2016-08-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/691727摘要：樁基礎係常用之結構基礎型式。過去一些震災經驗顯示土壤液化引致之側向滑移在樁基礎上會產生大的作用力，使得樁基礎發生嚴重的損害。目前國內耐震設計規範對於可能液化之傾斜地盤中的樁基礎，係採用日本道路橋示方書根據阪神地震震害經驗所得之經驗式估算側向流動力，將其施加於樁基礎上予以設計基礎。由於所採用之案例有限，且地盤側向流動化的機制尚未完全明瞭，因此耐震設計規範所建議使用之側向流動力公式的合理性有必要進一步確認，方可確保所設計之樁基礎在土壤發生液化時的安全性又不至於過度保守設計。 基此，本研究利用振動台模型試驗，探討樁基礎在可能液化之傾斜地盤受震過程中所受之作用力的變化歷程，搭配離心機試驗之比較分析及數值模擬，從中求取傾斜地盤在液化過程中所引致之側向流動力，並與國內外文獻之分析方法比較，據以發展合理之側向流動力評估模式，供基礎抗液化工程設計使用。<br> Abstract: Past earthquake events have shown that pile foundations were often damaged due to liquefaction-induced lateral spreading. In seismic design code of Taiwan, following the bridge design code of Japan, equivalent lateral spread loading model is proposed for pile design. These formulas were developed based on only one case analysis of 1995 Japan Kobe earthquake. Therefore, the model needs more validation to have rational and safe design results in liquefaction-resistant foundation design. This study uses the shaking table of the National Center for Research on Earthquake Engineering (NCREE) as well as the large-scale laminar shear box developed by NCREE to perform lg model dynamic tests for investigating the response of a single pile founded in liquefiable inclined soil. The test results are compared with the results of centrifuge tests and numerical simulation. From this study, the influence of soil liquefaction induced lateral spreading on pile foundations can be clarified and a complete and rational lateral spread loading model can be constructed for liquefaction-resistant pile design.樁基礎耐震設計液化側向流動化抗液化工程設計Pile foundationsLiquefactionLateral spreadingLiquefaction-resistant design.