1. Tysan Foundation Limited
Innovative Safety Initiative Award 2016 Category: Safety Operational Device Entry: Ground Operate Safety Clamp for Lifting of H-Pile (於地面操作的垂直吊運工字鐵安全夾鎖)
Project:
Foundation for the Home Ownership Scheme Development at Kai Tak Site 1G1(B)
Contract No.:
Tysan Foundation Limited

2. Innovative Ground Operate Safety Clamp for Lifting of H-Piles
(於地面操作的垂直吊運工字鐵安全夾鎖)
Advantages of Ground Operate Clamp for Lifting of H-Piles are tabulated as below:
Old Method
New Method
Advantages
Plate 1
Plate 3
The two wire ropes are served as double safety device to avoid pushing down the wire ropes to release the safety pin accidentally.
Therefore, double safety device can ensure the H-Piles to be lifted securely without hazard of falling objects.
Plate 2
Plate 4
Two separate wire ropes can be easily controlled by worker on ground level and therefore, prevent
worker from working at height for rigging and unrigging of H-Pile.
manual handling the lifting gears of H-Piles.
Deployment of hydraulic working platform or man cage is not required, so eliminate the hazard of the crush to nearby objects within congested H-Piling construction area.

3. Innovative Ground Operate Safety Clamp for Lifting of H-Piles
(於地面操作的垂直吊運工字鐵安全夾鎖)
Special alloy steel for the lock pin(鎖針to provide maximum strength & durability
Two separate wire (兩條獨立威也) ropes served as double safety devices for unlocking operation
Safety Clamp
(安全夾鎖)
Lifting eye plate (吊孔鐵板) welded on H-Pile

4. Innovative Ground Operate Safety Clamp for Lifting of H-Piles
(於地面操作的垂直吊運工字鐵安全夾鎖)
Additional lifting eye plate (吊孔鐵板) welded on H-Pile for safety clamp operation
6mm Full Weld at both ends
Dimension of steel plate:
(150mm width x 20mm thickness)
3. 400mm from the top of the pile
4. No adverse effect on original H-Pile integrity.
Plate 5
Illustration of the steel plate

5. Reference Diagrams (參考圖):
Plate 6
Diagram 1 : Initial stage for erecting the H-pile
Prevent relevant workers to work at height for attaching and detaching the lifting gears onto the H-Pile.
Tag line will be used to control the movement of the H-Pile.
Injuries can be avoided due to the hazard of crush of man-cages in congested H-piling construction area.
Plate 7
Diagram 2 :
Worker uses the tag line to control the movement of H-pile to designated location for subsequent pile driving.

6. Reference Diagrams (參考圖):
Plate 8
Diagram 3 :
Worker keeps using the tag line to guide the suspended H-pile to the designate sitting out location for subsequent pile splicing.
Plate 9
Diagram 4 : Connection of H-pile
After pile splicing, worker will pull down the two wire ropes to release the lock pin of safety clamp.
The safety clamp will be disconnected from the H-pile.

7. ~END~