When excavating trench footings, what is the preferred method for digging sections of the trench?

When excavating trench footings, the preferred method involves digging each section as long as possible. This technique enhances efficiency and stability during the excavation process. By maximizing the length of each trench section, operators can maintain better control over the excavation, reducing the number of transitions between different sections and allowing for smoother and more continuous work.

Long trench sections also minimize the risk of undermining nearby ground or support structures, as shorter sections can create unsupported areas that may be more prone to collapsing. Additionally, a longer trench reduces the amount of time spent repositioning equipment and clearing debris, ultimately contributing to a safer and more effective excavation process.

Shorter or one-at-a-time sectioning can lead to increased operational complexity and the potential for uneven pressures using the excavator, creating a risk of accidents or ground collapse. Zigzag patterns can complicate the process further, making accurate placement of footings and foundations more challenging. Thus, digging each trench section as long as possible is considered best practice in this context.