We’ve published articles about preventing trench collapse deaths before (like here and here). What we haven’t done, though, is cover this subject in any kind of detail.
To rectify that, we’d like to offer this article by the National Institute for Occupational Safety and Health (NIOSH). It covers what you can do both before and during a job to prevent trench collapses and keep yourself and your workers safe.
NIOSH, “Preventing Worker Deaths from Trench Cave-ins” (PDF)
Going to the ACE14 conference in Boston, MA? So are we! We’ll be there from June 8 to 11! Visit us in Booth 2466 (PDF) near the tapping competitions!