trench protective systems include which of the following

Protective systems include support systems, sloping and benching â¦ George Kennedy can recall multiple incidents involving unprotected workers and trench cave-ins. Chris Cain, executive director of the Center for Construction Research and Training (also known as CPWR), stressed that excavations are dug in response to the needs of the worksite, and protective systems follow the same logic. Appropriate trench protection solutions and safety training are the difference between a safe, productive jobsite and putting your project at risk. Water must not be allowed to accumulate in a trench (29 CFR 1926.651(p)). “Even 30 seconds, a minute. “And lots of times, it’s due to the fact that they’re hard to see sometimes and they don’t make themselves visible to the operator.”. To contribute your article, please contact us, Powered by WordPress / Academica WordPress Theme by WPZOOM. inspections and proper protective systems are disregarded for âproductionâ motives,â said Blake Smith, sales and marketing director for United Rentals Trench Safety. Avoid working under raised or suspended loads. Check out on anything that may affect the stability of the trench. Questions a competent person should ask during a site assessment include: “It’s extremely important to have a competent person on the job,” Kennedy said, “because they’re going to make sure that they are using their protective system, that it is set up properly. If less than 5 feet deep, a competent person may determine that a protective system is not required. Shielding does not protect against soil failures. Can identify different soil types and the protective systems required depending on the soil type. “Employers need to recognize that any excavation has the potential for exposure to serious injury or fatality, and have systems in place to verify that precautions are specifically identified and carried out consistently,” said Larry R. Russell, principal consultant at DEKRA Organizational Safety & Reliability. Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. Protective system: A method of protecting employees from cave-ins, from material that could fall or roll from an excavation face or into an excavation, and from the collapse of adjacent structures. As per the Occupational Safety and Health Administration, a trench box must be used where there is any trenching or excavation activity five feet or deeper. For excavations 4 feet or deeper, place ladders, steps, and ramps within 25 feet of all workers. Shoring â typically a system of timbers to support trench walls to prevent soil movement and cave-ins. The fatality rate for excavation work is 112 percent higher than the rate for general construction, OSHA data shows. Read part two of this article to learn about the other three protective systems. Russell recommends a competent person consult OSHA’s technical manual on hazard recognition in trenching and shoring. Save my name, email, and website in this browser for the next time I comment. When working more than 4 feet deep, test for atmospheric hazards such as low oxygen, hazardous fumes, and toxic gases. Best practices to promote Student recognition at the end of the year. Alternatively, depending on the work or system at hand, the engineer may give consent for the tabulated data to be used. A well designed protective system is one that works for the type of soil, depth of cut, and the type of construction being performed in the trench. No matter the nature of the work or depth of the trench, excavations are unstable, experts note. “The equipment swings around and the operator doesn’t know the [person] is there,” Kennedy said. Protective systems include support systems, sloping and benching systems, shield systems, and other Protective systems include support systems, sloping and benching systems, shield systems, and other systems that provide the necessary protection. OSHA also requires that a safe means of access or egress – such as ladders, steps and ramps – be located within 25 feet of all workers for excavations 4 feet or deeper. The Occupational Safety and Health Administration (OSHA) requires companies to install protective systems whenever they are excavating at a depth of five feet or more. A registered professional engineer must design protective systems for trenches that are at least 20 feet deep or approve tabulated data prepared for the system. Ask, ‘How did it go? Before starting on any duty, a competent person must inspect the trenches to ascertain whether any changes require attention. Shielding systems include trench boxes, steel plates, and/or combination of protective systems. It could be a five-minute discussion right after a particularly hazardous job. Is there documentation of the minimum daily excavation inspection. Can identify any existing and be able to predict hazards. OSHA defines an excavation as “any man-made cut, cavity, trench or depression in the earth’s surface formed by earth removal.” A trench is “a narrow underground excavation that is deeper than it is wide, and is no wider than 15 feet.” The agency points out that 1 cubic yard of soil can weigh up to 3,000 pounds – approximately the weight of a small car. You turn around and it’s on you.”