冷再生機(jī)銑刨技術(shù)是道路養(yǎng)護(hù)領(lǐng)域的一項(xiàng)革新工藝，其核心在于通過(guò)專(zhuān)用機(jī)械在常溫環(huán)境下對(duì)舊瀝青路面進(jìn)行出色處理。該技術(shù)集銑刨、破碎、再生料拌和及攤鋪功能于一體，能夠針對(duì)路面面層及部分基層實(shí)施合理作業(yè)。其工作原理依托于高速旋轉(zhuǎn)的銑刨轉(zhuǎn)子，該轉(zhuǎn)子搭載合金刀具，以垂直或水平進(jìn)給方式切入舊路面，將老化瀝青層與基層材料剝離成細(xì)小顆粒。與此同時(shí)，再生機(jī)通過(guò)智能?chē)姙⑾到y(tǒng)按比例注入乳化瀝青、泡沫瀝青或水泥等穩(wěn)定劑，配合準(zhǔn)確計(jì)量的水，在攪拌倉(cāng)內(nèi)與銑刨料充分混合。這一過(guò)程不僅實(shí)現(xiàn)了舊料的100%循環(huán)利用，更通過(guò)級(jí)配優(yōu)化技術(shù)，補(bǔ)充了原路面缺失的骨料成分，使再生混合料性能達(dá)到或超過(guò)新建路面標(biāo)準(zhǔn)。

　　Cold recycling machine milling technology is an innovative process in the field of road maintenance, whose core is to efficiently treat old asphalt pavement at room temperature through specialized machinery. This technology integrates milling, crushing, mixing of recycled materials, and paving functions, and can implement precise operations for road surface layers and some base layers. Its working principle relies on a high-speed rotating milling rotor, which is equipped with alloy cutting tools and cuts into the old road surface in a vertical or horizontal feed manner, peeling the aged asphalt layer and base material into small particles. At the same time, the regenerator will inject stabilizing agents such as emulsified asphalt, foam asphalt or cement in proportion through the intelligent spraying system, and mix with milled materials in the mixing bin with accurately measured water. This process not only achieves 100% recycling of old materials, but also supplements the missing aggregate components of the original road surface through gradation optimization technology, making the performance of recycled mixtures meet or exceed the standards of new road surfaces.

　　該技術(shù)的作業(yè)優(yōu)勢(shì)體現(xiàn)在多個(gè)維度。相較于傳統(tǒng)熱再生工藝，冷再生機(jī)銑刨無(wú)需加熱環(huán)節(jié)，能耗降低60%以上，且施工過(guò)程中無(wú)有害氣體排放，符合綠色施工理念。從效率層面分析，單機(jī)日處理面積可達(dá)8000平方米，是人工破碎方式的20倍。更重要的是，經(jīng)冷再生處理的路面結(jié)構(gòu)層，其抗車(chē)轍能力提升40%，水穩(wěn)性指標(biāo)優(yōu)于普通水穩(wěn)基層，使用壽命延長(zhǎng)3-5年。

　　The homework advantages of this technology are reflected in multiple dimensions. Compared to traditional hot recycling processes, cold recycling machines for milling and planing do not require heating, reducing energy consumption by more than 60%, and there are no harmful gas emissions during the construction process, which is in line with the concept of green construction. From an efficiency perspective, the daily processing area of a single machine can reach 8000 square meters, which is 20 times that of manual crushing methods. More importantly, the road structure layer treated with cold recycling has a 40% increase in anti rutting ability, better water stability indicators than ordinary water stable base layers, and an extended service life of 3-5 years.

