what is an example of a trench protective system

AFSCME | Chapter 4: Protective Systems

A shield, also known as a trench box, is another common protective system used by contractors. Trench boxes are not designed to prevent cave-ins, but rather serve to "shield" workers within the structure should a cave-in occur.

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OSHA FACTSHEET HIPPA/WHISTLE

Two workers are killed every month in trench collapses.The employer must provide a workplace free of recognized hazards that may cause serious injury or death. The employer must comply with the trenching and excavation requirements of 29 CFR 1926.651 and 1926.652 or comparable OSHA-approved state plan requirements.

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OSHA 30 MODULE 13: Struck-By and Caught In Between Hazards ...

Trenches 5 feet or deeper must be protected using any of the following protective systems. In many cases, even trenches that are less than 5 feet deep must be secured. Protective systems are used to ensure that trenches do not collapse onto workers. All trench protective systems must be designed or verified by a competent person and/or an engineer.

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what is an example of a trench protective systems

Examples to Illustrate the Use of Tables C-1.1 through C-1.3. appendix must be used when design of timber shoring protective systems is to be performed ...

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Construction Safety Trenching and Excavation Safety ...

Protective Systems 4.2.12 To prevent o r protect from cave-ins, utilize one of the following: shoring, sloping or benching, trench boxes, or some other equivalent means.

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Trench Safety Systems - New Braunfels Utilities

C. Maintenance and removal of the trench safety systems as determined by Contractor's Trench Safety Engineer and/or Contractor's Competent Person(s).

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TRENCH SAFETY TRAINING - OSHAcampus.com

TRENCH SAFETY TRAINING What is wrong with this picture? 3 ... For which trench depth does a protective system need to be considered? a. Greater than 4 ft b.

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TRENCHING AND EXCAVATION SAFETY

employees, died when the trench in which they ... moisture content, for example, ... protective system unless: 1) ...

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Geotechnical Manual: Excavation Support

An excavation is any human-made cut, cavity, trench, or depression in an earth surface formed by earth removal. A protection system for an excavation includes support systems, sloping and benching systems, shield systems, and other systems that provide protection.

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U.S. Department of Labor - Home | NRCS

Hard Compact Soil and Unstable Soil The new soil classification system in revised Subpart P uses different terms for these soil types. OVERVIEW: SOIL MECHANICS. A number of stresses and deformations can occur in an open cut or trench. For example, increases or decreases in moisture content can adversely affect the stability of a trench or excavation.

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Trenching and Shoring Safety Competent Person

Trenching and Shoring Safety -Competent Person ... Safe Distance from Trenches ..... 30 Figure 6 Examples of ... excavation or trench. PROTECTIVE SYSTEM refers to a ...

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Construction Safety Trenching and Excavation Safety ...

Construction Safety Consensus Guidelines ... 4.2.14 Protective systems for excavations of 20 feet or greater in depth must be ... Trenching and Excavation Safety.

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Trenching and Excavation Policy » Environmental Health ...

Each department performing trenching and excavation activities must appoint a competent ... trench protection systems, ... If the soil sample does not break ...

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Trench warfare | Define Trench warfare at Dictionary.com

Trench warfare definition, combat in which each side occupies a system of protective trenches. See more.

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Manufacturer's Tabulated Data: What to Look for and …

Manufacturer's Tabulated Data: What to Look ... engineer and used to design and construct a protective system. ... as National Trench Safety's ...

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what is an example of a trench protective systems

Examples to Illustrate the Use of Tables C-1.1 through C-1.3. appendix must be used when design of timber shoring protective systems is to be performed ...

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Construction Safety Exam 1 Flashcards | Quizlet

Start studying Construction Safety Exam 1 ... a protective system and a set of ... means of access/egress in an excavation must be placed in trenches that are ...

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TRENCHING AND SHORING PLAN - Towson University

Protective System: a method of protecting workers from cave-ins, from material that could fall or roll from an excavation face into an excavation, or from the collapse of adjacent structures. Protective systems include support systems, sloping and benching systems, shield systems and other systems that provide the necessary protection.

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Construction Safety Exam 1 Flashcards | Quizlet

Start studying Construction Safety Exam 1 ... a protective system and a set of ... means of access/egress in an excavation must be placed in trenches that are ...

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what is an example of a trench protective systems

what is an example of a trench protective systems. ... This worker is in a trench with no protective system, that is not sloped or benched and has no means of egress.

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Five Most Prevalent Myths About OSHA's Excavation Standard

Many times I have heard people say that OSHA's excavation standard only requires employers to utilize some sort of protective system (trench box, shoring, sloping or benching . . .) whenever a worker is going to enter an excavation five feet or deeper (unless made in stable rock).

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Guide to Trench Excavations (Shoring Support and …

GUIDE TO TRENCH EXCAVATIONS (SHORING SUPPORT AND DRAINAGE MEASURES) ... GUIDE TO TRENCH ... should bear in mind that the trench support system and associated ...

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Weekly Safety Talks: Excavation & Trenching

Protective Systems • Benching/Sloping – Sloping is one way of keeping an excavation wall / trench from collapsing. The angle of slope depends on the soil conditions and depth of trench. – Type A soils: Cut the walls back at an angle of 3/4-to-1 from the bottom of the trench. – Type B soils: Same 1-to-1 slope angle from the bottom of the trench.

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HAZARD ALERT - University of Kentucky

require that the protective system be designed by a ... HAZARD ALERT Kentucky FAE Program ... foot-deep trench, ...

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OSHA 30 MODULE 13: Struck-By and Caught In Between Hazards ...

Trenches 5 feet or deeper must be protected using any of the following protective systems. In many cases, even trenches that are less than 5 feet deep must be secured. Protective systems are used to ensure that trenches do not collapse onto workers. All trench protective systems must be designed or verified by a competent person and/or an engineer.

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