The phrase "trapped miners" refers to miners who are unable to escape from an underground mine due to an accident, collapse, or other dangers. They are stuck underground and need help to be rescued or brought back to the surface. Full definition
How can a century - old idea help trapped miners? (sciencemag.org)
Published in Chicago Tribune on November 13, 2015 — Print headline: «Film manages to leach drama out of trapped miners» story - «The 33»» (chicagotribune.com)
Colson, like the rest of the world, watched the televised rescue of the 33 trapped miners in Chile this week. (religion.blogs.cnn.com)