1. Provisions on the thickness of structural layer: According to the budgetary estimate quota, the compaction thickness of graded macadam and graded gravel pavement of various stabilized soil bases is within 15cm, the compaction thickness of the first layer of interstitial macadam is within 12cm, the compaction thickness of cushion and other bases is within 20cm, and the compaction thickness of surface layer is within 15cm. Tractors and graders. If the compaction thickness exceeds the above, the number of tractors, graders and rollers will be doubled according to the quota, and 3.0 man-days will be increased every 1000m2.
2. Subbase shall be implemented according to the provisions of subbase quota: when all kinds of stabilized soil subbase adopt stabilized soil subbase quota, the number of smooth rolling passes will be reduced by 0. 12 ~ 15t per 1000m2 pavement.
3. Provisions on the conversion of mix proportion: The material consumption in various stabilized soil base quotas is compiled according to a certain mix proportion. When the design mixture ratio is different from that indicated in the quota, the dosage of related materials must be converted; The asphalt mixture in the quota is prepared according to a certain asphalt-aggregate ratio. When the designed asphalt-aggregate ratio is different from the quota, the asphalt content in the quota can be adjusted according to the designed asphalt-aggregate ratio.
4. Provisions on additives (materials) in asphalt mixture: The cost of anti-stripping measures to ensure the adhesion between stone and asphalt is not considered in the quota of asphalt pavement. If necessary, the cost should be calculated according to the nature of the stone and the anti-peeling measures proposed in the design. The quota of stone matrix asphalt is compiled by adding lignin fiber. If other fibers are used as additives in the design, the amount of fibers in the quota can be adjusted according to their amount.
5. Provisions on opening traffic after spraying prime coat oil: prime coat cannot be paved in time after spraying prime coat asphalt on granular base. If it is necessary to open construction vehicles, 0.83m3 coarse sand and 0. 1000㎡6 ~ 8t smooth roller shall be added every 65,438m2; The asphalt content is multiplied by the coefficient 1. 1.
6. Provisions on transportation distance and water fee of sprinklers in pavement engineering: The subheadings listed in the pavement engineering quota are compiled according to the water intake of sprinklers within 5 ″, excluding water fee.
For relatively arid provinces (such as Northwest China and Tibet), there is no natural water source available near the construction site, and when water supply (such as tap water) must be used by the water supply department, it is necessary to increase the water fee, and the number of sprinklers can be increased according to the quota subtitle; ?
Calculate the fixed water consumption according to 35m3 per shift, and multiply it by the water price and water fee stipulated by the water supply department. The average transportation distance of sprinklers in pavement engineering is less than 5km. When the average transportation distance of sprinklers exceeds 5㎞ in actual construction, the machine-team consumption of sprinklers can be increased according to the transportation quota increased in the sprinkler quota of subgrade engineering.
7. Provisions on compaction width of pavement engineering: The machine-shift consumption of road roller in pavement engineering quota shall be considered according to the pavement width of more than two lanes. For example, when the actual construction design is single-vehicle pavement width, it is necessary to adjust the machine-shift consumption of the roller, that is, the coefficient of two-wheel smooth roller is multiplied by 1. 14, the coefficient of three-wheel smooth roller is multiplied by 1.33, and the coefficient of tire roller and vibratory roller is multiplied by 65438+.
8. Provisions on transportation distance and freight of mixture for pavement engineering: The quota items for transporting stabilized soil mixture, asphalt mixture and cement concrete by dump trucks for pavement engineering are only applicable to 15㎞. When the average transportation distance exceeds 15㎞, the transportation cost shall be calculated according to the relevant regulations on social transportation.
When the transportation distance exceeds the first fixed transportation distance unit, the mantissa of the transportation distance is less than half of a fixed transportation distance unit, and when it exceeds half, it is calculated as a fixed transportation distance unit. Paving quota of cement pavement paver includes 1km water concrete transportation. When the transportation distance of cement concrete exceeds 1km during construction, the freight increase fee shall be calculated according to the concrete transportation tanker corresponding to the quota.
The subsidy price in the extended information is determined according to different road grades and cement stabilized layer thickness. Generally speaking, the county and township two-level secondary roads are 24 cm, the tertiary roads are 22 cm, the tertiary roads are 20 cm, and the rural village roads are 18 cm.
According to the above classification, the subsidy price is 650,000 yuan per kilometer for the second-class highway, 500,000 yuan per kilometer for the third-class highway, 350,000 yuan per kilometer for the fourth-class highway, and 200,000 yuan per kilometer for the village-to-village highway. The above is the most basic subsidy price, which basically meets the needs of the construction budget. Of course, there are also many places that build their own highways with higher grades, and some funds need to be raised by themselves.
Finally, I would like to remind you that in building roads in rural areas, you must not illegally occupy cultivated land and housing resources, otherwise you will be severely punished. Moreover, elevation measurement should be done well during construction to avoid blocking the drainage route and causing local water accumulation when it rains. If there is a dispute, it will not be worth the loss.