Discussion on quality management of national residential building demonstration project?

In recent years, with the acceleration of the construction of new urban areas and the transformation of old cities, a large number of commercial houses have been built and put into use. These houses have improved in function and quality compared with previous years, and contributed to urban construction and the improvement of people's living standards. However, the quality of building products is not only affected by construction, design, construction, property management and other factors, but also by many complex factors such as personnel quality, material quality, geological conditions, climate, time and so on. This paper combines the quality management of Chengdu Xinyuan National Comfortable Housing Demonstration Project in the design stage, pre-construction preparation stage, construction stage and completion acceptance stage for your reference:

1 project overview

Chendu Xinyuan is located in the southwest of Changzhou City, adjacent to Jingchuan Park and South Canal. It was named after Chendu Caotang, a famous cultural relic in Changzhou, and the place where Tang Jingchuan, a famous anti-Japanese scholar in Ming Dynasty, studied. The planned land area of the residential area is 15.7 hectares, and there are 55 houses with a total construction area of 332 10000 square meters, of which the residential construction area is 247500 square meters. Equipped with clubs, supermarkets, farmers' markets and other public facilities, it can accommodate more than 2,200 families with a population of about 7,000.

2 Quality management in the design stage

(1) Invite experts from the Ministry of Construction to review the planning scheme of this project, and optimize and improve the planning and design scheme in strict accordance with the opinions of the expert group. ② A set of new technologies, such as plastic-steel insulating glass doors and windows, solar hot water system, external wall self-insulation system, external wall polystyrene particle insulation system, rainwater collection and river water comprehensive utilization system, are adopted in the design scheme, which improves the scientific and technological content of residential engineering and perfects its applicable functions. (3) Organize the construction and supervision personnel to make a preliminary examination of the design drawings and put forward reasonable suggestions on the design scheme. (4) All design drawings have been examined by experts from Changzhou Construction Drawing Review Center, and the places involved in the scheme that do not meet the mandatory provisions and relevant design specifications such as fire protection and energy conservation have been revised in time.

3 quality management in preparation stage before construction

(1) Through public bidding, the construction unit and supervision unit with good social reputation, high technology and management level and good engineering performance are selected to participate in the construction of this project. (2) After fully surveying the site, the construction unit shall prepare a detailed and targeted construction organization design, which shall be approved by the technical director of the construction unit and submitted to the supervisor for review. (3) After the construction party is fully familiar with the drawings, the construction party will organize the design, supervision and construction party to hold special design disclosure and blue prints.the design meeting. (4) The construction administrative quality supervision department shall organize the construction, supervision and construction parties to make written quality supervision disclosure before the project starts, and make clear agreements on the behaviors of all parties and the quality supervision process.

4 Quality management in the construction stage

4. 1 Implement the current and model open circuit system of the construction scheme, and strengthen the pre-control of the project quality.

(1) Compilation of construction scheme of sectional works. The construction unit shall prepare a detailed construction plan before the commencement of each subdivisional work. When reviewing the construction plan, the supervisors mainly check whether the measures are reasonable and whether they can effectively avoid the common quality problems such as "shell, crack, sand, leakage, blockage, roughness, pollution and rust". (2) Strengthen the publicity of complete sets of new technologies. In order to improve the comprehensive quality of housing and promote the development of housing technology, this project adopts a set of new technologies such as plastic-steel hollow glass doors and windows, solar hot water system, external wall self-insulation system, external wall polystyrene particle insulation system, rainwater collection and river water comprehensive utilization system. (3) Key processes and key parts of the model open circuit system. For the key working procedures and key parts such as the application of complete sets of new technologies and the detailed practices of decoration engineering, the construction personnel will first make a model according to the established construction plan, and then conduct comprehensive construction after the project owner, designer and supervisor accept it. 4.2 Strictly control the quality of raw materials and processes, and strengthen the engineering quality control ① Quality control of raw materials. Before each batch of raw materials enters the site, the construction unit will submit the certificates of conformity, quality assurance and promotion of some new materials collected to the supervisor for inspection in writing. After verifying that the quality assurance information meets the requirements, the supervisor shall conduct on-site witness sampling on the steel, cement, block, polystyrene particle thermal insulation mortar, waterproof material, exterior wall brick and other materials that should be sampled according to the relevant batches, and can only be used in this project after re-inspection by a qualified testing unit. ② Control of process quality. 1) Construction enterprises strengthen self-inspection. The construction team strictly implements the system of "self-inspection, mutual inspection and handover inspection" for process quality, and the construction of the next process can only be carried out after the quality inspector has passed the self-inspection and submitted it to the supervisor for acceptance. 2) Supervisors should strengthen on-site inspection, roving inspection and parallel inspection. 3) The construction unit shall conduct spot checks. The management personnel of the construction unit patrol the site every day to know the construction quality in time. 4) The construction administrative quality supervision department stops the inspection of key working procedures. 5) The designer will answer the questions of the construction unit in time through regular on-site office work, and check whether the on-site construction is consistent with the design drawings.

4.3 Organize labor competition to create a positive and excellent construction atmosphere. On the basis of soliciting the opinions of various construction units, the construction unit and supervision unit formulated the Detailed Rules for the Examination of Chengdu Xinyuan Labor Competition, and the participating units sent people to form an evaluation team to evaluate the quality, progress and safe and civilized construction of the project respectively. According to the evaluation results, the comprehensive award and unit award were awarded, and certain material rewards were given. Through the labor competition, the quality consciousness of the construction personnel has been obviously improved, and a competitive atmosphere of actively creating excellence has been created.

5. Quality management in completion acceptance stage

5. 1 Strengthen the collection, arrangement and filing of completion data. Completion data is a written record of project quality. Before the project is completed, the construction unit will submit complete completion data to the supervisor for inspection. After the supervisors pass the inspection, the construction unit shall hand it over to Changzhou Urban Construction Archives for filing. Ensure the timeliness, completeness and authenticity of the completion data. ? 5.2 Carry out household acceptance and strengthen post-event control of project quality. The working face of household acceptance is large, and the construction unit, supervision unit and construction unit send personnel to form a household acceptance team to measure the height and axis size of each household respectively, and conduct comprehensive acceptance of the common parts such as the ground, roof, stairwell, doors and windows, internal and external painting, water supply and drainage, building electricity, etc. The quality of engineering details has been improved obviously by pulling the net into the house for acceptance.

6 General situation of project quality Through the joint efforts of all parties in the project, all units of this project have been rated as "Changzhou Jinlong Cup Quality Project" and "Jiangsu Civilized Construction Site"; This community was also rated as "National Demonstration Project for Comfortable Living".

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