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    Wyświetlanie 1-2 z 2
    Tytuł:
    Seismic bearing capacity of shallow strip footing embedded in slope resting on two-layered soil
    Autorzy:
    Debnath, Litan
    Powiązania:
    https://bibliotekanauki.pl/articles/1845145.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    pseudo-static
    particle swarm optimisation
    bearing capacity coefficient
    slope inclination
    limit equilibrium
    Opis:
    In this paper, the limit equilibrium method with the pseudo-static approach is developed in the evaluation of the influence of slope on the bearing capacity of a shallow foundation. Particle swarm optimisation (PSO) technique is applied to optimise the solution. Minimum bearing capacity coefficients of shallow foundation near slopes are presented in the form of a design table for practical use in geotechnical engineering. It has been shown that the seismic bearing capacity coefficients reduce considerably with an increase in seismic coefficient. Besides, the magnitude of bearing capacity coefficients decreases further with an increase in slope inclination.
    Źródło:
    Studia Geotechnica et Mechanica; 2021, 43, 3; 285-306
    0137-6365
    2083-831X
    Pojawia się w:
    Studia Geotechnica et Mechanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    What were the reasons for the rapid landslide occurrence in “Piaseczno” open pit? – analysis of the landslide process
    Autorzy:
    Jakóbczyk, J.
    Cała, M.
    Stopkowicz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/178828.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    landslide
    open pit mine
    slope stability analysis
    numerical modelling
    Limit Equilibrium Method
    LEM
    Shear Strength
    Reduction Method
    SSRM
    Opis:
    Landslides are major natural hazards occurring in opencast mining. The problem of slope stability failure in the existing open pit mines as well as in those which are at a stage of technical closure is current issue in Poland and all over the world. This problem requires conducting in-depth and meaningful analysis which will identify the causes of processes characterized by a very rapid course and large extent. The paper presents the analysis of the landslide causes, which took place on May 11, 2011 on the western slope of the internal dump in “Piaseczno” sulphur mine (at a stage of technical closure). It was the first native sulphur open pit mine in Poland in which the exploitation was carried out from 1958 untill 1971. Reclamation works have been ongoing since 2005. The aim of these works is to create water body which will be used for recreational purposes. During the reclamation works on the western slope of “Piaseczno” reservoir the landslide processes were activated. A detailed description of geology and preliminary analyses of landslide processes are given in [1]. The development of landslide took place in a very violent manner. Moreover, the occurrence of the landslide caused the movement of the reservoir shoreline by about 350 meters and created a bay with the area of approximately 6 hectares. Displacement of 600 000 m3 of soil masses under the water resulted in its level rising by 56 cm. The total volume of ground masses was over 1 million m3. The analysis of the landslide process activation was carried out for two representative cross-sections of the internal dump. Numerical calculations were performed using the Limit Equilibrium Method (SLOPE/W GeoStudio) and the Finite Difference Method using the Shear Strength Reduction Method (FLAC Slope). They were aimed at determining the shape and extent of potential slip surface, which would correspond to the observed landslide. The purpose of the analysis, the results of which are presented in the article, was to define how the process proceeded and what factors contributed to its activation.
    Źródło:
    Studia Geotechnica et Mechanica; 2015, 37, 1; 25-35
    0137-6365
    2083-831X
    Pojawia się w:
    Studia Geotechnica et Mechanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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