1 quality assurance system

According to the requirements of ISO9000 quality assurance model standard, establish a perfect quality assurance system, formulate a quality plan, standardize the quality activities in the whole construction process, and all contractors strictly implement the responsibilities and working procedures specified in the quality plan to ensure the realization of quality objectives.

For the quality assurance system, see the attached drawings "Quality Assurance System Diagram" and "Quality Control System Diagram".

2 Quality management system

1) quality education and training system

Educate all managers, technicians and workers involved in the construction on quality awareness, quality management knowledge, professional technical skills and relevant business knowledge, and conduct professional training. After passing the qualification, hold relevant certificates and start construction.

2) One-vote veto system for project quality

Adhere to the principle that progress obeys quality in construction, and implement the one-vote veto system of project quality in the whole construction management activities.

3) Review system of measurement and technical data

Before the project starts and in the process of construction, we should carefully correct and retest, record the measurement results in detail, and establish a machine account, and carry out the construction in strict accordance with the machine account.

During the commencement and construction of the project, the design drawings, technical disclosure and process standards shall be reviewed and signed, which shall be signed step by step by technical leaders at all levels and signed by the executor.

4) Regular and irregular quality inspection and regular quality meeting system

The safety and quality supervision office adopts the method of combining regular inspection with irregular spot check to supervise the construction quality, and makes key inspection and joint inspection on key working procedures and major concealed works, including: engineering quality grade and quality evaluation, construction site operation, civilized construction and environmental protection, original construction records, and implementation of total quality management, etc.

Adhere to the system of holding regular quality analysis meetings, carefully analyze, study and summarize all kinds of information feedback in the construction process, and formulate targeted measures; Take measures to rectify the quality hidden dangers found in the construction process within a time limit to ensure the quality of the project.

5) Take cover engineering inspection visa system

Implement the system of pre-inspection and re-inspection of key parts and concealed works. After the self-inspection and special inspection of concealed works are qualified, fill in the inspection certificate and its attachments in the prescribed format, notify the supervision engineer to go to the site for inspection 48 hours before concealment, and sign the inspection certificate. For concealed works that differ greatly from the design data, the design unit shall be notified to participate in the inspection and visa at the same time as the supervision engineer is notified.

In the process of construction, accept the spot check and key inspection of supervision engineer at any time, and provide necessary inspection conditions.

6) Engineering quality inspection and evaluation system

According to the quality inspection and evaluation standards, the quality of sub-projects, sub-projects and unit projects is inspected and evaluated to determine the quality grade.

7) Engineering quality inspection and test system

In strict accordance with the operating procedures, do a good job in the inspection and test of the construction process and the incoming inspection and test of materials. The original records of the test are true and complete. After the test is completed, the tester should fill in the test report, requiring the report to be complete and the conclusion to be clear. Finally, it shall be signed by testers and auditors, and signed by the technical director.

8) Project quality tracking card system

Carry out listed construction, establish quality tracking cards and construction quality files, record the names of construction projects and processes, operators and quality inspectors, and the project department and ZuoYeDui each keep two copies for future reference, so as to track and verify the construction quality.

9) Project quality reporting system

Report the project quality to the owner, supervision engineer and relevant management departments regularly or irregularly, and summarize the experience and lessons of construction quality in time, so that the owner, supervision engineer and relevant management departments can keep abreast of the project quality trends, evaluate the quality performance and make correct judgments and decisions.

10) engineering quality accident reporting system

Put an end to quality accidents in the construction process. Once a quality accident occurs, it shall be reported step by step according to the quality accident handling method. For general quality accidents, the chief engineer of the project is responsible for organizing construction technology, safety and other relevant personnel to review, put forward the disposal plan, and organize the implementation in time, and the safety and quality personnel will track and verify and record it. For major and serious quality accidents, the project organizes the heads of relevant departments to analyze the quality accidents, and report them step by step according to relevant regulations, conscientiously implement the disposal plan of the superior competent department, and punish the relevant personnel responsible for the quality accidents according to relevant reward and punishment measures. At the same time, summarize the lessons of quality accidents and formulate measures.

