Interaction Evaluation with Subsoil and Global Stability Evaluation of High MSW Structure

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Abstract

Today's situation at designing of complicated reinforced soil structures requires creating of detailed numerical model of structure to analyse limit states. Especially second limit states procedure is demanded due to classics theory limitations. Calculated limit states by FEM software Plaxis on two examples of designed structures composed from micropiles, and reinforced soil structures by geogrids will be presented in this article. High reinforced walls known as MSE type of structure (mechanically stabilized earth) requires detailed evaluation of interaction with foundation soil. There has been no problem to design reinforced soil structure by geosynthetics, it means body of wall structure can be evaluated according to various standards and design procedures, which is supported by various analytical software offered by GSY (geosynthetics) selling companies. Based on long years' experience, there is the most problematic part of design of complicated and high structures on new parts of motorways and high speed train lines proper evaluation of interaction of new structure with foundation soil and global stability evaluation. These analyses are generally complicated for estimation of parameters in interaction and requires to use more sophisticated numerical modelling.

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Vlcek, J., Gombár, M., Míka, J., & Hrubý, P. (2016). Interaction Evaluation with Subsoil and Global Stability Evaluation of High MSW Structure. In Procedia Engineering (Vol. 161, pp. 185–189). Elsevier Ltd. https://doi.org/10.1016/j.proeng.2016.08.523

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