Three-roller shaft is mainly used for concrete compaction;
Slipform is a construction method of continuous casting.
Track mechanical paving is the process of spreading cement concrete evenly with mechanical equipment.
Their differences can be summarized as the following three aspects:
1. Different functions:
Three-roller shaft is mainly used for concrete compaction.
Slipform is a construction method of continuous casting.
Crawler mechanical paving is used to spread cement concrete evenly on the road surface.
2. Different construction methods:
Three rollers compact concrete by gravity and vibration.
Slipform slides along a predetermined route by moving the formwork system, and concrete is poured and compacted quickly in the formwork.
Track mechanical paving uses mechanical equipment to continuously lay concrete at a set construction speed, and carries out preliminary compaction and adjustment.
3. Different construction effects:
The three-roller shaft can adjust the vibration frequency and amplitude to meet different engineering requirements.
Slipform can realize efficient and rapid construction and ensure the smoothness and uniformity of pavement.
Track mechanical paving can spread concrete evenly to ensure the uniformity and quality of pavement.
Three-wheel roller:
Three-roller shaft is a kind of compaction equipment, which is usually used to complete the compaction of cement concrete pavement. It consists of three road rollers, which use gravity and vibration to compact concrete to make it solid and dense. The vibration frequency and amplitude of the three-roller shaft can be adjusted to meet different engineering requirements, and the weight of the roller shaft can also be adjusted to control the compaction effect.
1. Advantages:
The compaction effect is good, and the concrete can be compacted more firmly and compactly.
The operation is relatively simple and easy to use.
The vibration frequency and amplitude can be adjusted to meet different engineering requirements.
2. Disadvantages:
The working speed is slow and the efficiency is relatively low.
It needs a lot of manpower to participate in the operation, and the labor intensity is high.
Sliding mode:
Slipform is a special construction method, which is used for direct and continuous construction of cement concrete pavement. It slides along the predetermined route by moving the formwork system, and at the same time, concrete is poured and compacted quickly in the formwork. Slipform can realize efficient and fast construction and ensure the smoothness and uniformity of pavement.
1. Advantages:
Continuous casting molding, the construction speed is relatively fast.
The smoothness and uniformity of the road surface can be ensured.
The construction is completed at one time, which reduces the influence of joints on pavement performance.
2. Disadvantages:
The equipment cost is high, and special sliding mode mechanical equipment is needed.
The technical requirements for construction personnel are high, and they need to be trained and skilled in operation skills.
Crawler paver:
Track mechanical paving is a kind of mechanical equipment, which is used to spread cement concrete materials evenly on the road surface to form a flat road surface layer. Through the paving head at the front end of the paving machine, it continuously paves the concrete at a set construction speed, and at the same time carries out preliminary compaction and adjustment to ensure the uniformity and quality of the pavement.
1. Advantages:
It can realize efficient and uniform paving and improve construction efficiency.
Mechanized operation, reducing manpower demand.
The thickness and uniformity of concrete can be controlled.
2. Disadvantages:
The cost of mechanical equipment is high.
The requirements of pavement layout are high, so it is necessary to plan the construction trajectory in advance.
The technical requirements for operators are high, and they need to master the operation of mechanical equipment skillfully.
If the project requires rapid completion and there is no construction space limitation, slipform or track mechanical paving may be a better choice. If the project scale is small and the budget is limited, the three-roller shaft may be an economical choice. In practical application, decisions are made according to the characteristics and needs of specific projects.
Engineering requirements: first of all, we should understand the specific requirements of the project, including the thickness and smoothness requirements of the pavement. Different construction methods are suitable for different engineering requirements.
Construction conditions: consider the conditions of the construction site, including space constraints, terrain conditions, traffic conditions, etc. Sometimes the limitation of construction site may affect the feasibility of a certain construction method.
Construction efficiency: Evaluate the efficiency of construction methods according to the construction period and project requirements. Slipform and crawler-type mechanical paving are usually more efficient than three-roller shaft and can complete large-area construction quickly.
Cost consideration: evaluate the cost of different construction methods, including equipment input, labor cost and transportation cost. The equipment investment of track machinery paving is high, but it may have lower comprehensive cost in large-scale construction.
Technical requirements for personnel: Different construction methods have different technical requirements for operators. Consider the technical ability and training cost of the existing team.