The 1:1 Rule for Safe Setup Explained
Scott Southerland, of AJ’s Concrete Pumping in Vancouver, BC and creator of the Canadian Concrete Pumper YouTube channel, uses his platform to provide a visual representation of best practices for concrete pump operators. In a recent video, Sutherland explains what the 1:1 rule is in proper outrigger set up from the base edge of an excavation using DICA’s ProStack Slot Lock Cribbing Blocks and SafetyTech Outrigger Pads.
Sutherland explains that when setting up a concrete pump truck near excavation it’s essential to set up at or beyond the minimum set back limit. He uses the example of a 12-foot drop from the edge of the excavation which means that the edge of the outrigger needs to be, at minimum, 12 feet back from the edge of excavation.
Sutherland explains that when setting up a concrete pump truck near excavation it’s important to set up at or beyond the minimum set back limit.
“For every one foot of vertical drop you have, you need to have your outrigger pads that far back from the edge of excavation,” said Southerland. In this video example he points out that, “Outrigger loads are transmitted at a 45-degree angle down to the base of excavation. If I sit too close to the edge, the load is exiting mid-way through and could collapse the bank, which is what we don’t want,” he continued.
Sutherland notes that the reason he used DICA Cribbing Blocks for this job is because it allows him to crib up the two front outriggers while staying level, and it keeps the hopper low enough for the mixing truck to transfer the concrete to the pumper.
DICA Slot Lock Cribbing Blocks and SafetyTech Outrigger Pads in action with AJ’s Concrete Pumping in Vancouver, BC.
DICA’s interlocking ProStack Cribbing Blocks provide 6 inches of height per stacked level, and are the perfect solution for gaining height when needed. By interlocking together, ProStack Cribbing can be stacked to provide a safe solution in situations where the ground is not level and additional height is needed.
The more load you exert, the tighter the blocks lock together. ProStack Slot Lock Cribbing Blocks are designed for equipment with outrigger loads up to 100,000 pounds, such as concrete pumps, boom trucks, digger derricks, and aerial devices.
