- Title
- Probabilistic design of slopes in normally consolidated clays
- Creator
- Zhu, Desheng; Griffiths, D. V.; Huang, Jinsong; Fenton, Gordon A.
- Relation
- Geo-Risk 2017. Geo-Risk 2017: reliability-Based Design and Code Developments (Denver, CO 4-7 June, 2017) p. 471-479
- Publisher Link
- http://dx.doi.org/10.1061/9780784480700.045
- Publisher
- American Society of Civil Engineers (ASCE)
- Resource Type
- conference paper
- Date
- 2017
- Description
- Natural soils always exhibit spatial variability with the properties varying from point to point. The majority of probabilistic slope stability analyses model strength parameters as stationary random fields, i.e. the mean and standard deviation of strength are constant everywhere. Due to the influence of the effective overburden pressure however, normally consolidated soils regularly display an increasing undrained strength trend with depth. Using recently published deterministic solutions as a benchmark, this paper uses random finite element method (RFEM) to investigate the influence of spatial variability on the undrained stability of non-stationary random slopes, where the mean strength increases linearly with depth while the coefficient of variation remains constant. Results are presented in the form of charts that give the mean and standard deviation of the dimensionless stability number. By reading the charts presented in this paper, engineers can obtain a preliminarily assessment of the probability of slope failure for normally consolidated clay slopes.
- Subject
- natural soils; spaitial variability; slope stability; consolidated soils; probability; clays; soil strength; finite element method; slopes
- Identifier
- http://hdl.handle.net/1959.13/1388433
- Identifier
- uon:32755
- Identifier
- ISBN:9780784480700
- Language
- eng
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