Tuesday, December 21, 2010

【 Weak current College 】 on hydropower construction project owners to control the quality of the project



Summary: the quality of the project, the project correctly is crucial. The quality of the project, not only seriously affected the contractor's reputation, will also affect project owners of economic benefits, while also reflecting the quality of supervision. Therefore, the quality of the project is involved in projects of common interest of all parties. Improve project quality control, the parties shared bounden duty. However, in practice, since the parties involved in the project location is different, each in so far as the focus of attention varies, as one of the main tasks of the owners is to take the quality control as a link, to coordinate the design, supervision, construction unit three relations, enhanced design, supervision, construction quality control to ensure that projects meet the desired objective.
Keywords: hydropower construction project owners, engineering, quality, control
First, the owners of hydropower projects are the main tasks of quality control
The quality of the project, the project correctly is crucial. The quality of the project, not only seriously affected the contractor's reputation, will also affect project owners of economic benefits, while also reflecting the quality of supervision. Therefore, the quality of the project is involved in projects of common interest of all parties. Improve project quality control, the parties shared bounden duty. However, in practice, since the parties involved in the project location is different, each in so far as the focus of attention varies, as one of the main tasks of the owners is to take the quality control as a link, to coordinate the design, supervision, construction unit three relations, enhanced design, supervision, construction quality control to ensure that projects meet the desired objective.
Second, the owners of hydropower construction project quality control of content
The quality of the project is the construction of hydropower projects of investment efficiency to achieve the fundamental guarantee of the quality control is to ensure that project quality is by far the most effective way, and throughout the whole process of construction. To ensure the quality of the project, the landlord may, according to the following content on hydropower construction project quality control.
1. forecasting a construction period, and on all the factors affecting the quality of the construction project decision-making stage of planning.
2. Select qualification, experience and reputation of qualified design, construction and supervision units, signed a contract, contract terms must be related to quality and a clear quality.
3. do a critical technology programme, design documentation, the examine construction organization plan.
4. in the implementation stage of quality control, such as the checkup and technology gives the low-down, construction preparation, material equipment supply and construction quality control.
5. do the quality information feedback, through the Organization and coordination means, comprehensive quality management.
Third, the owner of the design, supervision, quality control of construction of the hydroelectric project acceptance from decision-making to the commissioning, is divided into four phases, namely:
(1) engineering project initiation phase, (2) the design stage, (3) the construction stage, (4) engineering acceptance phase. In these four stages, with the exception of the first stage and supervision, construction involves less, the other three phases are involved, and one of the important link is quality, from the design of quality, supervision and quality to the construction quality of the final freezing into the quality of the project. And at all stages, industries primarily targeted at different times in different key, take the appropriate quality control methods, to the final completion of the construction project quality control to achieve the desired quality goals.
1. the owner of the design of quality control of design work is project based, provide timely and accurate design drawings, process engineering major technical problems, to guarantee the quality of the project is of great significance. Owners on design quality goal is: should a "unified planning and reasonable layout, local conditions and comprehensive development, supporting construction" approach, to be applicable, rational, economical, disaster prevention, security. To achieve this goal, the following steps should be taken to control the quality of the design.
(1) according to the project approval document, request the relevant information, prepare a design framework or plan competition files, organization design competition in inviting or programme, the evaluation design.
(2) exploration, design, scientific research units of the qualification examination, the optimization of exploration, design, scientific research units, signed a contract and the contract to implement, and enhance the quality of the implementation of the contract.
(3) design review. Control the quality of design, review the design of programmes to ensure that projects are designed to comply with requirements, design framework in line with the State about the project's principles and policies, in line with existing design norms, standards, compliance with national conditions, technology, advanced technology, to give full play to the projects of social, economic and environmental benefits.
(4) design drawings of the audit. Design drawings is design work and construction of a direct basis. Therefore, the final design stage quality control of design drawings to be reflected in the review.
Preliminary design drawings for approval. Preliminary design is a project of technical programmes. The review focused on the technical design meets the requirements of the general scheme, whether the project decision-making stages in quality standards.
Technical design drawings for approval. Technical design is the preliminary design of the technical programmes. The review focused on the professional design conforms to predetermined quality standards and requirements.
Construction drawing design review. Construction drawing is on the equipment, facilities, buildings, pipelines, and other project object's size, layout, structure, selection, correlation, construction and installation of quality requirements of detailed drawings and instructions, is the construction of a direct basis and thereby also the design stage of quality control of a key. Review of the key is to use the functionality meets the quality objectives and standards.
