Geotechnical and railway engineering insights are presented through technically grounded articles, where design code comparisons, underlying calculation principles, and the integration of academic knowledge with field practice are systematically explored. Practical observations, construction methodologies, and selected site photographs are incorporated to support engineering judgement, alongside discussions on assumptions, uncertainties, and the responsible application of simplified methods.
During an earthquake, certain saturated granular soils can lose strength entirely and begin to flow. This article explains the physics behind it, how engineers quantify the risk, and where standard methods reach their limits.
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Why HS uses separate stiffness branches (E50, Eoed, Eur), how stress-level scaling and reference pressure work, and why calibration matters in settlement-dominated problems.
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