Uncertainty analysis of the stability parameters of rock walls

• Autorzy: Mokhtar S. , Yousefirad M.

Identyfikatory

DOI

10.24425/ace.2020.135246

• Języki publikacji: EN

Abstrakty

EN

The purpose of this paper is to investigate the effects of natural uncertainties and effective parameters on the stability of plate-type rock walls. For this, the effective factors and geo-mechanical properties in the study area were obtained using field experiments. Stability analysis of rock walls was investigated for 40 scenarios in dry and saturated states. These parameters were then evaluated using Easyfit software and Markov chain analysis and Monte Carlo simulation by Rock Plane software. Comparison of the results of numerical and uncertainty methods shows that the rock walls with 60-80 degree slope are stable; and In saturated state they require stability due to the reduction of shear strength. Fixation of the rock walls was also investigated, indicating an optimum angle of 30° for the installation of the rock screw. The results show that the Monte Carlo simulation provides a simpler interpretation and the uncertainty methods are more accurate and reliable than the numerical methods.

Słowa kluczowe

EN

rock wall; Monte Carlo simulation; Markov chain model; Rock Plane; software; uncertainty; stability

PL

ściana skalna; symulacja Monte Carlo; model łańcucha Markowa; oprogramowanie; Rock Plane; niepewność; stabilność

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2020
• Tom: Vol. 66, nr 4
• Strony: 703--721
• Opis fizyczny: Bibliogr. 27 poz., il., tab.

Twórcy

autor

Mokhtar S.

• Department of Civil Engineering, Arak Branch, Islamic Azad University, Arak, Iran

autor

Yousefirad M.

• Department of Geology, Faculty of Earth Sciences, Arak University, of Technology, Iran

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