Highway Construction Acceptance Standards, Road Acceptance Standards and Specifications

1.The basis for the acceptance of highway engineering is: approved engineering design, budget estimate, budget documents; Approved change design documents and drawings; Approved or confirmed tender documents and contract texts; Instructions from the higher authorities for the project; Highway engineering standards, specifications and relevant national regulations issued by the Ministry of Communications.

2.After the completion of the highway engineering construction project, the construction and construction unit shall prepare all the project completion documents, charts and materials, and bind them into a book.

3.Minor projects or simple works projects for alteration. With the approval of the unit presiding over the completion acceptance, it can be combined into a completion acceptance. The project that fails the initial inspection shall not be submitted for completion acceptance.

4.The acceptance and completion acceptance of highway projects shall be carried out by the competent departments of transportation or investment and construction units that examine and approve the design documents according to the scale of construction and investment affiliation. The cost of acceptance work shall be borne by the construction unit.

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According to the highway engineering quality acceptance specifications, the questions you ask are very one-sided, and people don't know what to do. First of all, what part of the highway engineering do you want to know about the flatness? It is necessary to know that the roadbed, pavement, cushion, ditch bottom, etc. all involve flatness, and their acceptance criteria are not the same.

Then different pavements and different subgrades also have different flatness standards, I hope the landlord can write clearly the location and category, such as: first-class highway asphalt concrete surface layer flatness acceptance standards and so on. I hope that the landlord will add questions, and I will answer them in detail when the time comes.

Legal analysis: "Code for Construction and Quality Acceptance of Urban Road Engineering" is an industry standard, numbered CJJ1-2008, which has been implemented since September 1, 2008. Among them, Article 1 is a mandatory provision and must be strictly enforced.

The original industry standard "Municipal Road Engineering Quality Inspection and Evaluation Standard" CJJ1-90 was abolished at the same time.

Legal basis: Announcement of the Ministry of Housing and Urban-Rural Development of the People's Republic of China on Issuing Industry Standards for Urban Road Engineering Construction and Quality Acceptance Specifications The "Code for Construction and Quality Acceptance of Urban Road Engineering" is hereby approved as an industry standard, numbered CJJ1-2008, which will be implemented as of September 1, 2008. Among them, Article 1 is a mandatory provision and must be strictly enforced.

The original industry standard "Municipal Road Engineering Quality Inspection and Evaluation Standard" CJJ1-90 was abolished at the same time.

This specification is published and distributed by China Architecture and Building Press, organized by the Institute of Standards and Quotas of our ministry.

Legal Analysis: The Measures for the Acceptance of the Completion (Delivery) of Highway Projects and the Implementation Rules have been adopted by the 6th Ministerial Council on March 15, 2004, and are hereby promulgated and shall come into force on October 1, 2004. These measures apply to the completion (delivery) acceptance activities of new and reconstructed highway projects within the territory of the People's Republic of China.

Highway Engineering Completion (Delivery) Acceptance Measures and Implementation Rules" include highway engineering completion (delivery) acceptance measures, highway engineering (delivery) acceptance measures implementation rules, etc.

Legal basis: "Highway Engineering Completion (Delivery) Acceptance Measures and Implementation Rules" Article Bihe Yiyi Hui or Article In order to further standardize and improve the completion (delivery) acceptance of highway projects, according to the "Highway Engineering Completion (Delivery) Acceptance Measures" (Ministry of Communications Order No. 3 of 2004), these rules are formulated.

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 "flushing 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 form is calculated in accordance with the method specified in 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 actual judgment 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 deduction of points shall not be increased according to the terms given in the "Highway Engineering Quality Inspection and Evaluation Standards" (JTGF80 1-2004), and the deduction points should also be 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 reduction of quality assurance data shall be carried out 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 the "complete" should be filled in directly if the points are not deducted.

