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Supervision Practice of Installation of Electromechanical Equipment in Beach Engineering Deng Jinlu Yang Xiongxiang Li Zehai 21. Beach Hydropower Engineering Company, Panzhihua 617000; 2 Huayuan Water Conservancy and Hydropower Engineering Consulting Company, Beijing 151 is a structural installation; marked as the main mechanical and electrical equipment installation of the main transformer. Beach Hydropower Engineering Company is the engineer supervision unit. Its personnel composition mainly consists of high-level technical and management personnel of Huayuan Consulting Co., Ltd., and a large number of high-level technical and management personnel of Huayuan Consulting Co., Ltd. are established. Through the establishment of the supervision organization, clear supervision duties, pay close attention to control and coordination, carry out effective contract management for the installation of electromechanical equipment of the beach hydropower station, practice and experience of electromechanical supervision of the beach project, and improve the supervision system and related projects that are being implemented in China. The discussion on supervision is of great benefit.
0Overview The main project of the beach hydropower station is divided into three sections, including the first sub-plant and the civil and auxiliary electromechanical equipment in the main building, and the metal structure installation is marked by China Gezhouyu Group and Philip Holzman Company of Germany. The Hulktifu company’s beach joint venture undertakes; the main transformer, the main vertical electromechanical equipment and its embedded parts such as the 岱500 cut-out line equipment and the mechanical and electrical joint adjustment of the plant are 1 standard, and the hydropower bureau of China Gezhouba Group Hydropower Bureau And the beach joint venture of the Dongfang Electric Group Corporation.
The beach owner entrusted the beach hydropower engineering company 5 to be the beach supervision unit. The staff consists mainly of the personnel who are engaged in project supervision in the Lubuge project and the advanced technical know-how of the electromechanical installation from the various engineering bureaus. To solve the problem, that is, Na å—½ å³ å³ èš£åŸ½, 蚣埽, ç½… èµ£ ,, vinegar, consult the company's high-level technical and management personnel, set up the beach's mechanical and electrical installation supervision agency. During the peak construction period, Huayuan Consulting's personnel accounted for 48.2 of the total number of mechanical and electrical supervision personnel, and its senior technical management personnel served as the Ð¥ é’… é’… é’… é’… ã„– ã„– 涸鸹 涸鸹 涸鸹 涸鸹 涸鸹 涸鸹 , , , , , , , , , , , , , , , , , , , The machine is written by the department. Ren, 1 Cheng Shidai, level assistant and supervisor, age management, and other duties, played in the machine installation supervision of the beach scales, and the vertical 1 supervision organization set up according to the project management needs, deducted the arch dam project department 1 The standard plant project department is marked by the electromechanical project department. Responsible for 3 standard engineering supervision. Each project department has one engineer and one senior assistant, and has the engineering supervision department of the technical department of the office contract department. Under the direct leadership of the engineering representative, the engineer's supervision function for the contracted project is fully exercised. Its organization sets up the responsibility engineer of IlL 2 supervision. Under the leadership of the engineer, in accordance with the scope of the owner's authorization, the engineer is responsible for the overall responsibility of the subordinate department and assumes the responsibility for the supervision of the mechanical and electrical engineering project supervision contract.
The engineer is a senior assistant. In the leadership of the engineer, assist the engineer to work on his behalf, and perform the duties of the technical staff.
Received date 317 company senior engineer, mechanical and electrical engineering department engineer generation. Engaged in electromechanical technology management; Yang Xiongxiang (3) Long, male Zhejiang Hangzhou Huayuan Water Conservancy and Hydropower Consulting Company senior engineer electromechanical project department engineer on behalf of senior assistant engaged in technical consulting work; Li Zehai 1935 male. Kunming, Yunnan. Huayuan Water Conservancy and Hydropower Consulting Co., Ltd., professor-level senior engineer, factory office office, engineer generation and contractor owner consulting experts, manufacturers in the construction site between the various letters of contact window. Responsible for the management of the receipt and dispatch of various materials, and assist the engineering representative to handle his contacts with other parties. Such as the Cheng Shidai and the manufacturer on-site installation contractor design consultants to communicate with each other.
Technical Department. Assist the engineer on behalf of the installation contractor to provide design paper technical information and inform the organization of technical disclosure.
