Carry out on-site supervision activities of key parts and key working procedures in the on-site supervision scheme, ensure the quality and safety of the parts and key working procedures, and make on-site supervision records to ensure that the objectives of supervision work are achieved;

1. Work flow and content of on-site supervision personnel

1.1 The contractor shall, according to the on-site supervision plan prepared by the supervision organization, notify the project supervision organization of the site in writing 24 hours before the construction of key parts and key working procedures;

1.2 the project supervision organization shall determine the on-site supervision personnel according to the written notice of the contractor, and be further familiar with the on-site plan;

1.3 the on-site supervisor shall check the quality inspection report of the building materials, components, equipment or commercial concrete used in the on-site parts, and urge the contractor to issue certification materials for those that need to be tested or re-tested, otherwise the construction is not allowed;

1.4 before the start of the station, the station supervisor shall check the arrival of the on-site quality inspection personnel of the contractor, the certificates of the special type of work personnel and the preparation of machinery and materials;

1.5 the on-site supervision personnel earnestly perform their duties, and supervise the key parts and key working procedures of on-site supervision at the construction site;

1.6 during the implementation of on-site supervision, if the on-site supervision personnel find that the contractor has violated the mandatory construction standards, they have the right to order the construction enterprise to rectify immediately; If it is found that the construction activities have or may endanger the quality of the project, it shall report to the supervision engineer or the chief supervision engineer in time, and the chief supervision engineer shall issue instructions for local suspension of construction or take other emergency measures;

1.7 the on-site supervision personnel shall truthfully and accurately fill in the on-site supervision records according to the on-site situation and problems found, and record them in the log;

1.8 if the on-site supervision personnel and the on-site quality inspection personnel of the construction enterprise have not signed the on-site supervision record, the next working procedure shall not be carried out.

2. Filling in the on-site records

2.1 Project name and number: Fill in the full name of the project, and the number will be compiled according to time, for example, the number was 5-17 on May 17, 28;

2.2 date, climate and place: fill in the date of * * month of * * year, the climate is mainly sunny, cloudy and rainy, and the highest and lowest temperatures, and the place is filled in with the house number or the reference objects around the project location;

2.3 the site and process of the supervision of the side station: generally, the site and process are filled in at the same time, such as the concrete pouring of beams and columns on the * * floor of Building * *, the * * axis/* * axis of Building * *, and the waterproof details of the foundation;

2.4 start and end time of on-site supervision: as the on-site supervision personnel generally have the responsibility of inspecting personnel, materials and machinery before construction and the contents of protection or maintenance inspection after construction, the start and end time is ahead of and behind the start and end time of construction, which can be actually filled in accurately to the minute, and filled in by 24-hour system;

2.5 construction situation: indicate the start time of construction work, the type and quantity of mechanical tools, the number of construction personnel, and whether the construction sequence is reasonable. The concrete supplier or waterproof material manufacturer, the completion time of construction, the workload of this side event, the maintenance of concrete pouring or waterproof layer protection measures, and the safety situation;

2.6 supervision situation: the records mainly reflect the contents of supervision, such as the number of supervisors at the station * *, for example, in concrete pouring, the slump of concrete is **mm, and the number of concrete specimens produced is * * groups and * * pieces. Such as backfill soil, the type of soil is * * soil, the laying thickness of each layer is **mm, the number and number of sampling layers, etc., and whether the hidden key parts and structural practices meet the design and specification requirements should be stated at the same time;

2.7 problems found: mainly including: the quality inspection personnel of the construction party are not in place, the quantity and types of machinery before construction can't meet the construction requirements, the construction sequence and practices don't meet the requirements of the scheme, the slump of concrete is too large, the vibration is not standardized, the waterproof material is replaced halfway, and safety accidents may occur during construction, etc.

2.8 handling opinions: the problems found can be handled orally, in writing, after reporting, and after stopping work, and the results are clearly stated;

2.9 remarks: indicate the second-round examination of materials and material specifications before the station work, such as the strength grade of concrete, the thickness of waterproofing membrane, etc., and the arrival of quality inspection personnel of the construction party;

2.1 signature column: the signature column shall be fully filled in according to the table design.

3. Provisions on Supervision and Management of Off-site Supervision

3.1 The construction administrative department shall strengthen the supervision and inspection of off-site supervision, and notify the supervision enterprises and relevant supervisors who fail to implement off-site supervision according to Document No.189, order them to make rectification, and load them into the credit files of enterprises and relevant personnel as bad records. If the circumstances are serious, they shall be identified as unqualified during the annual qualification inspection, and their qualification grades shall be re-approved according to the next qualification grade. For those who fail to carry out on-site supervision in accordance with No.189 document and cause engineering quality accidents, in addition to punishing the relevant responsible units according to law, the corresponding responsibilities of the supervision enterprises and relevant supervisors should be investigated according to law;

3.2 the on-site supervision record is an important basis for the supervision engineer or chief supervision engineer to exercise the relevant signing right according to law. The supervision engineer or chief engineer shall not sign the corresponding documents for the construction of key parts and key working procedures that require on-site supervision, where on-site supervision is not implemented or there is no on-site supervision record. After the project is completed and accepted, the supervision enterprise shall file the supervision records of the station for future reference.

4. Save and send

The on-site supervision records of the supervision unit are made in duplicate, one for the contractor and the other for archiving and keeping, and the posting records shall be made.

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