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Updated: Oct 10, 2025

A Bending Test for Determining the Atterberg Plastic Limit in Soils
Published on: June 28, 2016
Description of Limit States in the Subsurface Layer of Loosened Subsoil in View of Critical State Soil Mechanics
Jan Fedorowicz1, Lidia Fedorowicz1, Marta Kadela2
1Faculty of Architecture, Civil Engineering and Applied Arts, University of Technology, ul. Rolna 43, 40-555 Katowice, Poland.
Abstract:
The article aims to present an effective numerical method for the behaviour analysis and safety assessment of a subsurface layer of subsoil in the existing or predicted states of mining and post-mining deformations. Based on our own analytical record, using the equations of the Modified Cam-Clay model, the description of limit states in the subsurface layer of subsoil was validated, making it consistent with in situ observations. The said effect was demonstrated by comparing numerical analyses of the subsoil layer subjected to the limit state, using the Modified Cam-Clay (MCC) model and the Coulomb-Mohr model (C-M). The article also presents the applicability potential of the numerical analysis of the loosened subsoil layer for the assessment of protection elements (e.g., geo-matresses) used under linear structures in the areas subjected to mining and post-mining impacts.
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