A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Case Study: Unsaturated Embankment Failure on Soft Soils
This paper describes the application of unsaturated soil mechanics to an interstate connecting-ramp embankment that failed during construction. Specifically, matric suction is incorporated into the calculation of the tension crack (TC) depth induced by desiccation and strain incompatibility and the contribution of matric suction to embankment shear strength. The results are compared with field observations to assess the viability of unsaturated soil mechanics in modeling compacted embankments in stability analyses. Results from this study suggest that using unsaturated shear strength parameters while introducing a TC in the compacted fill yields a reasonable inverse analysis of this interstate embankment. This may be preferred in slope stability analyses to the current practice of using an undrained shear strength (i.e., cohesion) for the unsaturated compacted fill and including a TC to generate a reasonable factor of safety.
Case Study: Unsaturated Embankment Failure on Soft Soils
This paper describes the application of unsaturated soil mechanics to an interstate connecting-ramp embankment that failed during construction. Specifically, matric suction is incorporated into the calculation of the tension crack (TC) depth induced by desiccation and strain incompatibility and the contribution of matric suction to embankment shear strength. The results are compared with field observations to assess the viability of unsaturated soil mechanics in modeling compacted embankments in stability analyses. Results from this study suggest that using unsaturated shear strength parameters while introducing a TC in the compacted fill yields a reasonable inverse analysis of this interstate embankment. This may be preferred in slope stability analyses to the current practice of using an undrained shear strength (i.e., cohesion) for the unsaturated compacted fill and including a TC to generate a reasonable factor of safety.
Case Study: Unsaturated Embankment Failure on Soft Soils
Ellithy, Ghada S. (author) / Stark, Timothy D. (author)
2020-10-14
Article (Journal)
Electronic Resource
Unknown
Embankment Failure on Soft Soils - Case History
| British Library Conference Proceedings | 1998
Geogrid-reinforced roadway embankment on soft soils: A case study
| British Library Conference Proceedings | 2007
Embankment Settlement Calculation Based on the Unsaturated Soils Theory
| Trans Tech Publications | 2013
Embankment Settlement Calculation Based on the Unsaturated Soils Theory
| Tema Archive | 2013