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Explanation of the six systems for ensuring the quality of construction projects: Quality control in construction technology briefings is key to guaranteeing project quality, and the main responsibility for this lies with the construction party itself. Based on practical experience, effective systems for self-control of construction quality include: ① the three-stage quality inspection system, ② the regular quality meeting system, ③ the quality consultation system, ④ the quality sample system, ⑤ the quality labeling system, and ⑥ the quality review system. 1 Quality three-inspection system: http://img.civilcn.com/d/file/zhishi/gcgl/2020-01-13/4b30a390c9dd3c4866aa882fe007f54c.jpg The “three-inspection system” refers to self-inspection, mutual inspection, and specialized inspection. 1. “Self-inspection” refers to the operator’s own examination of the construction process (steps) or the work that has been completed, serving as a form of self-supervision. 2. “Mutual inspection” refers to the practice where operators inspect each other’s work during the construction process (or individual tasks) as well as the work that has been completed, thereby serving to supervise one another and correct errors. 3. “Special inspection” refers to the inspection of the quality of the construction process (stages) carried out by dedicated inspectors. 2 Quality Regular Meeting System: http://img.civilcn.com/d/file/zhishi/gcgl/2020-01-13/7f55f10e74f9e9a53097181e07453799.jpg During the construction process, the project department regularly convenes meetings with the heads of various relevant departments on site, on-site technicians, quality inspectors, and team leaders, in order to discuss project quality issues. These quality meetings can be weekly meetings, monthly meetings, or meetings focused on specific quality aspects. Its purpose is to strengthen quality awareness and the quality control activities related to construction drawings, to enhance quality management, to resolve quality issues, and to prevent such issues from arising or spreading during construction. 3 Quality Review System: http://img.civilcn.com/d/file/zhishi/gcgl/2020-01-13/c5142f73872218602fb07d8a55a539dc.jpg Within the project, quality assessment teams are established for various aspects such as rebar work, construction sites, concrete, masonry, analytical drawings, and installation. These teams conduct quality reviews and summaries for each completed section of the construction, and fill out relevant quality review forms for rebar, formwork, concrete, masonry, finishing work, and installation. The quality review forms indicate the number of instances of each type of quality issue that occurred, along with analyses of the reasons behind them. During the weekly quality meetings, the members of the quality consultation team conduct targeted analysis and summaries of the main issues identified during the previous week’s quality consultations, propose solutions to prevent the recurrence of those same issues in the following week. At the same time, the project engineering department conducts statistical analysis on the frequency of quality issues related to the same sub-projects across various floors, creating statistical tables to further identify trends in these issues, thereby enabling more effective solutions to common quality problems. 4 Quality Sample System: http://img.civilcn.com/d/file/zhishi/gcgl/2020-01-13/64e0c6dbe8786d5d28c3f2acfb41f3f7.jpg Demonstration samples should be created before starting large-scale construction, and the sample construction must be carried out in strict accordance with technical standards, regulatory documents, and the approved specific plans. Photos should be taken of the process of creating the engineering quality sample, and these photographic records should be kept. Key areas and critical processes should be broken down layer by layer, accompanied by textual explanations. Once the construction of the quality sample has been completed, the construction unit shall invite the supervision unit and the project owner to conduct an inspection of this quality sample. Upon completion of the acceptance, the parties involved shall issue their opinions on the acceptance of the project quality sample. After the sample is approved, the construction unit shall carry out decoration work and pre-job training; corresponding records should be kept of the briefing and training processes. 5 Quality Labeling System http://img.civilcn.com/d/file/zhishi/gcgl/2020-01-13/45bd0e3843dd36c054927f4e1811f30d.jpg The labeling system is reflected in the following aspects: 1. Technical instructions labeling – Before starting a construction task, labels are placed on site to highlight the key points and challenges involved. The specific requirements for construction, such as steel bar specifications, design requirements, and regulatory standards, are written on these labels. This facilitates managers in providing on-site instructions to workers, and it also helps workers to read the technical instructions on their own, thus achieving a integration of theory and practice. 2. Posting signs at the construction site: “Construction Site Signs” should be placed at the areas where work is being carried out. These signs should indicate the location of the construction, the name of the task, the required standards for execution, the inspection criteria, the person responsible for inspections, the operators involved, as well as any penalties in case of quality issues. This helps to ensure that problems can be traced back to their source, and that reward and punishment mechanisms can be applied. As a result, the accountability and skill levels of the relevant personnel improve, thereby contributing to the continuous enhancement of construction quality. 3. Posting of operation management systems: These systems specify the operation procedures, process requirements and standards, as well as the responsible persons; they also outline the relevant requirements and precautions. 4. Labeling system for finished and semi-finished products: Raw materials, finished products, semi-finished products, and spare parts used in construction should be labeled, indicating the construction location, specifications, model, place of origin, time of arrival, and inspection status; storage requirements should also be specified when necessary. 6 Quality Review System http://img.civilcn.com/d/file/zhishi/gcgl/2020-01-13/3a7c25d1203e478b43511d7332165339.jpg The specific procedures for the engineering quality review system are as follows: 1. When quality issues arise during the construction process, the engineering department organizes technical staff, quality control personnel, subcontractors, and team members to go to the site to conduct reviews targeting those specific issues, in order to correct them promptly and ensure that the work is carried out in a standardized and regulated manner. 2. At the end of each month, the project quality director organizes meetings with the site supervisors, technical staff, quality control personnel, and managers of the subcontracted construction teams to conduct inspections of the physical quality of the work. Following these inspections, a quality analysis meeting is held to summarize the problems that arose in terms of project quality during that month, as well as the actions taken to address them and the results of those actions.