What happens to soil when it is disturbed?

When soil is disturbed, it often compacts rather than swells. Disturbance can include activities such as excavation, grading, or any mechanical manipulation of the soil. When soil is compacted, the particles are forced closer together, resulting in increased density and reduced air spaces. This compaction can lead to various issues, such as reduced water infiltration, limited root growth for plants, and challenges in the stability of structures built upon it.

In addition to compaction, disturbed soil may also become loosened temporarily during disturbance due to the movement of particles. However, the overall effect on soil during and after disturbance is primarily a tendency toward compaction, especially if heavy equipment is used.

Understanding soil behavior when disturbed is crucial for general contractors as it impacts building foundations, landscaping, and drainage systems. Proper management of soil during construction can help mitigate negative effects associated with compaction and ensure a stable and suitable environment for construction and planting.