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First, the latest highway engineering quality inspection and evaluation standards basis.
The latest highway engineering quality inspection and evaluation standards, this standard is prepared in accordance with the Ministry of Communications Traffic Highway [2000] No. 722 document "on the issuance of the 2000 annual highway engineering standard revision plan notice" requirements. The second volume of this volume of "Quality Inspection and Evaluation Standards for Highway Engineering" (JTGF80-2004) - mechanical and electrical engineering is the basis for the testing and evaluation of mechanical and electrical projects of highway engineering.
The absence of the evaluation form is the concrete embodiment of the results of inspection, testing, testing and on-site verification, and is the final evaluation of the quality of the project. The construction unit shall conduct self-assessment according to the requirements of the specification, and the supervision unit shall independently assess the quality of the project according to the results of independent sampling inspection or the information signed by the supervision unit, and the project legal person shall review and approve the supervision assessment results according to the supervision assessment results and the situation grasped at ordinary times.
1. The data column of the measured data or deviation value, the evaluation table and the inspection record table should be consistent, or the test data after the inspection record data is summarized and merged through several processes; For the appearance inspection items, a reasonable judgment shall be made after on-site inspection according to the assessment time; Whether the data is complete or not should be made a true judgment after consulting all the original records, inspection and test data as required.
2. The signature of the "person in charge of inspection" in the table shall be signed by the chief engineer of the project, the "review" shall be signed by the person in charge of quality inspection, and the "testing" and "record" shall be signed by the authorized on-site quality inspection personnel.
4. The score of the measured items in the evaluation table is calculated in accordance with the method specified in Article 1 of the "Highway Engineering Quality Inspection and Evaluation Standards" (JTGF80 1 2004).
5. The weight of the measured items in each assessment table shall not be modified in accordance with the provisions of the "Highway Engineering Quality Inspection and Evaluation Standards" (JTGF80 1 2004).
6. The score of the measured items of the sub-project is the weighted average score of all the measured items, that is, it is obtained by dividing the total value of the weighted score by the total value of the weight (excluding the items not checked), and the result is kept to two decimal places.
7. The basis for appearance appraisal and point deduction shall not be increased according to the terms given in the "Highway Engineering Quality Inspection and Evaluation Standards" (JTGF80 1 2004), and the points should not be added to the judging items, and the points should be deducted within the given standard range and shall not be exceeded. The reason for the deduction and the value of the deduction should be filled in the form, and if there is no deduction, fill in "qualified" directly.
8. The quality assurance data shall be reduced in accordance with the provisions of Article 1 of the "Highway Engineering Quality Inspection and Evaluation Standards" (JTGF80 1 2004), and the deduction items and deduction values shall not exceed the specified range. The reason for the deduction and the value of the deduction should be filled in the form, and if there is no deduction, fill in "complete" directly.
9. The score in the engineering quality rating column should be obtained after deducting the appearance of the sub-item (process) project score and the subtraction of quality assurance data, and the quality grade should be assessed in accordance with the provisions of the "Highway Engineering Quality Inspection and Evaluation Standards" (JTGF80 1 2004). When the supervision unit signs the opinion in Fudong Zheng, it should make the necessary description of the quality level and appearance, and should not deduct points for the self-assessment of the construction unit.
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<> about the quality inspection and evaluation standards of highway engineering? If you want to know the answer, the following is the relevant content of the highway engineering quality inspection and evaluation standards 2017 sorted out by Zhongda Consulting, and the basic situation is as follows:
The revision of the "Highway Engineering Quality Inspection and Evaluation Standards" strives to be consistent with the newly promulgated national standards and transportation industry standards. The revised "Highway Engineering Quality Inspection and Evaluation Standards" will certainly promote the healthy development of highway construction and ensure the steady improvement of project quality. Quality is not only the life of highway engineering enterprises, but also the life of other industries.
