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Geotechnical risks of foundation of warehouses built on brownfields
Author(s) -
ČERNOCH Petr,
KOŠŤÁL Jiří
Publication year - 2018
Publication title -
ce/papers
Language(s) - English
Resource type - Journals
ISSN - 2509-7075
DOI - 10.1002/cepa.799
Subject(s) - subsoil , geotechnical engineering , landslide , geology , loess , drainage , rainwater harvesting , soil water , soil science , geomorphology , ecology , biology
The warehouse halls were founded on backfill sediment, which were 4 to 6 meters thick. Beneath them were the loess and saturated Cretaceous sands. During heavy rains, there were two large landslides that hit the local road. It was therefore necessary to carry out a rapid design of remedial steps (stabilization) without the time to carry out drilling exploration survey. During fieldwork (mapping, geodetic measuring of landslides and sampling of soil) it was found that most of the warehouse halls did not have solved the drainage of rainwater from roofs and roads and there occurred long cracks in the floors of the halls. Laboratory soil tests served as inputs for stability calculations. Reverse analysis (landslide condition) derived residual geotechnical parameters of the soil. The proposal for redevelopment consisted of changing the slope geometry, building a loading bench and brand new drainage of surface water along the slope (it was missing on the top). It was also recommended to replace the subsoil – saturated loess – under the floors of the warehouse halls.