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Content and importance of municipal engineering data collation

1. Importance of data sorting and archiving

1. Technical data of municipal engineering construction are written records, drawings, tables, audio-visual and other materials that should be archived by the construction unit according to relevant regulations during the construction process. It is a necessary condition for evaluating the quality of the project and delivering it after completion, and also the basis for inspection, maintenance, management, use, reconstruction and expansion of the project. Therefore, the engineering construction technical data should be sorted out in time with the construction progress, filled in carefully, so that the handwriting is clear, the project is complete, accurate and true, and it must be reviewed by the construction technical leaders at all levels. After completion, the data results should be signed by the technical leaders and legal representatives of the enterprise and stamped with the official seal of the unit.

2. When signing a construction contract, the construction unit and the construction enterprise should clearly define the responsibility for compiling the construction technical data and the handover period.

3. The construction enterprise is responsible for the management of municipal engineering construction technical data. Construction enterprises should strengthen the management of construction technical data, establish and improve the technical data management department, and formulate post responsibility system.

4. The construction unit, construction unit, supervision unit and relevant personnel should seriously study the policies, regulations and normative documents of urban construction archives and construction project archives, publicize the importance and necessity of filing and filing construction projects and submitting the files to urban construction archives, and improve people's awareness of archives and legal system.

5. Strengthen the training of relevant engineering and technical personnel and archivists of construction projects on archival theoretical knowledge, specific business norms and standards, and business operation skills, such as the formation, accumulation, archiving and arrangement of archival materials.

6. Construction enterprises should incorporate the management of construction technical data into the reward and punishment system of enterprises. Those who alter, forge, withdraw at will or neglect their duties such as damage or loss shall be punished according to relevant regulations. If the circumstances are serious enough to constitute a crime, criminal responsibility shall be investigated according to law.

second, the contents of municipal engineering data collation

municipal engineering includes roads, bridges, drainage, rain, sewage plants and stations, flood control and other projects. The items specified in the construction technical data for unit project completion are as follows:

(1) Construction organization design (or construction scheme)

Construction organization design (or construction scheme) should be prepared before organizing construction. Large-scale and long-term construction projects can be compiled by parts and units according to the general design of the construction organization.

1, the construction organization design must be approved by the technical director at the next higher level or the construction unit (supervision unit) to be effective. (Fill in the examination and approval form for construction organization design) If there are any process changes and major changes in construction measures, there should be procedures for examination and approval of changes.

2. The construction organization design shall include the following main contents:

① Text description: general situation of the project, project cost, project characteristics, time limit for a project, construction deployment, quality requirements, main technical measures, etc.

② construction layout.

(3) the schedule and all kinds of work, materials and machines are transported into the schedule.

④ quality objective design (overall quality objective, sub-quality objective, contents, measures, methods and executors to achieve the quality objective).

⑤ construction technical scheme, technical measures to ensure quality, civilized construction and safe construction (including construction measures in winter and rainy season, and new technologies, new processes and new methods adopted, etc.).

⑥ technical measures for saving construction.

⑦ large bridges, factories, stations and other complex civil engineering and installation projects should have special designs for the needs of single project construction, such as formwork and support design, underground trench support design, dewatering design, construction temporary bridge, convenience line design, square culvert jacking back design, prestressed concrete reinforcement tensioning design, large precast member hoisting design, concrete construction pouring scheme design, equipment installation scheme design, etc.

⑧ environmental protection measures.

(2), the blue prints.the design and technical disclosure records

1. Before the project starts, the blue prints.the design must be organized, and the technical director of the contracted project shall organize the construction technicians to conduct a comprehensive study, review and record the blue prints.the design.

2. technical disclosure: including design disclosure, construction organization design disclosure, process construction technical disclosure, all kinds of disclosure should be recorded in writing, and both parties should sign and acknowledge the disclosure.

(3), raw materials, semi-finished products and finished products factory quality certificate and test (inspection) report

The quality of raw materials, semi-finished products and finished products must be qualified, and there should be factory quality certificate or test sheet. Where technical treatment measures need to be taken, they shall meet the relevant specifications, standards and regulations, and shall be approved by the relevant technical person in charge (with approval procedures) before use. Where new materials, new products, new processes and new technologies are used, there should be an appraisal certificate or a production license, and there should be product quality standards, instructions and process requirements. Before use, they should be inspected according to their quality standards.

1. Cement

① Cement shall have the manufacturer's ex-factory quality certificate and test report (including factory type, variety, label, production date and test number).

② a second interview must be conducted before use.

③ cement retest items: compressive strength, flexural strength and stability.

(4) if the cement is tested quickly, the strength of standard curing for 28 days will still prevail.

⑤ The cement test sheet should have the test conclusion. If there is any problem with the cement quality, the permitted and used parts of the project and the quality requirements that will not affect the parts should be indicated under the applicable conditions.

⑥ The cement variety, label and test number indicated on the concrete block test report should be consistent with the contents in the cement factory certificate or the re-inspection list.

2. Reinforcement

① Reinforcement shall have factory quality certificate and test report, and samples shall be taken for mechanical performance test according to relevant standards.

② mechanical performance test, chemical analysis report and weldability test report should be provided for imported steel bars.

