Trench shield must extend 18" above excavation walls when below grade Standard Number: 1926652 (b) 1926650 1926651 (j) (2) OSHA requirements are set by statute, standards and regulations Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer Secondly, and in all instances where the trench box is the sole source of protection, trench boxes are required, at minimum, to extend to the top of the trench They may be positioned a maximum of 24” above the floor of the trench It’s for this reason, most manufacturers offer extendable legs for their shieldsTrench Box Requirements Prospan Shoring Trenches deeper than 5 feet need to have a protective system in place unless they are made of stable rock Don’t place any excavated soil/material within 2 feet of the trench edge Don’t stand near any vehicle being loaded or unloaded Always wear proper safety equipment Use a checklist to conduct safety inspectionsTrenching Safety Tips and Requirements ConEquip
Originally designed to improve productivity while increasing safety Often needs large machinery to move Steel Trench Shields come in various heights, length and widths depending on your job requirements Aluminum Trench Shields The lighter weight version of trench shields, aluminum shields comes in a wide variety of styles, sizes and lengths OSHA standards allow the use of prefabricated shields or portable trench boxes instead of fixed shoring systems if the shields provide an equivalent or greater level of protection; these shields must resist bulging, heaving, and vibration OSHA standards also require the regular inspection and maintenance of these shields by a trained employeeTrench Safety Best Practices: Plates, Panel Shields, Rails, (It is recommended that the trench shield be 2’ – 4’ longer than the pipe) Figuring out maximum weight of trench shield system Take the working weight of the machine that is going to be used at the job site and divide it by 5 That will give you the maximum weight your machine can handle for a trench shield (including spreaders) Example:Steel Trench Shields Trench Boxes ProTec Equipment
Trench Safety Measures Trenches 5 feet (15 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 Trench shield components are engineered for high strength, robust design, low weight, and ease of handling Modular panels, spreaders, and struts are light enough to be transported by light trucks and can be quickly configured for 2, 3 or 4sidedTrench Shield Solutions: Strengths and AdvantagesTRENCH SHIELD TRENCH SHIELD, STACKED Combined Use Trench boxes are generally used in open areas, but they also may be used in combination with sloping and benching The box should extend at least 18 in (045 m) above the surrounding area if there is sloping toward excavation This can be accomplished by providing a benched area adjacent to the box Earth TRENCHING SHORING GUIDELINES
Trench boxes, often referred to as “Shields“, are designed to withstand the collapse forces of a failing trench wall In addition, the shield must be rated for the type of soil and the depth for which it will be deployed In Trench Shield Unlike shoring, trench shields, also known trench boxes, aren’t meant to prevent a cavein or collapse, but rather protect the worker should one occur Trench shields are great for continuous trenching, like pipe laying A few things to consider about trench shields: Always follow the manufacturer’s warnings and labelsTrenching Safety Tips and Requirements ConEquip Trench shields come in a wide range of sizes, either standard or custombuilt to meet various project requirements and the most demanding trench and excavation applications Lightweight singlewall and heavyduty, doublewall shields work well for the smallest and the largest contractor and municipality job needs On the other hand, steel guide frames are Trench Shields Combined with Sheeting Guide Frame Impresses
ModSeries Aluminum Trench Shields A very versatile shielding system that can be built per your job specs Shields are built with 2ft tall panels in various lengths Each shield can be 2sided, 3 sided or 4sided to improve worker The standard LITE guard trench shields are our most popular unit Standard trench shields come in a light weight single skin model or a double skin extruded panel Meets AS 474412000 and BSEN 1333112 The single skin trench Standard Trench Shields LITE guard 4 Trench Shields are available in a wide range of trench box sizes and strength categories that suit different volume requirements and soil conditionsThey can also be provided in custom trench box sizes Shields Trench Shield Solutions: Strengths and Advantages
