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What are the safety operation procedures for drilling and piling?
2. The site shall be leveled and filled, and the walking frame shall be laid with a square wood of 30cm×30cm long and 4m.
3. The power cord of the pile driver must be overhead. The mobile frame is not allowed to touch the high and low voltage wires, and construction operations such as pile flushing and steel bar hanging are not allowed under the high and low voltage wires.
4. The power consumption mode should adopt the three-level distribution mode of one machine, one brake, one leakage, one box and one lock. The electrical box on the frame is in good condition, the motor is not less than grounded on both sides, the protection zero line is firm and reliable, and the electric shock protector is sensitive.
5. Before operation, check whether the connection between the hoist and the frame is firm, and whether there is looseness, wear and deformation; Whether the clutch brake is sensitive; Whether the steel rope connection (including steering gear) is loose; Whether the wire rope is broken, worn, kinked and deformed reaches the scrapping standard. After operation, the switch must be turned off and the electric box locked.
6. Before operation, check the power cord of the mud pump motor, which must meet the requirements of Technical Specification for Electrical Safety. Grounding protection zero line is firm and reliable, leakage protection device should be sensitive, and waterproof and dustproof measures should be taken.
7, it is forbidden to use damaged or faulty electrical equipment, it is forbidden to hook the power cord directly on the fuse, it is forbidden to replace the fuse with copper wire and aluminum wire. The electric box must have a warning sign of "beware of electric shock".
8, leakage protection switch must be tested once a day (press the test button) to confirm that the ring is good. Select the appropriate switch, fuse and power cord according to the power of electrical equipment. The shell of electrical equipment must have reliable protective grounding.
9. Before using electrical equipment, the insulation resistance to ground and phase must be tested, and the resistance value is greater than or equal to 0.5 megohm. At the same time, check whether the power cord is damaged. Protective covers must be set at the parts where belts, gears and worms rotate or are prone to accidents.
10. When overhauling electrical equipment, it is necessary to disconnect the power supply with obvious disconnection points, use intact electrical inspection equipment to verify that there is no electricity, lock the electrical box, put up the sign "No switching on when someone is working", connect the grounding protection line, and arrange special personnel to guard it when necessary.
1 1. In case of heavy rain and gale of magnitude 6 or above during operation, the power supply must be cut off and the operation must be stopped. If there is a typhoon warning, the pile must be fastened with cables and wind ropes, and measures such as lowering the pile frame should be taken if necessary. After the storm, a comprehensive inspection must be carried out.
12. Keep the distance between oxygen cylinder and acetylene cylinder at least 5m. The gas cylinder cannot be put down for use. There shall be no flammable materials around the cutting area/within 0/0 meter of Kloc. There should be no one under the cutting operation. Gas cylinders must be equipped with flashback prevention valves. The gas pipeline shall be free of cracks and gas leakage, and its length shall be between 15m and 20m. If the pressure gauge is damaged or fails, it must be replaced.
13, oxygen cylinders and acetylene cylinders must have sun protection and high temperature prevention measures, and oxygen cylinders and acetylene cylinders must not have grease. There shall be no open flame around the cylinder/within 0/0 meter of Kloc. Oxygen cylinders and acetylene cylinders must be handled separately, not in the same space.
14, electricians and welders shall operate according to the relevant safety regulations of the corresponding type of work.
15, the power cord of the welding machine should have a protective cover, and the operator should not sit on the welding machine. The welding machine should be placed on a flat and clean surface, and there should be no water, mud, iron filings, combustible substances and other sundries in the place where the welding machine is placed. It is forbidden for operators to sit on welding workpieces.
16. There shall be no inflammable and explosive articles around the welding 10 meter. The welding machine should have solid and reliable grounding protection. The welding machine shall be in good condition, and the wiring part shall have a protective cover. Electrode holder and welding wire shall be intact. Labor protection articles (protective glasses, welding gloves, masks, insulated shoes, etc. ) be sure to bring it.
17, it is forbidden to start the motor with load, and it is forbidden to use feet instead of hands.
18, the brake belt shall not be affected with damp, and the protective cover of the drive belt shall be complete and intact.
19, maintenance or lubricating oil, must stop running after cutting off the power supply.
20, when working at the top of the frame, you must first fasten your seat belt.
2 1, homework personnel are strictly prohibited to wear gloves to arrange the wire rope of the hoist.
22, mud pool to do enough warning signs, completes the fence protection.
23. When lifting heavy objects such as pile hammers and liners, it is forbidden to stand and pass under the derrick and heavy objects.
24. The overall walking frame of the pile driver moves (forward or backward), and the longitudinal movement is completed by winding 2# steel wire rope on the pile driver to make the lifting pipe move on the square wood. The lateral movement is completed by the contraction of the sliding group beside the pile driver to make the chassis caliper slide on the walking pipe. The lifting pipe itself moves with the help of the jack, and it is not allowed to hang the hammer walking frame.
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