A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigation of liquefaction-induced lateral load on pile group behind quay wall
AbstractThis paper presents the results of a shake-table test on a 2 × 2 pile group behind a quay wall. The main objective is to study the behavior of the pile group under the liquefaction-induced lateral spreading and the liquefied soil pressure exerted on the individual pile in the pile group. The test results are presented and discussed. Significant pile group effect is observed through a comparison of the monotonic bending moments of the individual pile in the pile group. In this regard, a simple finite element model is developed to evaluate the liquefied soil pressure on the individual pile in the pile group, in which, both the uniform and triangular soil pressures are calibrated based on the tested monotonic bending moments of the piles. The liquefied soil pressure on the pile near the quay wall is about twice as much as that on the pile far from the quay wall. Next, the liquefied soil pressure on the individual pile in the pile group is compared to that obtained from the shake-table test on single pile. Further, a parametric study is conducted to investigate the effect of the pile rotational stiffness and the pile diameter on the pile group response. Finally, the concluding remarks are drawn based upon the presented results.
HighlightsBehavior of the soil and 2 × 2 pile group behind quay wall prior to and during lateral spreading is presented.A finite element method is developed to evaluate the uniform and triangular liquefied soil pressure profiles.Two force-based design guidelines including JRA and JSWA are further calibrated.Liquefaction-induced lateral flow soil pressures acting on pile group are compared with that on single pile.Influences of several key factors on elastic behavior of pile group are examined.
Investigation of liquefaction-induced lateral load on pile group behind quay wall
AbstractThis paper presents the results of a shake-table test on a 2 × 2 pile group behind a quay wall. The main objective is to study the behavior of the pile group under the liquefaction-induced lateral spreading and the liquefied soil pressure exerted on the individual pile in the pile group. The test results are presented and discussed. Significant pile group effect is observed through a comparison of the monotonic bending moments of the individual pile in the pile group. In this regard, a simple finite element model is developed to evaluate the liquefied soil pressure on the individual pile in the pile group, in which, both the uniform and triangular soil pressures are calibrated based on the tested monotonic bending moments of the piles. The liquefied soil pressure on the pile near the quay wall is about twice as much as that on the pile far from the quay wall. Next, the liquefied soil pressure on the individual pile in the pile group is compared to that obtained from the shake-table test on single pile. Further, a parametric study is conducted to investigate the effect of the pile rotational stiffness and the pile diameter on the pile group response. Finally, the concluding remarks are drawn based upon the presented results.
HighlightsBehavior of the soil and 2 × 2 pile group behind quay wall prior to and during lateral spreading is presented.A finite element method is developed to evaluate the uniform and triangular liquefied soil pressure profiles.Two force-based design guidelines including JRA and JSWA are further calibrated.Liquefaction-induced lateral flow soil pressures acting on pile group are compared with that on single pile.Influences of several key factors on elastic behavior of pile group are examined.
Investigation of liquefaction-induced lateral load on pile group behind quay wall
Liu, Chunhui (author) / Tang, Liang (author) / Ling, Xianzhang (author) / Deng, Lijun (author) / Su, Lei (author) / Zhang, Xiaoyu (author)
Soil Dynamics and Earthquake Engineering ; 102 ; 56-64
2017-08-25
9 pages
Article (Journal)
Electronic Resource
English
Investigation of liquefaction-induced lateral load on pile group behind quay wall
| British Library Online Contents | 2017
| British Library Online Contents | 2018