　　實(shí)際操作中，技術(shù)人員需嚴(yán)格把控三項(xiàng)關(guān)鍵參數(shù)。首先是銑刨深度控制，通過(guò)激光測(cè)距系統(tǒng)實(shí)時(shí)監(jiān)測(cè)，確保誤差控制在±5毫米以?xún)?nèi)，避免破壞完好基層。其次是行走速度調(diào)節(jié)，根據(jù)舊料老化程度，在2-6米/分鐘范圍內(nèi)動(dòng)態(tài)調(diào)整，保證銑刨料級(jí)配連續(xù)性。非常后是穩(wěn)定劑摻量控制，采用雙計(jì)量泵系統(tǒng)，乳化瀝青誤差≤2%，水泥撒布量誤差≤1.5%。

　　In practical operation, technicians need to strictly control three key parameters. Firstly, the milling depth control is achieved through real-time monitoring using a laser ranging system, ensuring that the error is controlled within ± 5 millimeters and avoiding damage to the intact base layer. Secondly, the walking speed is adjusted dynamically within the range of 2-6 meters per minute according to the aging degree of the old material, ensuring the continuity of the milling material grading. Finally, the stabilizer dosage control adopts a dual metering pump system, with emulsified asphalt error ≤ 2% and cement spreading error ≤ 1.5%.

　　在特殊路況處理方面，該技術(shù)展現(xiàn)出出色的適應(yīng)性。針對(duì)車(chē)轍病害路段，可通過(guò)加密銑刨刀具排列，形成波浪形切割面，增強(qiáng)新舊料咬合度；對(duì)于裂縫密集區(qū)域，則采用分層銑刨工藝，先剝離表層再處理基層裂縫，配合纖維增強(qiáng)型乳化瀝青，使抗裂性能提升70%。

　　In terms of handling special road conditions, this technology demonstrates excellent adaptability. For road sections with rutting diseases, the arrangement of milling and planing tools can be increased to form a wavy cutting surface, enhancing the bite between new and old materials; For areas with dense cracks, a layered milling process is used to first peel off the surface layer and then treat the cracks in the base layer. Combined with fiber-reinforced emulsified asphalt, the crack resistance performance is improved by 70%.

　　質(zhì)量控制環(huán)節(jié)，需遵循“三檢制度”：銑刨后立即進(jìn)行含水量快速檢測(cè)，確保在5%-7%非常佳區(qū)間；攤鋪時(shí)采用核子密度儀跟蹤檢測(cè)，壓實(shí)度達(dá)標(biāo)率需達(dá)98%以上；養(yǎng)生期結(jié)束后，運(yùn)用落錘式彎沉儀評(píng)估結(jié)構(gòu)層強(qiáng)度，承載能力應(yīng)滿(mǎn)足設(shè)計(jì)要求。

　　In the quality control process, it is necessary to follow the "three inspection system": immediately conduct a rapid moisture content test after milling to ensure that it is within the optimal range of 5% -7%; During paving, a nuclear density meter is used for tracking and detection, and the compaction compliance rate must reach 98% or above; After the health preservation period, the structural layer strength should be evaluated using a drop hammer deflectometer, and the bearing capacity should meet the design requirements.

　　隨著材料科學(xué)的進(jìn)步，新型冷再生技術(shù)已實(shí)現(xiàn)功能拓展。例如，添加橡膠粉改性劑的再生料，可將行車(chē)噪音降低5分貝；摻入相變材料的智能型再生層，可自動(dòng)調(diào)節(jié)路面溫度，延緩反射裂縫產(chǎn)生。這些創(chuàng)新應(yīng)用，正推動(dòng)冷再生機(jī)銑刨技術(shù)向多功能、智能化方向演進(jìn)，為道路可持續(xù)發(fā)展提供有力支撐。

　　With the advancement of materials science, new cold recycling technologies have achieved functional expansion. For example, adding rubber powder modifier to recycled materials can reduce driving noise by 5 decibels; The intelligent regeneration layer mixed with phase change materials can automatically adjust the road surface temperature and delay the occurrence of reflective cracks. These innovative applications are driving the evolution of cold recycling machine milling technology towards multifunctionality and intelligence, providing strong support for sustainable road development.

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