the quality of decoration construction in engineering construction has a great influence not only on the evaluation of engineering quality, but also on people's use and residence. The appearance of decoration quality problems may cause inconvenience in use and safety problems in life, and the rectification and repair of decoration projects will also bring great trouble to users and owners. In the supervision work, how to ensure the construction quality of the decoration project is particularly important. In order to ensure the quality of the decoration project, the construction supervisor should control the following aspects:
The quality of the decoration construction in the project construction has a great influence not only on the evaluation of the project quality, but also on the use and residence of people. The appearance of decoration quality problems may cause inconvenience in use and safety problems in life, and the rectification and repair of decoration projects will also bring great trouble to users and owners. In the supervision work, how to ensure the construction quality of the decoration project is particularly important. In order to ensure the quality of the decoration project, the construction supervisor should do well the following aspects of control:
1. The quality control supervision in the decoration project must take active control and implement effective control measures in all directions and in the whole process.
1. Before the renovation project starts, the blue prints.the design system shall be implemented. Without blue prints.the design, construction shall not be allowed, so as to reduce mistakes, leaks, bumps and defects in the drawings as much as possible, and implement the joint responsibility system for drawing quality, so as to enhance the sense of responsibility of all parties involved in the blue prints.the design, and prevent the blue prints.the design from becoming a mere formality, resulting in changes and rework affecting the project quality.
2. According to the commitment in the bidding documents of the project and the characteristics of the project, the detailed rules for the implementation of the supervision shall be worked out to ensure that the quality assurance system of the supervision itself is complete and the system and management structure are sound.
3. For the construction of key working procedures of decoration engineering, formulate special supervision implementation rules, and require the contractor to prepare a special construction plan.
4. Carry out the model guiding system of each decoration process, and carry out special technical disclosure on various common quality problems that are easy to occur in strict accordance with the requirements of the Manual for Prevention and Control of Common Quality Diseases of Engineering. Review the construction work instructions and various professional construction plans of the construction unit, and standardize the operation of the model guide from the source and the system. According to the construction drawings of the project, the decoration project is divided into disciplines and units, and the sample items are listed. The implementation place, location, time and acceptance criteria of the sample are clear, and each sample room, such as "masonry sample room", "plastering sample room", "brick-inlaid sample room (wall)", "door-window sample room" and "suspended ceiling sample room", etc., is well prepared, and then the spreading operation is carried out from point to area.
5. Do a good job in the control of decoration materials. Decoration projects generally involve many kinds of materials. The specifications, varieties and production of the determined materials should meet the requirements of design drawings and construction acceptance specifications, especially the materials that meet the requirements of the National Code for Indoor Environmental Pollution Control of Civil Buildings and meet the green environmental protection standards. For the determination and control of materials, the method of determining the plate by looking at the sample of materials is adopted. The required materials must be recommended by the construction unit and organized by the supervisor, and the parties involved in the construction will review and determine the process of sealing the plate. The control means of supervising the main raw materials can be controlled in the following four stages: (1) control before ordering; (2) Control after purchase; (3) Control of on-site preparation materials; (4) Control of materials used on site. Although individual materials meet the requirements of material specifications and pass the field sampling inspection, the final comprehensive index may not meet the requirements of indoor environmental pollution control specifications due to large dosage, such as granite, large pistil board and other materials. In addition to the above control methods, measures should be taken on design drawings and construction technical measures to avoid this situation.
6. Check whether the personnel and machinery invested by the construction unit can meet the construction progress and quality requirements. The quality of the personnel invested by the construction unit is the key to affect the quality of the decoration project. Therefore, it is necessary to require that the types of work should be complete, and the ratio of big workers to small workers in each type of work should be limited to some extent. Special workers must hold relevant certificates, and the main work must be checked by skilled skilled workers. Equipment should be complete and its performance should be kept in good condition, so as to ensure the processing quality of construction materials, and mechanical equipment should meet the construction requirements. Generally used machinery and equipment construction units must pass self-inspection and pass the self-inspection before they can be put into production. Measuring, testing and testing instruments and equipment, in addition to the accuracy and performance to meet the engineering requirements, but also need to be verified and approved by legal departments. In addition to the normal use of mechanical equipment, there should be a certain number of spare equipment to ensure the continuous operation of the decoration project and promote the quality of the decoration project. The above two inspections cannot be ignored.
7. Define the quality control target of decoration project, strictly follow the quality target requirements of the contract, start with the quality control of each working procedure, and organize the establishment of a quality control team to organize the management of project quality. In particular, the common quality defects should be carefully studied, and practical prevention measures should be worked out, so as to put prevention first. And quality control personnel at all levels in the construction unit will attend technical seminars to implement the measures for the workers' team. At the same time, the application, control and supervision of new technologies and new processes should be strengthened to ensure the full realization of quality objectives.
second, take effective management and means to supervise the quality of decoration projects.
