near the edge of the excavations, inhalation of toxic materials, and
What are the risks of excavation?
The speed of an excavation collapse increases the risk associated with this type of work and the consequences are significant as the falling earth can bury or crush any person in its path. This can result in death by suffocation or internal crush injuries.
What is the most common hazard during an excavation?
Probably the most common hazard at any work site is the threat of cave-in. A cave-in occurs when walls of an excavation collapse. Cave-ins can be deadly. Wall failures often occur suddenly, with little or no time for the worker to react.
What is the greatest danger associated with excavations?
Cave-ins pose the greatest risk in trenching and excavation operations, and are much more likely than other excavation-related accidents to result in worker fatalities. Other potential hazards include falls, falling loads, hazardous atmospheres, and incidents involving mobile equipment.
What are some dangers of excavations OSHA quizlet?
Excavations (OSHA)
Cave-ins are the greatest risk.Asphyxiation due to lack of oxygen.Inhalation of toxic materials.Fire.Moving machinery near the edge of the excavation can cause a collapse.Accidental severing of underground utility lines.
Is Fire considered a hazard with excavations?
5. Fire is not a hazard of excavation work. 6. You should contact power, water, and gas utility companies after digging a trench to let them know you are working near underground utility lines.
How can excavation hazards be prevented?
Avoiding vehicular traffic near the excavations or trenches or ensuring it is kept to a minimum To avoid the risk of workers falling into the excavation or trench, suitable barriers (double guard rails) should be erected to prevent falls.
Where is the typical point of failure in an excavation?
What is the typical point of failure in an excavation? Soil failure is defined as the collapse of part or all of an excavation wall. The most common soil failure is typically described as an unexpected settlement, or cave-in, of an excavation. Soil sliding is the most common factor leading to soil failure.
What is the leading cause of death and injuries related to excavations?
1. Cave-ins. Cave-ins are, by far, the greatest excavation risk. Also known as trench collapse, 168 workers lost their lives in this type of accident from 2011 to 2018, according to the Bureau of Labor Statistics (BLS).
What is greatest hazard associated with cave-ins during trench rescue?
The primary hazard is employee injury from collapse. Other potential hazards include falls, falling loads, hazardous atmospheres, and incidents involving mobile equipment. Follow these basic safety procedures when working on excavation sites: Inspect trenches before each shift.
Which of the following is always a hazard at a trench site?
The primary hazard of trenching and excavation is employee injury or death from collapse or cave-in.
What is the greatest hazard facing a worker while working in a trench?
Trench collapses, or cave-ins, pose the greatest risk to workers’ lives. To prevent cave-ins: SLOPE or bench trench walls.
