Importance of construction organization design
Construction work in the construction process, the construction organization scheme will not only directly affect project quality, duration and safety also has an important impact in the construction process. Construction organization projects and mentoring in
construction of key technical and economic documents. Can regulate the construction people, machines, materials, environment, technology, equipment, construction, installation, management, production and other conflicts , monitoring and control of the construction organization design , scientific and reasonable assurance the completion of project of high quality, low cost, low energy consumption.
Project management construction management programme the importance Construction organization design is the idea of the whole construction process of engineering construction project ideas and specific arrangements, organization and management of construction work is the heart and soul. Its aim is to enable high speed, high quality, efficiency. Engineering-best results when working in construction as a whole.
1． Because of the importance of preparation of construction organization design
Architectural engineering and construction with a fixed and liquidity, diversity and one-piece, form a large and long construction period the three characteristics. Therefore, each construction engineering construction organization design of construction must be carried out. This is because other general industrial products have their own fixed, long-term application factories. Building construction is characterized by mobility, impossible to build such a plant, only when each of the construction, and establishing an appropriate, provisional, as factory construction site preparation, namely, site. Construction
characteristics and construction of single pieces of mobility features, decided to select appropriate equipment for each construction and labor organizations. Construction technology of construction method of selecting, developing programmes and labour organizations and equipment configuration, collectively known as operation capacity configuration. Construction cycle features determines the labour supply of many material, equipment and technology is a long time, which raises the total progress plan of construction material that is appropriate for the construction organization design of technology content. It can be seen that is of considerable importance in construction organization design in project management.
2 .Importance of construction organization design
Construction products as a commodity and engineering quality in project management plays a vital role in the entire construction process. Construction organization design and engineering cost of construction projects has a close relationship. Construction organization design of basic content: project overview and analysis of construction conditions, implementation plan, construction technology, construction progress plan and general plan of construction. Further economic analysis and construction preparation plans. , Scheme and construction technology in construction of more important , such as : levels of selection, selection of transport method of construction machinery, earth-moving construction method and construction method and construction technology of main structure of choice and so on , are directly affecting the estimated project price changes. In ensuring project quality and meet the owners subject to the requirements and duration requirements , optimizing construction scheme and construction technology are important measures to control investment and reduce project cost and means.
2.1 Construction organization scheme is to a large extent affect project quality, reasonable construction programme is not only to ensure that the basis for successful completion of the construction, safety basis. Construction organization design is an important part of construction design documents, is the main basis for preparation of the project investment budget and preparation of tender documents, the main frame of reference. Therefore, good job in construction organization design, correctly determine project cost, reduce engineering investment, thus enabling to control project cost would have a very important role.
2.2 Construction organization plan of construction activities is an important means of implementing scientific management, it has the dual role of strategic deployment and tactical arrangements. It reflects the requirements of implementing the capital master plan and design provides all phases of construction preparation, coordination of construction during the construction project, the construction trade, the relationship between voluntary. Construction organization scheme must be according to the product's characteristics and requirements, based on existing and possible securing construction conditions, realistic, determine how the basic combination of various factors of production, does not solve problems, it is impossible for any production.
3 Construction design calculation and analysis of indicators Construction organization design should be to establish which indicators are not unified, calculation or specification. Because it is the evaluation of construction organization design of the overall assessment of the effectiveness and the status of implementation, as well as project construction units ( project ) production and management levels and to test the effectiveness of the basis. Must be given to, and made the following comments.
3 .1 Index system. Sets as far as possible reflect the construction organization design of index system of the target level of, and to facilitate the evaluation, examination, implementation.
3 .2 Index calculation. (1) construction preparation phase. Starting from site preparation to the official project for all time. (2) project duration. Arranged by unit engineering construction progress plan of construction. (3) labour imbalance coefficient. During peak and the average ratio of the number of. (4) reduce the cost amount. Technical measures to reduce the cost of results. (5) reduce the cost rate. Cost reduction percentage of total contract costs. (6) construction mechanization. Mechanical construction completed production and engineering contract cost ratio. (7) the level of industrial construction.
Precast factory ( sand excavation, quarries ) completed production and engineering contract cost ratio. (8) the investment proportion of temporary works. All temporary works investment and engineering contracts cost ratio. (9) cost of temporary works. All temporary works cost recovery fees and contract cost reduction ratio.
