Stability conditions of the Vistula Valley attained by a multivariate approach – a case study from the Warsaw Southern Ring Road

Abstract

Localised landslide activity has been observed in the area of the plateau slope analysed, in the vicinity of the planned Warsaw Southern Ring Road. Using calculation models quantitative and qualitative evaluations of the impact of natural and anthropogenic load factors on slope stability (and hence, safety) are made. The present paper defines six stages of slope stability analysis, leading to an indication of optimum slope design in relation to the development planned. The proposed procedure produces a ranking of factors that affect slope stability. In the engineering geological conditions under consideration, the greatest factors impacting degradation and failure of slope stability are changes in soil strength due to local, periodic yielding and the presence of dynamic loads generated by intensification of road traffic. Calculation models were used to assess the impact of destabilisation factors and to obtain mutual equivalence with 3D-visualisation relations. Based on this methodology, various scenarios dedicated to specific engineering geological conditions can be developed and rapid stability evaluations of changing slope loads can be performed.

The Influences of Local Glacitectonic Disturbance on Overconsolidated Clays for Upland Slope Stability Conditions: A Case Study

“…Warsaw Slope is located on Warsaw Upland, which is built by glacitectonically deformed clays of the Poznań clay formation (Figure 1), covered by layers of glacial till and fluvioglacial sediments. The spatially and genetically complex structural setting of Warsaw Slope has been carefully documented by many studies (e.g., [32,33]). Successive development of processes leading to the displacement of soils can be observed, among others, by comparison of historical iconography illustrating the panoramas of the Old Town, Krakowskie Przedmieście, and Żoliborz, seen from the side of Vistula River.…”

Complex Analysis of the Impact of Construction of an Underground Metro Line on the Urban Environment – a Case Study from the Vistula Valley in Warsaw

“…Figure 1 shows scheme of performed tests in order to analyse the tunnel construction's influence on the urban envirment in Vistula Valley in WarsawResults In the first stage, landslide activity in the area of metro tunnel construction in the past was established. On the basis of the author's own research and a number of publications (Wysokiński 2013;Kaczmarek, Dobak 2015), the most important factor influencing the slope stability (which is high slope angle of approximately 36°) was identified. This kind of morphology of the research area causes increased threat of landslide's reactivation in the case of interactions with metro tunnel construction, resulting in horizontal and vertical displacements of the researched area.…”

Hazard Classification and Stability Analysis of High and Steep Slopes from Underground to Open-Pit Mining

“…However, this method does not take into account the stress–strain relationship and the actual working conditions of the soil itself, but only uses artificial virtual states to find the safety factor. The advantage of the finite element method is that it partially takes into account the inhomogeneity and discontinuity of the rock mass of the slope and avoids the disadvantages of the limit equilibrium method, which is too simplified, but it is not ideal for solving problems such as large deformation, discontinuities in the rock mass, infinite domain, and stress concentration [ 13 , 14 , 15 , 16 ].…”