基礎の根入れ効果を考慮した応答変位法による液状化地盤の相対密度が杭応力に及ぼす影響の検討 [in Japanese] INVESTIGATION ON EFFECTS OF RELATIVE DENSITY OF LIQUEFIABLE SOIL ON PILE STRESS BASED ON PSEUDO-STATIC ANALYSIS CONSIDERING EMBEDMENT EFFECT OF FOOTING [in Japanese]
Access this Article
Search this Article
To investigate effects of relative density of soil on pile stresses during soil liquefaction, dynamic centrifuge tests were performed on a superstructure-footing model supported by 2x2 piles. Additionally, pseudo-static analyses con-sidering embedment effect of footing were performed to evaluate the pile stresses. The following conclusions were reached: (1) The total earth pressure and the sidewall friction acting on the footing were in phase with the inertial force of superstructure in the loose sand. on the other hand, those were out of phase by 180 degrees with the inertial force in dens sand. (2) The estimated earth pressure and the sidewall friction acting on the footing and bending moment of the pile were in good agreement with the observed ones.
- Journal of structural engineering. B
Journal of structural engineering. B (57B), 101-106, 2011-03-25
Architectural Institute of Japan