Analysis of Slope Stability

Bašková, Renáta; Kotrasová, Kamila; Kormaníková, Eva; Hegedüsová, Iveta

doi:10.2478/cee-2021-0020

Cited by 16 publications

(9 citation statements)

References 9 publications

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“…Analyzes of this type are of great importance for the broadly understood construction industry, e.g. modeling of erosion processes [44,45], transport [46], landslide processes [47][48][49][50][51][52][53][54][55], as well as assessment of the impact of the construction industry and the building materials industry on the natural environment in terms of sustainable development [56,57].…”

Section: Resultsmentioning

confidence: 99%

Identification of land system transformations in the Rzeszów city square

2023

Archives of Civil Engineering

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The paper presents the results of a comparative study of the land system of the city square and adjacent buildings for Rzeszów in Poland. The study made use of a cadastral map at a scale of 1:2880 and a modern land and building record map. For the purpose of adjusting reference systems, the cadastral map recorded in the form of a digital raster image, in accordance with applicable provisions of polish law (Journal of Laws No. 263 §49), was subjected to a two-stage calibration. The first stage consisted in carrying out initial calibration with the employment of first-degree affine transformation. In the second stage, final calibration was performed using mathematical transformation that considered the distortions detected in the previous stage. The results showed shifts, consolidations, and divisions of land parcels with regard to the present state, and changes to property structure. The proposed method may prove useful for further research on historical urban system morphology, and on restoration and renewal of the urban tissue.

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Section: Resultsmentioning

confidence: 99%

Identification of land system transformations in the Rzeszów city square

2023

Archives of Civil Engineering

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“…For simplicity, two illustrative cases are analysed by the common methods, namely Ordinary and Bishop's method. However, more advanced methods such as Sarma Method [21] with polygonal slip surfaces, which shows its appropriateness in some geological conditions [22], are also applied similarly.…”

Section: Discussionmentioning

confidence: 99%

Assessment of Slope Stability under Bounded Uncertainties Using Differential Evolution and Particle Swarm Optimization

2022

Civil and Environmental Engineering

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In the assessment of slope stability, the uncertainty of soil properties affects directly the factor of safety, which is the objective function to be minimized. Therefore, we propose an approach that treats the uncertainties as additional variables besides three common variables, i.e. the radius of the critical slip surface R and its centre coordinates X, Y. This approach is also compared with two other approaches: i) minimizing the objective function (with variables R, X and Y) at all vertices of the feasible region defined by lower and upper bounds of uncertainties, and then choosing the best solution from them; ii) using the two-level optimization in which the optimal solution (R, X and Y) satisfies the least favourable condition of uncertainties at these vertices. The proposed approach with extra variables shows the efficiency in finding good solutions with a significant decrease of computation time. The study also shows that both Differential Evolution and Particle Swarm Optimization can find good solutions, although the former is marginally better.

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“…Indeed, when fv exceeds 35 %, the gravels touch each other and form a "macro granular" structure [13], which will control the overall behavior. Thus, the inclusions are no longer embedded in the matrix, a difference in behavior is observed between f v ≤ 35 % and f v > 35 % [14,15].…”

Section: Civil and Environmental Engineeringmentioning

confidence: 99%

Novel Methodology for Determining the Mechanical Characteristics of Coarse-Grained Soils

Ardouz

Baba

Bouanani

et al. 2022

Civil and Environmental Engineering

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Coarse-grained soils are a type of soil frequently found in civil engineering projects, and their mechanical characterization still presents a real challenge. They are composed by elements of different dimensions (from a few microns to tens of centimeters), and can be of very varied nature (clay, sand, gravel, pebbles, etc.). The mechanical characterization of coarse-grained soils is very difficult because of the presence of large elements. In order to be able to characterize them in the laboratory by means of conventional size devices, it is very important to study the influence of significant parameters on the mechanical behavior of coarse-grained soils (the volume fraction, particle size distribution and spread, consolidation level and initial state of the matrix), using the large-sized triaxial testing device. In this paper, we will propose a methodology for evaluating the mechanical characteristics of coarse-grained soils based on soil granulometric reconstruction procedures. The method we have named GALA is based on the use of polynomial correlations between the strength increase due to inclusions and the volume fraction fv and the particle spread (d min /d max) of inclusions. We were able to apply this new method to a natural soil. The results showed the relevance of our method.

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Analysis of Slope Stability

Cited by 16 publications

References 9 publications

Identification of land system transformations in the Rzeszów city square

Identification of land system transformations in the Rzeszów city square

Assessment of Slope Stability under Bounded Uncertainties Using Differential Evolution and Particle Swarm Optimization

Novel Methodology for Determining the Mechanical Characteristics of Coarse-Grained Soils

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