Set spoils and equipment at least 2 feet back from the excavation. Use retaining devices, such as a trench box, that will extend above the top of the trench to prevent equipment and spoils from falling back into the excavation.
Which of the following ways to avoid excavation hazards was mentioned in the construction Utah?
Pile soil close to the excavation site. Provide protections if water accumulation is a problem. Construct protective Systems. Provide safe access into and out of the excavation.
What are the hazards of excavation?
Types of Excavation Hazards
- Asphyxiation due to lack of oxygen.
- Inhalation of toxic materials.
- Excavated Soil or Equipment falling on workers.
- Moving machinery near the edge of the excavation can cause a collapse.
- Falling, Slips, Trips.
- The accidental severing of underground utility lines/power lines.
What is the main hazard when working in an excavation?
Every year people are killed or seriously injured by collapses and falling materials while working in excavations. They are at risk from: Excavations collapsing and burying or injuring people working in them; material falling from the sides into any excavation; and.
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 is the greatest danger associated with excavations?
- 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 are the major types of caught in and caught between hazards in construction?
“Caught in-between” hazards kill workers in a variety of ways. These include: cave-ins and other hazards of excavation work; body parts pulled into unguarded machinery; standing within the swing radius of cranes and other construction equipment; caught between equipment & fixed objects.
How can excavation hazards be prevented?
Provide protection by:
- Set spoils and equipment at least 2 feet back from the excavation.
- Use retaining devices, such as a trench box that will extend above the top of the trench to prevent equipment and spoils from falling back into the excavation.
How many types of excavation are there?
According to Type of Material Excavated
A common method of classifying excavation is by type of excavated material: topsoil, earth, rock, muck, and unclassified.
What is the primary concern for excavation?
The main hazards associated with excavation work include: Surface encumbrances. Excavation collapse. Loose rock or soil.
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 is the hierarchy of fall protection?
Definition: Hierarchy of fall protection
In order of best to worst, these solutions are: Hazard Elimination, Passive Fall Protection, Fall Restraint, Fall Arrest, and Administrative Controls.
What precautions must be taken during excavation on a construction site?
How is Excavation Done Safely?
- Inspect trenches daily before work begins. …
- Check weather conditions before work, be mindful of rain and storms.
- Keep heavy equipment away from trench edges.
- Be mindful of the location of utilities underground.
- Always wear proper protective equipment.
- Don’t work beneath raised loads.
What are the major types of excavation hazards in construction?
More excavation-related hazards
- falls into trenches or excavations.
- tripping over equipment, debris and spoil.
- excavated material or other objects falling on workers.
- exposure to underground services or overhead electrical cables.
- unstable adjacent structures.
- mishandled or poorly placed materials.
What are two safety concerns regarding excavation work?
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.