Safety technology of concrete construction?

1. The construction personnel must receive entrance safety education when entering the site, and can only enter the construction site after passing the examination;

2. Workers entering the construction site must wear qualified safety helmet, fasten the chin strap and lock the buckle;

3. The construction personnel shall strictly abide by the operation procedures, and the vibrating equipment shall be safe and reliable;

4. When pumping concrete is poured, the conveying pipe head should be fastened reliably without slurry leakage, the safety valve should be intact, the pipe bracket should be firm, and the pressure must be relieved during maintenance;

5. When pouring frame beams, columns and walls, an operation platform should be set up, and the springboard should be paved and fastened. It is forbidden to operate directly on the formwork or support.

6. When using chute and barrel string, it must be fixed firmly, and the operating parts should be provided with protective bars. It is forbidden to stand on the chute for operation;

7. When lifting concrete with the hopper, it is necessary to work closely with the bell man and lift it slowly to prevent the hopper from colliding and hurting people;

8. When vibrating concrete, operators must wear insulating gloves and shoes to prevent electric shock;

9. The voltage of lighting lanterns for construction at night shall not be greater than 36V, and the lanterns and mobile brake boxes shall not be placed on the wall formwork platform or roof reinforcement. In case of severe weather such as strong wind, rain, snow and fog, the operation shall be stopped;

1. Pay attention to the rain, moisture and electric shock prevention of electrical equipment during rainy season construction;

11. When pouring the roof, the external protective frame shall be erected beyond the operation surface;

12. Before using the vibrating rod, check that all parts are firmly connected, rotating in the right direction and clean;

13. When the operation is transferred, the motor cable should be kept in sufficient length and height, and it is forbidden to drag or pull the vibrator with the cable;

14. The vibrator must know the safety knowledge and usage of the vibrator, and clean the equipment timely after maintenance and operation;

15. The connection of the vibrator must be correct, the insulation resistance of the motor must be qualified, and there must be reliable zero line protection, and qualified leakage protection switch protection must be installed;

16. The plug-in vibrator should be operated by two people, with one person controlling the vibrator and one person controlling the motor and switch. The bending radius of the rod tube should not be less than 5cm,

and it should not be more than two bends. The vibrating rod should be inserted and pulled naturally, and it should not be hard to plug or push. Don't touch hard objects such as steel bars or templates, and you can't pull out steel bars with the rod body.

17. In winter construction, if it is difficult to start due to the condensation of lubricating oil, it can be baked slowly with fire, and it is not allowed to be baked with strong fire or scalded with boiling water;

18. When using the plate vibrator, the cable must be insulated and dry. When moving or turning, the motor must not be trampled, and the distance between the power switch box and the operating point

must not exceed 3m, and it must be attended by special personnel. When overhauling, the switch must be turned off.

19. When pumping concrete, check whether all parts and connections are intact before operation;

2. The connection between boom pipe and distribution pipe must be connected by connecting hose. It is forbidden to connect boom pipe directly with piping. The concrete outlet at the front end of hose should keep a certain distance from the concrete pouring surface.

21. Monitor all kinds of instruments and indicator lights at any time, and adjust them in time if they are abnormal;

22. During operation, it is forbidden to fill lubricating oil for maintenance. Keep the water tank full of clear water, and deal with it in time when it is found that the water quality is turbid and there are more sand grains;

23. The grid on the hopper shall not be removed at will during operation;

24. When the pump is running, it is forbidden to put your hand into the hopper or grasp the distribution valve by hand. If you want to work on the hopper or distribution valve, you should first turn off the motor and eliminate the pressure of the accumulator (just press the inching button), and carefully implement the precautions before, during and after work;

25. In hot weather, prevent the oil temperature from being too high. If it reaches 7℃ or burns, stop running. Anti-freezing measures should be taken in cold season to prevent freezing damage to machinery;

26. The conveying pipeline should be fixed and padded. It is forbidden to bend the conveying hose to avoid the hose explosion. When air cleaning management is adopted, it must be carried out in strict accordance with the operating procedures.

