Highway mechanical and electrical engineering construction quality assurance research?

What is highway electromechanical engineering construction quality assurance research? To how to understand? Please see the article of Zhongda Consulting editors.

Transportation infrastructure construction, engineering progress and engineering quality are one of the key control content, while the speed and quality is seemingly contradictory to the two aspects, so from the interrelationship between the two, a specific analysis of highway engineering construction process problems, and explore the engineering control measures, I hope to be able to provide a little reference to the study of highway engineering project management.

With the continuous growth of our country's economy, the highway gradually develops to become the first choice of people's daily traffic and travel, and the quality of its engineering construction, will be directly related to the safety of our travel, however, the quality of engineering construction and the progress of the project is a mutual constraints, mutual influence, the two are the relationship of opposites and unity, if you accelerate the progress of the project, will inevitably affect the quality of the project construction, and if you strengthen the Engineering quality control, it may cause delays, so how to deal with the relationship between the two is particularly important. Highway electromechanical engineering system is divided into six major parts, which are monitoring system, communication system, toll collection system, low voltage power supply and distribution system, lighting system, tunnel electromechanical engineering system. For the highway project, the general mechanical and electrical engineering are completed at the end, mechanical and electrical engineering construction is faced with the construction period is infinitely compressed, the construction quality is difficult to ensure the embarrassing situation. This paper analyzes and researches for this contradictory problem, hoping that it can provide some reference to the engineering design and construction units [1].

1 interaction mechanism

The quality assurance of engineering projects and engineering progress is the unity of opposites, the antithesis is manifested as follows: if the owner side in order to pursue the quality assurance, must ensure that the engineering progress is reasonable, and if the owner side requires faster engineering progress, and does not provide the corresponding construction interface, did not invest the necessary funds, it is inevitable that affects the quality of the project; unity is manifested as follows: If the project design is more perfect, can make the overall coherence of the project is better, it is possible to shorten the duration of the project, even if it is to improve the quality of the project requirements caused by a small increase in the duration of the project, but also can reduce the maintenance and rework for the overall acceptance of the project through the time to fight for.

2 main problems

2.1 electromechanical engineering and other engineering design interface is not clearly divided

[2] The main design of the highway is generally designed by the civil engineering design unit to complete, and electromechanical engineering is usually as the last stage of the main project of the ancillary projects to design and construction, but because of the electromechanical engineering and civil engineering, housing engineering there is a big difference between the overall design of engineering is difficult from the electromechanical engineering to the design of the construction of the project. The overall design of the project is difficult to divide the interface from the perspective of electromechanical engineering construction. In addition, the mechanical and electrical engineering design unit in the engineering design, often only from their own point of view, the civil engineering, housing construction to put forward some of their own design and construction requirements, these requirements were for the various parts of the mechanical and electrical engineering, sometimes mechanical and electrical engineering design unit of the internal communication is not enough to put forward their own design and construction views, will lead to the construction stage with the design of the inconsistent problems.

2.2 Owner of the various departments of the management interface is not clear

Electromechanical engineering involves more specialties, such as mechanical, electrical, communications, computers, lighting and many other technical fields, specialized technical, difficult, systematic and functional requirements are high, during the construction period of the owner's management of the division of labor of the different departments, and the interface between the various departments is not clear, management is more confusing. Very clear, the management is more chaotic, which will have a certain impact on the quality of electromechanical engineering construction, so in the consideration of electromechanical engineering on the basis of systematic, but also the management of the management interface of the various management departments are clearly divided.

2.3 Construction stage arrangement is unreasonable

The construction stage of the project is fixed, the construction process is based on the actual arrangement of the project, it must go through the design, procurement and production, installation and commissioning, commissioning, handover and acceptance and completion of the stage, each stage of the work must be sufficient time as a guarantee, can not be due to the phenomenon of catching up with the project progress and the phenomenon of jumping steps. As a part of the highway project electromechanical engineering is also so, electromechanical engineering construction needs other projects to provide construction interface (such as civil engineering, pavement, housing, etc.), and highway traffic must be completed after the completion of the construction of electromechanical engineering, so sometimes in order to open to traffic as soon as possible, in the completion of the main project, often unlimited compression of the electromechanical engineering period, resulting in quality problems.

2.4 Construction personnel quality impact construction quality

A high quality highway project, engineering design is fundamental, construction materials is the basis, and the quality of construction personnel is an important factor, the quality of construction personnel will be strong construction personnel according to the actual situation of the project reasonable arrangement of construction procedures, can be in a relatively short period of time and good and fast completion of this stage of work, the construction staff will have a strong quality of work, the quality of construction personnel, the quality of construction personnel, the quality of construction personnel, the quality of construction personnel, the quality of construction personnel is an important factor, the quality of construction personnel is an important factor. Strong business quality of the construction personnel heart clear this stage of the construction of the key points and difficulties, will be this stage of the difficulties carefully and carefully, focus on solving, and a construction experience or low business quality of the construction personnel, may be due to his mistakes construction problems, which led to delays in the construction period, the emergence of safety hazards.

