scholarly journals A Study of the Applicability of Cross-Section Method for Cut-Slope Stability Analysis

2012 ◽  
Vol 22 (1) ◽  
pp. 43-53 ◽  
Author(s):  
Tae-Chin Cho ◽  
Taik-Jean Hwang ◽  
Guen-Ho Lee ◽  
Kye-Seong Cho ◽  
Sang-Bae Lee
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Cross Section ◽  
Slope Stability Analysis ◽  
Cut Slope ◽  
Section Method ◽  
Cross Section Method

scholarly journals Slope Stability Analysis Based on Measured Strains along Soil Nails Using FBG Sensing Technology

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Hua-Fu Pei ◽  
Chao Li ◽  
Hong-Hu Zhu ◽  
Yu-Jie Wang
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Cross Section ◽  
Slip Surface ◽  
Axial Stress ◽  
Limit Equilibrium ◽  
Cost Effective ◽  
Slope Stability Analysis ◽  
Actual Condition ◽  
Soil Nails

In the past few decades, slope stability analysis using numerical methods is becoming a hot issue, but it is based on extremely ideal assumptions. Soil nailing technique, as one of the most cost-effective reinforcing methods, has already been widely used for reinforcing slopes. In this study, to evaluate the safety factor of a slope, the strains on soil nails were measured by fiber Bragg grating (FBG) sensor. Strains along soil nails in the same cross section of a slope can be computed using the measured wavelength shifts of FBG sensors. In order to evaluate the stability of a slope, an optimal model was proposed to search the potential slip surfaces based on measured strain values. Maximum sum of strains on soil nails at different elevations of the same cross section was taken as the objective. Positions of soil nails, circular slip surface, and boundary conditions of the soil nails were summarized and taken as constraints. Finally, safety factors can be computed using the searched slip surface regarding the axial stress of soil nails. This method combines the limit equilibrium methods with measured axial strains on site which can reflect the actual condition of field slopes.

scholarly journals Integrated Analysis Method for Stability Analysis and Maintenance of Cut-Slope in Urban

2021 ◽  
Author(s):  
Mincheol Park ◽  
Heuisoo Han ◽  
Yoonhwa Jin
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Slope Failure ◽  
Slope Stability Analysis ◽  
Velocity Curve ◽  
Integrated Analysis ◽  
Cut Slope ◽  
Analysis Method ◽  
Cut Slopes ◽  
Inverse Velocity

In the process of constructing roads for the development of the city, cut-slopes are made by excavating mountains. However, these cut-slopes are degraded in strength by time-deterioration phenomenon, and progressive slope failure is caused. This study developed an integrated analysis method for stability analysis and maintenance of cut-slopes in urban. The slope stability analysis was performed using the finite element model, and the progressive slope failure by time-dependent deterioration was quantified by using the strength parameters of soil applying the strength reduction factor (SRF). The displacements until the slope failure by slope stability analysis were quantified by cumulative displacement curve, velocity curve, and inverse velocity curve and, applied to the slope maintenance method. The inverse-velocity curve applied to the prediction of the time of slope failure was regressed to the 1st linear equation in the brittle material and the 3rd polynomial equation in the ductile material. This is consistent with the proposed formula of Fukuzono and also shows similar behavior to the failure case in literature. In the future, integrated analysis method should be improved through additional research. And it should be applied to cut-slope to prevent disasters.

scholarly journals A New Slope Stability Analysis Method Based on FEM and Discussion on a Failure Mechanism of a Cut Slope.

Landslides ◽  
2001 ◽  
Vol 38 (2) ◽  
pp. 129-135
Author(s):  
Jie XIONG ◽  
Akitoshi MOCHIZUKI ◽  
Hirofumi YUMIOKA ◽  
Tatsuo MIKI
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Failure Mechanism ◽  
Slope Stability Analysis ◽  
Cut Slope ◽  
Analysis Method

scholarly journals STUDY OF THE STABILITY CONDITIONS OF A HIGH CUT SLOPE ALONG EGNATIA HIGHWAY (ASPROVALTA - MACEDONIA)

2004 ◽  
Vol 36 (4) ◽  
pp. 1833
Author(s):  
Θ. Στιμάρατζης ◽  
Β. Χρηστάρας ◽  
Γ. Δημόπουλος ◽  
A. Κίλιας ◽  
M. Χατζηαγγέλου ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Geographical Information Systems ◽  
Soil Mechanics ◽  
Slope Stability Analysis ◽  
Geographical Information ◽  
Stability Conditions ◽  
Cut Slope ◽  
Topographic Map ◽  
The Stability

This study is about the stability conditions of a high cut slope as well as the possible measures of restoration, along the Egnatia Highway (deviation of Asprovalta). The study includes: the topographic map of the landslide and the 3-D view with the use of Geographical Information Systems, the analysis of geological and petrologie data from the samples of five core drillings, the soil mechanics laboratory tests, the determination of the causes and the landslide mechanisms and finally the slope stability analysis with «classic» methods such as Bishop, Janbu, Morgenstern-Price. A multiple repeated slope stability analysis took place in order to determinate the proper geometry (inclinations) of the slope with new benches. From the analysis of the data, the landslide restoration can be achieved with the combination of measures such as new benches geometry (proposed), surface drainage systems, retaining walls, soil nailing, geogrids and grass mat.

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