What is the coefficient of permeability?

The coefficient of permeability is fundamentally a measure of how easily water can flow through soil. This property is crucial in geotechnical engineering and environmental assessments because it influences water movement within the soil, affecting drainage, groundwater recharge, and the stability of structures built on or in the soil.

When considering factors such as soil texture, structure, and porosity, the coefficient of permeability quantifies the ease with which water moves through the soil matrix. This measure can be affected by the size and distribution of soil particles, as well as the degree of saturation and the fluid characteristics. A higher coefficient indicates that water can flow readily through the soil, while a lower one suggests restricted flow.

Therefore, understanding the coefficient of permeability is essential for managing water infiltration, predicting groundwater levels, and designing effective drainage systems in construction projects.