With the rapid development of land reclamation, a great amount of buildings are constructed on degree fill. Negative skin friction (NSF) caused by the self-consolidation of dredger fill has a significant influence on the stability of construction. Therefore, centrifuge model tests were conducted to investigate the influence of dredger fills thickness, pile top load, and piles radius on the self-consolidation of dredger fills, piles settlement, and NSF. The results show that pile top load is the main factor controlling the settlement of piles, and the settlement of piles increases with an increase of pile top load. Thickness of dredger fills has significant influence on its self-consolidation. Shaft friction increases with an increase of depth, and the increase rate is much higher when the dredger fills is thicker. Fitting formulas for maximal settlement of piles, maximal NSF, and neutral plane location in the dredger fill were also acquired, providing significant reference to practical engineering.

中文翻译：

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挖泥船填土自固结对桩面负摩阻发展的影响

随着土地复垦的迅速发展，大量的建筑物都是按度填筑的。挖泥船自固结引起的负向皮肤摩擦（NSF）对施工的稳定性有重要影响。因此，进行了离心机模型试验，以研究挖泥船填料厚度，桩顶载荷和桩半径对挖泥船填料自固结，桩沉降和NSF的影响。结果表明，桩顶荷载是控制桩沉降的主要因素，桩沉降随桩顶荷载的增加而增加。挖泥船填土的厚度对其自固结有重要影响。轴摩擦随着深度的增加而增加，并且当挖泥船填充物越厚时，其增加率就越高。