4 Trench Shields are available in a wide range of sizes and strength categories that suit different volume requirements and soil conditionsThey can also be provided in custom sizesShields can be easily adjusted to appropriate widths using fixed or adjustable spreaders and struts ESC Trench Shields providea size matrix of close dimensional increments for 4 Trench Shields are available in a wide range of sizes and strength categories that suit different volume requirements and soil conditionsThey can also be provided in custom sizes Shields can be easily adjusted to appropriate widths using fixed or adjustable spreaders and struts ESC Trench Shields provide a size matrix of close dimensional increments for Trench Shield Solutions: Strengths and Advantagesbenching, battering, shoring, and trench shields not just over 15 metres and then bench a metre out and up again and battering and the 'angle of repose' 'zone of influence' and battering impractical being engulfed by a trench collapse of the trench shieldTrenching WorkSafe
Trenching and excavation work presents serious hazards to all workers involved Caveins pose the greatest risk and are more likely than some other excavationrelated incidents to result in worker fatalities One cubic yard of soil can weigh as much as a car Other hazards like: Drowning (water from rain or busted water pipe(s); Electrical shock (unseen buried electrical lines); and; The maximum distance between the bottom of the trench box and the bottom of the trench should be no more than 2 feet A contractor can excavate up to 2 feet under a trench box as long as there’s no indication that the soil is collapsing behind the shield or below it and the shield is rated for the full depthUnderstanding OSHA’s Trench Box Requirements United Rentals Specifically, the trench shield extends 18 inches (045 m) above the vertical part of the walls, but is below the top of the trench Therefore, where the top of the shield is below grade, it must extend a minimum of 18 inches above the vertical part of the wall You ask if this 18 inch requirement applies where that would put the top of the Trench shield must extend 18#34; above excavation walls when
Trench Shield Unlike shoring, trench shields, also known trench boxes, aren’t meant to prevent a cavein or collapse, but rather protect the worker should one occur Trench shields are great for continuous trenching, like pipe laying A few things to consider about trench shields: Always follow the manufacturer’s warnings and labels Trench boxes, often referred to as “Shields“, are designed to withstand the collapse forces of a failing trench wall In addition, the shield must be rated for the type of soil and the depth for which it will be deployed In doing so, the worker is safeguarded from injury Having said this, those entering the trench must do their part to ensure the requirements of the Trench Box Requirements Prospan ShoringThe Pro Series™ line of trench shields (trench boxes) from ProTec Equipment incorporates performance and safety features that provide increased job safety and productivity Pro Series trench shields (trench boxes) are available in 4", 6" and 8" thick sidewalls Each is designed to meet the depth and machine capacity for the intended projectSteel Trench Shields Trench Boxes ProTec Equipment
The employer must comply with the trenching and excavation requirements of 29 CFR 1926651 and 1926652 or comparable OSHAapproved state plan requirements Trench Safety Measures Trenches 5 feet (15 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 Additional requirement for shield systems used in trench excavationsExcavations of earth material to a level not greater than 2 feet (61 m) below the bottom of a shield shall be permitted, but only if the shield is designed to resist the forces calculated for the full depth of the trench, and there are no indications while the trench is open of a possible loss of soil from behind or 1926652 Requirements for protective systems Occupational TRENCH SHIELD TRENCH SHIELD, STACKED Combined Use Trench boxes are generally used in open areas, but they also may be used in combination with sloping and benching The box should extend at least 18 in (045 m) above the surrounding area if there is sloping toward excavation This can be accomplished by providing a benched area adjacent to the box Earth TRENCHING SHORING GUIDELINES
See the requirements in the figure and text below The requirements for excavations when using shielding (lower portion) in combination with sloping in Type A soil less than or equal to 20 feet deep (20' deep maximum) The maximum allowable slope for Type A soil is 1 to 075 (1' rise to 075' run) The requirements for excavations when using Trenching and excavation work presents serious hazards to all workers involved Caveins pose the greatest risk and are more likely than some other excavationrelated incidents to result in worker fatalities One cubic yard of soil can weigh as much as a car Other hazards like: Drowning (water from rain or busted water pipe(s); Electrical shock (unseen buried electrical lines); and; Trenching Excavation