(3) The steel bars processed centrally should have the factory certificate issued by the processing unit, and the copy (copy) of the steel bar factory qualification certificate and the steel bar test sheet.

(4) high-strength steel wires and steel hinge wires used in prestressed concrete shall be recorded in appearance inspection batch by batch, and mechanical performance tests shall be conducted by sampling according to relevant regulations.

⑤ The items in the steel bar test sheet should be filled in completely, and there should be test conclusions. If there is any problem in the first test, double sampling should be taken, and the two test reports should be kept at the same time when they are qualified.

3. Steel fittings used in steel structures

① must have quality certificates and meet the requirements of design documents. If there is any doubt about the quality, mechanical performance test and chemical composition inspection must be carried out according to the specifications.

② The manufacturing unit shall submit the following technical documents when the steel structures leave the factory.

A, product quality certificate.

B, steel structure construction drawing. If there are design changes, there should be change negotiation documents, and the modified parts should be indicated in the drawing.

C, quality certificates and test reports of all steel products and other connectors.

D, new materials, new technology test identification data.

e. list of shipped components.

4. covered electrode

① covered electrode should have the factory certificate.

② baking records should be kept for those who need baking.

5. Bricks

① should have factory quality certificates.

② If it is used for load-bearing structure or has doubts about its material, it should be retested (the required items are labeled).

6. Sand and stone

① The sand and stone used in municipal engineering shall be sampled and tested according to the origin, variety, specification and batch according to relevant specifications.

(2) sand and stone test results do not meet the quality standards, which should not be used in principle. After technical measures are taken for treatment, there should be a second interview report and examination and approval procedures.

7, concrete admixture

must have the manufacturer's quality certificate. The contents include: factory name, variety, packaging, weight, factory date, performance and instructions for use. The performance test of new materials should be carried out before use.

8. Waterproof material

① The linoleum should have a factory quality certificate, including various technical indicators such as variety and label, and should be sampled for inspection. The inspection contents include impermeability, tension, flexibility and heat resistance.

② asphalt: there should be a report on the origin, variety and label of asphalt, and the items that must be tested, such as penetration, softening point and elongation.

(3) The performance of new waterproof materials must meet the design requirements, with product appraisal, production license, ex-factory certificate, quality standards and construction technology requirements, and sampling re-inspection records.

9. Anti-corrosion, insulation and thermal insulation materials shall have factory quality certificates indicating the product quality indicators and service performance.

1. Quicklime

No matter whether bagged quicklime or bulk quicklime comes into the site, it should be sampled in batches to test the calcium oxide and magnesium oxide content of lime.

11. Fly ash, lime gravel and lime soil

① When each batch of fly ash and lime gravel mixture enters the site, the manufacturer shall provide the construction unit with the ex-factory qualification certificate. If the feeding period exceeds 1 days, the manufacturer shall provide the ex-factory qualification certificate every 1 days.

② The road mix should have the following test data.

A, the measured value of the mixture ratio of fly ash and gravel (content of fly ash and lime).

B, active oxide content of fly ash lime gravel.

C, water content of fly ash lime gravel.

D, sieve analysis results of fly ash lime gravel particles.

E, compressive strength of fly ash lime gravel (7 days, 28 days).

the first four items shall be provided with the materials, and the latter item shall be supplemented according to the age.

12. Asphalt mixture

① The asphalt mixing plant shall provide the construction unit with the factory certificate according to the specifications, varieties and batches, and the certificate shall include the following contents:

a. Asphalt concrete type (mineral aggregate gradation and asphalt specification and dosage);

B, stability;

C, flow value;

D, voidage (water saturation rate);

E, saturation;

F, standard density.

or provide

A, asphalt concrete type (mineral aggregate gradation and asphalt specification and dosage) according to the following contents;

B, splitting tensile strength at 1℃;

C, splitting tensile vertical deformation at 1℃;

D, water saturation rate of specimen;

E, standard density.

13. pipes, fittings, equipment and accessories

① all kinds of pipes, fittings, equipment and accessories should have factory certificates. The content of the certificate should be able to show that the product meets the national specifications and design requirements.

② Before using steel pipes and steel pipe fittings, check their specifications, materials and models according to the design requirements and make inspection records.

(3) all kinds of metal pipes and fittings shall be visually inspected according to the current standards before installation and use, and inspection records shall be made.

④ Elbows, reducers, tees, flanges, blind plates, compensators and fasteners shall be inspected according to the current standards, and inspection records shall be made.

⑤ Before installation and use, all kinds of valves shall be tested for strength and tightness according to the current standards, and inspection records shall be made.

14. Complete sets of equipment for plant and station projects must be accompanied by complete documents, including packing list product qualification certificate, instructions for equipment installation and use, etc. When necessary, require disassembly inspection and make detailed records.

15. All kinds of thermal insulation materials and products should have product certificates and material performance test records, and their types, specifications and performance should meet the design requirements.

16. Inspection data of prestressed concrete equipment

① There should be ex-factory qualification certificates and hardness test records of prestressed anchor heads, clips and top plugs.

(2) when using metal bellows to form holes, there should be quality certificate of bellows and on-site inspection records.

(3) There is a record that the tensioning equipment-oil pump, jack and pressure gauge is appraised by the metrological verification unit.