9. The score in the engineering quality rating column should be the sub-item (process) project score after deducting the appearance of the subtraction and the quality assurance data subtraction, 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, it shall make the necessary description of the quality level and appearance, and shall not deduct points for the self-assessment of the construction unit.

Rolling procedure, rolling speed, rolling times provided by the test section, generally in accordance with the following provisions:

1.The rolling water content should be around the optimal water content.

2.Rolling should follow the procedures and processes determined by the production test section, and the rolling procedure is light first and then heavy, from edge to middle, from low to high. Pay attention to the voltage stabilization should be sufficient, the vibration pressure should not wave, and it should not be moved.

When compaction, you can first stabilize the pressure (the number of passes is moderate, and the degree of compaction reaches 90%), start light vibration rolling, then heavy vibration rolling, and then use a rubber tyre roller to roll the smooth surface.

3.Under normal circumstances, the length of a rolling should not exceed 80 meters. Rolling paragraphs must be clearly defined, clearly marked with sections, and someone in charge. When rolling, it should overlap 1 2 wheels wide.

The roller should be reversing lightly and smoothly to prevent the gear reed from pulling the base layer. When stabilizing the pressure for the first time, the reverse should be returned to the original way as much as possible, and the shift position should be on the pressed section. At the unrolled end, the shift and reverse position should be staggered into a toothed shape. When there is an individual contract, it should be bulldozed by the workers.

5.The rolling speed and the number of passes should be determined by the test section of the paving. The roller for voltage stabilization is rolled from the edge to the middle, the first 1 2 times, and its speed is generally. After that, it should be done all over again. The number of rollers is increased according to the needs of the project and the length of construction per day.

6.When the roller stops, it should be parked on the road section that has been rolled, and the position should be staggered, with a distance of not less than 3 meters. It is strictly forbidden for the roller to turn around or brake sharply on the road section that has just been completed or is being rolled, so as not to cause damage to the base layer.

7.The rolling should be completed before the final setting of the cement and within the delay time determined by the test, and the required degree of compaction should be achieved, and there is no obvious wheel track.

8.In the process of rolling, if there is a phenomenon of "spring", looseness, waves, etc., it should be turned over in time and remixed (add an appropriate amount of cement) or treated by other methods.

9.During the construction of the base layer, it is strictly forbidden to level with a thin layer of patching.

10.Quality control during rolling:

1) The surface should always be kept moist, if the water evaporates too quickly, and the local looseness and pressure are not compact, a small amount of water should be sprinkled in time, but it is strictly forbidden to sprinkle too much water for rolling.

2) The trial destruction inspection personnel will test the moisture content of the mixture on site, and when any abnormalities are found, they will feedback the information to the mixing plant in time for timely correction.

3) In the process of compaction, the surveyor should track and detect the relative height of the top surface of the loose paving to ensure the thickness of the paving base.

Highway engineering A first oak for completion acceptance needs to meet certain conditions, what are the highway acceptance specifications, let me explain to you today.

Highway Acceptance Specification Standard Celery Ridge:

1. The problems left behind by the project quality defects raised by the delivery and acceptance have been dealt with and passed the acceptance by the project legal person.

2. The final accounts of the project have been prepared in accordance with the methods prescribed by the Ministry of Communications, and the final accounts have been audited and recognized by the competent department of transportation or its authorized units.

3. The completion documents have been completed in accordance with the provisions of the Ministry of Communications.

4. For the projects that need to be accepted for archives and environmental protection, they have been accepted by the relevant departments.

5. All participating units have completed their respective work reports in accordance with the provisions of the Ministry of Communications.

6. The quality supervision agency has passed the project quality inspection and appraisal in accordance with the highway engineering quality appraisal method stipulated by the Ministry of Communications, and formed the project quality appraisal report.