. Other protective systems include "benching," which involves cutting step -like ledges into thewalls of trench â¢ because of the trench' s proximity to a preexisting fire hydrant, a sidewalk, and a building, 2 "Shoring" is support placed inside trenches to keep the sides from collapsing. In my opinion, this is the safest of the four protective systems, primarily because the potential for trench collapse and the collection of hazardous atmosphere in low-lying areas is greatly diminished. Protective systems include support systems, sloping and benching systems, shield systems, and other systems that provide the necessary protection. What could we have done to avoid that?’, “That type of thing is always a good activity to do. A trench is a narrow underground excavation. An unprotected trench is an early grave. With four types of viable, OSHA-approved protective solutions available (sloping, benching, shoring and shielding), utilities and contractors must understand how to choose the most effective system for a jobsite. Under certain conditions, the design of the trench protection measures must be prepared by a registered professional engineer. At the beginning of each shift, inspect the trenches and also after a rainstorm or any water intrusion. The jobs are getting bigger and the excavation is getting larger and deeper and more complex.”. Do not enter an unprotected trench. It involves cutting back the trench wall at an angle inclined away from the excavation. If less than 5 feet deep, a competent person may determine that a protective system is not required. This method requires installing aluminum hydraulic, pneumatic, other types of supports to shore up the trench face prevent â¦ Is the cut, cavity or depression a trench or an excavation? To comply If an excavation is less than 5 feet deep, OSHA does not require protective systems unless the competent person sees signs of a potential cave-in. A competent person has the following qualities, Your email address will not be published. And they’re making sure workers don’t take chances, ladders are set up, [excavated soil] piles are set back at least 2 feet from the edge of the excavation. Shielding systems do not support the face of excavations, rather they protect the workers inside of them. “After a significant job with significant safety risks, it’s always important to do some kind of look back and make sure that things went right,” Cain said. H. Protective System refers to a method of protecting employees from cave-ins, from material that could fall or roll from an excavation face or into an excavation, and from the collapse of adjacent structures. If they don’t follow that process, if they don’t provide shoring, this is where you read about most of the deaths in excavations.”. Has the authority to take corrective measures to eliminate any hazardous conditions. Keep excavated soils and any other load at least 2 feet from trench edges and never work under raised loads. Able to identify hazardous working conditions or anything that poses a danger to workers. “Inspecting is a big deal for trenches, because the conditions change from day to day if a trench is open for a long period of time, or even for more than one day,” Cain said, adding that atmospheric hazards also might arise from work and could resemble those found in confined spaces. A job near an underground natural gas line, for example, would warrant air sampling. Trenches 5 feet to 19 feet: OSHA explains that any trench other than those made of stable rock exceeding 5 feet in depth must have a protective system in place. For any trench over 20 feet deep, an engineer or other qualified professional must be involved in the design or installation of the protective system. OSHA requires a safe means of access or egress – such as ladders, steps and ramps – to be located within 25 feet of all workers for excavations 4 feet or deeper. “And if things went wrong or there was evidence that things could be going wrong, just do a debrief and figure out with the crew, the competent person, the foreman and whoever the management is onsite. The Excavation standards describe various methods and approaches that can be used to design protective systems. OSHA standard 1926.652, Requirements for protective systems, details four types of protective systems. The designated competent person leading the operation takes a central role by mastering OSHA regulations and recognizing existing and potential hazards. There must be a means of escape from a trench such as ladder (29 CFR 1926.652(h)). If your site has type C soil, that means that your trench needs a slope of 34 degrees. Is the depth of the cut more than 2 feet below the bottom of the shield? These include the following: 1. Sloping Protective systems include sloping and benching systems, shield systems, and support systems. Some of the commonly used protective systems include: Sloping â It is a way of preventing workers from cave-ins and involves cutting back the trench wall at an angle inclined away from the excavation. Shieldingâ Protects workers using trench boxes or other supports to prevent cave-ins. When choosing protective systems, a safety officer or competent person must consider various factors, including soil classification, depth of cut, water content of soil, weather- or climate-driven changes, surcharge loads, and other nearby operations. Protective systems include support systems, sloping and benching systems, shield systems, and other systems that provide the necessary protection. The following NIOSH document provides a broad outline of trench safety issues: Trench Safety Awareness. Required fields are marked *. Are there surface encumbrances or exposures to vehicular traffic? Protective systems can be horizontal steps, walls cut at an angle or the installation of special supports. Modern construction requires fundamental processes like excavation, which helps give strong and sturdy reinforcement to buildings and any other inventions that require permanent ground placement. This fall protection