What are used to prevent soil movement and cave-ins during the excavation of earth?

What are used to prevent soil movement and cave-ins during the excavation of earth?

Sloping involves cutting back the trench wall at an angle inclined away from the excavation. Shoring requires installing aluminum hydraulic or other types of supports to prevent soil movement and cave-ins.

Is a trench considered a confined space?

Some examples of confined spaces include storage tanks, sewers, manholes, tunnels, ship voids, pipelines, silos, wells, pits and trenches. In the United States, any pit or trench with a depth equal to or greater than 4 feet is classified as a permit-required confined space.

What is considered confined space entry?

What are confined spaces? A confined space also has limited or restricted means for entry or exit and is not designed for continuous occupancy. Confined spaces include, but are not limited to, tanks, vessels, silos, storage bins, hoppers, vaults, pits, manholes, tunnels, equipment housings, ductwork, pipelines, etc.

What is considered entering a confined space?

A worker is considered to have “entered” a confined space when his or her breathing zone crosses the plane of the confined space access. Limited means of entry and exit not only make escape or rescue difficult, but can also affect air quality in the confined space.

Which of the following is required before entering a confined space?

OSHA’s confined space standard 1910.146 states that before an employee enters a permit-required confined space, “the internal atmosphere shall be tested, with a calibrated direct reading instrument, for the following conditions in the order given: (1) oxygen content, (2) flammable gases and vapors and (3) potential …

What is the acceptable oxygen level in a confined space?

19.5 %

What is the required oxygen level in confined space?

23%

What are the risk in confined space?

The hazards associated confined spaces include:

• Toxic Atmosphere. A toxic atmosphere may cause various acute effects, including impairment of judgement, unconsciousness and death.
• Oxygen Deficiency.
• Oxygen Enrichment.
• Flammable or Explosive Atmospheres.
• Flowing Liquid or Free Flowing Solids.
• Excessive Heat.

What are safety strategies?

A safety strategy is a high-level plan that is designed to help workers meet one or more workplace safety goals. They may be developed by individual workplaces, whole companies, or governments.

What makes a successful safety program?

Frequent safety training and discussion Knowledge of proper practices to do their job safely. Awareness of how to eliminate hazards to reduce risk. Specialization when their specific roles require unique preparation.

How can I improve my safety program?

10 Ways To Start – and Improve – Your Safety Program

1. Prioritize. Make safety and health your top priority – and make sure your employees know this, too.
2. Lead. Be sure to practice what you preach by making safety part of your daily conversations and behaviors.
3. Report.
4. Train.
5. Inspect.
6. Survey.
7. Assign.
8. Identify.

How do you go about promoting a strong safety culture?

6 Ways to Promote a Culture of Safety

1. Perform a Baseline Assessment.
2. Appoint a Safety Champion or Lead.
3. Employee Education.
4. Employee Involvement.
5. Utilize EHS Tools and Applications.
6. Continuous Improvement – Sustainability.

What does a good safety culture look like?

A positive safety culture shows compassion to spark positive change and does not blame or reprimand others. At a high-hazard operation with a negative safety culture, workers often feel that supervisors and company managers have little concern for their well-being.