1.2 Scope 2. Common Hazards and Recommended Site Safety Practices 2.1 Physical Hazards in Excavation 2.1.1 Engulfment due to Cave-ins/Slope Failure 2.1.2 Struck by Falling Object 2.1.3 Soil Erosion 2.1.4 Fall into Excavation/Slip, Trip and Fall
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EXCAVATING, TRENCHING, DEWATERING AND BACKFILLING FOR UTILITY WORK PART 1 GENERAL 1.1 SUMMARY A. Furnish all labor, equipment, supplies and materials, and perform all operations in connection with the following: Clearing, grubbing, and preparation of the site; removal and disposal of all debris;
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(a) a shaft, cofferdam, caisson or trench with an excavated depth of greater than 1.5 metres, or (b) a tunnel . can be considered as a 'high risk construction work' for which preparation of a written Safe Work Method Statement (SWMS) is encouraged. 1.2 Who has safety and health duties in relation to excavation work?
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Proper access for the excavation or trench must be provided. If ladders are used they must be placed every 15 m (50 feet and must extend 1m (3 feet) above the excavation or trench. Spoil piles must be placed; 60 cm (2 feet) back from the edge of a trench, 1.2 m (4 feet) back from the edge of an excavation.
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1.18 PIPE TRENCH EXCAVATION. No more trench shall be opened in advance of pipe laying than is necessary to expedite the work. Trench excavation shall be open cut from the surface except where boring is required. 1.18.1 Alignment and Grade. The alignment and grade or elevation of each pipeline shall be fixed and
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Final Surface Preparation Section 2000-Earthwork or detached boulders 1-1/2 cubic yards or greater in volume. his option, substitute tunnelling for open trench excavation. Payment for optional tunnelling shall be at the unit price for the trench, backfill, and surface restoration of the depth and type for which the
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31 23 33 - 7 Trench Excavation and Backfill backfill shall be piled in an orderly manner at a sufficient distance from the edge of the trench to avoid overloading and to prevent sliding into the trench. The Contractor shall do such grading or work as is necessary to prevent surface water from entering the excavation.
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Before a worker enters any excavation over 1.2 m (4 ft) in depth or, while in the excavation, a worker preparation form under the communication section prior to the commencement of the work. project includes a trench more than 1.2 m (4 …
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of a trench (measured at the bottom) is not greater than 15 feet (4.6 m). The Dangers of Trenching and Excavation Operations Trenching and excavation work presents serious hazards to all workers involved. • Cave-ins pose the greatest risk and are more likely than some other excavation-related incidents to result in worker fatalities.
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followed in excavation, including trenching, to ensure, as far as is practicable, a safe working environment for those involved. 1.2 Scope This code provides information to assist with the planning, preparation and conduct of work practices, including the installation or provision of protective systems to protect employees from
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701.6.3 If the soil conditions within the trench area require support, the CONTRACTOR may elect to use tight sheeting, skeleton sheeting, stay bracing, trench jacks, or movable trench shield to support the trench during pipe laying operations, such as: bedding preparation, pipe laying, backfilling of haunches and initial zone.
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Trench Excavation and Backfill..Section 2300 Subgrade Preparation..Section 2600 1.2 Quality Assurance A. Reference Test Standards and Specifications ASTM D698, Test Methods for Moisture Density of Soils and
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trench with adequate clearance between the pipe and sidewalls of the trench. Undercutting the trench sidewall to obtain clearance will not be permitted. If the contractor prefers to undercut the bottom of the trench and bring to grade with 1/2-inch (1/2") crushed rock, he may do so, provided the depth of undercut and backfill with crushed
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31 23 33 - 7 Trench Excavation and Backfill backfill shall be piled in an orderly manner at a sufficient distance from the edge of the trench to avoid overloading and to prevent sliding into the trench. The Contractor shall do such grading or work as is necessary to prevent surface water from entering the excavation.
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1.2 RELATED SECTIONS A. Section 02221 – Excavating and Stockpiling. B. Section 02222 – Engineered Fill, Drainage Layer, and Anchor Trench Backfill. PART 2 PRODUCTS Not used. PART 3 EXECUTION 3.1 PREPERATION A. Verify that any existing plant …
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CITY OF SURREY Excavation Safe Work Practices And Site
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Apr 13, 2020 · We are Linyi Huaya Machinery Co., Ltd. We are the earliest manufacturer of mini wheel loader in China, we started produce wheel loader from 2005, brand is CAISE and CAISEREX. Main products are CS906, CS908, CS910, CS910J, CS910J PRO, CS915, CS917 PRO. CS920.
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3.2 PREPARATION A. Employ a Trench Safety Plan as specified in Section 01570 – Trench Safety Systems. Preparation prior to excavation. G. Strip and stockpile topsoil under the provisions of Section 02200 – Site Preparation. Plus or minus 1/2 inch in cross section, or in 16 foot length.
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of a trench (measured at the bottom) is not greater than 15 feet (4.6 m). The Dangers of Trenching and Excavation Operations Trenching and excavation work presents serious hazards to all workers involved. • Cave-ins pose the greatest risk and are more likely than some other excavation-related incidents to result in worker fatalities.
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