27. Do not adjust the pressure of the hydraulic system at will, and do not suck air or pump without materials;

28. After the operation is completed, release the hydraulic oil pressure of the accumulator, and it is forbidden to operate by non-drivers. Operators are not allowed to leave their posts at will.

29. Pump truck drivers should hold relevant certificates;

3. After pumping, the pipeline should be cleaned in time. There are two methods to clean the conveying pipeline: water washing and air washing, which are carried out by pushing sponge or plastic ball with pressurized water or compressed air respectively. Before cleaning, the suction should be reversed to reduce the residual pressure in the pipeline and reduce the cleaning force. (When cleaning, first remove the big elbow at the tail of the pump truck, put some waste paper or sacks into the cone ball, then put the sponge ball in, fill the washing tank with water, and then cover the lid tightly. In case of water washing, open the inlet valve and close the inlet and diffuser valves; in case of gas washing, open the inlet valve and close the inlet valve). When cleaning, pay attention to the pressure gauge, which should not exceed the specified maximum pressure limit to prevent tube explosion. Water washing and gas washing are not allowed to be used at the same time. When cleaning, all personnel should stay away from the nozzle and add protective devices at the nozzle to prevent concrete from suddenly rushing out of the pipe, causing personal injury accidents;

31. When the pump pipe is transported upstairs by manpower, the transport personnel should do what they can, and pay attention to their feet and surrounding environment when handling, so as to prevent them from being mixed. When two people cooperate, they should keep pace with each other, handle with care, and it is forbidden to throw them. When lifting the tower crane, it should be placed in the bucket, and it is forbidden to go beyond the top of the bucket to prevent falling and hurting people;

32. Pump pipe installers should hang up their seat belts and hold the pump pipe firmly. If necessary, tie the long pump pipe with a safety rope to prevent the pump pipe from falling off and hurting people. The installers should concentrate and cooperate with each other. When installing, they should put away all kinds of connectors, and it is forbidden to throw them around to prevent falling and hurting people.

33. There should be a special person to regularly check the connection of the pump pipe, and repair it in time if there is any abnormality, so as to prevent the explosion-proof pipe from hurting people;

34. All illegal operations are strictly prohibited.

35. Before work, make sure that all pipe joints and fittings are intact and firm;

36. When the placing boom is working, the four-legged bottom plate must be fixed, and no one is allowed to stand under the boom, and the placing boom shall be prevented from toppling;

37. When pouring at a fixed point at high altitude, the rotation must be locked with a stop pin;

38. The pipe beam shall not be opened or installed without counterweight;

39. The staff should be able to see the scope of work when distributing cloth;

4. pipe beam extension is not allowed;

41. The length of hose shall not exceed 3m (when working with hose, five 28kg counterweights must be used);

42. Always check whether the wire rope is damaged, whether the fastening of all parts is loose, and regularly fill the moving parts with grease;

43. Check the abrasion of the conveying pipe regularly, and replace it in time when the wall thickness is less than 1mm;

44. When the placing boom is air-washed, the rubber tube at the end should be removed, and a baffle plate should be installed. No one is allowed to stand near the tube end to prevent concrete residue from hurting people.

45. Always check whether the elbow of the placing boom and the hose joint are firm to avoid falling off;

46. Operators should wear safety helmets, masks, gloves, etc., and fasten their safety belts when working at height;

47. The basement construction should have enough lighting, use low-voltage electricity, and non-electricians are not allowed to connect electricity casually;

48. Use polishing machinery correctly to prevent mechanical injuries;

49. Necessary protective measures should be taken when working near the border to prevent falling from high altitude and being hit by objects;

5. After the person who accepts the disclosure signs on the back, hand it over to the safety officer for filing.

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