Deep Urban Excavation Analysis and
Optimization in MIDAS GTS NX
Watch how a 24-profile staged excavation analysis in MIDAS GTS NX validated and optimized a retaining system next to degraded neighboring structures — cutting pile length by 23% and temporary steel by more than half, without relaxing a single deformation limit.
Register Now →Validating and optimizing a retaining system without relaxing deformation limits
A residential complex in a dense urban area required a deep excavation immediately next to existing buildings already showing cracks, settlement and long-term degradation. The geotechnical expert assessment set strict limits — 10 mm maximum horizontal displacement of the retaining structure, 14 mm maximum settlement, 7 mm relative settlement — that the numerical model had to confirm at every construction stage, not only the final configuration.
This session walks through the full MIDAS GTS NX workflow behind that validation: 24 representative profiles built around a hardening soil model, staged construction simulation from pile installation through strut removal, and the optimization process that followed once the results came back.
WHO IT'S FOR
Geotechnical and structural engineers working on urban excavations near sensitive or vulnerable existing structures
FORMAT
Live technical webinar with Q&A
SOFTWARE SHOWN
MIDAS GTS NX — staged construction and soil-structure interaction analysis
FOCUS
Multi-profile validation and optimization of a retaining system under strict deformation limits
3 Highlights From The Model
Multi-Profile Staged Modelling
24 distinct 2D profiles along the excavation perimeter, each reproducing its own soil stratification, groundwater level and neighboring geometry.
Soil-Structure Interaction & Dewatering
Interface elements between soil and retaining piles, combined with staged groundwater lowering, to capture the real transfer of stresses through each phase.
Design Optimization
Comparing the conservative initial retaining scheme against the staged-analysis result: 23% less pile length and over 55% less temporary steel, all within the imposed deformation limits.
What you'll take away
By the end of this live session, you'll see how staged numerical analysis turns a conservative urban excavation design into a validated, optimized retaining solution in MIDAS GTS NX.
Building a multi-profile staged excavation model
Set up 2D staged-construction models in MIDAS GTS NX using the hardening soil model, reproducing borehole stratification, groundwater level and construction sequence for each governing profile.
Reading deformation results against expert-assessment limits
Check horizontal pile displacement, ground settlement and relative settlement of neighboring foundations at every stage, not only the final configuration.
Turning validation results into an optimized design
See how profile-by-profile results were used to reduce pile length, concrete volume, reinforcement and temporary steel while keeping every deformation criterion satisfied.
Meet your presenter
%20Ionut.jpeg)
Ionuț Emil Iancu
Ionuț Emil Iancu is a structural engineer with extensive experience in the design and coordination of complex structural projects. He has contributed to the development of numerous projects across various sectors, including residential buildings, office buildings, public facilities, multi-purpose halls, swimming pools, and hospitals.
He holds a PhD in Civil Engineering, and his expertise focuses on reinforced concrete structures and geotechnical works, including special foundations, deep excavations, and retaining systems.
Save your seat for the live session
Join Ionuț Emil Iancu's live session on deep urban excavation analysis and optimization in MIDAS GTS NX, on September 2, 2026.
