In this study, numerical analyses have been performed for a reasonable gravity-type anchorage design. The emphasis is on evaluating the effect of the passive earth pressure for gravity-type anchorages under pullout loading. Three-dimensional FE analyses were performed for different types of bedrock and embedded depths. Based on this study, it is found that the displacement of the gravity-type anchorage decreased with increasing embedded depth due to the increase in the passive resistance in front of the anchorage. It is also found that the resistance due to passive earth pressure in front of the anchorage accounts for approximately 10–30% of the total resistance and thus represents a significant improvement in the prediction of the realistic resistance for gravity-type anchorages subjected to pullout loads.

中文翻译：

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悬索桥重力式锚固上的被动土压力分析

在这项研究中，已经对合理的重力型锚固设计进行了数值分析。重点在于评估被动土压力对拔出载荷下重力型锚固的影响。对不同类型的基岩和埋深进行了三维有限元分析。根据这项研究，发现重力型锚固的位移随着埋深的增加而减小，这是由于锚固前部的被动阻力增加了。还发现，由于锚固前的被动土压力引起的阻力约占总阻力的10％至30％，因此，在预测承受拉拔载荷的重力型锚固的实际阻力时，代表了显着的改进。