3 Measures for quality control of electromechanical engineering

3.1 Reasonable division of electromechanical engineering and other engineering design interfaces

The above can be seen that the electromechanical engineering and other engineering design interfaces are more confusing and less systematic, so the design interfaces can be summarized into three aspects [4][5]. (1) electromechanical engineering and line main engineering interface division of communication pipeline construction drawing design by electromechanical design unit to complete, the main civil engineering design unit to provide timely and up-to-date information. Bridge structures set up on the outside equipment foundation location, stress conditions, the installation of pre-buried parts and other technical information, the main body of the project design unit in the design of the structure together with the completion of the foundation and pre-buried parts of the design and measurement of the number of projects.

(2) electromechanical engineering and building engineering interface division building design unit is responsible for monitoring the design of the center and room, before this electromechanical design unit should provide detailed design requirements, including indoor layout, indoor environment, equipment dedicated power supply and grounding requirements, as well as the cable into the indoor manhole, the cable crawler, the location of the special distribution box, the cable connection between the room required ditch, groove, pipe, hole size and material and other detailed requirements. Detailed requirements for cable connection between each machine room, such as trench, trough, pipe, hole size and material, etc., and if necessary, provide schematic diagrams. Comprehensive wiring of telephone line and computer network of toll station room is completed by building design unit, toll station, service area, high and low voltage distribution cabinet, generator, etc. is completed by electromechanical design unit, field area, building and indoor lighting as well as lighting design of toll canopy is completed by building design unit, lighting design of toll plaza is completed by electromechanical design unit, transformer substation room of toll station is designed by building design unit, and electromechanical design unit is completed by electromechanical design unit. Provide substation layout plan, put forward the requirements of the indoor environment.

Toll station building area power supply lighting pipeline by the building design unit combined with the courtyard road green unified design. Electromechanical design unit should provide electromechanical engineering field pipeline general schematic, general schematic must be clear from the toll plaza side wells to the engine room building bureau in front of the manhole, plaza side wells to the power distribution room and the bureau in front of the manhole to the power distribution room of the number of pipe holes, specifications and material requirements, and clear manpower holes geometric dimensions, waterproofing and setup requirements, pipeline specific route and manpower holes to set up the location and number of units by the housing construction design. (3) electromechanical engineering internal interface division electromechanical engineering internal communication, monitoring, charging, power supply and distribution lighting interface between the systems by the electromechanical design unit in the preliminary design revision and construction drawings to further clean up and clarify the design, so that the division is reasonable, the responsibility for clear and easy to construction management.

3.2 Standardize the design phase of highway electrical and mechanical engineering

The current "highway engineering capital construction project design document preparation methods", only from the macroscopic construction of highway engineering regulations, so the proposal for the traffic department is to be able to design the highway electrical and mechanical engineering part of the design of the compilation alone, in the preparation of the process of clarifying the various design phases, construction stage The content of the

3.3 Do a good job of the various stages of the schedule, accurately grasp the design timing

Highway geological situation is complex, especially the mountainous areas of the highway features the most significant, and thus some of the design of bridges and tunnels in the construction of more changes, which leads to mechanical and electrical engineering of the pre-design and construction of the later stage of the existence of a number of inconsistencies. From this point of view, electromechanical engineering pipeline engineering construction plan design should be completed in the main project half, until the basic molding of various structures or construction is completed, according to the main project design changes and construction, and then pipeline engineering construction plan design, so as to avoid premature pipeline engineering construction plan design, later but according to the main project construction changes and changes in the trouble. Of course, mechanical and electrical engineering design work can not start too late to avoid delays in the construction period, so the need for engineering designers to make reasonable arrangements according to the overall implementation of the project plan, in order to achieve a seamless link between mechanical and electrical engineering and the main project.

3.4 Reasonable division of the owner's management responsibilities

Highway mechanical and electrical engineering in the power supply and distribution and fire protection system is a part of the construction management is often intersected, the main reason is that these two systems belong to the electromechanical and civil construction of the two departments of the management, and the two departments of the authority is not clear, the lack of communication between each other, resulting in the two systems are sometimes no one cares about, but also sometimes there is a phenomenon of overlapping management, and once the project is completed, the project will be completed. The phenomenon of overlapping management, and once these problems occur, it will let the design and construction units are at a loss, so it is recommended that the owner can be reasonable interface division.

3.5Cultivate the construction and management personnel business quality and concept

Engineering construction personnel's business quality determines the quality of the project, and engineering management personnel's business quality is the guarantee of high-quality highway project. To realize the unity of the quality and progress of engineering construction, must ensure that all construction personnel business quality is good, can complete the established stage goals on time, and the key parts of the project stages of construction to do fine. At the same time also want to cultivate on-site management personnel's management concept, although the quality and safety and the progress of the project there are contradictions, shorten the construction period means to reduce the project investment, and in order to ensure the quality and safety of highway projects must ensure that the project investment, so the project management personnel need to properly deal with these contradictions, to eliminate the hidden dangers of the human factor caused by the safety of human beings, all of which require a high quality of business, strong ability of the Project management personnel.

4 Conclusion

Progress control throughout the entire highway project construction management, it restricts the quality of the project to achieve this goal, is the need for project builders and managers always pay attention to the means of control, the difficulty of this work will be increased because of engineering changes. The highway project construction up cycle is long, large investment, long service life, especially for the economy to promote the role of the larger, so in China's rapid economic development today, how to find a balance between the quality assurance of highway projects and progress management is the current need to continue to explore the issue.

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