Explain the construction plan measures and methods reported by the nuclear contractor in the specification and technical requirements and the rationalization proposals submitted by the contractor.
Contracts Department. Assist the engineer to handle the contract transaction, review and approve the contractor's schedule plan, project settlement of the claim change, etc., and do a good job of checking the contract.
Supervision Department. The supervision department implements the supervision of the whole process, and is responsible for the control of the construction progress and the inspection of the construction quality, the inspection of the engineering measurement, the safety inspection and supervision, the inspection of the construction process, the acceptance of the completion of the phase project, and the timely construction of the site. Issue the necessary on-site instructions.
3 Control coordination in the process of supervision 3.1 Quality control Quality control is the focus of supervision work, and it is an all-weather system project in all aspects. The control in the prior matter is the key to the control of the quality of the scene. We mainly carry out the pre-existing technical disclosure and construction technology measures approval system from the child side. Before each individual project starts, the technical department will repeatedly exchange ideas with the technical solutions provided by the manufacturer's technical supervision and the technical measures compiled by the contractor. Due to the differences in traditional crafts and construction methods at home and abroad, manufacturers and contractors often have different views. At this time, it is necessary for the engineer to preside over the special report of the meeting. Then, the contractor is required to prepare the construction measures and Organize construction during the construction process. In any of the details of the construction process, according to the professional system continuity and integrity of the electromechanical installation engineering, the on-site supervision adopts the sub-professional system and the project is responsible for the design, installation and commissioning to the trial operation hall. Tracking supervision. Real 1 site supervision project responsibility system. The quality of the final inspection of the project is linked to the performance of the special supervision.
Establish a sound quality inspection system. After the contractor passes the inspection and only delivers the on-site supervision, the on-site supervision committee will re-examine the technical supervision with the manufacturer. After the re-inspection is qualified, it must be signed by the two supervisors, and then sent to the supervision department and the engineer. The qualified party is subject to a quality ticket veto system for valid visas. On the case of unqualified projects or construction techniques that are considered by the site supervisor to affect the construction quality, the site supervisors have the right to issue verbal instructions to stop or rework the contractor to assist the contractor in establishing an effective inspection. The payment of the price of the mouth is linked to the quality of the contractor’s construction.
E.g. The core of the beach hair twister is a disc structure. The key to its assembly is the control of the quality of the weld. The first center body assembly, the engineer on behalf of the basic installation center body assembly and other key processes, a special meeting to discuss the construction plan. The center body is welded in the whole scale, and each class supervisor and the construction personnel draw the temperature control and deformation curves in time before the shift. The on-site supervision class followed the work, and even on-site supervision during the second half of the insulation process.
Every morning at 800830, the assistant manager of the supervision department, on the spot, together with the manufacturer's technical supervision contractor technicians to analyze the data, discuss the improvement measures, and the core role played by the factory supervision, thus ensuring the overall success of the welding.
3.2 Progress Control 1 Investing 4 No key construction plan that can be implemented as planned. For example, in the construction process of the main building of 1 Beach, the volute welding and hydrostatic test of 6 units are two key processes that restrict the progress of the project.
With the support of the owner, the supervisor took two measures and required the contractor to invest more human resources, from the construction of the station to the two progressive, and then to the flow operation; 5, the improvement of the construction plan should be undertaken. The owner added the corresponding construction equipment and invested several hundred thousand yuan to increase the bulkhead for the hydraulic test from one to two. Due to the improvement of the construction plan and the close match of the construction, the state of the 6 units! The construction of the project is ahead of schedule. 4. For example, in order to meet the owner's proposed power generation plan for the 6 units of the beach power station, the 231 program will be put into operation in 1998, and 3 units will be put into operation in 1999. In 2000, one unit will be put into production in advance. The supervisor assists the contractor in moving the stator of the construction plan into the pit from the installation room. Zhongyuan can only be constructed in a single installation in the installation room and can be constructed at the same time. The original design of the installation room can only accommodate one rotor and one runner at the same time. The supervisory contractor will set up the contractor supplier to discuss the juice and field measurement, the new cloth 1 site, the guarantee, the rotor and the turn. Wheel construction site needs. The mainframe supplier only provided one rotor round frame, which could not meet the construction requirements. The supervisor also cooperated with the contractor to design and manufacture the second round frame to meet the requirements of simultaneous construction of the two rotors. Due to major improvements in the construction program and proper implementation, the plan was finally realized. On December 4, 1999, the last unit was delivered to the power plant, and the results of the 6 units were put into production 1791 earlier than the original plan.
