WebSep 23, 2024 · 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 … WebNov 16, 2024 · There are reports where employees have been killed or seriously injured in cave-ins in trenches that were only four feet deep, three feet deep, and even one that was a two-foot-eight-inch-deep trench.
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WebThe work process involved the excavator operator cutting a trench and lowering in a new section of pipe, while the pipe layer was in the trench connecting the pipe sections and working around the moving excavator bucket. In this operation, the walls of the trench reportedly were sloped back or benched to prevent cave-ins. WebTrenches can collapse without warning entrapping and surrounding a victim in seconds – … hugh thomson kerr
Question: At what depth must employees be protected from cave ins …
WebJun 28, 2016 · The result is a cave-in. Cave-ins occur suddenly-usually too quickly for a worker to react. Cave-ins are more likely to occur in unprotected excavations where: The excavation is dug in unstable or ... WebOSHA is focusing on reducing trenching and excavation hazards. Trench collapses, or … WebConsidering the Excavation or trenching cave-ins, 9 fatalities (53%) were reported in trenches between 5-10 ft deep and 8 fatalities (47%) in trenches deeper than 10 feet. According with OSHA, 38% of the fatalities occur in trenches less than 10 feet. (OSHA, 1990) Just one reportshowed that the trench had adequate protection, like hugh thomson moelis