1 1) engineering protection system

The simultaneous construction of various disciplines has great interference with each other. In the process of construction, it is very important to protect the completed project. Before acceptance and delivery, necessary protective measures shall be taken for the completed project to ensure its integrity.

12) project quality self-inspection and mutual inspection system

Each working procedure and each construction team shall designate a special quality director. The construction team shall conduct self-inspection after completing the construction process. Self-inspection shall be carried out according to the acceptance criteria and construction work instructions, and recorded. There are inspection items and installation requirements in the records. The installation process is divided into stages (or parts), and each stage is signed by the installation personnel, inspectors and inspectors. After inspection (or spot check) by the supervision engineer and technicians, the next stage (or part) can be installed. The record shall be made in duplicate, and its format and division of engineering stages (or parts) shall be put forward in the construction organization design, and can only be used after being approved by the owner.

The construction personnel of the next working procedure shall verify the previous working procedure, and have the right to require the construction personnel of the previous working procedure to correct the unqualified items found before construction, and record them in the shift-over log.

After the completion of sub-projects, sub-projects and unit projects, each shift shall be inspected by full-time personnel in accordance with relevant standards such as Code for Construction and Acceptance of Underground Railway Engineering (GB50299- 1999), Quality Inspection and Evaluation Standard for Railway Electric Traction Power Supply Engineering TB 1042 1-2000 and design documents.

13) engineering quality and technology management system

Determine the technical responsibility system of the project chief engineer and technical director, conscientiously implement the design intent during construction, and organize the construction according to the design documents and the requirements of Code for Construction and Acceptance of Underground Railway Engineering (GB50299- 1999) and Quality Inspection and Evaluation Standard for Railway Electric Traction Power Supply Engineering TB 1042 1-2000. Master the design requirements, construction technology and construction methods, strengthen on-site monitoring and technical guidance for key working procedures and key points, and strictly implement the following systems in on-site construction technology management:

(1) joint review of design documents and drawings: design optimization system: after receiving the design documents and drawings provided by the owner, the chief engineer of the project department will organize technicians to read them carefully, understand the design intent, clarify the technical requirements, and organize on-site inspection to check whether the drawings meet the site conditions. Classify and summarize the drawing problems and report to the owner and supervision engineer. The owner or site supervisor shall organize the design and construction unit to optimize the design through on-site verification, and allow the designer after the optimization procedure to implement it.

⑵ Technical disclosure system: Understand the design intent, define the technical requirements, and organize disclosure in the form of work instructions and technical disclosure books.

(3) Technical document management system: Do a good job in the management of documents and materials related to the project quality, and mark the design documents, specifications, standards and other related documents and materials used in this project as "effective". Timely distribute the received technical notices and design changes to relevant departments and operation classes, and recover invalid or invalid documents and materials to prevent misuse. After the completion of the project, the completion documents shall be handed over as required. Other documents and materials shall be filed as required.

(4) Design change handling system: the classification, procedures, division of labor and cost handling of design changes shall be handled in accordance with the relevant provisions of the owner's design changes. Change the design in strict accordance with the first approval, then change; The principle of changing before building.

5] reward and punishment system for technical work: regularly check the technical management work in the project, formulate corresponding reward and punishment measures, reward outstanding workers, criticize and punish the builders for poor work completion and influence, and make rectification within a time limit to ensure the timely, accurate and complete technical management work.

[6] Log filling and operation card system: the log records the construction progress and quality of the day in detail, as well as the relevant construction personnel. The main contents of the operation card include process construction flow, process standards, technical standards and control methods of common quality defects.

3 construction technology management

Construction technology management organization

Establish a construction technology management organization headed by the project chief engineer. The chief engineer of the project department is the general manager of the project construction technology management organization; The construction technology room is the technical management of the project, equipped with the director, professional engineer in charge, inspector, testing engineer and documenter. Team technology is the executive layer of project construction technology.

