1. Crush while transporting and unloading steel frame structure
안전분야-교육자료
미디어개발
Manufacture
Serious Accidents in Manufacturing -
Crush while transporting and unloading steel frame structure
(Steel frame - Crush)
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2. I. Fatality Overview Table of Contents II. Process Overview
III. Fatality Object
IV. Fatality Process
Power Point Training Material on Serious Accidents in Production
V. Fatality Cause
VI. Precautions

3. Fatality Overview Fatality reconstruction
I. Fatality Overview
II. Process Overview
III. Fatality Object
IV. Fatality Process
V. Fatality Cause
VI. Precautions
Fatality Overview
Date & Time: 08:00, April O, OOOO
Place: machine manufacturing workplace in Kyeongnam
Victim: a production worker
The Victim transported a steel frame foundation of an aggregate separator (screen) on the workplace floor using a ceiling crane (10 ton) and leaned it against steel-frame foundation of an aggregate supply hopper.
When a clamp was removed, steel-frame foundation of an aggregate separator fell forward the victim to death.
victim’s working position
overturned steel foundation
Power Point Training Material on Serious Accidents in Production
Fatality reconstruction

4. Process Overview Fatality Process
I. Fatality Overview
II. Process Overview
III. Fatality Object
IV. Fatality Process
V. Fatality Cause
VI. Precautions
Process Overview
Fatality Process
- The process was to manufacture steel-frame foundation (6,310mm × 3,450mm, 1.3 ton) on which aggregate separator (screen) will be mounted using H beams (250 × 250 × 12t). They manufactured two steel-frame foundations of an aggregate separator. Since the space for another work was so small, they tried to move steel-frame foundation onto the corner using the ceiling crane (10 ton) to secure workspace.
victim’s crush point
Power Point Training Material on Serious Accidents in Production
Fatality point

5. Standard of steel-frame structure
I. Fatality Overview
II. Process Overview
III. Fatality Object
IV. Fatality Process
V. Fatality Cause
VI. Precautions
III. Fatality Object
Fatality Object: steel-frame structure
Dimension: 6,310 * 3,450
Weight: 1.3 ton
H beam dimensions
250 * 250 * 12 t
Power Point Training Material on Serious Accidents in Production
Standard of steel-frame structure 5

6. III. Fatality Object (Overview)
I. Fatality Overview
II. Process Overview
III. Fatality Object
IV. Fatality Process
V. Fatality Cause
VI. Precautions
III. Fatality Object (Overview)
victim’s working position
steel-frame foundation of an aggregate screen
Power Point Training Material on Serious Accidents in Production
steel-frame structure
steel-frame foundation of an aggregate separator 6

7. I. Fatality Overview
II. Process Overview
III. Fatality Object
IV. Fatality Process
V. Fatality Cause
VI. Precautions
IV. Fatality Process
The victim and one co-worker went to the site at about 08:00, April O, 2007 and they were preparing to transport two steel-frame foundations of an aggregate separator on the workplace floor to near the structure to install aggregate supply hopper located at the corner.
To move the steel-frame foundation of an aggregate separator, the victim was giving hand signals on the upper part of the structure (1.8m) and the co-worker operated the crane on the floor.
At about 08:30, they put steel-frame foundation of an aggregate separator vertically and the victim removed the clamp that was supporting steel-frame foundation of an aggregate separator from the upper part of the structure to install the hopper. At that time, steel-frame foundation fell towards the victim owing to partiality load and the victim was crushed between steel-frame foundation and another steel-frame structure to death.
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8. V. Fatality Cause Unprepared work plan of handling heavy object
I. Fatality Overview
II. Process Overview
III. Fatality Object
IV. Fatality Process
V. Fatality Cause
VI. Precautions
V. Fatality Cause
Unprepared work plan of handling heavy object
To handle heavy objects, you must prepare a work plan of heavy object’s type and shape, handling method and order, workplace size. However, there was no work plan.
No protections against fall from steel frame structure
- To handle steel-frame structure and remove clamps supporting the structure, there was fall hazard. However, they removed the clamp without protections against fall. Therefore, protections against fall or turnover of steel-frame foundation was insufficient.
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9. VI. Precautions Thorough preparation of work plan and education
I. Fatality Overview
II. Process Overview
III. Fatality Object
IV. Fatality Process
V. Fatality Cause
VI. Precautions
VI. Precautions
Thorough preparation of work plan and education
To handle heavy objects such as steel-frame structure, you must prepare a work plan of safe working process considering heavy object’s type and shape, handling method and order, workplace size and topography and train workers prior to any work.
Improving preparation against fall off steel frame structure and working process
- To handle steel-frame structure, you must safety measures and must not remove hanging ropes until the steel-frame structure is completely fix to prevent any potential hazard to workers by structure fall or turnover.
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10. Thank You.