Further improve the quality awareness of highway engineering, ensure the safe and smooth operation of highway engineering in the process of operation, so as to reduce the investment in maintenance and maintenance of the road in the later stage. The construction of highway engineering is a whole system, and different degrees of travel quality problems will have a certain impact on the smooth flow of traffic, the speed of vehicles and the safety of their driving. After the completion of the highway project, the quality of the project should be inspected and evaluated, and the quality grade and score of the work and distribution town should be determined.
The evaluation standards, evaluation steps and evaluation content all directly affect the quality level of the project.
The content of highway engineering quality inspection and evaluation standards includes engineering quality assessment, subgrade earthwork, drainage engineering, retaining wall, protection and other masonry engineering, pavement engineering, bridge engineering, culvert engineering, tunnel engineering, traffic safety facilities, environmental protection engineering, etc.
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1. There shall be no less than one spot check per kilometer of subgrade engineering compaction and slope, and the number of subgrade pressure code masking solidity inspection points in each contract section shall not be less than 10. Subgrade deflection detection, high-speed, first-class highway to each half of each kilometer as the assessment unit, other grades of highway to each kilometer as the assessment unit.
2. The cross-sectional size of the drainage project shall be randomly inspected in 2 3 places per kilometer, and the paving thickness shall be randomly inspected in no less than 3 places according to the contract section.
3. The random inspection of small bridges shall not be less than 20 of the total number and the random inspection of each type shall not be less than 1.
4. Culvert spot check Liangzhou is not less than 10 of the total number and each type of spot check is not less than 1.
5. The random inspection of the support project shall not be less than 10 of the total number and the random inspection of each type shall not be less than 1.
6. For the deflection and flatness detection of pavement engineering, each half width and one kilometer of high-speed and first-class highways shall be used as the evaluation unit, and each kilometer shall be used as the evaluation unit of other grade highways. There shall be no less than 1 spot check item per kilometer for other random inspection items.
7. Extra-large bridges and bridges are inspected one by one; The random inspection of medium bridges shall not be less than 30% of the total number and the random inspection of each bridge type shall not be less than 1.
8. Tunnel inspection one by one.
9. There shall be no less than 1 spot check per kilometer of protective fences and markings in traffic safety facilities; The random inspection of signs shall not be less than 10% of the total.
10. Spot check of all kinds of facilities of mechanical and electrical engineering shall not be less than 10, and all of them shall be tested when there are less than 3 facilities of each type.
1. What is the classification of highway engineering quality?
The quality level of the project shall be assessed according to the division project, the unit project, the contract section and the construction project, and the quality level of the division project shall be divided into two grades: qualified and unqualified; The quality grades of unit projects, contract sections and construction projects are divided into three grades: excellent, qualified and unqualified.
1. If the score of the branch project is greater than or equal to 75 points, the quality of the branch project is qualified, otherwise it is unqualified.
2. All the sub-projects contained in the unit project are qualified, and the score of the unit project is greater than or equal to 90 points, and the quality grade is excellent; All the projects included in the division are qualified and the score is greater than or equal to 75 points and less than 90 points, and the quality level is qualified; Otherwise, it is ineligible.
3. The single-mode project (contract section) contained in the contract section (construction project) is qualified, and the project quality appraisal score is greater than or equal to 90 points, and the project quality appraisal grade is excellent; The included unit projects are qualified, and the score is greater than or equal to 75 points and less than 90 points, and the project quality appraisal grade is qualified; Otherwise, it is ineligible.
4. The unqualified branch project can be re-identified after refurbishment, reinforcement, reinforcement or rework until it is qualified.
2. What are the overall requirements for the quality of highway engineering?
The overall stability of the roadbed; There are no serious defects in the pavement; The structure of bridges, tunnels and other structures is safe and stable, and the concrete strength, pile foundation detection, tensile stress of prestressed components, and bridge bearing capacity all meet the design requirements; The quality of the project is qualified by the construction self-inspection and supervision evaluation, and confirmed by the project legal person. The engineering quality appraisal that does not meet the above requirements will not be passed.
