Geotechnical system reliability of slopes
WebReliability-based design methods were originally developed to model low rate of occurrence and high risk problems such as those encountered in nuclear design [6]. To accurately apply these methods in the geotechnical domain, realistic descriptions of measurement errors, model errors and the spatial variability of soil properties are required [8]. WebApr 5, 2024 · In earthwork and geotechnical engineering design, the soil parameters as basic inputs of the design model are inherently uncertain. If those uncertainties are not taken into consideration, the design results will be significantly different from the actual situation, making it difficult to ensure the safety of the structure in a changing environment. 1 To …
Geotechnical system reliability of slopes
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WebFeb 7, 2024 · The total number of sections is determined based on the potential number of discrete failures along the embankment. Then, for two types of engineering embankment, the series system and the k-out-of-n system are used to model the relationship between section reliability and embankment system reliability. Finally, section target reliability ... WebIn situ ground reinforcement is a technique to stabilize existing unstable ground due to the change of geotechnical conditions by nature and/or human activities. Ground anchors, …
WebSolution of problems in structural mechanics that contain sources of input or system uncertainty; reliability, random vibrations, homogenization, stochastic differential equations and other topics. CE-ENGIN 630 Advanced Solid Mechanics Unified treatment of the analysis of solids. Consideration of continuity, mechanical energy, stress and strain. WebJun 6, 2009 · Evaluating the reliability of a slope is a challenging task because the possible slip surface is not known beforehand. Approximate methods via the first-order reliability method provide efficient ways of evaluating failure …
WebOct 1, 2024 · A slope fails if it slides along any slip surface. Proper assessment of slope failure risk in geological and geotechnical engineering needs to account, rationally, for a large, or even unlimited ... WebApr 14, 2024 · The dynamic reliability of the slope caused by the MAS decreases by 13% with the COV C increasing from 0.1 to 0.3 when the PGA is 0.5 g, and the displacement threshold is 1 m. When the COV C is 0.3, the dynamic reliability of the slope under the action of the MAS is also reduced by 13% compared with the single mainshock. In …
WebApr 7, 2016 · The system reliability analysis is applied using polar co-ordinates, as this approach has been shown to be less sensitive to local numerical instabilities, which can develop due to discontinuities on the limit state surface. The approach is applied to two example slopes where the complexity in terms of stratification and slope geometry is …
WebSep 27, 2024 · Reliability analysis provides a more effective method for slope stability evaluations and design because it can reflect the uncertainties of slopes. In this study, a generalized probability density evolution method (GPDEM) is proposed to evaluate the system stability reliability of multi-parameters complex slopes. This method is … thor ivar oalandWebSep 1, 2015 · This slope has been extensively used to explore the slope system reliability problems (e.g., Chowdhury and Xu 1995;Ching et al. 2009;Zhang et al. 2013;Yang et al. 2024; Li et al. 2016b Li et al ... thori vegetablesWebMay 10, 2012 · Reliability index of slopes is defined by mean safety factor separating from unity, divided by number of standard deviations of safety factor. Once the shape of probability density function is estimated, the reliability index can be used to estimate the probability of failure. umbc beats virginia 2018WebGeotechnical engineering; Wenbo Lu mainly investigates Geotechnical engineering, Rock mass classification, Excavation, Stress and Structural engineering. ... Stochastic response surface method for reliability analysis of rock slopes involving correlated non-normal variables (184 citations) ... A system reliability approach for evaluating ... umbc book centerWebNov 13, 2024 · Inherent soil variability, measurement errors and transformation uncertainty are the three primary geotechnical uncertainties. Random field theory (RFT) is the most … thor ivar bergWebMar 27, 2024 · A new response surface method (RSM) for slope reliability analysis was proposed based on Gaussian process (GP) machine learning technology. The method involves the approximation of limit state function by the trained GP model and estimation of failure probability using the first-order reliability method (FORM). A small amount of … umbc basketball coachesWebMar 14, 2024 · The traditional safety factor method cannot consider the uncertainty in the slope system, and the reliability theory based on probability and statistics can more objectively evaluate the degree of influence on the slope, which has become a trend of slope stability evaluation. In this paper, the spatial variability of soil strength parameters … umbc bursar office