冷再生機(jī)租賃施工的效率與質(zhì)量，受環(huán)境條件、材料特性、設(shè)備狀態(tài)及操作水平等多方面因素影響，這些因素相互作用，直接關(guān)系到施工進(jìn)度與再生路面的后期性能，需在施工前充分評(píng)估并制定應(yīng)對(duì)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(huán)境條件是影響施工的關(guān)鍵因素。氣溫對(duì)冷再生機(jī)施工影響顯著，適宜溫度通常在 10-30℃，低于 5℃時(shí)，再生混合料的黏結(jié)性會(huì)下降，易出現(xiàn)松散現(xiàn)象，需采取覆蓋保溫措施；高于 35℃時(shí)，混合料水分蒸發(fā)過快，會(huì)導(dǎo)致碾壓時(shí)難以成型，需增加灑水頻次以保持適宜濕度。降水天氣會(huì)直接中斷施工，雨水會(huì)降低混合料的穩(wěn)定性，使路面出現(xiàn)翻漿，因此施工前需關(guān)注天氣預(yù)報(bào)，避開雨天，若施工中遇短時(shí)陣雨，需立即停止作業(yè)并覆蓋未碾壓路段，待路面干燥后重新處理。風(fēng)力過大（超過 5 級(jí)）會(huì)加速混合料表面水分流失，導(dǎo)致局部干硬，影響整體平整度，此時(shí)需調(diào)整施工速度，并在再生路段兩側(cè)設(shè)置擋風(fēng)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(duì)施工效果影響較大。原路面的瀝青含量、集料級(jí)配及含水量，直接決定再生混合料的配合比設(shè)計(jì)。若原路面瀝青老化嚴(yán)重，需增加再生劑用量以恢復(fù)其黏結(jié)性；集料粒徑不均勻，會(huì)導(dǎo)致再生混合料攤鋪時(shí)出現(xiàn)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(guān)鍵指標(biāo)，過高會(huì)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(diào)整，水分調(diào)控不當(dāng)會(huì)導(dǎo)致碾壓后出現(xiàn)彈簧現(xiàn)象，影響結(jié)構(gòu)強(qiáng)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(shè)備狀態(tài)與參數(shù)設(shè)置影響施工質(zhì)量。冷再生機(jī)的銑刨深度需與原路面病害匹配，過深會(huì)增加混合料用量且影響基層穩(wěn)定性，過淺則無法徹底處理路面病害，通常根據(jù)路面破損程度設(shè)定在 5-15 厘米。銑刨鼓轉(zhuǎn)速與前進(jìn)速度的匹配至關(guān)重要，轉(zhuǎn)速過低會(huì)導(dǎo)致混合料破碎不充分，出現(xiàn)大塊集料；前進(jìn)速度過快會(huì)使銑刨不均勻，需根據(jù)集料硬度調(diào)整兩者比例。碾壓設(shè)備的噸位與碾壓次數(shù)也需適配，初壓宜用輕型壓路機(jī)穩(wěn)定混合料，復(fù)壓用重型壓路機(jī)增強(qiáng)密實(shí)度，終壓用輪胎壓路機(jī)消除輪跡，碾壓次數(shù)不足會(huì)導(dǎo)致密實(shí)度不夠，過多則易出現(xiàn)推移現(xiàn)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(shù)水平與協(xié)調(diào)能力同樣關(guān)鍵。操作人員需熟悉設(shè)備性能，能根據(jù)路面變化實(shí)時(shí)調(diào)整參數(shù)，若參數(shù)調(diào)整滯后，會(huì)導(dǎo)致局部路段出現(xiàn)起伏。施工團(tuán)隊(duì)的配合效率影響整體進(jìn)度，冷再生機(jī)、灑水車、壓路機(jī)的作業(yè)銜接需緊湊，間隔時(shí)間過長(zhǎng)會(huì)使混合料溫度或水分流失，增加碾壓難度。此外，操作人員對(duì)施工規(guī)范的執(zhí)行程度，直接影響路面的平整度與壓實(shí)度，經(jīng)驗(yàn)不足的操作人員易出現(xiàn)漏壓、過壓等問題，導(dǎo)致局部路段后期出現(xiàn)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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