What adjustments should be made when digging in rocky soil?

When digging in rocky soil, adjusting the depth according to the type of rock is essential for several reasons. Different types of rock present varying levels of hardness and resistance, which can influence how easily or deeply one can dig. For instance, softer sedimentary rock may require less effort to penetrate compared to harder igneous or metamorphic rocks.

By understanding the type of rock present, the excavator can better plan the way to approach the digging process, potentially avoiding unnecessary effort or damage to equipment. Additionally, this approach helps in complying with safety regulations and ensuring that the digging does not impede structural integrity or lead to unforeseen complications.

In contrast, the other options are not practical. Digging deeper than normal without assessing the rock type can lead to inefficient use of time and resources. Using lighter tools may not provide the necessary leverage or durability for the task at hand. Finally, skipping depth calculations entirely could result in significant issues related to utility lines, stability, and safety. Thus, the most effective practice is to adjust the depth based on the specific characteristics of the rock being encountered.