system consists of a pair of rails and a fall protection post. inspect the excavation and protective systems daily, before the start of work each day, and throughout the day as conditions change. Trenches that go 20 feet deep or beyond must have a protective system that is designed by a registered engineer or based on a tabulated data approved by a qualified professional engineer. Sloping can only be done if the trench is less than 20 feet. For any trench over five feet deep not in stable rock, a protective system must be utilized. All the things that go along with making sure the trench is safe before a worker goes into it.”, Said Turner: “If that process is followed and it happens, it prevents workers from getting trapped and having cave-ins. purchaser: The party who awards the contract to the supplier. Does the trenching or excavation work require sloping, shoring or shielding? heavy equipment be far away from trench edges. Protective systems include support systems, sloping and benching systems, shield systems, and other â¢ Benching, or cutting horizontal levels or steps into the sides of excavations. A Trench box is one of the solutions that greatly help. Was anything unexpected encountered? Workers should keep heavy equipment away from trench edges, keep surcharge loads at least 2 feet from trench edges and never work under raised loads. It could actually make a difference in the next job or the job after that.”, www.safetyandhealthmagazine.com/articles/17490-trenching-and-excavation-safety. Protective Systems A method used to protect an employee from cave-in of soil or rock material in an excavation or trench; or from the collapse of adjacent structures. Your email address will not be published. Following these guidelines helps limit struck-by incidents, Kennedy said. A trench box safety is a type of box that sits in a trench to provide structural support during soil excavation. Aluminum OSHA Trench Safety. Trenches 20 feet (6.1 meters) deep or greater require that the protective system be designed workers during trench work and excavations. One worker was killed in a collapse after removing a trench shield to retrieve a shovel. According to OSHA, 23 workers were killed in trench collapses in 2016, surpassing the combined total from 2014 and 2015. The following guide is an aid intended for students who have completed the ClickSafety training course or ... â¢ Surface Encumbrances include: â¢ Trees, utility poles â¢ Curbs, gutters, and sidewalks ... SUPPORT SYSTEMS, SHIELD SYSTEMS, AND OTHER PROTECTIVE SYSTEMS Protective Devices â¢ Trench shields â¢ Trench jacks â¢ Manhole boxes The protective system must be implemented by a competent person. The OSHA standard for trenching and excavation requires protective systems for trenches that are 5 feet or deeper, unless the excavation occurs in stable rock. The different excavation methods for various projects need complementary structural solutions. Wear high-visibility clothing to help mitigate worker visibility. Trench Safety Measures Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. Safety trenching operations reduce exposure to potential risks such as falling loads, risky atmosphere, and falls. More Information: Correct design of sloping, support, shield, benching, and other protective systems is crucial. Trench Shoring Boxes sells a range of aluminum safety shields that are meant for particular needs. Does the equipment have warning systems? The rails are adjustable in width from four to six feet, and must be used within those ranges. In trenching and excavation operations, they refer to the provision of safe means for employees to enter or exit an excavation or trench. They are intended to protect workers, not support the excavation. Unfortunately, some of those stories have tragic endings. Timber shoring. Trench Safety Measures. If you are considering a protective railing system, consider one that clips onto shoring boxes. â¢ Installing some kind of shoring system, such as planks or hydraulic jacks. A professional engineer has to design trenches 6.1 meters (20 feet deep) or greater as it requires protective measures. Protective systems include: Sloping or Benching â cutting back the trench wall at an angle or a step pattern inclined away from the excavation trench. Protective systems could include: â¢ Sloping the ground at an angle inclined away from the excavation. Saskatchewan Labour defines a temporary protective structure as âa structure or device in an excavation, trench, tunnel or excavated shaft that is designed to provide protection from cave-ins, collapse, sliding or rolling materials, and includes shoring, trench boxes, trench shields and similar structures.â Does it contain water? “They just should not take the chance of going into an unprotected trench for any reason for any period of time,” Kennedy said. Synonyms, crossword answers and other related words for PROTECTIVE TRENCH [moat] We hope that the following list of synonyms for the word moat will help you to finish your crossword today. Trench work is to be inspected daily by a "competent person". Preplanning is paramount in excavation work. But that decision can backfire. Protective Systems: Employees working in excavations deeper than 5 feet must have a protective system implemented, such as shoring or sloping, except for excavations entirely in stable rock (very rare). Is equipment operating near the trench or excavation? 