ORCID Profile
0009-0004-6170-7517
Current Organisation
University of Wollongong
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Publisher: American Society of Civil Engineers
Date: 08-08-2016
Publisher: American Society of Civil Engineers
Date: 21-07-2016
Publisher: Springer Science and Business Media LLC
Date: 16-03-2004
Publisher: Springer Science and Business Media LLC
Date: 06-11-2004
Publisher: Springer Science and Business Media LLC
Date: 22-08-2016
DOI: 10.1007/S41062-016-0033-8
Abstract: The paper concerns to the reliability analysis of slopes in strain-softening cohesive soils, using the first order reliability method (FORM). The performance function is based on the Bishop simplified method adapted to take strain-softening into account in terms of the residual factor R F over a potential slip surface, estimated based on a progressive failure model available in the literature. The reliability analysis is carried out on the surface of minimum factor of safety determined using the sequential quadratic programming (SQP). The random shear strength parameters are assumed to follow normal distribution while the residual factor has been considered both as a deterministic parameter and a beta-distributed random variable. The results obtained for an illustrative ex le shows substantial reduction (21 %) in the value of reliability index when R F is considered as a random variable with an assumed COV of 0.3. Results of FORM-based sensitivity analyses also reveal that R F has the most dominating influence on reliability and thus justifies its inclusion as one of the random variables. A parametric study, varying the assumed correlation coefficient between the random shear strength parameters from 0 to 1, shows that there is a maximum reduction of 16 % in reliability index.
Publisher: Thomas Telford Ltd.
Date: 02-2018
Abstract: There are many regions worldwide which are susceptible to landslides, which cause loss of life and adverse impacts to infrastructure, environment and communities. Landslides are often triggered by exceptional rainfall and large-magnitude earthquakes. A range of strategies and methods have been developed to mitigate the occurrence of landslides and to reduce their impact, including risk to human safety. The adopted approaches and systems must be sustainable and resilient in relation to the communities that are at risk. This paper refers to an Australian regional case study of urban landslide management in the Wollongong region, New South Wales. The research carried out by the authors over two decades at the University of Wollongong has enhanced the resilience and sustainability of landslide management in the region. Reference is also made to Hong Kong as a case study of urban regional landslide practice, with particular reference to the upgrading of man-made slopes.
Publisher: Springer Science and Business Media LLC
Date: 02-2003
Publisher: Thomas Telford Ltd.
Date: 04-2001
Publisher: Springer Science and Business Media LLC
Date: 15-06-2017
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Robin Chowdhury.