It is mainly manifested as falling from scaffolding or vertical transportation facilities, falling from holes, stairs, elevators, wellheads and pits, falling from the edges of floors, roofs and high platforms, falling from engineering structures during construction and installation, falling from mechanical equipment, and falling due to other reasons such as slipping, trampling, dragging, collision and imbalance.
2. collapse.
The earth and stone of ditch wall, pit wall, edge and cavern collapse, the buildings on it collapse due to foundation hollowing, settlement, sliding and unstable foundation, the buildings under construction collapse, temporary construction facilities collapse, stacked objects collapse, scaffolding, derrick and support frame collapse, unstable support and collapse caused by powerful nature, etc.
3. The influence of objects.
The main manifestations are: falling objects in the air, falling blocks, rolling objects, hard injuries caused by touching fixed or moving objects, bumps caused by bouncing objects, collision fragments, flying fragments, injuries caused by hard objects, etc.
4. Damage caused by electric shock.
Accidents of crane boom or other conductors touching high-voltage lines, electric shock accidents caused by broken and broken live wires, electric shock accidents caused by digging damaged buried wires, electric leakage accidents of electrical equipment, lightning accidents of equipment switch box and control box, etc.
5. Other injuries.
Lifting injury, fire and explosion injury, poisoning and suffocation, scald, sprain, heatstroke, high-pressure operation injury, etc.