铺筑水泥混凝土路面时，为防止路面产生不规贝撕裂，必须实施引导缝切割作业，以保证混凝土路面的修筑质量。 传统的作业方法是：混凝土铺筑后，经过养护，待形成一定强度后，用切缝机进行硬式切缝，切深一般为５０～８０ｍｍ。此时水泥混凝土已有相当的强度，由于内应力等因素 Paving the cement concrete pavement, in order to prevent irregular pavement tear generated, must guide the implementation of cutting operations to ensure the quality of concrete pavement construction. The traditional method of operation is: concrete paving, after curing, to be formed after a certain intensity, with a slitter for hard lancing, cutting depth is generally 50 ~ 80mm. At this point cement concrete has a considerable strength, due to internal stress and other factors