期刊
COMPUTERS AND GEOTECHNICS
卷 107, 期 -, 页码 150-162出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2018.12.004
关键词
Inverse analysis; Excavation; Three-dimensional effect; Parameter identification; Finite element method; Observational method
类别
资金
- NRF's Campus for Research Excellence and Technological Enterprise (CREATE) program [FI 370074011]
In the literature, the plane-strain assumption usually forms the basis of inverse analyses of excavations, mainly due to the high computational cost of 3D analyses. In this paper, a procedure that quantifies three-dimensional effects of excavation is proposed. Such three-dimensional effects are represented as an uncertainty term that corrects plane-strain-based predictions, thereby offering an alternative approach to perform 3D inverse analysis without excessive computations. The results of an inverse analysis performed on an excavation case history show that (i) the procedure is able to quantify three-dimensional effects reasonably well and (ii) improved predictions of excavation field responses can be obtained.
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