3.3 Indicator analysis. Construction organization design of indicators as compared to similar projects historical actual levels, can assess the impact construction organization design; different indicators of construction organization design in contrast to optimum programme; analysis of the weighted numerical indicator of previous similar projects could serve as a reference for future bidding again.
4 Management of construction organization design
With the establishment of the Socialist market economy , building increasingly fierce market competition , objective conditions on the construction enterprise requirements getting higher and higher. Not only in terms of technical equipment, quality of personnel, organizer of construction put forward higher requirements, but also in engineering economics and management work engineering budget and settlement also faces new challenges. Strict construction market situation, some construction companies do not have a positive response , had no update on staff expertise and training. Science and technology management level quite backward. And for the preparation of construction organization design of audit did not attract enough attention. Therefore, there will be several common scenarios:
4.1 Before commencement of construction organization design of auditing has not been prepared: not to engage in the construction of floor plans , materials of rubble lying around. Earthwork out of transport, machinery and equipment, quality of labor demand planning, engineering, construction without guarantees of security. Caused the serious waste of idling , lower levels of management.
4.2 Is the professional preparation of construction organization design: to cope with higher authorities and supervision units, the customer shall check and construction construction organization design for information or addendum. Because the information simply don't know about now, construction management and leadership has recently arranged, had to make up indiscriminately to deal with.
4.3 Low levels of construction organization design preparation: some construction units, do not understand the importance of construction organization in the construction process, write about the construction process, draw a floor plan, project schedule , is considered to be construction organization plan.
4.4 Abandoned technology economy: a considerable number of units at the time of preparation of construction organization design in construction enterprise. Only importance to the construction of the project of technical measures. Content does not take into account economic indicators , leading to projects completion settlement of disputes continue , causing economic losses.
Therefore, the management of construction organization design: (1) the introduction of dynamic management
Construction process, inevitably will encounter unexpected problems, such as impact, natural factors such as design changes, change field programmes of each stage of the construction process adjustments must therefore be based on dynamic management of engineering field, not suitable for construction organization design section must be modified, supplemented, optimization, to reach the established goal.
(2) Implementation of hierarchical management
Project law construction of introduced, management layer and job layer separation, and fixed workers gradually reduced of situation, will leads total contract and points package of phenomenon, bid units from past of directly management, and directly technology low-down, becomes indirect management, and indirect technology low-down, therefore should according to construction organization design for tiered management, clear total package and points package units, and management layer and job layer of technology permission, and duties and work program.
5 ． Closing remarks
In the construction of the project, be sure to oversight and control of the construction organization design to ensure project construction in order to prevent construction organization design of formality. Progress of the construction organization design of project quality, security, strong measures of protection. In conditions of considerable resources to achieve economic benefit of the project and achieve the win-win purpose construction and economic benefit.
项目管理 施工组织 方案 重要性
3．3 指标分析。施工组织设计指标与同类工程历史实际水平相比，可以评价施工组织设计效果；不同施工组织设计方案的指标对比，可以优选方案；分析以往历次同类工程的各项指标的加权数值，可以作为今后再次投标的参考依据。 4．施工组织设计的管理
4.4要技术弃经济：相当多的施工企业单位在编制施工组织设计时。只重视施工组织当中的各分项工程的技术措施。没有考虑分项工程经济指标方面内容,导致工程竣工结算时纠纷不断,蒙受经济损失。 因此，要对施工组织设计进行管理： （1）实行动态管理
工程施工过程中，不可避免地会遇到意想不到的各种问题，如设计变更、自然因素等影响，各阶段施工进程的变化造成现场方案的调整，因此必须根据变化了的现场实际进行动态管理，对施工组织设计中不适宜部分进行必须的修改、补充、优化，以达到既定的建设目标。 （2）实行分层管理 项目法施工的推行，管理层与作业层分离，以及固定工人逐步减少的情况，势必引出总承包与分包的现象，中标单位从过去的直接管理、直接技术交底，变为间接管理、间接技术交底，因此应根据施工组织设计进行分层管理，明确总包与分包单位、管理层与作业层的技术权限、职责与工作程序。