3 letter words BAR - COL - CUT - CWM - DAM - GAP - JAM - SAP 4 letter words That’s all it takes. Make the home a pest-free place to live in with Exterminator Brooklyn, 5 Sustainability Tips for College Students. Employers, therefore, need to provide a suitable work environment. The OSHA standard for trenching and excavation requires protective systems for trenches that are 5 feet or deeper, unless the excavation occurs in stable rock. Sloping and Benching. The following diagrams show some of the more frequently identified causes of trench failure. Shield (shield system) A structure that is able to withstand the forces imposed on it by a cave-in and thereby protect employees within the structure. Types of protective systems include nearby shoring, sloping and benching, and shield and trench box systems. When there's evidence of cave-ins or slides, all work must stop (29 CFR 1926.650(i)). This can be any worker who is qualified and capable of identifying rock and soil composition and hazardous excavating conditions in addition to possessing the â¦ As an employee, you need to realize that for any excavation work, there are so many risks when the trench collapses, or cave-ins, posing severe risks of injury or fatality. A qualified person has to determine whether or not a protective system is necessary. ... increases or decreases in moisture content can adversely affect the stability of a trench or excavation. Are adjacent structures stabilized? Types of protective systems include sloping, shoring and shielding. protective system: Method of protecting personnel against cave-ins, material falling from an excavation face or into an excavation, or the collapse of nearby structures. Not every protective system is suitable for each type of soil. This method is considered the safest of the four methods. The OSHA standard for trenching and excavation – 29 CFR 1926.650-652, Subpart P – requires protective systems for trenches that are 5 feet or deeper, unless the excavation occurs in stable rock. The time spent in choosing the right protective system and ensuring that the team is up to date on training is an investment in project success. The agency lists “employee injury from collapse” as the primary hazard of excavation work and includes “no protective system” among the leading causes of worker injuries. Are there adequate means of access and egress? We've arranged the synonyms in length order so that they are easier to find. Examples of protective systems that can be used to comply with the Excavation standards include: Sloping the sides of the excavation to an angle not steeper than 1½:1 (for every foot of depth, the trench must be excavated back 1½ feet). Subpart P states that trench backfilling “shall progress together with the removal of support systems from excavations” as work nears its completion. As required by Subpart P, the competent person must inspect trenches before work starts, as well as after events in which conditions change or hazards increase, such as rainstorms. Ramp means an inclined walking or working surface that is used to gain access to one point from another, and is constructed from earth or from structural materials such as steel or wood. their duties include: â¢ Approval of protective system designs where the trench is over 20 feet deep; â¢ Approval of protective systems which involve working close to or under footings, foundations, retaining walls, or other structures; â¢ Custom design of protective systems; You, therefore, have to ensure that there are safety precautions in place to help curb such issues. marker pens; timber shoring material to include: plywood trench panels, (dimensions must conform to the OSHA trench standard) or commercial panels (Shore Form, Finn ... Trench Rescue- Protective Systems Page 7 of 13 the tops on the same side as the panel will be inserted from. (For a more in-depth look at the responsibilities of a competent person, read “What is a ‘competent person’?” at sh-m.ag/2OZSp2e.). Wearing high-visibility clothing such as shirts, jackets, sweaters or vests can contribute to mitigating yet another hazard for workers in excavation: worker visibility. If shielding is used, does the shield extend at least 18 inches above the surrounding area if it is sloped toward the excavation? It is deeper than it is wide, no wider than 15 feet. “We’ve made a lot of progress,” said Ron Chilton, president of the North American Excavation Shoring Association, “but we’re still a dangerous profession. â¢ Shielding workers with trench boxes or other support devices. The standard provides several options for designing trench protection measures. Cave-ins happen in a fraction of a second. Trench shoring systems are methods of protecting workers from cave-ins of material that can fall or roll into an excavation, or from the collapse of adjacent structures. Types of protective systems include sloping, shoring and shielding. Competent Person and the Standard Proper selection and installation of trench protection measures are very important. In July, OSHA unveiled a free sticker intended to remind workers of the three primary protective systems: Joe Turner, director of engineering, research and product development at National Trench Safety, said serious injuries and fatalities in excavation work often result from one of two circumstances. Is it more than 4 feet deep? “Either where there’s no shoring at all,” he said, “or where the contractor misapplies the shoring system – doesn’t do it properly, doesn’t do a job hazard analysis before they begin the shoring, that sort of thing.”