一、提高基础土壤密实度

1、 Improve the compactness of the foundation soil

1、作用

1. Function

（1）减少孔隙度： 压路机通过其辊筒的振动和重力作用，能够使土壤颗粒之间的孔隙度减小。这样，土壤的密实度得到提高，形成更为紧密的结构，增强了土壤的承载能力。

(1) Reducing porosity: The roller can reduce the porosity between soil particles through the vibration and gravity of its rollers. In this way, the compactness of the soil is improved, forming a more compact structure and enhancing the bearing capacity of the soil.

（2）改善土壤结构： 压路机的运动作用有助于土壤颗粒重新排列，形成更为有序的结构。这种结构改善有助于土壤在承受外力时更加均匀地传递压力，提高整体的密实度。

(2) Improving soil structure: The movement of the roller helps to rearrange soil particles and form a more orderly structure. This structural improvement helps the soil to transmit pressure more evenly when subjected to external forces, improving the overall compactness.

（3）增加土壤的抗压强度： 通过振动和静载荷的作用，压路机能够使土壤颗粒紧密结合，提高土壤的抗压强度。这对于道路基础工程中的路基土壤来说，是确保基础承载能力的关键。

(3) Increasing the compressive strength of soil: Through the action of vibration and static load, the roller can tightly bind soil particles and improve the compressive strength of the soil. This is crucial for ensuring the bearing capacity of the roadbed soil in road foundation engineering.

2、方法

2. Method

（1）振动作业： 震动式压路机通过辊筒的振动作用，能够更好地压实土壤。振动能够促使土壤颗粒在较小的空间内振动，进而形成更为紧密的结构。

(1) Vibration operation: The vibrating roller can better compact the soil through the vibration of the rollers. Vibration can promote soil particles to vibrate in a smaller space, thereby forming a more compact structure.

（2）静载荷： 压路机的辊筒施加的静载荷是通过其自身的重力产生的，使土壤受到均匀的压力。这种静载荷作用下，土壤颗粒逐渐被挤压，形成紧密的排列。

(2) Static load: The static load applied by the rollers of the road roller is generated by its own gravity, causing the soil to be subjected to uniform pressure. Under this static load, soil particles are gradually squeezed and form a tight arrangement.

（3）多次压实： 为了确保土壤的充分密实，通常需要进行多次的压实作业。在不同方向、不同层次上的多次压实，能够使土壤的密实度更为均匀和。

(3) Multiple compaction: To ensure sufficient compaction of the soil, multiple compaction operations are usually required. Multiple compaction in different directions and levels can make the soil more uniform and comprehensive in density.

（4）湿润土壤： 在一些特殊情况下，湿润土壤能够提高土壤颗粒间的黏附性，有助于形成更为紧密的结构。但需要注意避免土壤过于湿润，以免影响压实效果。

(4) Moist soil: In some special cases, moist soil can improve the adhesion between soil particles, helping to form a more compact structure. But it is important to avoid soil being too moist to avoid affecting the compaction effect.

二、改善路基承载力

2、 Improving the bearing capacity of the roadbed

1、改善土壤结构：土壤的承载力与其内部结构密切相关。通过振动和压实，压路机能够改变土壤的物理性质，使土壤结构更加均匀、致密。这种改善有助于提高土壤的整体强度和稳定性。

1. Improving soil structure: The bearing capacity of soil is closely related to its internal structure. Through vibration and compaction, the roller can change the physical properties of the soil, making the soil structure more uniform and dense. This improvement helps to enhance the overall strength and stability of the soil.

2、降低土壤的可压缩性：可压缩性是土壤在受到外力作用时发生变形的性质。通过压路机的作用，土壤中的空隙被填充，土壤的可压缩性降低。这意味着在承受车辆和交通荷载时，土壤的变形程度减小，提高了路基的稳定性。

2. Reduce soil compressibility: Compressibility is the property of soil that undergoes deformation when subjected to external forces. Through the action of the roller, the voids in the soil are filled, and the compressibility of the soil is reduced. This means that when subjected to vehicle and traffic loads, the degree of soil deformation decreases, improving the stability of the roadbed.

3、提高土壤的抗剪强度：路基土壤的抗剪强度直接关系到其对交通荷载的承载能力。通过压路机的振动和压实作业，土壤颗粒之间的黏着力得到加强，从而提高了土壤的抗剪强度，增强了土壤对于水平荷载的抵抗能力。

3. Improving the shear strength of soil: The shear strength of roadbed soil is directly related to its bearing capacity for traffic loads. Through the vibration and compaction operation of the roller, the adhesion between soil particles is strengthened, thereby improving the shear strength of the soil and enhancing its resistance to horizontal loads.

4、减少土壤的渗透性：土壤的渗透性是指水分在土壤中的传导速度，过高的渗透性可能导致路基土壤的软弱和泥化。通过振动和压实，压路机有助于减少土壤的渗透性，防止路基土壤在潮湿条件下失去稳定性。

4. Reduce soil permeability: Soil permeability refers to the speed at which water conducts in the soil. Excessive permeability may lead to the weakness and mudification of the roadbed soil. Through vibration and compaction, the roller helps to reduce soil permeability and prevent the roadbed soil from losing stability under humid conditions.

三、确保路面平整度

3、 Ensure road surface smoothness

1、提高行车舒适性：路面平整度直接关系到车辆在道路上行驶时的平稳程度。压路机通过辊筒的滚动和振动作用，能够有效地将路面的凹凸不平进行调整，从而提高了行车的舒适性。对于用户而言，在平整的道路上行驶更加轻松愉快，减少了驾驶员和乘客的不适感。

1. Improving driving comfort: The smoothness of the road surface is directly related to the smoothness of the vehicle when driving on the road. The roller can effectively adjust the unevenness of the road surface through the rolling and vibration effects of the rollers, thereby improving the comfort of driving. For users, driving on flat roads is more relaxed and enjoyable, reducing discomfort for drivers and passengers.

2、降低车辆磨损：道路表面的坑洼和裂缝容易导致车辆在行驶过程中受到颠簸和冲击，从而加速车辆的磨损。通过压路机对路面进行平整处理，可以减少路面不平对车辆的冲击，延长车辆的使用寿命，减少维修成本。

2. Reduce vehicle wear: The potholes and cracks on the road surface can easily cause the vehicle to experience bumps and impacts during driving, thereby accelerating vehicle wear. By using a roller to level the road surface, the impact of uneven road surface on vehicles can be reduced, the service life of vehicles can be extended, and maintenance costs can be reduced.

3、提高交通性：平整的路面有助于提高车辆的操控稳定性，减少了车辆在行驶过程中的不稳定情况。这对于提高交通性具有积极作用，降低了车辆失控的风险，保障了驾驶人员和行人的。

3. Improving traffic safety: A smooth road surface helps improve vehicle handling stability and reduces instability during driving. This has a positive effect on improving traffic safety, reducing the risk of vehicle loss of control, and ensuring the safety of drivers and pedestrians.

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