http://harmonelectriccorp.com/electrical-job-safety/excavation-and-trenching/ Commercial Electrical Contracting in the Phoenix Area - Uncompromising Quality & Integrity Since 1975 Sun, 09 Jan 2011 04:46:09 +0000 http://wordpress.org/?v=2.9.2 hourly 1 http://harmonelectriccorp.com/electrical-job-safety/excavation-and-trenching/comment-page-1/#comment-334 Steve Gehloff, Coeur d’ Alene Excavating Sat, 08 Jan 2011 21:42:01 +0000 http://harmonelectriccorp.com/?p=350#comment-334 Good summary of safety precautions. The one thing I'd add is that so many accidents are caused by operators cutting corners or rushing. Safety needs to be a priority every time. Good summary of safety precautions. The one thing I’d add is that so many accidents are caused by operators cutting corners or rushing. Safety needs to be a priority every time.

]]> http://harmonelectriccorp.com/electrical-job-safety/excavation-and-trenching/comment-page-1/#comment-316 We-Bore-It Sat, 03 Apr 2010 15:18:53 +0000 http://harmonelectriccorp.com/?p=350#comment-316 Install substantial stop logs or barricades when using mobile equipment on or near an (trenching)excavation, grade away from the excavation, and provide walkways or bridges with standard guardrails for employees or equipment to cross over excavations. If it is necessary to place or operate power shovels, derricks, trucks, materials or other heavy objects on a level above and adjacent to an excavation, the side of the excavation must be sheet-piled, shored, braced or sloped as necessary to resist the additional pressure resulting from such loads. Never excavate below the level of the base of the footing or retaining wall, except in hard rock, unless the wall is underpinned and appropriate precautions are taken to ensure the stability of adjacent walls. Materials used to support excavations should be maintained in good condition. Scaling, benching, barricading, rock bolting, wire meshing or other equally effective means of excavation support must meet accepted engineering requirements for all sides, slopes and faces of excavations. Excavations with conditions such as water, silty materials, loose boulders, erosion, deep frost action or earth fracture planes require that the slope of the earth adjacent to the excavation be lessened. For excavations in which employees may be exposed to unstable ground, qualified personnel using practices that are compatible with standards required by a registered architect, a registered professional engineer or other duly licensed or recognized authority will design support systems such as piling, cribbing, bracing and shoring that meet accepted engineering requirements to contain the walls. Install substantial stop logs or barricades when using mobile equipment on or near an (trenching)excavation, grade away from the excavation, and provide walkways or bridges with standard guardrails for employees or equipment to cross over excavations. If it is necessary to place or operate power shovels, derricks, trucks, materials or other heavy objects on a level above and adjacent to an excavation, the side of the excavation must be sheet-piled, shored, braced or sloped as necessary to resist the additional pressure resulting from such loads. Never excavate below the level of the base of the footing or retaining wall, except in hard rock, unless the wall is underpinned and appropriate precautions are taken to ensure the stability of adjacent walls. Materials used to support excavations should be maintained in good condition. Scaling, benching, barricading, rock bolting, wire meshing or other equally effective means of excavation support must meet accepted engineering requirements for all sides, slopes and faces of excavations. Excavations with conditions such as water, silty materials, loose boulders, erosion, deep frost action or earth fracture planes require that the slope of the earth adjacent to the excavation be lessened. For excavations in which employees may be exposed to unstable ground, qualified personnel using practices that are compatible with standards required by a registered architect, a registered professional engineer or other duly licensed or recognized authority will design support systems such as piling, cribbing, bracing and shoring that meet accepted engineering requirements to contain the walls.

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