What are the major and medium repair projects of rural road maintenance projects?

1. The content of the assignment is different

1) The operation content of the special maintenance project includes:

1. Comprehensive repair of retaining walls, slope protection, drainage tanks, etc.

2. Pave side ditches and curbs.

3. Renovate and add side ditches, interception ditches, etc.

4. Remove large landslides and treat large areas of slurry.

5. Treatment of local soft soil foundation.

2) The operation content of the large and medium repair project is as follows:

1. Dismantle, reconstruct or add larger retaining walls, slope protection and other protective projects.

2. Repair of major water-damaged roadbed.

3. Treatment and restoration of the whole section of soft soil foundation.

Summary. Hello, the content of the pavement overhaul project includes: 1. Dealing with the weak section of the roadbed; 2. Overhaul and drainage projects; 3. Repair the pavement base layer; 4. Clean up the old road surface; 5. Trimming and protection engineering; 6. Re-pavement construction; 7. Clean up the on-site greening project.

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Hello, the content of the pavement overhaul project includes: 1. Dealing with the weak section of the roadbed; 2. Overhaul and drainage projects; 3. Repair the base layer of Shenxiao pavement; 4. Clean up the old road surface; 5. Trim the Huai Blind Pai Lead He Protection Project; 6. Re-pavement construction; 7. Clean up the on-site greening project.

Summary. 1. Deal with the weak section of the roadbed; 2. Overhaul and drainage projects; 3. Repair the pavement base layer; 4. Clean up the old road surface; 5. Trimming and protection engineering; 6. Re-pavement construction; 7. Clean up the on-site greening project.

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1. Deal with the weak section of the roadbed; 2. Overhaul and drainage projects; 3. The layer of the pavement foundation is not repaired; 4. Clean up the old road surface; 5. Repair and repair shed protection project; 6. Re-pavement construction; 7. Clean up the on-site greening project.

The contents of the pavement overhaul project are: 1. Dealing with the weak section of the roadbed; 2. Overhaul and drain the project; 3. The poor cover disturbs and repairs the pavement base; 4. Clean up the old road surface; 5. Trimming and protection engineering; 6. Re-pavement construction; 7. Clean up the on-site greening project.

The principles of road overhaul are as follows:

1. Deal with the weak section of the roadbed; 2. Overhaul and drainage projects; 3. Repair the pavement base layer; 4. Clean the slag and take care of the old road surface; 5. Trimming and protection engineering; 6. Re-pavement construction; Liliang erection 7, clear limb Dali on-site greening project.

1. The content of the assignment is different

1) The operation content of the special maintenance project includes:

1. Comprehensive repair of retaining walls, slope protection, drainage tanks, etc.

2. Pave side ditches and curbs.

3. Renovate and add side ditches, interception ditches, etc.

4. Remove large landslides and treat large areas of slurry.

5. Treatment of local soft soil foundation.

2) The operation content of the large and medium repair project is as follows:

1. Dismantle, reconstruct or add larger retaining walls, slope protection and other protective projects.

2. Repair of major water-damaged roadbed.

3. Treatment and restoration of the whole section of soft soil foundation.

In the Henan Provincial Department of Communications, there are corresponding provisions, the classification of highway maintenance projects is provisional, according to the nature of the project, the size, the technical complexity is divided into minor repairs and maintenance, repairs, major repairs, four categories of reconstruction, the division principles are as follows:

1. Minor repair and maintenance projects. It is to carry out preventive maintenance and repair of the slightly damaged parts of the highway and all its engineering facilities, so that it is always kept in good condition. It is usually carried out by the road (ferry) class within a year's minor repair and maintenance quota fund, according to the climate characteristics, according to local conditions, on a monthly basis, and often carry out work.

2. Medium repair project. It is to repair and reinforce the general wear and tear and local damage of the highway and its engineering facilities to restore the original state. Such as asphalt (residue) pavement sealing covering, local repair of roadbed and artificial structures or replacement of individual components, as well as local cutting and straightening of roadbed, addition and reconstruction of culverts, and small structures of Daoban real estate.

Medium repair is generally a highway after use, every few years to carry out periodic repair work, its single project investment, generally less than 50,000 yuan.

3. Overhaul project. It is to carry out a comprehensive comprehensive treatment and major repair of the major damage to the highway and its engineering facilities, so as to restore the original design standard, and within the original design standard, local improvement and individual addition to improve the traffic capacity. If the road surface is seriously damaged after use, it must be comprehensively renovated or reinforced and resurfaced, as well as partially improve the alignment, widen the roadbed and pavement, reconstruct and build small and medium-sized bridges and other medium-sized artificial structures.

Overhaul is generally a comprehensive repair work carried out on all parts of the highway on a regular basis. The investment in a single project is generally more than 50,000 yuan and less than 300,000 yuan.

4. Renovation project. It is to improve the technical level of the highway and its engineering facilities in stages and sections because they do not meet the existing traffic volume and load needs, or significantly increase the traffic capacity through improvement to meet the transportation requirements. For example, the whole section of the whole line is widened, the roadbed is heightened, the alignment is improved, the high-grade and sub-high-grade pavement is reconstructed, and the bridge and other large-scale artificial structures are reconstructed, and the investment in a single project or sectional project is generally more than 300,000 yuan.

Highway subgrade maintenance projects are divided into three categories: maintenance, special projects and overhaul projects according to their operational characteristics. The work contents of repair and maintenance are:

1.Renovate the shoulders and slopes, trim the shoulder grass, remove the debris in the retaining walls, slope protection, guardrails, water collection wells and drainage tanks, etc.;

2.dredging gutters and repairing curbs;

3.Excavation and cutting of side ditches in small sections;

4.Clearing subgrade landslides and filling gaps;

5.partial renovation of retaining walls, slope protection, drainage tank masonry, etc.; 6.Reinforcement of the shoulder.

The operation content of the special project is as follows:

1.Comprehensive repair of retaining walls, slope protection, drainage tanks, etc.;

2.paving gutters and curbs;

3.renovation, addition of side ditches, interception ditches, etc.;

4.Remove large landslides and treat large areas of slurry;

5.Treatment of local soft soil foundations.

The work content of the overhaul project is as follows:

1.demolition, reconstruction or addition of larger retaining walls, slope protection and other protective works;

2.Rehabilitation of roadbeds damaged by major floods;

3.Treatment and restoration of the entire section of soft soil foundation.

Eighth according to the characteristics of highway maintenance management, highway maintenance projects according to the content of the work, nature, complexity, scale and so on are divided into: minor repair and maintenance projects, special projects and major repair projects three categories.

1) Minor repair and maintenance works: refers to the preventive maintenance and repair of minor damage to the highway and its ancillary facilities in order to maintain the normal use of the expressway and its ancillary facilities. The main objective of minor repair and maintenance works is to maintain the original road condition and the quality of use.

2) Special engineering: refers to the general wear and tear and local damage of the highway and its ancillary facilities, repair, reinforcement, renewal and improvement of the operation, in order to extend the service life of the highway and improve the level of preventive maintenance.

3) Overhaul project: refers to the periodic comprehensive repair of the expressway and its ancillary facilities that have reached the service period, so that it can fully restore the original design standard state of the project.