A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Future Directions in Reliability-Based Geotechnical Design
World-wide, geotechnical design codes-of-practice are increasingly targeting acceptable failure probabilities, rather than factors of safety, since the latter do not provide an accurate estimate of safety, despite their name. This trend requires an ever-increasing understanding of the probabilistic behaviour of geotechnical systems. As a result, probabilistic geotechnical models are becoming more complex, yet more realistic. In particular, models which consider the effects of the ground’s spatial variability on failure probability of geotechnical systems are rapidly gaining popularity. This is because it is well known that spatial variability leads to weakest paths which are preferentially followed by geotechnical failure mechanisms. The paper begins by looking at the current state-of-the-art in probabilistic ground models. The effect of spatial variability on geotechnical system failure probability is discussed, followed by how the random finite element method (RFEM) has and can be used to aid in the calibration of geotechnical design codes-of-practice. The paper finally looks at what is needed in the future to further improve cost effective geotechnical design practices while increasing overall geotechnical system reliability.
Future Directions in Reliability-Based Geotechnical Design
World-wide, geotechnical design codes-of-practice are increasingly targeting acceptable failure probabilities, rather than factors of safety, since the latter do not provide an accurate estimate of safety, despite their name. This trend requires an ever-increasing understanding of the probabilistic behaviour of geotechnical systems. As a result, probabilistic geotechnical models are becoming more complex, yet more realistic. In particular, models which consider the effects of the ground’s spatial variability on failure probability of geotechnical systems are rapidly gaining popularity. This is because it is well known that spatial variability leads to weakest paths which are preferentially followed by geotechnical failure mechanisms. The paper begins by looking at the current state-of-the-art in probabilistic ground models. The effect of spatial variability on geotechnical system failure probability is discussed, followed by how the random finite element method (RFEM) has and can be used to aid in the calibration of geotechnical design codes-of-practice. The paper finally looks at what is needed in the future to further improve cost effective geotechnical design practices while increasing overall geotechnical system reliability.
Future Directions in Reliability-Based Geotechnical Design
Fenton, Gordon A. (author) / Griffiths, D. V. (author) / Naghibi, Farzaneh (author)
Geo-Risk 2017 ; 2017 ; Denver, Colorado
Geo-Risk 2017 ; 69-97
2017-06-01
Conference paper
Electronic Resource
English
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