A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Analysis of Over-Consolidation in Subsoil in Bratislava, Slovakia
Abstract It is difficult to determine the over-consolidation ratio when conducting practical tasks in the field of geotechnics. Geological layers undergo erosion processes that influence the stresses that exist in subsoil. The paper presents an analysis of erosion thickness via two methods. The first is Baldwin-Butler’s method, which is based on compaction curve of many dates. The second is Casagrande’s method, which is based on concept of preconsolidation stress. An analysis has been conducted for the central part of Bratislava (Slovakia, Central Europe). The subsoils at this location consist of fine-grained sediments from the Miocene and Pliocene periods. Silt and clay dominate in these Neogene deposits with a minority of fine and clayey sands. The over-consolidation ratio OCR was evaluated based on the results of oedometer tests of undisturbed soil samples. The measured normal stresses reached 7.0 MPa. The resulting thickness of the erosion determined according to Baldwin-Butler’s method ranged between 194–272 m, while Casagrande’s method produced a range between 81–187 m.
Experimental Analysis of Over-Consolidation in Subsoil in Bratislava, Slovakia
Abstract It is difficult to determine the over-consolidation ratio when conducting practical tasks in the field of geotechnics. Geological layers undergo erosion processes that influence the stresses that exist in subsoil. The paper presents an analysis of erosion thickness via two methods. The first is Baldwin-Butler’s method, which is based on compaction curve of many dates. The second is Casagrande’s method, which is based on concept of preconsolidation stress. An analysis has been conducted for the central part of Bratislava (Slovakia, Central Europe). The subsoils at this location consist of fine-grained sediments from the Miocene and Pliocene periods. Silt and clay dominate in these Neogene deposits with a minority of fine and clayey sands. The over-consolidation ratio OCR was evaluated based on the results of oedometer tests of undisturbed soil samples. The measured normal stresses reached 7.0 MPa. The resulting thickness of the erosion determined according to Baldwin-Butler’s method ranged between 194–272 m, while Casagrande’s method produced a range between 81–187 m.
Experimental Analysis of Over-Consolidation in Subsoil in Bratislava, Slovakia
Galliková, Zuzana (author)
2018-01-01
5 pages
Article/Chapter (Book)
Electronic Resource
English
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