What are the key points of quality control of construction projects?

Human factors mainly refer to the quality of leaders, the theoretical and technical level of operators, physical defects, carelessness, violation of discipline and rules and regulations. In construction, we should first consider the control of human factors, because people are the main body of the construction process, and the formation of engineering quality is influenced by all engineering and technical cadres, operators and service personnel involved in the construction. They are the main factors that constitute the engineering quality.

First of all, we should improve their quality awareness. Construction personnel should have five concepts: quality first, pre-control first, service for users, speaking with data, and comprehensive benefits of social benefits and enterprise benefits (combining quality, cost and construction period).

Secondly, it is the quality of people. Leaders and technical personnel are of high quality. Strong decision-making ability, that is, quality planning, target management, construction organization and technical guidance, and strong quality inspection ability; With perfect management system and effective technical measures, the project quality will be high. Operators should have superb technical skills, meticulous work style, and strictly implement the legal concept of quality standards and operating procedures; Service personnel should do a good job in technical and life services, and indirectly ensure the quality of the project with excellent work quality. To improve people's quality, we can rely on the organic combination of quality education, spiritual and material incentives, and on-the-job technical training through training and optimization.

Second, material factors.

Materials (including raw materials, finished products, semi-finished products and components) are the material conditions of engineering construction, and the quality of materials is the basis of engineering quality. If the material quality does not meet the requirements, the engineering quality will not meet the standards. Therefore, strengthening material quality control is an important guarantee to improve engineering quality. The factors affecting the quality of materials are mainly the composition, physical properties and chemical properties of materials. The key points of material control are as follows:

1) Optimize purchasing personnel, improve their political quality and quality appraisal level, and select personnel with certain professional knowledge. People who are loyal to their careers undertake this job.

2) Master material information and optimize suppliers.

3) Reasonable organization of material supply to ensure uninterrupted construction.

4) Strengthen the inspection and acceptance of materials and strictly control the quality.

5) Pay special attention to the on-site management of materials and use them reasonably.

6) Do a good job in material test and inspection. According to statistics, the cost of materials in construction projects accounts for more than 70% of the total investment. Because of this, some contractors won the project. In order to seek more benefits, we don't purchase related finished products or semi-finished products according to the varieties, specifications and technical parameters required by the engineering technical specifications, or because the quality of purchasing personnel is low, we don't effectively control the quality of their raw materials, let ourselves go and collect kickbacks and benefits from them. Other enterprises do not have a perfect management mechanism and restraint mechanism, which can not prevent unqualified fake and shoddy products and raw materials from entering the project construction, leaving quality hidden dangers for the project.

With the high development of science and technology today, it provides a scientific method for the inspection of materials. The state has introduced it in detail in the relevant technical specifications for construction. As long as it is strictly implemented in actual construction, the quality of construction materials can be guaranteed.

Third, the method factor.

The methods in the construction process include technical scheme, technological process, organizational measures, detection means, construction organization design, etc. Whether the construction scheme is correct or not directly affects the smooth realization of project quality control. Often due to poor consideration of the construction scheme, the progress is delayed, the quality is affected and the investment is increased. Therefore, when formulating and reviewing the construction scheme, comprehensive analysis and consideration must be made from the aspects of technology, management, technology, organization, operation and economy, so as to make the scheme technically feasible, economically reasonable, technologically advanced, effective in measures and easy to operate, which is conducive to improving quality, speeding up progress and reducing costs.

Fourth, mechanical equipment

In the construction stage, it is necessary to comprehensively consider the construction site conditions, building structure, construction technology and methods, construction technology and economy, reasonably select the types and parameters of machinery, rationally use mechanical equipment and operate correctly. Operators must conscientiously implement various rules and regulations, strictly abide by operating procedures, and strengthen the maintenance, maintenance and management of construction machinery.

Verb (abbreviation of verb) environmental factors

There are many environmental factors that affect the engineering quality, including engineering geology, hydrology, meteorology, noise, ventilation, vibration, lighting, pollution and so on. The influence of environmental factors on engineering quality is complex and changeable. For example, meteorological conditions are changeable, and temperature, humidity, strong wind, rainstorm, intense heat and severe cold all directly affect the project quality. Often the former process is the environment of the latter process, and the former subproject and subproject are the environment of the latter subproject and subproject. Therefore, effective measures should be taken to strictly control the environmental factors affecting the quality according to the characteristics and specific conditions of the project.

In addition, during the construction in winter rain, hot season and windy season, effective measures should be formulated according to the engineering characteristics, especially concrete engineering, earthwork, underwater engineering and aerial work, to ensure the seasonal construction quality and avoid the damage of freezing, cracking and scouring to the engineering quality. At the same time, it is necessary to continuously improve the environment of the construction site, minimize the harm and environmental pollution caused by construction, improve the management system of the construction site, and implement civilized construction.

Improve the quality control level through scientific and technological progress and total quality management. The technical policy of the Ministry of Construction points out: "To establish the concept of building products, we should pay attention to the improvement of the quality and function of the final building products in all links, and upgrade the products and construction technology through technological progress." The relationship between new technology, new process and quality is expounded. For the sake of engineering quality, we should pay attention to the advancement and applicability of new technologies and new processes. In the whole process of construction, it is necessary to establish process quality standards and operating procedures that meet the technical requirements, establish a strict assessment system, and constantly improve and improve the construction technology and process level. Ensure the engineering quality. Establish a strict quality assurance system and quality responsibility system, all divisions and subdivisional projects should be fully managed, and the construction team should determine the quality objectives and research contents according to its own situation, engineering characteristics and quality common faults. Formulate specific quality assurance plans and key measures. Clarify the implementation content, methods and effects. Strengthening quality inspection In the implementation of quality plan and key measures, the results should be quantitatively analyzed, and conclusions and experiences should be drawn, which will be transformed into "standards" and "systems" to ensure quality in the future and form new quality assurance measures; The problems found will become the pre-control target of quality management in the future.

"A century-long plan, quality policy one". In the management of engineering construction projects, we should understand the great significance of engineering quality from the perspective of enterprise survival and development, adhere to the business strategy of "winning by quality", manage scientifically, standardize construction, and promote enterprises to broaden the market, win the market and seek greater development.