Conscientiously implement the construction technology management measures and grading technology responsibility system of our unit, standardize and standardize all technical work, and implement responsibilities layer by layer to form a top-down construction technology management network of this project.

Construction technology management system

Determine the technical responsibility system of the project chief engineer and technical director, ensure the effective implementation of new technologies and new processes in this project, and finally meet the quality standards required by national specifications, design and bidding documents. Strictly master the design requirements, construction technology and construction methods, so as to standardize and standardize all technical work. Strengthen technical research and technical guidance on key points, difficulties and key points of the project. Strictly implement the following system in site construction technology management:

1) According to the technical preparation procedures in the construction preparation stage, formulate technical measures, formulate construction technology standards, and do a good job of technical guidance in the construction process.

(1) After receiving the design documents and drawings, the chief engineer of the project shall organize relevant personnel to study, study and inspect, understand the design intent and thoroughly understand the design principles.

(2) Organize relevant construction personnel to learn the owner's documents on technical standards and requirements, and carry out construction in strict accordance with specifications, standards and design requirements.

(3) Actively carry out on-site investigation, check the construction drawings, and understand the progress of the preliminary project construction. Participate in the design technical disclosure meeting and ask the owner, supervision engineer and design unit to clarify and solve the problems found; Optimize the design under the organization of the owner and the supervisor.

(4) Prepare the project quality plan, implementation construction organization design and test plan, and submit them to the supervision engineer and the owner for approval. In the test work of this project, the relevant regulations of the state and the owner shall be implemented to ensure the orderly technical management.

5] Determine the construction scheme of major projects, prepare work instructions for each process, and make a comprehensive technical disclosure to the construction team. Before the construction of each working procedure, professional engineers should use work instructions and technical disclosure books to make disclosure to the construction personnel.

[6] Guide the construction in strict accordance with the design drawings and documents. If the design drawings are inconsistent with the construction site, report to the resident supervision engineer in time to contact the design unit for clarification and settlement, and make design changes. After receiving the formal change documents, corresponding changes can be made in the construction.

During the construction, the technical department issued the construction task list and material requisition list to each team, and the construction team took this list to ministry of materials and equipment to collect all materials. Do a good job in the statistics of engineering quantity and material consumption, and provide reference for relevant departments of the project department.

2) Seriously implement the design documents and the current national technical standards, specifications and inspection standards. Strictly implement the owner's relevant regulations on construction management during construction.

3) Do a good job in project quality control.

(1) Strict engineering inspection and test system. In the inspection and test work of this project, the relevant program documents of ISO9000 quality assurance system of our unit shall be strictly implemented.

2. Strict "double three inspection" system. After the completion of each working procedure, the construction of the next working procedure can only be started after the supervision engineer, quality engineer and * * * technicians have passed the acceptance.

(3) Before the concealed works are concealed, the project quality engineer shall check them first, fill in the corresponding inspection sheet after passing the inspection, and report it to the supervision engineer for inspection; Engineering concealment can only be carried out after the supervision engineer has passed the inspection and signed for confirmation.

(4) Do a good job in technical management of the whole construction process. In the early stage of construction, focus on the construction preparation, do all the preparatory work well, and ensure the start of construction on time; In the stage of engineering construction, focusing on construction quality, construction progress and network plan, paying special attention to the connection of key processes and the cooperation of related processes, ensuring the realization of network plan and ensuring the excellent quality of the project at one time; At the completion stage of the project, focus on the completion documents and acceptance delivery, do a good job of finishing the project to ensure timely completion and delivery.

5] Organize the model project construction in strict accordance with the process standards, and be strict with every construction link and every construction process after the project starts, so as to have a model for each piece, laying a good foundation for creating high-quality projects.

[6] Set up a QC team to tackle key problems according to the key and difficult points of the project, carry out activities according to the progress of the project, and make complete records.

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