The formula to calculate the Excavation Slope is:
\[ \text{Slope} = \tan(\theta) \]
Where:
An excavation slope refers to the inclined boundary surface created during excavation work, such as digging a trench, pit, or other depression in the earth’s surface. The angle of the slope is determined by the stability of the soil or rock being excavated and is designed to prevent the sides of the excavation from collapsing. The slope’s angle can vary from vertical to horizontal, depending on the soil type, moisture content, and other factors. The Occupational Safety and Health Administration (OSHA) provides guidelines for the maximum allowable slopes to ensure worker safety during excavation work. These guidelines take into account the type of soil (such as solid rock, Type A, B, or C soil) and the depth of the excavation.
Let's assume the following values:
Using the formula to calculate the Excavation Slope:
\[ \text{Slope} = \tan(30^\circ) \approx 0.5774 \]
The Slope is approximately 0.5774.