An incremental model for cyclic compaction of sand

作者：Holscher Paul^*

来源：Soil Dynamics and Earthquake Engineering, 2018, 105: 27-36.

DOI：10.1016/j.soildyn.2017.11.010

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].

• 出版日期2018-2