What can cause a trench collapse injury on a job site?

A trench collapse injury primarily occurs due to the instability of the soil or improper construction practices, which can lead to the walls of a trench giving way and burying workers inside. Being "caught in-between" refers to the specific danger of workers becoming trapped or crushed when the trench sides collapse, blocking their exit and making rescue difficult. This scenario represents a direct risk associated with trench work, highlighting the importance of adopting safety measures such as shoring, sloping, or shielding to prevent soil collapse and protect workers.

While electrical shock, unsafe use of ladders, and falls are all significant hazards on construction sites, they do not directly relate to the mechanics of trench injuries. The focus on "caught in-between" captures the unique dangers present with trenching operations, which requires specialized safety protocols.