Recruit pipeline technicians

When an enterprise was carrying out underground pipeline maintenance, an employee of the enterprise led three laborers recruited from the labor market to work on the spot that day. 1 worker who first went down the well fainted from poisoning, and the other three immediately went down the well for rescue. Because I didn't bring any protective equipment, I was poisoned and fell to the ground, resulting in four deaths.

In order to prevent similar incidents from happening again, the preventive measures should be taken: no one is allowed to enter the inspection well again. The options are: a, temporary workers are not allowed to work in the manhole; B, no one is allowed to enter the manhole; C, new workers safety knowledge training before mount guard; D, manhole permanently closed.

Matters needing attention in underground pipeline maintenance

1. Investigate underground pipelines: Before maintenance, it is necessary to investigate underground pipelines, including pipeline material, service life, pipe diameter, direction and depth. This information helps to make a reasonable maintenance plan and budget.

2. Make a maintenance plan: According to the investigation results, make a detailed maintenance plan, including workflow, staffing, time arrangement, safety measures, etc. When making a plan, we need to consider the actual situation and feasibility to avoid unexpected situations.

3. Prepare maintenance materials: according to the maintenance plan, prepare the required materials and equipment, including pipelines, fittings, valves, sealing materials, pipeline cleaning equipment, etc. When choosing materials and equipment, we need to consider their quality and adaptability.

4. Ensure safety: During maintenance, attention should be paid to the safety of personnel and equipment. Appropriate safety measures should be taken, such as wearing protective clothing and using safety equipment. At the same time, it is necessary to manage the site to avoid unexpected situations.

5. Environmental protection: During the maintenance process, attention should be paid to the impact on the environment. Corresponding measures need to be taken, such as using environmentally friendly materials to reduce noise and dust. Standardized operation: When carrying out maintenance, relevant specifications and standards must be observed. The operation must be carried out in accordance with the operating procedures to avoid unexpected situations.

6. Record maintenance information: after maintenance, it is necessary to record the maintenance situation, including maintenance time, staffing, material use and maintenance effect. This information helps to evaluate and summarize the maintenance work.