An incremental model for cyclic compaction of sand. Issue 105 (February 2018)

• Record Type: Journal Article
• Authors: Hölscher, Paul
• Is Part Of: Soil dynamics and earthquake engineering. Issue 105(2018)
• Page Start: 27
• Page End: 36
• Publication Date: 2018-02
• Subjects: Soil dynamics -- Periodicals; Earthquake engineering -- Periodicals; Sols -- Dynamique -- Périodiques; Génie parasismique -- Périodiques; 624.176205
• DOI: 10.1016/j.soildyn.2017.11.010
• Languages: English
• ISSNs: 0267-7261

Abstract

Abstract: This paper presents an incremental objective model for the compaction of sand under cyclic triaxial loading. The model is derived on the assumption that on the long-term a cyclic loading will lead to the maximal attainable density, irrespective of the amplitude. To obtain an objective model, an incremental description is essential. It turns out that a model with three state variables is able to describe the observed behavior over the full time scale. These three state variables together define two compaction processes: a fast one and a slow one. The proposed model is tested against the empirical data obtained by Wichtmann and Triantafyllidis[1] and short term tests by Deltares. It is shown that the model also describes the observed behavior in short term tests and tests with multiple loading stages[2] . Abstract : Graphical abstract: Abstract : Highlights: Incremental objective model for compaction of sand. Compaction is divided in a slow and a fast process. Compaction must be described by three state variables. Validated against cyclic triaxial tests.