2006-09-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/697661摘要：1999 年9 月21 日集集地震發生以來，由國家地震中心(2000)所召集之大地工程坡地破壞現地調查，共記錄了436 處邊坡破壞，而農委會水保局及林務局(2000)的衛星影像及航照判釋結果，更顯示出多達兩萬餘筆的變異點，地震所導致的邊坡破壞一直為各界所熱切關注，國際上及國內對此一課題亦相當重視。本研究以台灣中部地區自然邊坡為對象，從簡單邊坡受震模型及理論分析為架構，期望將土壤材料動態特性及邊坡受震時動態反應加以考量，並利用邊坡模型振動台試驗研究邊坡之受震行為特性。邊坡模型振動台採用地震記錄及重製土壤試體，模擬邊坡承受地震之行為，記錄邊坡受震時的各項反應，完整呈現邊坡受震反應的行為，藉由試驗結果提供分析模式之檢驗及修正，並討論邊坡受震滑移情形，目的在於建立以位移量定義邊坡破壞並做為邊坡受震穩定評估之依據，此外將與集集地震現地調查資料進行驗證，以期能對邊坡受震行為有更進一步了解，提供未來在地震區之邊坡分析參考。<br> Abstract: After Chi-Chi earthquake, Sep. 21, 1999, the reconnaissance conducted by NCREE (2000) documented 436 slope failure sites. Soil and Water Conservation Bureau and Taiwan Forest Bureau, Council of Agriculture (2000) used aerial photos and satellite images and identified more than 20,000 land variation items. Slope failure caused by earthquake has become an important topic and more researches concerning the responses of slopes under seismic loading are needed. The objective of this research is to establish the assessment model for seismic slope stability based on the displacement and performance of the slope. Both laboratory and large-scale model slope tests have been held using shaking table to understand the seismic slope behavior. Large-scale model slope test has been conducted based on earthquake records and reconstituted specimen to simulate prototype slope behavior during earthquake. Responses as well as the surface movements of the slopes has been monitored and analyzed. Based on the testing results, slope analysis will be performed to simulate slope behavior during earthquake. The displacements analysis and assessment model will be established, and verified using field data collected in Chi-Chi earthquake. The results of this study could provide basic understandings of seismic slope behavior and to evaluate the seismic slope stability based on the displacement performance of the slope, which appears to be more solid and can be monitored. This project is a two-year project; current proposal is the first-year of the project.邊坡破壞振動台模型試驗邊坡受震滑移穩定評估seismic slope failureshaking table model testslope displacementassessment of slope stability