Howie Pince has over twenty years of IT support experience. His past experiences include IT support for many industries such as research and development, banking, manufacturing, and medical.
FLAC3D TMis a numerical modeling code for advanced geotechnical analysis of soil, rock, and structural support in three dimensions. FLAC3D is used in analysis, testing, and design by geotechnical, civil, and mining engineers.
This FLAC3D V7.0 training course accommodates new and experienced users. It will be based on examples that attendees will develop and run by themselves to better grasp the mechanics of using FLAC3D V7.0, the key underlying calculation principles and the spectrum of available features. Attendees are encouraged to bring one of their specific cases that may be discussed.
The upcoming 70th annual Highway Geology Symposium will be held in Portland, Oregon, October 21st through October 24th, 2019.
Mr. Lucarelli has a background in soil mechanics, numerical modeling of geotechnical processes, shallow and deep foundation design, soil improvement, slope stability, mechanized excavation, conventional tunneling in urban areas, deep excavation and support structures in difficult environments.
A FLAC3D model of a raft foundation, multi-story building was used to assess the possibility of eliminating piles or jet-grouting columns from its initial design in favor of a thicker foundation. This would provide considerable savings in terms of costs, time, and site management.
Working with Studio Colleselli & Partners, the foundation designer, a custom script was developed by HARPACEAS to convert midas
GEN structural models into compatible FLAC3D structural elements
(including all beams, shells, and plates - correctly interconnected - to
simulate slabs, pillars, and floors connected with the raft foundation)
with all acting loads (structural and non-structural dead loads and
variable loads in SLS* quasi-permanent conditions).
For a correct
estimation of settlements it was necessary to consider the stress path
(lithostatic conditions, unloading due to excavation up to 8 m, and
reloading up to maximum stress due to design loads considering the
complete multi-story building). For this reason the Plastic Hardening
soil model was applied.
The maximum settlement was predicted to
be about 34 mm with negligible differential settlement. Negligible
distortions and tilting were also predicted. Therefore, the thicker raft foundation, without piles or jet-grouting columns, was sufficient. The FLAC3D model was also validated by comparison with a "simplified" model based on the Boussinesq
Thanks to the ability to import the midas GEN structural model into FLAC3D, it has been possible to consider the structures realistic stiffness which resulted in predictions of negligible differential settlements and significant cost savings.
*Note: SLS = Serviceability limit state
DOWNLOAD the PRESENTATION (PDF, 4.4 MB)
For more information, please contact HARPACEAS or Studio Colleselli & Partners.