Interactive Evaluation of the Reliability of Engineered Slopes Utilising Multi-source Monitoring Information

Important engineered slopes are often heavily instrumented and their performance routinely monitored through these instruments. The evaluation of the safety of the slopes based on the monitored information is however a challenge. A systematic method is presented in this paper for evaluating the slope safety by combining multi-source monitoring...

Stability Analysis of Unsaturated Soil Slope Considering the Variability of Soil-water Characteristic Curve

Soil slopes are generally unsaturated in which the soil-water characteristic curve (SWCC) plays an important role in its hydro-mechanical response. The commonly used Mohr-Coulomb failure criterion in saturated soil mechanics could be extended to take SWCC into account which is then able to determine the shear strength of unsaturated soil. Like...

Effect of Laboratory Repeatability of Direct Shear Test on Slope Stability

The present work quantified the laboratory geotechnical variability by repeatability direct shear test (DS) on alluvial fine-grained soils. The effect of laboratory variability of geotechnical parameters (cohesion c' and friction angle ϕ′) on slope stability was investigated. A mixture of compacted fine sand (40%) and clayey silt (60%) taken...

Probabilistic Slope Stability Analysis using RFEM with Non-Stationary Random Fields

Using recently obtained deterministic results as a benchmark, probabilistic slope stability analyses have been performed on an undrained slope using the random finite element method (RFEM). Non-stationary random fields have been generated with linearly increasing mean undrained strength and a constant coefficient of variation. The influence of...

Slope Stability Assessment Based on Limit Analysis

Most of the research findings in evaluating slope stability using limit analysis are chart-based. No such stability chart is available to cover a wide range of material strength, slope geometries and external disturbance. Practitioners find it difficult to use the charts for a specific slope project. Compared with a large number of existing...