Final answer:
Foundation dewatering removes "free water" from the foundation's perimeter, reducing lateral load on the walls. It involves the use of specialized techniques and equipment to lower the groundwater level around the foundation.
Step-by-step explanation:
Foundation dewatering removes "free water" from the foundation's perimeter, reducing the lateral load on the foundation walls. It involves the use of specialized techniques and equipment to lower the groundwater level around the foundation.
The student is asking about drainage systems used in building construction, specifically a system that removes "free water" from the foundation's perimeter. This system, often referred to as foundation drainage, involves the installation of drainage pipes, gravel, and sometimes a sump pump to collect water from the soil surrounding the foundation and redirect it away from the building. By doing so, it reduces the hydrostatic pressure (lateral load) exerted on foundation walls, which can prevent structural damage caused by water pressure and moisture infiltration.