In soil stabilization, what is the term for pressure from water moving soil upward during excavation?

The term for the pressure from water moving soil upward during excavation is "piping." This phenomenon occurs when water flows through the soil, often creating channels or pathways in the soil structure, which can lead to the upward movement of soil particles. Piping is particularly significant because it can undermine the integrity of a construction site, leading to potential collapse or erosion.

The other terms refer to different processes: consolidation involves the gradual settlement of soil under load as water is expelled from the voids, liquefaction describes a condition where saturated soil loses strength due to shaking or stress, and cracking typically refers to the formation of fissures in the soil or materials rather than the upward movement caused by water pressure. Understanding piping is crucial in soil stabilization efforts as it helps mitigate risks associated with excavation and ensure the stability of the surrounding structures.