液状化の設計理論と実際 : 群杭基礎を有する地盤の液状化(<小特集>施工過程を考慮した地盤の変形・破壊の予測)

概要

論文の詳細を見る
The aim of the present paper is to investigate a mechanism of damage of pile foundations due to soil liquefaction during earthquake. The three dimensional effective stress based liquefaction analysis (LIQCA) was carried out for the structure-pile-ground system to reproduce a damage of pile foundations which was observed at Kobe during the 1995 Hyogoken Nanbu Earthquake. In the numerical analysis, the effect of axial force variation on the bending stiffness is taken into account. The numerical results of damaged pile are consistent with the results observed after the earthquake. In addition, it was cinfirmed the liquefaction easily occurs near the structures compared with the ground far from the structures.
社団法人地盤工学会の論文
2002-08-01