Abstract: The bearing capacity of building’s foundation in reservoir immersion area is not covered yet in the existing foundation standards. The influence of reservoir immersion on building foundation was analyzed, and the physical and mechanical properties of foundation soil of submerged buildings were studied through tests. On this basis, the calculation model of elastic-plastic body of foundation building in reservoir immersion area was established, and the graphical solutions for the safe depth of building foundation was proposed. This research is a reference for the determination of building treatment scope in reservoir immersion area.

Key words: reservoir immersion, shallow foundation, safe depth, critical embedding depth