In November 2017 a worker was seriously injured when he was crushed by ground collapse in a trench in Brisbane. He was kneeling down in an un-shored section of a trench one metre below the bottom edge of the shoring box (refer Photograph 1). The ground collapse was sudden and rapidly engulfed the lower part of his body.

A similar incident occurred on the Gold Coast in 2016, also causing serious injuries to the worker. In both incidents the shoring box did not extend for the complete depth of the trench.

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