What process involves injecting a grouting agent into soil or rock?

The process of injecting a grouting agent into soil or rock is known as grouting or pressure grouting. This technique is employed to improve the properties of the ground, such as increasing stability and reducing permeability. Grouting involves the introduction of a liquid material into voids within the soil or rock through pressure, allowing the grouting agent to fill gaps, bind particles together, or provide additional support.

Grouting is essential in various applications, including foundation support, tunnel construction, and the repair of leaking structures. The choice of grouting material and technique depends on the specific engineering challenge being addressed, such as stopping water flow, consolidating loose soil, or enhancing load-bearing capacity.

The other processes mentioned do not specifically involve injecting a grouting agent. Stabilization might refer to methods that improve the physical properties of soil, but it does not necessarily involve injection. Injection molding is a manufacturing process for creating parts by injecting material into a mold, and soil reinforcement pertains to techniques used to increase the strength and stability of soil without necessarily involving injection of a grouting agent.