冷再生機租賃施工的效率與質量，受環境條件、材料特性、設備狀態及操作水平等多方面因素影響，這些因素相互作用，直接關系到施工進度與再生路面的后期性能，需在施工前充分評估并制定應對措施。

　　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.

　　環境條件是影響施工的關鍵因素。氣溫對冷再生機施工影響顯著，適宜溫度通常在 10-30℃，低于 5℃時，再生混合料的黏結性會下降，易出現松散現象，需采取覆蓋保溫措施；高于 35℃時，混合料水分蒸發過快，會導致碾壓時難以成型，需增加灑水頻次以保持適宜濕度。降水天氣會直接中斷施工，雨水會降低混合料的穩定性，使路面出現翻漿，因此施工前需關注天氣預報，避開雨天，若施工中遇短時陣雨，需立即停止作業并覆蓋未碾壓路段，待路面干燥后重新處理。風力過大（超過 5 級）會加速混合料表面水分流失，導致局部干硬，影響整體平整度，此時需調整施工速度，并在再生路段兩側設置擋風屏障。

　　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.

　　原路面材料特性對施工效果影響較大。原路面的瀝青含量、集料級配及含水量，直接決定再生混合料的配合比設計。若原路面瀝青老化嚴重，需增加再生劑用量以恢復其黏結性；集料粒徑不均勻，會導致再生混合料攤鋪時出現離析，需在銑刨過程中通過篩分裝置過濾超粒徑顆粒。原路面的含水量是關鍵指標，過高會使混合料黏附在銑刨鼓上，造成攤鋪困難；過低則需額外灑水調整，水分調控不當會導致碾壓后出現彈簧現象，影響結構強度。

　　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.

　　設備狀態與參數設置影響施工質量。冷再生機的銑刨深度需與原路面病害匹配，過深會增加混合料用量且影響基層穩定性，過淺則無法徹底處理路面病害，通常根據路面破損程度設定在 5-15 厘米。銑刨鼓轉速與前進速度的匹配至關重要，轉速過低會導致混合料破碎不充分，出現大塊集料；前進速度過快會使銑刨不均勻，需根據集料硬度調整兩者比例。碾壓設備的噸位與碾壓次數也需適配，初壓宜用輕型壓路機穩定混合料，復壓用重型壓路機增強密實度，終壓用輪胎壓路機消除輪跡，碾壓次數不足會導致密實度不夠，過多則易出現推移現象。

　　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.

　　操作人員的技術水平與協調能力同樣關鍵。操作人員需熟悉設備性能，能根據路面變化實時調整參數，若參數調整滯后，會導致局部路段出現起伏。施工團隊的配合效率影響整體進度，冷再生機、灑水車、壓路機的作業銜接需緊湊，間隔時間過長會使混合料溫度或水分流失，增加碾壓難度。此外，操作人員對施工規范的執行程度，直接影響路面的平整度與壓實度，經驗不足的操作人員易出現漏壓、過壓等問題，導致局部路段后期出現沉降。

　　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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