Baugrundentwässerung

Baugrundentwässerung refers to the management and removal of groundwater and surface water from a construction site and the surrounding building foundations. This process is crucial to prevent structural damage, ensure site stability, and protect buildings from water-related issues such as hydrostatic pressure, frost heave, and mold growth.

The primary goal of Baugrundentwässerung is to lower the groundwater table to a level that is safe for construction activities and to ensure the long-term dryness of the building's basement and foundation. This can involve several methods depending on the specific site conditions, soil type, and the depth of the groundwater. Common techniques include dewatering, which involves pumping out groundwater, and the installation of drainage systems.

Drainage systems for Baugrundentwässerung typically consist of perforated pipes laid in gravel beds around the foundation perimeter, known as foundation drainage (Fundamententwässerung). These pipes collect water and channel it away from the building, often to a sump pit where it is then pumped out or discharged to a suitable drainage system. Surface water management also plays a role, preventing rainwater from accumulating and infiltrating the ground near the structure. This can involve grading the site to direct water away from the building and the use of surface drains.

Proper Baugrundentwässerung is a critical aspect of civil engineering and construction, requiring careful planning and execution to safeguard the integrity and longevity of any building project. It is often a requirement outlined in building codes and regulations.