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Long-term deformation and damage analysis of marine clay around seawalls under coupled dynamic-seepage loading.
- Source :
-
Marine Georesources & Geotechnology . Dec2023, Vol. 41 Issue 12, p1484-1495. 12p. - Publication Year :
- 2023
-
Abstract
- The long-term deformation characteristics and damage degree of soft marine-deposited clay must be evaluated to safely design seawalls. According to abundant field evidence, soft marine-deposited clay tends to experience coupled dynamic loading and seepage loading. Determining the critical load and damage index for these complex loading conditions is imperative. With Tianjin marine-deposited clay as an example, we employed an improved cyclic triaxial instrument to analyse the cumulative plastic strain, water discharge and stress–strain relationship of the clay to understand its long-term deformation development. Based on shakedown theory, the critical cyclic stress ratio (CSR) was determined. A multi-factor damage variable method was proposed to evaluate the damage degree. Its comparison with a traditional mono-factor damage variable method illustrated that this method is effective for damage analyses of marine clay around seawalls under coupled dynamic-seepage loading. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SEA-walls
*CLAY
*CYCLIC loads
*DEFORMATIONS (Mechanics)
*DYNAMIC loads
Subjects
Details
- Language :
- English
- ISSN :
- 1064119X
- Volume :
- 41
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Marine Georesources & Geotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 174083972
- Full Text :
- https://doi.org/10.1080/1064119X.2022.2141161