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Legal analysis: the specifications for highway engineering quality inspection and evaluation are: 1. The data column of the measured data or deviation value, the evaluation form and the inspection record form should be consistent.
2. The signature of the person in charge of inspection in the form shall be signed by the chief engineer of the project, the person in charge of quality inspection shall be signed by the person in charge of quality inspection, and the inspection and record shall be signed by the authorized on-site tour quality inspection personnel.
Legal basis: "Highway Engineering Quality Inspection and Evaluation Standards" Engineering quality scoring method The construction unit shall conduct a self-inspection of each sub-project according to the basic requirements, measured items and appearance appraisal listed in this standard, and submit true and complete self-inspection data according to the appendix chain in the "sub-project quality inspection and evaluation form" to self-score the quality of the project. The supervising engineer shall inspect the quality of the project according to the requirements of the regulations, and sign and score the construction self-inspection data.
The quality supervision department evaluates the quality of the project step by step according to the spot check data and the confirmed construction self-inspection data and the quality management data of the supervising engineer, which is used as the basis for the acceptance and evaluation of the quality grade of the Shed Mill Bureau for delivery and completion. The quality inspection score of highway engineering is based on the sub-project as the evaluation unit, and the 100-point scoring method is used for scoring. On the basis of the sub-project score, the corresponding sub-project and unit project score value, the unit project excellent rate and score value of the construction project are calculated step by step.
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First, subgrade earthwork.
1. The specified value or allowable deviation of the measured project technical indicators of the earthwork subgrade and the stone subgrade shall be set according to the two gears of the tall search speed highway, the first-class highway and other highways (referring to the second-level and below highways), and the compaction degree of the earthwork subgrade shall be set according to the three gears of the highway and the first-class highway, the second-class highway and the third- and fourth-class highways.
2. The inspection frequency of the measured items specified in this chapter shall be the minimum inspection frequency in each inspection section of the two-lane highway if the inspection section is measured in the meter: the number of inspections shall be increased accordingly according to the ratio of the number of lanes to the two-lane road.
3. The compaction degree of the subgrade shall be tested in layers, and other inspection items of the subgrade shall be inspected and measured on the surface of the subgrade.
4. The shoulder project can be inspected and evaluated as a sub-project of the pavement project.
5. The earthwork compaction standards of the parking lot and toll plaza in the service area can be monitored according to the requirements of the earthwork subgrade.
2. Drainage engineering.
1. The drainage project should be constructed according to the design requirements and the requirements of the construction specifications, and the appropriate location should be selected according to the actual terrain to discharge the surface water and groundwater out of the roadbed.
2. Including side ditches, interception ditches, drainage ditches, etc.
3. Other drainage projects such as water falls, rapids, and dustpans can be assessed in accordance with the standards.
4. The pavement retaining belt is included in the curb sub-project, and the drainage base can be assessed in accordance with the standard.
5. The trench backfill should comply with the provisions of the design and construction specifications.
6. The open excavation foundation of the drainage pumping station can be assessed in accordance with the standard.
7. Reinforced concrete components include steel bar processing and installation sub-projects, and prestressed concrete components include processing and tensile sub-projects of prestressed steel bars.
3. Retaining walls, protection and other masonry works.
1. For masonry retaining walls, when the average wall height is less than 6m or the wall area is less than 1200m2, each place can be assessed as a sub-project: when the average wall height reaches or exceeds 6m and the wall area is not less than 1200m2, it is a large retaining wall, and each place should be assessed as a sub-project.
2. Cantilever and armrest retaining walls, pile plate types, anchor rods, anchor plates and reinforced earth retaining walls should be assessed as branch projects.
3. The dam and revetment can be assessed with reference to the standard of the retaining wall.
4. The concrete structure or component of the steel bar ridge shall include the steel bar processing and installation sub-project.
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