What machinery is used to stabilize the water layer?
In road construction, the water-stabilized layer (cement-stabilized gravel layer) is a key structural layer connecting the upper and lower layers, and its construction quality directly affects the service life of the road. Choosing appropriate machinery and equipment is the core to ensuring the efficiency and quality of water-stabilized layer construction. This article combines hot topics on the Internet in the past 10 days to sort out the types, functions and applicable scenarios of machinery commonly used in water-stabilized layer construction, and present it in structured data.
1. Commonly used mechanical equipment for water-stabilized layer construction
| Machine name | Main functions | Applicable scenarios | Popular brands |
|---|---|---|---|
| Stabilized soil mixer | Mix cement and aggregate evenly | Large-scale centralized mixing | Xugong, Liugong, Sany |
| paver | Spread the mix evenly | Main roads with pavement width >5m | Volvo, Dynapac |
| roller | Layered compaction water stabilized layer | Initial pressure/re-pressure/final pressure stages | Shantui, Lingong |
| sprinkler truck | Control the moisture content of the mix | Moisturizing during maintenance period | Dongfeng, liberation |
2. Key points for selecting mechanical equipment
1.Mixer selection: Select production capacity based on project volume. For average daily output of more than 2,000 tons, it is recommended to choose a mixing station of type 500 or above.
2.paver matching: The paving width should be 1.2-1.5 times greater than the designed road width to ensure the density of the overlap.
3.Compaction combination: Recommended "vibratory roller + tire roller" combination, vibratory roller initial pressure (static pressure 1 time + vibration pressure 2 times), tire roller final pressure (not less than 3 times).
3. Recent industry hot technologies
| Technical name | Application advantages | Equipment requirements |
|---|---|---|
| 3D digital paving | Height control accuracy ±3mm | Requires GNSS positioning system |
| Driverless road roller | Rolling trajectory overlap rate 100% | Requires 5G network support |
4. Construction precautions
1. During mechanical joint operation, the number of mixing, transportation, paving, and compaction equipment should be configured in a ratio of 1:4:1:2.
2. The traveling speed of the road roller needs to be controlled at 2-3km/h, and the vibration frequency is recommended to be 30-45Hz.
3. The latest industry data shows that the use of intelligent compaction systems can improve density uniformity by more than 15%.
5. Future development trends
1. The proportion of new energy machinery has increased: electric rollers have achieved 8 hours of continuous operation in actual projects.
2. 5G remote control technology: The remote paver recently demonstrated by Sany Heavy Industry can achieve precise control from a distance of 50km.
3. According to road construction big data in 2023, mechanized construction can reduce material waste by up to 23% compared with manual work.
Summary: The selection of water-stabilized layer construction machinery requires comprehensive consideration of project scale, technical requirements and cost-effectiveness. With the popularization of intelligent equipment, water-stabilized layer construction will rapidly develop in the direction of digitalization and unmanned operation in the future.
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