2 It is also an effective means for the supervisor to control the progress of the contractor's implementation of the schedule and the establishment of relevant reward and punishment systems.
3.3 Cost Control Cost control is mainly implemented by the contract department, and the focus of control is on change. The dynamic law of the construction process determines that the engineering change is inevitable, and whether the change is reasonable or not, the calculation of the change price is the key to control.
A fair evaluation of claims and disputes requires both the interests of the owners and the fairness of the contractor. In the course of the implementation of the 240 plan, in addition to timely and reasonable processing of the funds due to changes in the plan and construction friendship, the contractor also made a reasonable evaluation of the various claims made by the contractor, so that the contractor can get A fair compensation.
3.4 Project Coordination During the construction process, a large amount of coordination work is the responsibility of the supervisor. Therefore, the supervisors at all levels must frequently go to the scene to understand the situation, listen carefully to their intentions and suggestions, and especially listen carefully and analyze those who disagree. When the project encounters problems, disputes occur, and the progress is blocked, the engineer or the supervisory department manager must play a leading role, promptly convene all relevant units to conduct research, make timely judgments according to the actual situation of the project, and make correct decisions in a timely and realistic manner. And refers. However, the supervisor is neither the owner nor the superior of the contractor. The coordination of the supervision can only be effective if both parties agree. Among the parties, if a party makes concessions due to the coordination of supervision, and the damage is caused by the supervision, the supervision must provide compensation in a realistic manner. In fact, the coordination of supervision has a price.
Surveillance. In the 1st job, the personal quality of the engineer's supervisory supervisor is the key. Only the coordinator who is convinced by the contractor is the coordinator of the mediator. Supporting encouragement of mutual coordination between employers and suppliers should not interfere with the coordination or tacit agreement between contractors. To this end, the supervisor requires the contractor to establish a different level of regular coordination meeting system, and the supervisors send corresponding personnel to participate. For example, during the construction of the embedded parts of the mainframe, the standards interfered with each other. With the support of the supervisors, the two levels of the coordination meeting system were established. The weekly meeting of the 1st meeting was co-chaired by the project general manager of the project supervisor, and Every major afternoon (1) is attended by the on-site coordination meeting that can be co-chaired. The engineer's representative clothes will be sent to the assistant assistant or the supervisory manager, which has achieved good results.
4 points of experience 4.1 The pre-supervisory supervision unit of the contracting contract should be involved in the preliminary work of the project early, which is very important. The electromechanical supervision work of the beach hydropower station was involved in this work in the year before the contractor's construction. Therefore, there is sufficient time for the first phase of the project to understand and pre-pulse. For example, understand the progress of the total construction network, and understand the network progress and equipment arrival. Contradictions, participation in the design liaison meeting to understand the manufacturer's Italian cabinet, participate in the bidding work, etc. The above work is beneficial to the future supervision work, and can strictly monitor the contractor according to the scope of authority entrusted by the owner to check whether the contractor fulfills Whether the contract is implemented in accordance with the technical requirements stipulated in the contract.
4.2 About the supervision of the side station In the implementation process of the construction project, what is the construction quality, whether it meets the standards stipulated by the design, and observe the construction process through the side station to see if it is in accordance with the specifications of the construction operation rules and design requirements. Construction, this is the main method used by the owners, and it is bound to invest a lot of supervisors and supervisors.
The construction quality should be controlled by the contractor itself, and its own construction and quality control personnel should take the initiative to grasp the quality. If the taste emphasizes the side station supervision 4.3 Quality assurance The basic quality assurance foundation mainly includes the following aspects 1 Adopt advanced construction technology construction technology and performance Excellent application, mechanical equipment, lay the foundation for ensuring construction quality, adhere to the planned organization of balanced production 3 scientific production quality responsibility system and strict personnel management system; the good quality of construction workers and optimized labor combination, create good for civilized production Work environment.
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