Sensitivity analysis of load transfer curves in case of rigid inclusions
Sensitivity analysis of load transfer curves in case of rigid inclusions
The soil reinforcement by rigid inclusions is usually a suitable solution in various projects such as shallow foundations, slab-on-grade, embankments, tanks, etc. In most cases, the settlement is a key point. The interactions between the rigid inclusion and the surrounding soil must therefore be well established, especially the behaviour laws along the shaft (skin friction) and at the tip (end-bearing). In France, the Frank and Zhao load transfer curves are often used to model those interactions. The input parameters are determined from the pressuremeter tests. Those tests are not always available, especially outside France. Some authors and standards have proposed other load transfer curves. This article summaries the main used interaction behaviour laws and presents sensitivity analysis, based on simulated load tests on isolated rigid inclusions and also based on regular design cases.
Pierre Burtin; Jerome Racinais
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
D - Current and new construction methods
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