Supervision in the construction stage of highway reconstruction project?

What does the supervision of highway reconstruction project include in the construction stage? The following Zhong Da consults the bidding teacher to answer your questions for your reference.

(A) project quality management

In order to strengthen the project quality management, the resident office has formulated the "quality assurance system and quality measures" according to the contract documents, design drawings, three common faults of highways and the management methods of abutment backfill, and improved the relevant quality management systems, such as the construction supervision plan, the key points of supervision in each process and construction technical measures, the quality assurance system and measures, the quality responsibility investigation system, the supervision implementation rules, the test plan, the sampling frequency and other specific methods and measures. According to these procedures and measures, the supervision team and the construction unit will conduct irregular inspections during the construction process, and the supervisors who fail to monitor the construction site as required will be criticized and corrected or replaced. Therefore, there is a higher requirement for the on-site supervision of the supervision team. Regularly inspect the indoor work of the supervision team and the construction unit, hold regular site meetings on the 3rd of each month, put forward the problems found in the inspection at the meeting, formulate correct treatment measures in time, form meeting minutes and send them to the supervision team and the construction unit for timely rectification and implementation, and report the rectification and implementation to the resident office.

In engineering quality control, we think the key is to strictly implement the quality control procedures specified in the specification, namely, strict commencement approval procedures, standardized supervision, contractor's self-inspection and inspection, and supervision team's sampling inspection and inspection confirmation. (Resident sampling frequency is not less than 5%) In the process of project implementation, as a system requirement, the project department must have construction technical management personnel (according to different construction operations or builders, or testers, or field operators, etc.). ) Be present for technical and quality management of construction operations, and it is not allowed to entrust the contract to the construction team, so that the quality and progress are out of control; Supervision team must be in accordance with the provisions of the specification, standing in all directions should be in place continuously, inspection and supervision should be timely inspection, supervision and testing, found that the problem should be corrected in time, patrol should be frequent. An important duty of the project management of the resident office is to check and supervise whether the construction management personnel and supervision personnel are in place according to the regulations, whether they are conscientious and whether the quality is effectively controlled. In order to know the site situation in time, a station was set up in the second contract section (Ya Bu), and three supervision engineers were arranged to stay at the site. In the construction stage of key parts of the bridge, the structural engineer in charge of the bridge in the resident office is also stationed at the construction site.

The quality of raw materials is the source of engineering quality. Without qualified raw materials, qualified projects cannot be repaired. Since entering the site in 2004, the station has attached great importance to the quality of raw materials such as sand and gravel, concrete raw materials and asphalt mixture, increased the sampling frequency and improved the inspection and test items. Only in the early stage after the resumption of work in 20XX, the resident office issued 9 supervision notices, 7 work instructions and 6 official documents for the problems of material testing and on-site raw material control, requiring the supervision team and contractors to improve nearly 20 material testing projects.

In the process of construction, check the problems found, such as packing quality, layered thickness, detection and measurement, structural size, technological process, etc. , do not meet the requirements of the specification, according to the program through various programs timely rectification. In the early stage of project implementation, when it was found that the triangulation was not used in the bridge construction positioning survey, it was immediately ordered to establish triangulation and elevation control network for control. After the establishment of the control network, it was used for bridge construction control survey after passing the station inspection, which laid the foundation for the smooth construction and installation of the bridge.

Entering the stage of pavement construction, the resident office issued the Notice on Strengthening the Quality Control of Graded Macadam Base Material, the Notice on Strictly Controlling the Quality of Pavement Engineering, the Notice on Strengthening the Quality Control of Pavement Base Material and the Notice on Strengthening the Quality Control of Pavement Prime Oil Construction from June to August 7,/kloc-0, only 20XX years, and earnestly urged the implementation of the notice requirements and the on-site rework and shutdown.

From September 2004 to October 20, 20XX/kloc-0, the main body of the project was completed, with 709 documents issued by * *, 2 work orders1and 47 supervision notices, and inspection items 19 were completed, with 6873 inspection times (groups and points), thus ensuring the quality of the project.

