21 Dec 2017
Purpose
The purpose of this safety alert is to highlight the risk of trench collapse when a shoring box, or any other trench support system, does not extend for the full depth of the trench. Shoring boxes are also known as trench shields or drag boxes.
Background
In November 2017 a worker was seriously injured when he was crushed by ground collapse in a trench in Brisbane. He was kneelin...