The authors have worked on the design and control of jet grouted structures for years, collecting a relevant amount of experimental data and characterizing the variability of the properties of the single columns with probabilistic models. In time, they have proposed deterministic, semiprobabilistic or probabilistic methods to include the observed and unavoidable randomness of columns properties in the design of jet grouted structures. Starting from the gained mass of information and experience, this paper sorts out the main issues for the design of two of the most relevant examples of jet grouted structures: massive jet grouted bottom plugs and foundation reinforcement with isolated columns. Design considerations will be drawn considering the characteristics of jet grouting within the framework of EC7, discussing pros and cons of the use probabilistic and determinist approaches.
Subjects: None provided
Author: Alessandro Flora, Ph.D., Giuseppe Modoni, Stefania Lirer and Valeria Nappa
Publisher: DFI, EFFC