Transformation from Classical 2D to Digital 3D Thinking Process in the Design of Geotechnical Structures: Perspective of a Geotechnical ConsultantÂ-PPT Presentation

PPT Presentation

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The presentation describes a digital 3D workflow for designing geotechnical foundations, illustrated by two large LNG tanks. The process moves from digital field data collection to a 3D subsoil model, a calculation model, and automated client reporting.<br /><br />Each tank required about 400 bored piles, founded in rock beneath highly variable ground conditions. Although numerous boreholes were available, their quantity did not guarantee quality: data needed cleaning, and 2D sections made it difficult to understand the complex geology. A 3D subsoil model created in Leapfrog Works helped visualize the bearing layer, assess geotechnical and dynamic properties, evaluate liquefaction risk, and support shared decisions among project stakeholders.<br /><br />The model also helped interpret pile-load-test results. Comparing predicted rock depths with observations during piling revealed discrepancies, partly attributable to weak initial investigations and the difficulty of documenting geology accurately during construction. The example highlights that 3D models are useful but remain dependent on reliable input data and careful validation.<br /><br />The team also developed automation using Python, parametric modeling, software interfaces, and report generation. These methods can reduce human error, improve quality and responsiveness, and increase client and employee satisfaction.<br /><br />A fully digital process is not yet feasible because of issues such as mobile tools, software interoperability, and uneven software quality. Nevertheless, digital working can make uncertain subsurface conditions more understandable, accelerate work, reduce errors, and improve collaboration.

Keywords

3D subsoil model

geotechnical foundations

LNG tanks

bored piles

rock depth

liquefaction risk

Leapfrog Works

pile load test

digital workflow

automation