冷再生机租赁施工的效率与质量，受环境条件、材料特性、设备状态及操作水平等多方面因素影响，这些因素相互作用，直接关系到施工进度与再生路面的后期性能，需在施工前充分评估并制定应对措施。

　　The efficiency and quality of cold recycling machine rental construction are influenced by various factors such as environmental conditions, material characteristics, equipment status, and operation level. These factors interact with each other and directly affect the construction progress and the later performance of the recycled pavement. It is necessary to fully evaluate and formulate countermeasures before construction.

　　环境条件是影响施工的关键因素。气温对冷再生机施工影响显著，适宜温度通常在 10-30℃，低于 5℃时，再生混合料的黏结性会下降，易出现松散现象，需采取覆盖保温措施；高于 35℃时，混合料水分蒸发过快，会导致碾压时难以成型，需增加洒水频次以保持适宜湿度。降水天气会直接中断施工，雨水会降低混合料的稳定性，使路面出现翻浆，因此施工前需关注天气预报，避开雨天，若施工中遇短时阵雨，需立即停止作业并覆盖未碾压路段，待路面干燥后重新处理。风力过大（超过 5 级）会加速混合料表面水分流失，导致局部干硬，影响整体平整度，此时需调整施工速度，并在再生路段两侧设置挡风屏障。

　　Environmental conditions are a key factor affecting construction. The temperature has a significant impact on the construction of the cold recycling machine. The suitable temperature is usually 10-30 ℃. When it is below 5 ℃, the bonding of the recycled mixture will decrease, and it is easy to loosen. Therefore, covering and insulation measures need to be taken; When the temperature is above 35 ℃, the moisture in the mixture evaporates too quickly, which can make it difficult to form during rolling. It is necessary to increase the frequency of watering to maintain appropriate humidity. Rainy weather will directly interrupt construction, and rainwater will reduce the stability of the mixture, causing the road surface to turn over. Therefore, before construction, it is necessary to pay attention to the weather forecast and avoid rainy days. If there is a short-term shower during construction, the operation should be stopped immediately and the uncompacted road section should be covered. After the road surface is dry, it should be reprocessed. Excessive wind force (exceeding level 5) will accelerate the loss of moisture on the surface of the mixture, causing local dryness and hardness, affecting the overall flatness. At this time, it is necessary to adjust the construction speed and set up windbreak barriers on both sides of the regeneration section.

　　原路面材料特性对施工效果影响较大。原路面的沥青含量、集料级配及含水量，直接决定再生混合料的配合比设计。若原路面沥青老化严重，需增加再生剂用量以恢复其黏结性；集料粒径不均匀，会导致再生混合料摊铺时出现离析，需在铣刨过程中通过筛分装置过滤超粒径颗粒。原路面的含水量是关键指标，过高会使混合料黏附在铣刨鼓上，造成摊铺困难；过低则需额外洒水调整，水分调控不当会导致碾压后出现弹簧现象，影响结构强度。

　　The characteristics of raw pavement materials have a significant impact on the construction effect. The asphalt content, aggregate gradation, and moisture content of the original pavement directly determine the mix design of recycled mixtures. If the original pavement asphalt is severely aged, it is necessary to increase the amount of rejuvenator to restore its adhesion; Uneven aggregate particle size can cause segregation during the paving of recycled mixtures, and oversized particles need to be filtered through a screening device during the milling process. The moisture content of the original road surface is a key indicator. If it is too high, the mixture will adhere to the milling drum, causing difficulty in paving; If it is too low, additional watering adjustment is required. Improper moisture control can lead to spring phenomenon after rolling, affecting the structural strength.

　　设备状态与参数设置影响施工质量。冷再生机的铣刨深度需与原路面病害匹配，过深会增加混合料用量且影响基层稳定性，过浅则无法彻底处理路面病害，通常根据路面破损程度设定在 5-15 厘米。铣刨鼓转速与前进速度的匹配至关重要，转速过低会导致混合料破碎不充分，出现大块集料；前进速度过快会使铣刨不均匀，需根据集料硬度调整两者比例。碾压设备的吨位与碾压次数也需适配，初压宜用轻型压路机稳定混合料，复压用重型压路机增强密实度，终压用轮胎压路机消除轮迹，碾压次数不足会导致密实度不够，过多则易出现推移现象。

　　The equipment status and parameter settings affect the construction quality. The milling depth of the cold recycling machine needs to match the original road surface damage. If it is too deep, it will increase the amount of mixture and affect the stability of the base layer. If it is too shallow, it cannot completely treat the road surface damage. Usually, it is set at 5-15 centimeters according to the degree of road damage. The matching between the milling drum speed and the forward speed is crucial. If the speed is too low, it will lead to insufficient crushing of the mixture and the appearance of large aggregates; Excessive forward speed can cause uneven milling, and the ratio between the two needs to be adjusted according to the hardness of the aggregate. The tonnage of the compaction equipment and the number of compaction times also need to be adapted. For initial compaction, a lightweight roller should be used to stabilize the mixture, for secondary compaction, a heavy-duty roller should be used to enhance the compactness, and for final compaction, a tire roller should be used to eliminate wheel marks. Insufficient compaction times can lead to insufficient compactness, while excessive compaction can easily cause displacement.

　　操作人员的技术水平与协调能力同样关键。操作人员需熟悉设备性能，能根据路面变化实时调整参数，若参数调整滞后，会导致局部路段出现起伏。施工团队的配合效率影响整体进度，冷再生机、洒水车、压路机的作业衔接需紧凑，间隔时间过长会使混合料温度或水分流失，增加碾压难度。此外，操作人员对施工规范的执行程度，直接影响路面的平整度与压实度，经验不足的操作人员易出现漏压、过压等问题，导致局部路段后期出现沉降。

　　The technical level and coordination ability of operators are equally crucial. Operators need to be familiar with the performance of the equipment and be able to adjust parameters in real time according to changes in the road surface. If the parameter adjustment lags behind, it may cause local road sections to have undulations. The cooperation efficiency of the construction team affects the overall progress. The operation connection of the cold recycling machine, sprinkler truck, and roller needs to be compact. If the interval time is too long, the temperature or moisture of the mixture will be lost, which increases the difficulty of rolling. In addition, the degree of implementation of construction standards by operators directly affects the smoothness and compaction of the road surface. Inexperienced operators are prone to problems such as leakage and overpressure, which can lead to settlement in some sections of the road in the later stage.

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