คณาจารย์ประจำคณะวิศวกรรมศาสตร์ » รองศาสตราจารย์ ดร. สยาม ยิ้มศิริ

Research Focus

An internationally recognized figure in geotechnical engineering, his work spans the mechanics of granular soils at the micro-scale to practical foundation design in the field. Using discrete element modeling, he has examined how soil fabric governs the behavior of sand, studied soil–pipeline interaction for buried infrastructure, and characterized the small-strain stiffness of natural clays — while also tackling applied problems such as standard penetration test energy ratios in Thailand, engineering characterization of bedrock for rock-socketed piles, and ground-borne vibration from pile driving.

Selected Publications

• “DEM analysis of soil fabric effects on behaviour of sand” — Géotechnique, 2010.
• “Lateral and upward soil-pipeline interactions in sand for deep embedment conditions” — Journal of Geotechnical and Geoenvironmental Engineering, 2004.
• “Micromechanics-based stress–strain behaviour of soils at small strains” — Géotechnique, 2000.
• “Engineering Characterization of Bedrock and Design of Rock-Socketed Bored Pile in Eastern Thailand” — Geotechnical Engineering Journal of the SEAGS & AGSSEA (with S. Eua-apiwatch, W. Ratananikom). (article)
• “Ground-Borne Vibration and Noise from Impact Pile Driving: Case Studies of Two Regions in Thailand” — Geotechnical and Geological Engineering, 2025. (article)

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