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Reliability Analysis of Slope Reinforced by Frame-Anchors Based on Failure of a Single Anchor
When analyzing the stability of a slope reinforced by frame-anchors, this paper establishes a calculation model of slope stability by using the vertical slice method, and derives the stability performance function. In order to make up the shortcomings of the traditional deterministic calculation method, regarding the physical parameters of the soil as random variables, the slope stability is calculated based on the reliability theory. Applying the method to an engineering example, the reliability index of the overall stability of the slope under the failure of a single anchor is calculated. Finally, by applying the finite element software, GeoStudio, the reliability of the stability in the engineering example is analyzed, and the two methods are compared and evaluated. The results show that the failure of the anchor near the foot of the slope has the greatest impact on the stability of the slope. The theoretical calculations are in good agreement with the numerical simulation results. The proposed method is effective for the stability calculation of slopes reinforced by frame-anchors. The impact of the failure of a single anchor cannot be ignored, especially the anchors at the foot of the slope, whose design should follow the principle of “strengthening foot and waist” to avoid the hidden danger to the overall stability brought about by the failure of the anchor.
Reliability Analysis of Slope Reinforced by Frame-Anchors Based on Failure of a Single Anchor
When analyzing the stability of a slope reinforced by frame-anchors, this paper establishes a calculation model of slope stability by using the vertical slice method, and derives the stability performance function. In order to make up the shortcomings of the traditional deterministic calculation method, regarding the physical parameters of the soil as random variables, the slope stability is calculated based on the reliability theory. Applying the method to an engineering example, the reliability index of the overall stability of the slope under the failure of a single anchor is calculated. Finally, by applying the finite element software, GeoStudio, the reliability of the stability in the engineering example is analyzed, and the two methods are compared and evaluated. The results show that the failure of the anchor near the foot of the slope has the greatest impact on the stability of the slope. The theoretical calculations are in good agreement with the numerical simulation results. The proposed method is effective for the stability calculation of slopes reinforced by frame-anchors. The impact of the failure of a single anchor cannot be ignored, especially the anchors at the foot of the slope, whose design should follow the principle of “strengthening foot and waist” to avoid the hidden danger to the overall stability brought about by the failure of the anchor.
Reliability Analysis of Slope Reinforced by Frame-Anchors Based on Failure of a Single Anchor
Soil Mech Found Eng
Ye, Shuai-Hua (author) / Ding, Sheng-Huan (author) / Tao, Jun (author)
Soil Mechanics and Foundation Engineering ; 59 ; 513-520
2023-01-01
8 pages
Article (Journal)
Electronic Resource
English
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