DIN 4095-1:2026-06

This document defines the interface between the geotechnical report with presentation of the hydrogeological subsoil conditions and the planning, dimensioning and execution of structures in contact with the ground with the applicable regulations. This document provides guidance for determining the water effects on the contact surfaces between the subsoil or the working space backfill, including any drainage, and the surfaces of a structure in contact with the ground. This results in the water effects on components in contact with the ground and the basis for the design of drainage systems. Determining the water impact also creates the basis for the design and verification of the safety of structures or structural components against uplift. This document has been prepared by the Working Committee NA 005-05-10 AA "Baugrund; Gebäudedränung" ("Ground; drainage of buildings") at DIN Standards Committee Building and Civil Engineering (NABau).