Is there a difference between minor road repair and maintenance and daily maintenance?

Minor repairs and maintenance include minor road repairs and routine maintenance. Minor repair is to deal with some small pavement diseases on a daily basis, such as digging and repairing potholes, lining subsidence, etc. Daily maintenance is mainly based on road cleaning. Don't know if you're satisfied?

Different maintenance is judged according to the driving condition of the vehicle, if the road is told to run too much, if necessary, you can clean the carbon deposits of the lower throttle to ensure that the air supply is sufficient to keep the fuel fully burned.

Routine maintenance is generally to change the engine oil, change the air filter, change the oil filter, etc., major maintenance may need to change the spark plug to change the transmission oil, etc., and the minor repair involves the repair of the equipment, and the specific situation should be judged according to the test.

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.

The content is that the road personnel or corresponding workers carry out preventive maintenance and repair the slightly damaged parts of the highway and all its engineering facilities, so that they are always kept in good condition.

Maintenance operations include: removing mud and debris from the road surface and keeping the road surface clean and tidy; Remove water, snow, ice and sand from the road, lay anti-skid materials, dust killers or compacted snow to maintain traffic; Scraping the sand pavement and repairing the ruts; Gravel pavement is even, sweep surface sand, add surface sand, sprinkle water to moisten, scrape waves, and repair wear layer; Deal with asphalt pavement oil, packing, cracks, loose and other diseases; Daily cleaning, filling and plugging cracks of cement concrete pavement; Repair and whitewashing of curbs. Minor repair assignments include:

Locally treat the slurry deformation of the gravel road, and add stabilizers; Gravel pavement repairs potholes, settlement, repairs the wear layer or sweeps the grout and lays the sand; the treatment of the bridge head and culvert jumping car; Asphalt pavement repairs potholes and subsidence, and deals with diseases such as waves, local cracks, and edge gnawing; Partial repair of cement concrete pavement slabs. Tidy up the shoulders and slopes, trim the shoulders and the grass and trees in the dividers, remove debris, and keep the road clean and tidy; Dredging gutters to keep the drainage system unblocked; Remove weeds that hinder the function of the facility due to the growth of retaining walls and slope protection, repair expansion joints, dredge drainage holes, and remove loose stones.

Minor repair operations include: excavation of side ditches in small sections, interception ditches or paving side ditches in stages; Removal of sporadic landslides, filling of roadbed gaps, and treatment of slight subsidence and slurry; The handling of bridgehead wiring or bridgehead and culvert jumping car; Repair local damage to retaining walls, slope protection, ramp protection, drainage tanks, guardrails and anti-ice and snow facilities; Local reinforcement of the shoulder. Frequent daily operations are carried out on all components of the highway (including ancillary facilities) as needed each year, with the aim of maintaining the original good condition and service level of the highway.

The daily maintenance operations mainly include: cleaning of the road surface and other parts; repair of minor damage and sporadic replacement of facilities; mowing and branch pruning; snow and ice removal in winter; and emergency treatment for the resumption of occasional disruptions to traffic.

Generally, the method of regularly inspecting changes in road conditions is used to assess the quality of road maintenance. Some industrially developed countries mainly inspect the performance of Peijianye pavement, including technical indicators such as damage rate, unevenness, slip resistance and overall strength, so as to determine scientific maintenance countermeasures. Since the 60s, China has been inspecting and evaluating five items of road surface, roadbed, bridges and culverts, marking and greening on a 100-point scale.

The overall maintenance quality requirements are: smooth road surface, moderate road arch, smooth driving; The shoulder is clean, the slope is stable, and the drainage ditch is unblocked; The bridge and culvert structures are intact and clean; The label is perfect and distinct; The roadside greening and the road trees in the Yilin road section are complete.

Make detailed records of the parts and numbers that do not meet the above requirements, and deduct points according to the unified regulations. The maximum score for each item is 50 points for pavement, 20 points for subgrade, and 10 points for each of the other three items.

And according to the score obtained per kilometer, the road conditions are divided into excellent, good, secondary, poor four, etc., and the percentage of excellent and good roads in the total mileage (good road rate) in the road section managed by each road maintenance unit is taken as the main indicator to assess the quality of the maintenance work of the unit. According to the rise and fall of the good road rate and the increase or decrease of the poor road to evaluate its performance, and accordingly grasp the changes in road conditions, accumulate data, in order to formulate the next maintenance work plan.