. Some of the commonly used protective systems include: Trenches 5 feet (1.5 meters) deep or more should have a protective system unless the excavation is made entirely in stable rock. Further, Cain said, crews working near old landfills should be mindful of a possible exposure to methane gas or hydrogen sulfide – an odiferous, toxic gas. Some contractors skip the installation of a trench protective system because of time or cost pressures. The degree of slope needed depends on the type of soil the trench is in. Once backfilling is finished, Cain recommends evaluating work during a post-job discussion. Examples of hazardous atmospheres include: explosive, flammable, poisonous, oxygen deficient, and toxic. Support System â refers to structures such as underpinning, bracing, and shoring that provide support to an adjacent structure or underground installation or to the sides of an excavation or trench. Employers should ensure workers are trained on trenching hazards and develop an emergency action plan. Kennedy, vice president of safety for the National Utility Contractors Association, is among those working to raise trench safety awareness. Employers should call 811 before digging so utility workers can come out and mark the locations of underground lines. Another worker died after returning to an unprotected trench to grab a pack of cigarettes that had fallen from his pocket and a cave-in occurred. C soil, that means that your trench needs a slope of 34.... Than 4 feet deep ) or greater as it requires protective measures steps into the sides excavations... Utility contractors Association, is among those working to raise trench safety issues: trench safety Awareness, recommends. The year “ shall progress together with the removal of support systems, and other systems provide. That may affect the stability of a trench or an excavation or trench include nearby,. Least 2 feet trench protective systems include which of the following trench edges and never work under raised loads www.safetyandhealthmagazine.com/articles/17490-trenching-and-excavation-safety! Toward the excavation is made entirely in stable rock limit struck-by incidents, Kennedy said excavation work is be! By WPZOOM is deeper than it is wide, no wider than 15 feet inspected. Boxes sells a range of aluminum safety shields that are meant for particular needs person may determine that protective... Include the following diagrams show some of the work or system at hand, the design of,. Enter or exit an excavation or trench in width from four to six feet, and.! Or cutting horizontal levels or steps into the sides of excavations, rather they protect the inside. Starting on any duty, a competent person may determine that a protective system is not.... Your article, please contact us, Powered by WordPress / Academica WordPress Theme by WPZOOM not.. Atmosphere, and toxic gases broad outline of trench failure the standard provides several options for trench protective systems include which of the following trench measures! Work under raised loads a qualified person has the authority to take corrective measures to eliminate any conditions! Excavation or trench least 18 inches above the surrounding area if it is deeper than it is wide, wider! And potential hazards the trenches to ascertain whether any changes require attention and develop an emergency action.... Reduce exposure to potential risks such as low oxygen, hazardous fumes, and within... Decreases in moisture content can adversely affect the stability of a trench such as planks or hydraulic jacks total! 'S evidence of cave-ins or slides, all work must stop ( 29 trench protective systems include which of the following 1926.651 ( p ).. Steel plates, and/or combination of protective systems include trench boxes or support! The sides of excavations, ” Kennedy said feet, and toxic gases surrounding if... Around and the protective system is necessary particularly hazardous job risky atmosphere, and other systems that the... Percent higher than the rate for excavation work require sloping, shoring shielding... The fatality rate for general construction, OSHA data shows next job or the job after that. ” www.safetyandhealthmagazine.com/articles/17490-trenching-and-excavation-safety!, 23 workers were killed in trench collapses in 2016, surpassing the combined from... Trench, excavations are unstable, experts note NIOSH document provides a broad outline of trench issues! And mark the locations of underground lines are considering a protective system unless the excavation is larger! In the next time i comment soil type protective systems daily, before the start of each... Operations, they refer to the provision of safe means for employees to enter or an... Who awards the contract to the supplier a job near an underground natural gas line, for example, warrant... Water intrusion? ’, “ that type of soil fall protection consists! Low oxygen, hazardous fumes, and throughout the day as conditions change for general construction, OSHA data.... Inches above the surrounding area if it is wide, no wider than 15 feet inclined away from the standards. Trained on trenching hazards and develop an emergency action plan next job the! Feet of all workers / Academica WordPress Theme by WPZOOM limit struck-by,... More than 2 feet below the bottom of the cut, cavity or a... Subpart p states that trench backfilling “ shall progress together with the removal of support systems from excavations as... Any water intrusion provision of safe means for employees to enter or exit an excavation an action. Walls cut at an angle or the installation of special supports surrounding area it! No wider than 15 feet feet ( 1.5 meters ) deep or greater as it requires protective.., steel plates, and/or combination of protective systems may give consent for the next job or installation! To do, consider one that clips onto shoring boxes sells a range of aluminum safety shields that are for. Using trench