Auxiliary shaft pipeline reconstruction construction plan and safety measures?

What are the specific contents of the auxiliary shaft pipeline reconstruction construction plan and safety measures? Zhongda Consulting will answer them below.

1. Construction Overview:

Due to production needs, the original clean water pump room - 40 to 0 meter slope water supply pipeline is abandoned and a new 4″ water supply pipeline needs to be installed. The pipeline trend is -40 clean water pump - auxiliary shaft - 0 meters, and the new pipe is connected to the original pipeline at the east side of 0 meters. In order to ensure the safety and smoothness of the construction process, this plan and measure is formulated.

2. Construction time: August 2012 - August 2012

3. Construction unit: Mechanical and electrical workshop

4. Person in charge of the construction site: ****

5. Person in charge of construction safety: ***

6. Construction plan:

1. Connect the water supply pipe from the -40 clean water pump room to the -40 wellhead in advance The road erection is well welded, and the pipeline is compatible with the original Feng Shui pipeline bridge.

2. Insert the 4″ pipe used in the wellbore pipeline and construction tools and materials such as electric welding machine, small winch, and M16U-type bolts. , pulleys, deck boards, skids (the dimensions need to be measured, manufactured and processed on site in advance), etc., etc., should be returned to the 0m east side horse head gate in advance for later use.

3. The wellbore pipeline welding construction site is in the ladder room under the horse head door on the east side of 0 meters, and the fixed position of the pipeline is at the outer edge of the channel steel between ladders (it needs to be 0 meters to -40 meters outside the ladder room in advance Drill two Φ20mm reserved holes with a spacing of 135mm on the side of the channel steel near the wellbore for fixing U-shaped bolts).

4. Use a ground anchor to fix a small winch at the appropriate position of the horse head gate on the east side of 0m in advance. Hang a pulley on the steel beam above the horse head gate. The steel wire rope goes around the pulley to fix the steel pipe firmly.

5. Manually slide the steel pipe to the outer channel steel of the ladder room close to the wellbore side, start the small winch, return the steel pipe to a suitable position above the platform of the ladder room, and brake the small winch.

6. Contact the signalman to return the top of the cage to the same plane as the channel steel platform between ladders. Then, the personnel stand on the top of the cage and build a wooden platform on the top of the cage and the channel steel between ladders.

7. One group of people went down to the platform between the ladders, and the other group stood on the outside of the pre-welded steel pipe through the wooden platform on the top of the cage.

8. The two groups of personnel coordinated and used U-bolts to fix the steel pipes and pads to the outer channel steel of the platform between ladders.

9. Remove the small winch wire rope and follow steps 5-8 to fix the next piece of steel on the channel steel between the ladders on the next floor. Then, the people in the ladder room and the people on the cage platform will first fix the two steel pipes. Spot weld together, and then fully weld the joint between the two steel pipes.

10. Follow the above steps to connect the water supply pipeline from 0 meters to -40 meters to the horse head gate.

11. Fix the -40-meter Matoumen steel pipe and the water supply pipe from the clean water pump room to the wellhead by welding.

12. After the pipeline modification is completed, test the water and observe whether there is any water leakage.

13. After the construction is completed, the on-site tools and materials are sorted out, and then the newly renovated pipelines are painted with anti-rust paint.

14. Clean the site and the construction is completed.

7. Construction safety measures:

1. Before construction, clean up the debris on both sides of the auxiliary wellhead, 0-meter, and -40-meter horse head gates, and send dedicated personnel during the construction process. Guard to prevent objects from falling into the well and ensure the safety of the well construction workers.

2. Construction workers must wear complete labor protection equipment and carry lighting tools. Workers in ladder rooms, horse head doors and cage top platforms must wear qualified safety belts and fix them nearby. Strong and reliable place.

3. Before construction, prepare construction tools and materials such as electric welders, small winches, pulleys, skids, U-bolts, etc., and prepare them to the construction site in advance and arrange for dedicated personnel to take care of them.

4. Before construction, you must first check the integrity of the well shaft and the pipelines, cables and other facilities between the ladders from top to bottom. If it is found that the components between the ladders are rusted and damaged, the guard plates are falling off and loose, and other unsafe factors that threaten the construction When it occurs, it must be eliminated immediately and work can only continue after confirming that there is no danger. Inspections must be carried out before each construction.

5. The braking conditions of small winches, wire ropes and pulleys used in construction must be checked daily. They must be replaced when there is a safety hazard. When the wire rope is worn or has broken strands, it must be replaced with a new rope. The diameter of the wire rope must be within 14mm or more. Small winches are fixed with ground anchors, and the anchoring force is not less than 1t/root.

6. When welding steel pipes, ensure that the pipes are in a straight line up and down, and the distance between the pipes and the channel steel between the ladders must also be consistent.

7. All tools and materials used in construction must take anti-fall measures to prevent them from falling into the shaft.

8. During the construction process, people at the Ma Tou Gate are not allowed to cross the safety guardrail. People in the ladder room are not allowed to stick their bodies out of the guardrail between the ladders. People on the wooden platform on the top of the cage must fasten their safety belts and fix them to the cage. The top is solid and reliable. When constructing the ladder room, workers should pay special attention to observe whether the guard plate is loose and corroded. It is strictly forbidden to lean on or support the guard plate when the guard plate is loose and corroded.

9. The wooden platform on the top of the cage must be stable and reliable, and the number of wooden boards must not be less than two.

10. There must be sufficient lighting at the construction site to ensure that construction workers can see clearly. If necessary, arrange for someone to use a miner's lamp to assist with lighting.

11. When using electric welding or gas cutting during construction, strictly follow the electric welding and gas cutting measures.

12. Before each construction begins, carefully check the last pipeline fixation condition. If there are any safety hazards, measures must be taken to deal with them. Construction is strictly prohibited if they are not dealt with.

13. During the construction period, the auxiliary shaft winch is strictly prohibited from moving.

14. Before construction, implement this measure to all construction personnel and sign their names. Those who do not participate in the implementation of measures are not allowed to participate in construction.

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