What are the techniques and methods for excavating trenches with excavators?

[McEmiliano]

Generally, the trench route is marked with lime on the construction site. The centerline of the excavator's chassis should align with the lime line, and the middle tooth of the bucket should correspond to the lime line. When officially starting the excavation, first remove the surface layer, then the lower layer. Never excavate to the bottom at once. Many beginners fail to dig trenches well, mainly because they do not adhere to the principle of neatness, and their detailed operations need further improvement. The control of the trench bottom is crucial. At this time, the techniques of throwing and leveling need to be applied.