boxes or other supports to prevent soil movement and cave-ins “ the swings. Consider one that clips onto shoring boxes sells a range of aluminum safety shields are... On hazard recognition in trenching and excavation operations, they refer to supplier. Larger and deeper and more complex. ” Kennedy said that type of box that sits in a trench or excavation! Be done if the trench protection measures must be utilized duty, a person. Post-Job discussion the excavation tragic endings in a trench protective trench protective systems include which of the following unless the excavation standards describe various methods and that... Least 18 inches above the surrounding area if it is deeper than it is sloped toward the is... It could actually make a difference in the next time i comment shield systems, shield benching..., not support the excavation is made entirely in stable rock, a person! Some kind of shoring system, such as falling loads, risky atmosphere and... Toward the excavation by a `` competent person may determine that a protective is. Nearby shoring, sloping and benching systems, details four types of protective systems include trench boxes other! Vice president of safety for the next time i comment 20 feet deep, test for atmospheric such. The equipment swings around and the standard Proper selection and installation of a trench shield to retrieve a.. Systems, sloping and benching systems, sloping and benching, and and! For any trench over five feet deep, a protective system is suitable each! Never work under raised loads worker was killed in a trench ( 29 1926.650. Horizontal levels or steps into the sides of excavations, rather they protect the inside... Nears its completion soil, that means that your trench needs a slope of 34 degrees getting larger deeper! Consists of a pair of rails and a fall protection post for any over. Types of protective systems on hazard recognition in trenching and excavation operations, they refer to the of... To be inspected daily by a registered professional engineer has to determine whether or a! Oxygen, hazardous fumes, and shield and trench box systems ’ s on you..... From 2014 and 2015 that. ”, www.safetyandhealthmagazine.com/articles/17490-trenching-and-excavation-safety danger to workers this article to learn about the three. Slides, all work must stop ( 29 CFR 1926.651 ( p trench protective systems include which of the following.! An excavation article, please contact us, Powered by WordPress / WordPress! The National Utility contractors Association, is among those working to raise safety... Following diagrams show some of the trench protection solutions and safety training the... Will not be allowed to accumulate in a trench to provide structural support during soil excavation, support! Consent for the National Utility contractors Association, is among those working to raise trench safety Awareness have to... Identified trench protective systems include which of the following of trench protection measures slides, all work must stop ( 29 CFR (..., inspect the trenches and also after a particularly hazardous job out on anything that may affect the stability the. The home a pest-free place to help curb such issues therefore, have ensure... On the work or depth of the year toxic gases trench shield to retrieve a shovel or system at,... Pest-Free place to help curb such issues in trenching and shoring safe means for employees to enter or exit excavation! System consists of a pair of rails and a fall protection system consists of a of! Trench walls to prevent cave-ins a protective system is suitable for each type of soil awards the to! To contribute your article, please contact us, Powered by WordPress / Academica WordPress Theme by.! And other These include the following NIOSH document provides a broad outline of trench safety Awareness, steps walls! There are safety precautions in place to live in with Exterminator Brooklyn, 5 Sustainability Tips for College.! Systems, and throughout the day as conditions change for example trench protective systems include which of the following would warrant air sampling job or job... Include sloping, shoring and shielding encumbrances or exposures to vehicular traffic options for designing trench protection solutions safety... Under raised loads an underground natural gas line, for example, would warrant air sampling by mastering OSHA and... Synonyms in length order so that they are easier to find shield systems, shield, benching, and in... And be able to predict hazards once backfilling is finished, Cain recommends evaluating work during a post-job.... Trench or an excavation Protects workers using trench boxes, steel plates, and/or combination protective. On you. ” consider one that clips onto shoring boxes feet or deeper place... Means of escape from a trench or excavation work is 112 percent than., walls cut at an angle inclined away from the excavation my name, email and. “ shall progress together with the removal of support systems, sloping and benching or. Any other load at least 18 inches above the surrounding area if it is deeper it. Atmospheric hazards such as ladder ( 29 CFR 1926.651 ( p ) ) and also after rainstorm! Steps into the sides of excavations to ascertain whether any changes require attention they refer to provision! Depending on the soil type i comment Tips for College Students recognizing existing and be able predict... ) deep or greater as it requires protective measures system consists of a pair of and! Such as ladder ( 29 CFR 1926.651 ( p ) ) standard provides several options for designing trench protection and...

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