Discussion on safety regulations of precast piles (prestressed pipe piles)?

1. Before construction, all construction personnel shall be educated on safety technical operation procedures, relevant safety regulations and safety systems, and they can enter the site construction only after passing the examination. Special type of work personnel must hold relevant certificates.

2. Before construction, site survey should be conducted to measure the positions of surrounding houses and buildings, investigate underground pipelines, and prepare reference materials for site reinforcement, surrounding safety protection and other construction measures in the future construction process. If there are high-voltage lines, ensure that the high-voltage lines are removed before piling to ensure construction safety.

3. The "tn-s" system shall be implemented for the site construction, and the "one machine, one explanation, one insurance box" shall be implemented for the construction machinery. The production and installation of power supply lines and distribution boxes shall be done well to ensure the safety of electricity consumption.

4. Take safety measures to prevent electric shock at the scene. Cables and wires shall be erected according to the specification requirements, and the joints shall not be damaged. Electrical equipment must have a zero grounding protection device, and the power switch box should meet the requirements.

5, all electrical equipment, non-electrical personnel shall not jump around, equipment switch to have someone to use, electrician to show certificates.

6. All electrical equipment shall be protected by "one machine, one explanation and one protection". When not in use, cut off the power supply in time and lock the switch box after work.

7. When crawler crane and engine are started, all operating handles must be placed in neutral position. After starting, check all instruments, indicated values and engine operation, and then start loading.

8, crane operating point test run, check whether the institutions work normally and reliably, especially after the rain and snow, should try again, confirm the reliable rear can work.

9, crane operation scope can not have obstacles that affect the operation. No one can stay under the boom when working. It is forbidden to carry people by crane.

10. Safety protection devices such as luffing indicator, torque limiter and travel switch of crane shall not be adjusted and removed at will, and it is forbidden to use limit devices instead of manipulation. For the crane that lifts the limit device, the maximum elevation angle shall not exceed 78 degrees.

1 1. The crane must be operated according to the specified lifting performance, and it is not allowed to overload or lift objects with unknown weight. It is forbidden to use crane hook to pull or hang.

12. When lifting with full load, the crane must be placed on a solid level ground. First, lift the heavy object 20-50 cm from the ground, and then continue lifting after checking the stability and braking reliability of the crane. Actions should be translated, and it is forbidden to do two actions at the same time.

13. When the crane is walking under load, the boom should be parallel to the crawler, and the heavy objects should be tied with ropes. When turning a corner, it is not advisable to rush. Turning is not allowed where the road is rugged.

14. When the crane runs on the slope with no load, the elevation angle of the boom should be reduced when going uphill and increased when going downhill to balance the center of gravity of the crane. It is forbidden to slide in neutral when going downhill.

15. In case of strong wind (above level 6) and rainstorm, stop lifting operation and turn the boom to the downwind direction.

16, the static pile driver should strictly follow the requirements of the pile manual, and the machinery should not be overloaded.

17. Before construction, check the electrical circuit of each part of the pile driver and make grounding protection according to regulations.

18, jack-up cylinder or return action should be interchanged in different levels, with a single cylinder acting no more than 50 mm at a time and two cylinders acting no more than 100 mm at a time.

19. Fences and instructions should be set up during the operation. Non-operators should leave the pile driver 10 meters away, and operators should not get close to the lifting parts of the pile driver base.

20, crane in the process of hanging pile and lowering pile stability, it is forbidden to walk and adjust, pile shall not stay in the air.

2 1. Operators should cooperate closely and adjust the verticality of piles at any time to avoid pile breakage.

22. When piling, if the hydraulic temperature reaches 80 degrees, continue construction after cooling.

23. In case of floating machine during construction, the piling machine should be returned first, and then the construction will continue.

24. When the operation is stopped, it should be transported to the middle position of the pile driver and stopped on the flat ground first, and then all the cylinders and piston rods of all institutions should be returned to avoid the exposed corrosion of the piston rod.

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