1. Supervisors shall conduct regular or irregular supervision activities on the parts or processes under construction at the construction site, and instruct the contractor to correct any problems found. In order to reduce the occurrence of quality defects and ensure the quality and progress of decoration projects.
2. Check and accept the handover between concealed works and working procedures, and implement the on-site supervision system for key parts to ensure that the construction of key parts is well controlled in the whole construction process.
3. Check the positioning and setting-out of the project by means of measurement before the project starts; Check the axis and elevation of the project during construction; When the project is completed and accepted, check the axial displacement and elevation of each part and measure its geometric dimensions. For the quality acceptance of concealed works, subdivisional works and divisional works, the contractor shall apply for supervision acceptance after passing the self-inspection, and the supervision engineer shall conduct written and on-site quality inspection.
4. The quality evaluation of independently tested items or materials must be carried out after obtaining data through witness sampling and witness sampling. It is not allowed to evaluate its quality only by experience, visual inspection or sense.
5, in the process of key parts construction, supervision by supervisors at the scene.
6. The unit applying for starting work without the approval of the supervisor can't start work, and the process without the signature of the supervisor can't be hidden. The next process can't be carried out without the signature of the supervisor, and the contractor can't get payment without the payment visa of the supervisor, which ensures the effective control and coordination of the supervision engineer.
7. The supervision engineer shall make full use of the mandatory documents, issue written instructions on any matters according to the contract specifications, and urge the contractor to strictly abide by and carry out the written instructions of the supervision engineer.
8. Hold regular supervision meetings, solve and coordinate the problems existing in all parties of the construction unit in time, put forward the problems that the construction unit should pay attention to, and eliminate the problems that the construction unit affects the decoration quality.
9. If there are various technical problems in the construction, if necessary, the construction unit or relevant experts can be invited to participate to coordinate and solve the technical problems in the project. For complex technical problems, the chief supervision engineer can hold an expert meeting and conduct a special discussion. According to the expert opinions and contract conditions, the chief supervision engineer will make a conclusion. This can reduce the supervision engineer's one-sidedness in dealing with complex technical problems and avoid mistakes.
11. The supervision engineer should make full use of the right to audit and sign the payment given by the contract. If any project behavior of the contractor fails to meet the satisfaction of the supervision engineer, he should have the right to refuse to pay the project progress payment, so as to restrain the contractor from completing various tasks seriously according to the conditions stipulated in the contract.
11. When the contractor ignores the instructions of the supervision engineer and carries out engineering activities in violation of the contract conditions, the director will meet the main person in charge of the contractor, point out the serious problems and possible consequences of the contractor in the project, and propose ways to save them. If you still don't listen to advice, the supervision engineer can take further sanctions.
12. The change requirements and technical verification shall be strictly reviewed and reported to the owner and design unit for approval.
13, using statistical means, through Pareto Diagram, Causality Analysis Diagram, Quality Histogram, Control Diagram, etc., analyze the causes of quality fluctuation and variation, judge whether the construction is normal or not, and evaluate the construction management level.
third, the quality control after the completion of each construction process of the decoration project.
1. urge the construction unit to check the handover and cross-working procedures of the previous working procedure that affects the quality of decoration works. First of all, we must carry out a detailed inspection from the basic treatment of the required decoration. Such as concrete floor surface and masonry surface, if there are problems in the quality of the previous process, they must be dealt with first. If the surface is uneven and there is deviation in horizontal and vertical aspects, if it exceeds the allowable deviation, it should be dealt with separately. If the individual parts are uneven or the verticality can not meet the requirements, it can be chiseled. If the overall deviation is large, such as the verticality of individual masonry walls can not meet the requirements, it should be reworked, and if the structural concrete surface has great influence, it should be reported to the designer for processing. Therefore, the renovation project must be started after the acceptance of the previous process, and the construction of the next process can only be carried out on the basis of handover and cross-process inspection. The supervision engineer of the completed project should organize the contractor to inspect and evaluate in time, and deal with the defects. Review the completed project and check the quality of finished product protection.
2. For the acceptance of inspection lots, subdivisional works and concealed works, the contractor must fill in the Inspection Sheet after passing the self-inspection, and notify the supervisor in writing for acceptance. Without written notice, the acceptance will not be arranged. For acceptance of divisional, sub-divisional or special projects, the contractor must organize internal acceptance, submit a written acceptance application and complete acceptance data to the supervisor, and the director shall organize acceptance data verification, structural safety and functional quality inspection, visual quality inspection, and submit a quality evaluation report, and then the director shall organize qualified personnel of relevant units to accept it. After the completion acceptance of the unit project, the contractor shall organize the inspection and evaluation, and submit the Completion Report and complete completion data signed by the legal representative and technical director to the supervision unit.
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