Hoisting refers to the completion of structural hoisting and installation of facilities by using corresponding mechanical equipment and facilities in construction projects. Its operation belongs to dangerous operation, with complex working environment and great technical difficulty.
1. Before operation, a special construction scheme shall be prepared according to the operation characteristics, and the scheme and safety technical disclosure shall be made to the operators.
2, homework should be set up around the warning zone, set up eye-catching warning village records, to prevent irrelevant personnel from entering; Guardians should be set up in special dangerous places.
3. The operating points of most lifting operations must be operated by professional and technical personnel; Personnel who belong to special operations must receive special safety operation training in accordance with the relevant provisions of the state and obtain the qualification certificate for special operations before taking up their posts.
4, homework personnel should choose a safe place to work in the field operation conditions. It is forbidden to stand and pass in the area where the hoist and the ground pulley cross the wire rope.
5, the lifting process must be equipped with specialist command, other personnel must obey the command. Lifting command can't concurrently hold other jobs. And should ensure that the crane driver clearly and accurately hear the command signal.
6. In the process of operation, the principle of "ten don't lift" of the crane must be observed.
7. The binding requirements of the hoisted object shall meet the binding requirements of the hoisted object of the tower crane in the first section.
8, component storage site should be smooth and solid. The stacking of components shall be leveled with square timber, stable, and shall not exceed the height (generally not more than 1.6m). In addition to setting up stow-wood, corresponding supports should be set up when necessary to improve the stability of components. Irrelevant personnel are forbidden to walk between stacked components to prevent components from collapsing and crowding people.
9, in the open air in case of more than six winds or heavy rain, heavy snow, fog and other weather, should stop lifting operations.
10, when the crane is working, it is forbidden for anyone to stay, work or pass under the boom and hanging objects. When lifting heavy objects, it is forbidden to pass above people. It is forbidden to carry people by crane.
1 1. Precautions for common lifting tools
⑴ Manual gear shifting: Operators should be trained and qualified before taking up their posts. When lifting objects, pull the chain slowly, but do not tilt. When one person can't pull, find out the reason and forbid many people to pull together.
⑵ chain block: Operators should be trained and qualified before taking up their posts. Before use, check the reliability of the self-locking clamping device. After the wire rope is clamped, it should be able to reciprocate, otherwise it is prohibited to use it.
(3) Jack: The operator shall be trained and qualified before taking up his post. The jack should be placed on a flat and solid ground and padded with wooden boards or steel plates to prevent the ground from sinking. The contact surface between the top and smooth objects should be padded with hardwood to prevent sliding. At the beginning of the operation, jack-up should be carried out step by step, pay attention to prevent the top from tilting, and always keep the balance of heavy objects.
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