Nicola has a degree in geology from the University of Portsmouth and has previous experience in working in the mining and waste management business sectors.
She is responsible for maintaining ICL’s ISO9001 quality standard and has responsibility for all aspects of Itasca software codes and administrative support for ICL’s own software InSite, as well as the day to day running of the office.
The Fifth International Itasca Symposium will be held at the University of Vienna (Austria). The Symposium will features the application of Itasca software for solving engineering and scientific challenges in geomechanics, hydrogeology, microseismicity, and more.
Mr. Flynn is an applied physicist with a diverse technical background with over 20 years of experience in instrumentation and measurement systems, with a focus on acoustic emission and ultrasonic monitoring for the past 8 years.
He is the General Manager of the ICL office and also the product manager for ICL’s range of hardware products.
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.
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 its real 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.
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