For the acceptance of the completed ground project, the qualification of the materials used should be checked, and the surface layer of the ground project shall not have defects such as ash blasting, cracks, and hollowing. The appearance quality of the general ground surface layer shall comply with the following provisions:

1. The strength and density of each layer on the ground and the firmness of the combination of the upper and lower layers;

2. The slope, thickness, elevation and flatness of each layer of the ground;

3. The size of the gap between the plate and the block and the quality of the caulking;

4. The connection of different types of surface layers, the combination of surface layers and walls and other structural components, such as trenches, pipelines, etc., and patterns.

1. Exterior wall insulation construction specifications and acceptance standards.

The acceptance of exterior wall insulation construction can be divided into the main control project and the general project, and the acceptance methods and standards are as follows: 1. The main control project 1, the materials used in the insulation system must meet the design requirements and the relevant provisions of this regulation; 2. The thickness of the insulation board and the structure and details of the insulation system should meet the requirements of building energy-saving design, and the allowable deviation of the thickness of the insulation layer (design thickness is) is +, 3. The insulation layer must be firmly bonded between the wall; 4. The plastering glue and the insulation board must be firmly bonded, and the surface layer must be free of defects such as ash blasting and cracks. 2. General project 1, alkali-resistant mesh should be laid tightly, the lap width should not be less than 100mm, and the alkali-resistant mesh should meet the design requirements of the reinforced part; 2. The surface of the insulation layer and the plastering layer should be smooth and clean, and the line angle should be straight and clear; 3. Pay attention to the allowable deviation of the installation of the insulation board and the allowable deviation of the plastering layer.

2. What are the engineering quality regulations in China?

The quality of the foundation works and the main structure of the building must be ensured within a reasonable service life. When the construction project is completed, the roof and wall shall not leave quality defects such as leakage and cracking; for quality defects that have been discovered. The construction project implements a quality warranty system.

The warranty scope of construction projects shall include foundation engineering, main structure engineering, roof waterproofing engineering and other civil engineering, as well as installation engineering of electrical pipelines, water supply and water pipelines, heating and cooling system engineering, etc.; The duration of the warranty shall be determined in accordance with the principle of ensuring the normal use of the building within a reasonable life span and safeguarding the legitimate rights and interests of users. The specific warranty scope and minimum warranty period are specified by ***.

Article 4 of the Measures for the Completion (Delivery) Acceptance of Highway Projects stipulates that the acceptance of highway projects is divided into two stages: delivery acceptance and completion acceptance. Delivery acceptance is to check the implementation of the construction contract, evaluate whether the quality of the project meets the technical standards and design requirements, whether it can be handed over to the next stage of construction or whether it meets the requirements of opening to traffic, and conduct a preliminary evaluation of the work of each participating unit. Completion acceptance is a comprehensive evaluation of the construction results of the project, and a comprehensive evaluation of the project quality, participating units and construction projects.

Legal analysis: For the acceptance of the completed ground project, the qualification of the materials used should be checked, and the surface layer of the ground project shall not have defects such as ash blasting, cracks, and hollowing. The appearance quality of the general ground surface layer shall comply with the following provisions:

1. The strength and density of each layer of the ground and the solidity of the upper and lower layers, the slope, thickness, elevation and flatness of each layer of the ground, the size of the gaps between the plates and blocks and the quality of the caulking, the connection of different types of surface layers, the combination of the surface layer and the wall and other structural components, such as trenches, pipelines, etc., and patterns. The allowable deviation of the surface of each layer is slippery with the horizontal plane or the design slope for the corresponding size of the room, and the maximum deviation shall not exceed 3%, for the exclusion of liquid, the surface layer with slope shall be tested for splashing water, and the liquid can be excluded as qualified, and there shall be no flooding and water accumulation.

Legal basis: "Construction Law of the People's Republic of China" Article 61 The construction project delivered for completion and acceptance must meet the specified construction project quality standards, have complete engineering technical and economic information and signed project warranty, and have other completion conditions stipulated by the state. After the completion experience of the construction project is qualified, it can be delivered for use, and if the acceptance is unqualified, it shall not be delivered.