(2) Project schedule control

Dynamically control the station according to the procedure of "planning-implementation-inspection-adjustment". The station is divided into monthly and ten-day units, and the contractor is required to report the progress plan on time. The station checks the actual implementation of the progress plan and does not conduct on-site verification on a regular basis. Analyze the feasibility of the schedule together with the project department and the supervision team, find out the synchronous construction links, improve the construction technology, shorten the construction time, and arrange the construction period and manpower reasonably with a scientific attitude. The main completion time of S2 16 wiring project is 20XX 65438+ 10/0 20xx, which is 50 days later than the contract period. There are objective reasons for the delay, such as poor construction environment, unstable mountain, frequent landslides and falling rocks, and increased engineering quantity. From June to July, 2005, natural disasters such as floods and mudslides caused by continuous rainstorms damaged many culverts, roadbeds and pavements, causing many interruptions in road traffic, but the main reason was that the contractor's investment (including personnel, machinery and funds) was not timely enough.

The progress of bridges, culverts and structures in the first and second contract sections is lagging behind from the start of construction in that year to the suspension in winter. By the time of resumption of work in March of 20XX (including the completed works in winter), the proportion of the completed works in the two contract sections to the total works is: 60% of the bridge in the first contract section, 80% of the medium bridge, 70% of the small bridge and culvert, 88.8% of the retaining wall (post-supplement) and 95.8% of the subgrade. Small bridges and culverts 100%, retaining wall 89.7% (later supplemented), subgrade 95.6%, pavement cushion 56.5%, base course 49.9%, surface course 4 1. 1%. The workload to be completed in 20XX years is still very large.

After returning to work in 20XX, in order to effectively control the progress, give full play to the promotion of monthly guarantee and monthly contract duration, the resident office stipulated a strict ten-day plan approval system for the supervision team, a 10 progress express system and a ten-day regular meeting system for the supervision team, and the resident office compiled a supervision newsletter to inform the project progress in time. The monthly site meeting will check the monthly progress and quality, and the resident office will analyze and count the completion of the monthly progress, as well as opinions and opinions.

Summary of supervision in the construction stage of highway reconstruction project: The resident shall go to the construction site and check the quality, quantity and office data of each measurement item reported by the supervision team according to the "intermediate measurement checklist".

The article comes from the suggestions of real estate e-net, and all of them are written reports to the executive office formally.

The delay in the construction of 20XX is mainly due to the slow progress from April to June. The average monthly plan completion rate of the first contract section is 48.8%, and that of the second contract section is 46.4%. The key problem is that the contractor's insufficient investment, especially insufficient funds, led to the construction team quitting halfway, and there was no fuel and raw materials, which led to several construction stops. The more serious situation is the first contract section. In view of this situation, the Project Implementation Office and the Highway Bureau took corresponding measures in time, and the situation improved in July and August.

In 20** years, the main project contents were road expansion and road appearance modification, but the construction unit paid insufficient attention and investment, which led to a serious lag in progress.

(3) Project cost control

According to the "Intermediate Measurement Checklist", the station will check the quality, quantity and internal data of the measurement items reported by the supervision team in each period to ensure that the measurement work is not repeated, not fraudulent, and avoid the irregularities such as underreporting and early measurement. Based on the attitude of being responsible for the project quality, the resident office allows all professional engineers to carefully review the reasons for the change, the design drawings, the quantity, unit price and amount of the changed project according to the change documents reported by the supervision team, and prepare the change design consulting audit table and the change (new) engineering quantity audit table to form the resident office's reply or audit opinion on the changed project, and report it to the project implementation office according to the examination and approval authority of various institutions stipulated by the Highway Bureau. Strictly implement the measurement principles and payment procedures, and insist that the projects that do not meet the requirements of the contract documents will not be measured, the projects with unqualified engineering quality will not be measured, the projects that have not been submitted for inspection and have incomplete inspection procedures will not be measured, and the projects with incomplete construction materials will not be measured temporarily.

The contract price of the engineering bill is 89.351100000 yuan, the quantity of the bill review is 9 164.05438+006000 yuan, the change cost is 29 107966 yuan, and the preliminary settlement cost is/kloc-0.

(4) Project contract management

Before returning to work every year, the resident office first checks whether the contractor's personnel and mechanical equipment meet the requirements of the contract and construction, and whether the personnel of each supervision team and test instruments and equipment meet the requirements. After the construction began, such inspections were carried out many times to master the mechanical dynamics of personnel. During the four-year construction period, the main personnel and machinery and equipment entering and present in each period meet the contract requirements. The existing problem is that when the project schedule needs to increase labor, machinery and capital investment, the contractor's implementation strength and actual effect are often not great, and it can't be put in place in time, which leads to the failure to complete the project within the contract period of 365,438+0 on August 20XX.

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