The work carried out to keep the highway in good condition at all times, to prevent the deterioration of its quality of use, and to provide good service to the road users.

After the highway is completed and opened to traffic, due to the wear and impact of the wheels, the erosion and weathering of natural forces such as heavy rain, floods, sandstorms, ice and snow, sunshine, ice melting, reeds, man-made damage and some defects left during construction, the quality of highway use will gradually decrease. Therefore, after the highway is completed and opened to traffic, it is necessary to take measures to maintain and repair the vertical bridge, and constantly update and improve. Highway maintenance must repair the damaged part in time, otherwise it will lead to increased investment in repair projects, shorten the service life of the road, and cause losses to road users.

Highway maintenance must also pay attention to emergency services and emergency repairs to keep the highway unimpeded. In China and other developing countries, highway maintenance also needs to carry out partial improvements, updates, and additions to road sections, structures, and facilities along the route that are too low in the original technical standards, so as to improve the traffic capacity and service level of highways.

Since the 70s, many countries have taken the strengthening of maintenance as an important technical policy for highway work, and the proportion of maintenance investment in total road investment has increased rapidly, and some have greatly exceeded the investment used for construction. The Permanent Association of International Road Conferences (PIARC) established the Technical Committee on Conservation in 1979 and has convened several meetings over the years to study conservation issues. The 17th World Road Conference was held in Sydney in 1983.

Data show that as of 2012, the national highway maintenance mileage reached 10,000 kilometers, a year-on-year increase, and the proportion of the national highway maintenance mileage in the total highway mileage reached, an increase of one percentage point over the end of the previous year.

In the era of "building instead of maintenance", road maintenance has been put on the back burner, and the national road maintenance coverage rate was only 78% in 2006; With the exposure of insufficient maintenance, the idea of highway management has gradually moved closer to "paying equal attention to construction and maintenance", and the road maintenance ratio has risen to 2012 in one fell swoop, and the era of full road maintenance has arrived. However, in the past few years, road maintenance has been more about the change in the "quantity" of coverage, and the lack of "quality" improvement, and the majority of minor repairs and small repairs have lacked in-depth maintenance. During the "Eleventh Five-Year Plan" period, the country's cumulative funds for road maintenance are about 801.1 billion yuan, which is only the investment in new roads in the same period, which is not only far lower than the developed countries in the post-maintenance period, but also lower than other developing countries such as Brazil and Mexico.

During the "Twelfth Five-Year Plan" period, the concentrated outbreak of long-term accumulated maintenance demand will force the highway management idea to change to "maintenance priority", and the large-scale application of deep maintenance such as medium and major repairs and pre-maintenance will force maintenance investment to accelerate the upward trend.

The setting of Yangmeng defense safety facilities is to protect the safety of maintenance and repair workers and equipment, and to warn, remind and guide vehicles and pedestrians to strengthen their awareness of safety precautions through the maintenance and repair operation control area.

Winter Snow Removal Safe Operation:

1. Traffic control should be strengthened during snow removal operations.

2. Snow removal should be mainly mechanical, and it can be supplemented by manual and snow in places where mechanical snow removal cannot be operated.

3. In addition to the relevant provisions of this chapter, snow removal operators and snow removal machinery should take anti-skid measures.

Safe operation during the rainy season:

1. The on-site road should be strengthened and maintained, and the ramp and scaffold should have anti-skid measures.

2. Before and after the rainstorm and typhoon, the temporary facilities, scaffolding, mechanical and electrical equipment, and temporary lines of the construction site should be inspected, and the tilting, deformation, sinking, leakage, rain leakage and other phenomena should be repaired and strengthened in time.

3. During maintenance and repair operations in the rainy season, the operation site should be removed from the water in time, the uphill and downhill slopes of the sidewalks should be dug with ladders or sand paved, and anti-skid measures should be taken on scaffolding, ramp boards and springboards. Strengthen the inspection of row frames, scaffolding, and earthworks to prevent overseas Chinese and collapse.

4. For projects that operate in the rainy season for a long time, rainproof shelters should be erected according to the conditions. In case of a storm during the operation, the construction should be stopped.

Foggy maintenance and maintenance safe operation:

1. Maintenance and repair operations are not suitable for foggy days.

2. When emergency repairs are needed in foggy days, it is advisable to close the traffic for operation in conjunction with relevant departments, and yellow construction warning lights must be set up on all safety facilities.