(5) construction and final acceptance. Owners Organization Design Unit for construction, the task has two aspects: first, the construction process design problem, resolve construction units, owners of quality issues; and second, design changes and deal with budget modifications. Final acceptance is both the last examination of construction quality, but also to the finalization of the quality of design. Acceptance period found in design or construction of quality problems, there is aQuality problems elimination period, qualified design and construction units eliminate quality issues deadline, the deadline to complete. 2. the owners of the supervision of the quality control of project construction process to perform project supervision system, is the existing hydropower construction market toward standardized management, an important system and with internationally accepted project management methods. Water and electricity project construction supervision of one of the main content is to project construction quality control. In order to be able to guarantee the correct implementation of the project, as well as the supervision unit will be able to effectively implement processes for quality control, the landlord should be entrusted with the supervision of the contents of a specific and given appropriate powers of supervision. Quality control, to be entrusted with the supervision of the following:
(1) to supervise the building contractor, sound construction management system and quality assurance system, and to monitor implementation.
(2) check the raw materials of engineering use, semi-finished products, finished products, components and equipment, and carry out the necessary testing and monitoring.
(3) supervision of contractors units in strict accordance with the technical standards of construction and design documents, control the quality of the project. Important works to supervise the contractor to implement preventive measures. (4) inspection of construction quality, on the subtle works of reinspection visa, participation in the project quality accident analysis and processing.
(5) tissue engineering phase of the acceptance and the completion and acceptance of, and acceptance of construction quality assessments made.
To ensure that the supervision unit has the capacity to carry out supervision contracts, property owners must be qualified supervision units, optimum supervision units. On this basis, the owners of the specific implementation of the above Commission content process audit control, to engineer better performing supervision Commission contract its duties, to the construction quality control purposes.
Owners of supervision authority control, primarily through the supervision of monthly and on-site supervision. Supervision of monthly mainly reflected the content of the project construction quality control. It includes: Unit works acceptance; this unit works once acceptance rate statistics; unit works excellent rate control charts; partial works acceptance test; construction; construction quality accident; suspension; the current project quality directives analysis (including production engineering quality problems and quality measures list). On-site supervision is owners onsite management personnel (for example, you can set up on-site quality control Department), under the supervision of the quality of the report reflects, through a site survey, to supervise the supervision and construction unit to take corresponding measures of quality problems, common good quality control to achieve the expected goals of quality control.
3. the owners of construction quality control of project owners in pre-construction, should open tenders, selection and project tasks to meet the needs of the contractor and signed project contracts. Owners on construction of concrete quality control is delegated supervision. Supervision by project owners and contractors signed project contracts, on a comprehensive supervision of construction projects, the contractor's quality management activities completely in the control of effective quality control. However, in practice, some of the problems is not a project management and construction unit should be able to solve, you also need the owners done. Owners in the construction stage of quality control of mainly has following several aspects:
(1) determine the project quality control process control factors affecting quality (including personnel, materials, machines, equipment, construction of the order and method, etc.). Project quality control process clearly, further improvement of the quality supervision organization, such as owners can set up quality management Department is directly responsible for the supervision and supervision and construction units of mass behavior, and to coordinate the relationship between them.
(2) quality tests, the implementation of the inspection method. Quality inspection methods include: the operator's post, the mutual seizure of teams, the process of handing over of the inspection and quality inspector, as well as owners, supervision, design and administration for quality supervision and inspection departments.
(3) upon Division of engineering, concealed engineering organizations acceptance. On the different types of partial engineering and concealed work, timely organization departments for acceptance. Different types of partial engineering engineering content, quality inspection and assessment standards, should be strictly in accordance with national standards, standards and industry standards by the MoE organizations acceptance.
(4) review of quality issues (accident) reports, participation in on-site quality supervision sessions. When the construction has the quality problem (accident), should be timely attention to prevent evoked major quality accident analysis, organization special causes and characteristics, and a review of supervision, and construction units completed engineering problems (accident) reports and applying single.
More than just design, supervision, construction of these aspects on the hydroelectric project owners how to project construction quality control. In fact, in the construction of hydropower project, the quality control throughout the entire process of building the project, you need practical work on the further conclusion,.

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