摘要: |
When civil engineers go into the field to visit construction sites, examine existing structures, investigate collapsed buildings or explore other disaster settings, or perform myriad other tasks, they face any number of workplace hazards. They might fall from a great height or be struck by moving vehicles or other heavy equipment. The ground they walk on - or in, in the case of an excavation - might be unstable. If they are investigating a building collapse, the building might collapse further while they are inside. Or it might catch fire or explode. Or the electricity might still be on in damaged buildings or along railroad tracks, either underfoot in a third rail or overhead in a catenary system. |