... (null probability) to 1 (maximum probability). This index can be defined according to the presence and intensity of several causative factors, which were identified and scored on the basis of the scale of interest and the environment considered. Specifically, the small and the detailed scales...

... is not able to guarantee a specific failure probability and, consequently, to assess the precise risk reduction. To tackle all these issues, a quantitative risk assessment method for infrastructures and a time-integrated reliability design approach for rockfall barriers developed by the Authors are combined...

... intensity and the damage rate. Using this relationship and the earthquake probability provided by official organization, the seismic risk that is very useful tool to plan appropriate earthquake countermeasures can be evaluated. INTRODUCTION In Japan, which is well known for its frequent occurrence...

... the inclination is about 20∼30° and one can find dense forest vegetation and top soil, a talus type formation. In addition, on Figure 1 (c) the vertical rockface can be observed on frontal view. structural geology geomechanics probability geologist reservoir geomechanics risk management inspection...

... masses with varying qualities and subjected to different static loads. Fragility curves were constructed using a stress-based failure criterion to measure the severity of brittle damage. Mathematical approximations were used to generate vulnerability functions linking occurrence probabilities of damage...

... to resist these loads. However, current approaches do not explicitly consider the likelihood of occurrence of such loads. This paper proposes a methodology using binomial probability theory to incorporate the likelihood of a given rock load and calculate the corresponding probability of exceedance...

... natural hazards and 17 technological hazards; see Table 3. For mining hazards, hazard qualification relies on predisposing factors. However, natural and technological hazard qualifications are based on the probability of occurrence or the severity of a hazardous event, meaning that a qualitative, semi...

... transportation assessment austria government risk and uncertainty assessment block 1 block 2 block 3 event scenario rockfall hazard afry gmbh infrastructure equation hazard analysis naturgefahren probability risk management hazard analysis natural hazard 15th ISRM Congress 2023 & 72nd...

... of the design's uncertainties. In this study, the First Order Reliability Method (FORM) was used to determine the reliability of a pit slope design through a probability of failure. Data from the Bozshakol copper mine located in north Kazakhstan was used in this study. The input data for the FORM analysis were...

... by the probability of failure. The boundary between acceptable and non-acceptable structural performance is defined as a limit state G( x ) , given in terms of random variables x . Probability theory is then used to compute the probability of failure as, (equation) where f x ( x ) represents the joint...

... an increasing trend. 2) The stability of the slope is related to the ground motions. Vulnerability analysis can be used for quantitative analysis of slope safety. 3) The slope considering the change of anchor cable force has a greater probability of instability. Simplifying the anchor cable to constant loads...

... for reconstructing the three-dimensional morphology of the slopes and determining a range of detailed information. geologist risk and uncertainty assessment ground transportation artificial intelligence rofraq probability reserves classification machine learning risk management assessment geology...

... magnitude energy release australia government correlation geologist rock type probability forecast numerically simulated rate engineering upstream oil & gas reservoir characterization seismicity seismic potency seismic potential mining likelihood hazard beck engineering 15th ISRM...

... rock mechanic three-point estimation construction excavation sequence probability shotcrete 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Modeling uncertainty of activity duration in probabilistic time estimation of tunneling projects Mohammad...

... gerais probability rupture 1 structural geology saprolite importance deformation rupture mechanism rotation chlorite schist stability Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367-42284-4 Importance...

... enough mitigation to reduce to the expected risk level. In turn, this strategy needs to consider how the rockfall risk (not just the hazard) is distributed throughout the site. mitigation rockfall hazard infrastructure inventory grid probability likelihood effectiveness implementation...

..., seismicity, or other sources of vibration (e.g., drilling or blasting in adjacent stopes), has been identified as a key mechanism of rockbursts (Feng 2017). Blasting was found to increase the probability of rockbursts by up to 500 percent, depending on the distance and amount of blasting. From a diurnal...

... Abstract This papers aims at determining the stability zones of the critical span graph, used to design underground excavations. A methodology based on the multinomial logistic regression is employed to identify these zones with their corresponding probabilities. Cases of stable, potential...

... prediction of rock fall from the tunnel faces based on image analysis. The method can evaluate the degree of both weathering and crack crossing of the tunnel face and calculate probability of rock fall based on the records of rock fall from the tunnel face with similar characteristics of weathering and crack...

... and loss in broken rock with water flow were investigated experimentally to judge the probability of occurrence of seepage instability in the broken structure. It was found that if the lost mass ratio was not less than 4.90%, seepage instability would occur, and if the lost mass ratio was not larger than...