What are the hazards associated with excavation?
Top 5 excavation safety hazards
- Cave-ins. Trench collapses kill an average of two workers every month, making this a serious threat to worker safety. …
- Falls and falling loads. Workers and work equipment can fall into an excavated area. …
- Hazardous atmospheres. …
- Mobile equipment. …
- Hitting utility lines.
When working in trenches and excavations the most common and dangerous hazard is?
Trenching and excavation work presents serious hazards to all workers involved. Cave-ins pose the greatest risk and are more likely than some other excavation-related incidents to result in worker fatalities. One cubic yard of soil can weigh as much as a car.
What are some of the hazards associated with trenches quizlet?
- The greatest risk in an excavation is a cave-in.
- Employees can be protected through sloping, shielding, and shoring the excavation.
- A competent person is responsible to inspect the excavation.
- Other excavation hazards include water accumulation, oxygen deficiency, toxic fumes, falls, and mobile equipment.
What is the most serious and deadly excavating and trenching hazard?
Trenching and excavation work presents serious hazards to all workers involved. Cave-ins pose the greatest risk and are more likely than some other excavation-related incidents to result in worker fatalities.
What are the safety precautions for excavation?
Avoid underground services and make sure not to undermine nearby structures – use safe digging practice and dig away from them. Check the excavation each day before starting work and after any event that may affect its stability. Provide safe access to get in and out. Prevent collapse – shore, bench, or batter back.
What are the safety precautions in excavation work?
03. Safety Precaution while Excavation Work:
- Prepare firm and broad approach road. …
- The nail should not be lying around, after the completion of layout work.
- Barricade the site to restrict the entry of animal and the unauthorised person on site.
- Ensure that workers are wearing personal protective equipment.
What are the three methods of excavation?
Types of excavation
- 3.1 Cut and fill excavation.
- 3.2 Trench excavation.
- 3.3 Basement excavation.
- 3.4 Road excavation.
- 3.5 Bridge excavation.
- 3.6 Dredging.
- 3.7 Over excavation.
What are 3 main protection methods against cave-ins?
To prevent cave-ins: SLOPE or bench trench walls. SHORE trench walls with supports, or. SHIELD trench walls with trench boxes.
What are the major types of excavation hazards in construction?
The greatest risk in an excavation is a cave-in. Employees can be protected through sloping, shielding, and shoring the excavation. A competent person is responsible to inspect the excavation. Other excavation hazards include water accumulation, oxygen deficiency, toxic fumes, falls, and mobile equipment.
What is the greatest danger associated with excavations?
Explanation: Cave-ins pose the greatest risk and are much more likely than other excavationrelated accidents to result in worker fatalities. Other potential hazards include falls, falling loads, hazardous atmospheres, and incidents involving mobile equipment.
Which of the following is the deadliest excavation hazard?
Cave-ins are a deadly hazard of excavation work.
Is Fire considered a hazard associated with excavations?
If you are not using protective systems or equipment while working in trenches or excavations at your site, you are in danger of suffocating, inhaling toxic materials, fire, drowning, or being crushed by a cave-in.
How deep can you Excavation without shoring?
Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. If less than 5 feet deep, a competent person may determine that a protective system is not required.
What is cave in Hazard?
There are many potential hazards when working in excavations and trenches. 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.
Who is responsible for keeping you safe from Caught in and between hazards?
According to OSHA, requirements employers must do to protect workers from caught-in or -between hazards include, but are not limited to, the following: Provide guards on power tools and other equipment with moving parts.