The prevention and control plan for common quality problems and the special plan for the prevention

Legal analysis: 1. Formwork engineering: The formwork project should have a design and construction plan, the formwork support (frame) should have sufficient strength, stiffness and stability, and the support (frame) should be able to withstand the weight of the newly poured concrete, the weight of the formwork, the lateral pressure and the construction load.

2. Steel reinforcement engineering: steel should be purchased according to the company's designated manufacturers that meet the requirements.

3. Concrete engineering: the bottom plate is specially covered with plastic film for water retention and maintenance within 7 days after the construction is completed, the upper construction is suspended, and the 7-day deduction is drenched for water curing to ensure that the concrete surface is wet.

4. Brick masonry engineering: the bricks should be wet during masonry, and it is strictly forbidden to dry bricks on the wall masonry, so as not to weaken the adhesion between the mortar and the bricks due to premature dehydration and dryness.

Legal basis: Construction Law of the People's Republic of China

Article 58 The construction enterprise shall be responsible for the construction quality of the project. Construction enterprises must construct in accordance with engineering design drawings and construction technical standards, and must not cut corners. The original design unit shall be responsible for the modification of the engineering design, and the construction enterprise shall not modify the engineering design without authorization.

Article 59 Construction enterprises must inspect building materials, building components and equipment in accordance with the engineering design requirements, construction technical standards and contract agreements, and shall not use those that are unqualified.

Article 60 The quality of the foundation works and the main structure of the building must be ensured within a reasonable service life. When the construction project is completed, the roof and wall shall not leave quality defects such as leakage and cracking; The construction enterprise shall repair the quality defects that have been discovered.

This is a common problem in businesses, and it is often a symptom rather than a cure.

For example, once there is a quality problem in machining, it is usually scrapped, repaired, and released by concessions, which is only a treatment of the event that has occurred, but how to prevent it, it is recommended as follows:

1. First review whether the process technical documents are correct and whether the process parameters meet the requirements;

2. In the case that the former is correct, then see whether the operator has performed the first inspection, whether there is a self-inspection record in the process, the frequency of self-inspection, etc.;

3. If the operator has achieved the requirements of the three inspections, check whether the testing facilities have been verified and whether they remain effective;

4. Check whether it is a case (gross error);

5. Check whether the size distribution of the final inspection of the previous batch and the inspection record of this batch is discrete (the fluctuation is too large), otherwise there is a tendency to have problems;

6. The use and maintenance of the facility and the status of the facility;

7. Check whether the operator's skills are compatible with the processing difficulty requirements of the parts, otherwise it is necessary to train or replace personnel with higher operating skills;

8. Check whether the operator is proficient in the use of special measuring tools and fixtures, whether the tooling fixtures are in good condition, and whether the accuracy is effective.

The above is for reference!