畫(huà)線切割：根據(jù)坑槽實(shí)際范圍，用粉筆或噴漆標(biāo)出修補(bǔ)輪廓（每邊外擴(kuò)10-20cm）。使用切割機(jī)沿畫(huà)線進(jìn)行干切，確保坑槽邊緣垂直、輪廓規(guī)整。

Line cutting: Mark the repair contour with chalk or spray paint according to the actual range of the groove (expand 10-20cm on each side). Use a cutting machine to perform dry cutting along the drawn line, ensuring that the edges of the groove are vertical and the contour is neat.

破碎清槽：使用風(fēng)鎬或電錘清除槽內(nèi)松散混合料，直至露出堅(jiān)實(shí)基層。若基層松軟，需繼續(xù)向下挖除。隨后用鋼絲刷、空壓機(jī)或高壓水槍有效清除坑底及四壁的浮塵、碎石，并保持坑槽絕對(duì)干燥。

Crushing and cleaning the groove: Use a pneumatic pick or electric hammer to remove loose mixture from the groove until a solid base layer is exposed. If the base layer is soft, it needs to be further excavated downwards. Subsequently, use a wire brush, air compressor, or high-pressure water gun to thoroughly remove floating dust and debris from the bottom and walls of the pit, and keep the pit absolutely dry.

涂刷粘層：在坑底和四壁均勻涂刷粘層油（如乳化瀝青），以增強(qiáng)新舊材料的粘結(jié)力，防止水分從接縫滲入。

Brushing adhesive layer: Apply adhesive layer oil (such as emulsified asphalt) evenly on the bottom and walls of the pit to enhance the bonding strength between new and old materials and prevent moisture from seeping into the joints.

分層填筑：

Layered filling:

深度＜5cm：直接填筑瀝青混合料。

Depth<5cm: Directly fill with asphalt mixture.

深度5-10cm：建議分層填筑，每層厚度控制在3-5cm。

Depth 5-10cm: It must be filled in layers, with each layer thickness controlled between 3-5cm.

深度＞10cm：需先用水泥穩(wěn)定碎石等材料補(bǔ)強(qiáng)基層，再分層填筑瀝青面層。

Depth>10cm: The base layer needs to be reinforced with materials such as cement stabilized crushed stone first, and then filled with asphalt surface layer in layers.

填筑時(shí)，新料應(yīng)略高于原路面2-5mm，以預(yù)留壓實(shí)沉降量。

When filling, the new material should be slightly 2-5mm higher than the original road surface to reserve compaction settlement.

壓實(shí)成型：使用振動(dòng)平板夯或小型壓路機(jī)進(jìn)行壓實(shí)。突出應(yīng)遵循“先邊緣、后中間”的原則，確保接縫平順、密實(shí)度達(dá)標(biāo)（普通道路≥93%，高速公路≥95%）。

Compaction molding: Use a vibrating plate compactor or a small roller for compaction. Rolling should follow the principle of "edge first, middle later" to ensure smooth joints and meet the standard of compactness (ordinary roads ≥ 93%, highways ≥ 95%).

封邊處理：壓實(shí)完成后，在修補(bǔ)區(qū)域與原路面的接縫處涂刷熱瀝青或密封膠，進(jìn)行防水封邊，防止雨水二次侵入。

Edge sealing treatment: After compaction, apply hot asphalt or sealant to the joint between the repaired area and the original road surface for waterproof edge sealing to prevent rainwater from entering again.