An extended 3D limit analysis of slope stability considering prestressed anchor cables reinforcement

• Autorzy: Hong Yong , Shao Zhushan , Wu Kui , Shi Guangbin , Wu Saisai , Jiang Song

Identyfikatory

DOI

10.1007/s43452-023-00606-w

• Języki publikacji: EN

Abstrakty

EN

Prestressed anchor cables have been extensively utilized in slope reinforcement engineering. Combining limit analysis with the strength reduction method (SRM), this article presents a new method to assess the three-dimensional (3D) stability of slopes with prestressed anchor cables. Compared with traditional methods, the factor of safety (F_S) calculation method is modified by considering prestressed anchor cable reinforcement by applying a horn-like shape 3D rotational failure mechanism. To validate the proposed method, comparisons between unreinforced slopes and those reinforced with a row of anchor cables are carried out using optimization algorithms and procedures. The minimum width-to-height (B/H) ratio for which the slope can be analyzed using two-dimensional (2D) analysis under different F_S calculation accuracies is obtained. To evaluate the consequences of the model parameters, parametric analysis is performed, assessing the F_S sensitivity, 3D effects, anchor cable axial force, anchor position, anchor orientation, slope angle, internal friction angle, and cohesion on slope stability. Additionally, slope stabilities under the reinforcement of a row and multiple rows of anchor cables are compared and analyzed. The proposed approach can guide the design and evaluation of slope reinforcement with prestressed anchor cables.

Słowa kluczowe

EN

prestressed anchor cable; three dimension; slope stability; factor of safety; limit analysis

PL

kabel sprężony; kabel kotwiący; stateczność zbocza; współczynnik bezpieczeństwa

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2023
• Tom: Vol. 23, no. 1
• Strony: art. no. e59, 2023
• Opis fizyczny: Bibliogr. 35 poz., rys., tab., wykr.

Twórcy

autor

Hong Yong

• Xi’an University of Architecture and Technology, Xi’an 710055, China

autor

Shao Zhushan

• Xi’an University of Architecture and Technology, Xi’an 710055, China

autor

Wu Kui

• Xi’an University of Architecture and Technology, Xi’an 710055, China

autor

Shi Guangbin

• Xi’an University of Architecture and Technology, Xi’an 710055, China

autor

Wu Saisai

• Xi’an University of Architecture and Technology, Xi’an 710055, China

autor

Jiang Song

• Xi’an University of Architecture and Technology, Xi’an 710055, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)