Experimental and numerical investigation of lateral load-displacement behavior of piles in soft clay

Bildiriler > Özet Bildiri · 2026

Yazarlar: Emre KALFA, Tuğçe TUFAN ERENER, Ayhan NUHOĞLU, Alper SEZER, Devrim Şüfa ERDOĞAN, Mehmet Fahrettin ERENER

7th Eurasian Conference on OpenSees, İsviçre, Lozan, Uluslararası, Sözlü Sunum, Özet Bildiri, 2026-2026, ss 40-40

Özet

<p>This&nbsp;study&nbsp;presents&nbsp;an&nbsp;experimental&nbsp;and&nbsp;numerical&nbsp;investigation&nbsp;of&nbsp;the&nbsp;lateral&nbsp;load-displacement&nbsp;behavior&nbsp;of&nbsp;monopiles&nbsp;embedded&nbsp;in&nbsp;soft&nbsp;clay.&nbsp;Small-scale&nbsp;field&nbsp;loading&nbsp;tests&nbsp;were&nbsp;performed&nbsp;on&nbsp;composite&nbsp;monopiles&nbsp;formed&nbsp;by&nbsp;casting&nbsp;concrete&nbsp;within&nbsp;steel&nbsp;sections.&nbsp;Rapid&nbsp;loading&nbsp;was&nbsp;applied&nbsp;at&nbsp;the&nbsp;pile&nbsp;head&nbsp;to&nbsp;induce&nbsp;an&nbsp;undrained&nbsp;soil&nbsp;response&nbsp;representative&nbsp;of&nbsp;short-term&nbsp;loading&nbsp;conditions.&nbsp;The&nbsp;measured&nbsp;load-displacement&nbsp;curves&nbsp;were&nbsp;used&nbsp;for&nbsp;validation&nbsp;of&nbsp;finite&nbsp;element&nbsp;models&nbsp;developed&nbsp;in&nbsp;the&nbsp;OpenSeesPL&nbsp;framework.&nbsp;Soil&nbsp;behavior&nbsp;was&nbsp;represented&nbsp;using&nbsp;the&nbsp;Pressure&nbsp;Independent&nbsp;Multi&nbsp;Yield&nbsp;(PIMY)&nbsp;constitutive&nbsp;model&nbsp;to&nbsp;capture&nbsp;the&nbsp;undrained&nbsp;response&nbsp;of&nbsp;cohesive&nbsp;soils.&nbsp;In&nbsp;addition,&nbsp;the&nbsp;soil-pile&nbsp;interface&nbsp;was&nbsp;explicitly&nbsp;modeled,&nbsp;and&nbsp;its&nbsp;representation&nbsp;was&nbsp;validated&nbsp;against&nbsp;experimental&nbsp;observations.&nbsp;The&nbsp;influence&nbsp;of&nbsp;interface&nbsp;material&nbsp;properties&nbsp;and&nbsp;finite&nbsp;element&nbsp;size&nbsp;on&nbsp;the&nbsp;predicted&nbsp;response&nbsp;was&nbsp;investigated.&nbsp;Following&nbsp;validation,&nbsp;the&nbsp;experimental&nbsp;results&nbsp;were&nbsp;interpreted&nbsp;using&nbsp;appropriate&nbsp;scaling&nbsp;laws&nbsp;to&nbsp;estimate&nbsp;the&nbsp;lateral&nbsp;load&nbsp;capacity&nbsp;and&nbsp;displacement&nbsp;response&nbsp;at&nbsp;prototype&nbsp;scale.&nbsp;The&nbsp;derived&nbsp;responses&nbsp;were&nbsp;then&nbsp;compared&nbsp;with&nbsp;p-y&nbsp;curves&nbsp;available&nbsp;in&nbsp;the&nbsp;literature.&nbsp;Overall,&nbsp;the&nbsp;combined&nbsp;experimental&nbsp;and&nbsp;numerical&nbsp;results&nbsp;provide&nbsp;improved&nbsp;insight&nbsp;into&nbsp;the&nbsp;behavior&nbsp;of&nbsp;laterally&nbsp;loaded&nbsp;piles&nbsp;in&nbsp;soft&nbsp;clays.</p>

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