Slope failures risk acceptance in the construction of roads on the clayey mine spoil dump, Czech Republic
Slope failures risk acceptance in the construction of roads on the clayey mine spoil dump, Czech Republic
In this paper, we present a study of a large slope failure, which endangered the construction of a bridge, occurred in 24 m deep cutting with a main scarp upper edge extending over 70 m in length. The stability analysis is discussed, with a critical analysis of safety factors, according to the Eurocode. The important place takes the analysis of slope stability during construction, but also the analysis of long-term conditions, back-analysis, in anthropogenic site, conditions that are not completely covered by geotechnical codes. Lessons learned showed, that a design basis in such an anthropogenic environment should ensure an advanced geotechnical characterizations and parametric engineering assessments. Even in such a case, it will be necessary to acknowledge the risk of slope instability by all stakeholders, mainly due to uncertainties associated with a construction of clayey mine spoil heaps and a subsequent mechanical properties heterogeneity of stockpiled soils. The role of geotechnics is inevitable in such " NATURAL " conditions of mine spoil dumps to provide necessary support throughout entire project life cycle.
J. Jurko; Niculai Droniuc
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
B - Geohazards
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