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題名 | 應用巢狀分割法求解二次矩可靠度指標之液化機率評估=A New Method of Reliability-Based Liquefaction Probability for Sandy Soils--Using the Knowledge Nested Partition Algorithm |
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作者姓名(中文) | 李雅芬; 紀雲曜; 李德河; | 書刊名 | 中國土木水利工程學刊 |
卷期 | 19:1 2007.03[民96.03] |
頁次 | 頁1-11 |
分類號 | 441.12 |
關鍵詞 | 液化; 機率; 認知巢狀分割法; Hasofer-Lind可靠度指標; Soil liquefaction; Liquefaction probability; Knowledge nested partition algorithm; Hasofer-lind reliability index; |
語文 | 中文(Chinese) |
中文摘要 | 本文以Seed簡易法為液化評估基本模式,首先應用認知巢狀分割方法,以極座標方式表示參數資料空間,建立一種新的、可全域搜尋的可靠度指標搜尋技術,用以評估土層液化機率;其次由360筆國內外液化與不液化SPT案例之評估結果比較,驗證本文方法具正確性;最後以臺灣中部員林地區的土層剖面為案例,除說明利用本文方法進行區域土層液化機率評估程序外,並探討參數變異對液化機率的影響,本文所得的分析結果,可供未來大面積的區域液化評估參考。 |
英文摘要 | This paper employed the knowledge nested partition algorithm to minimize the Hasofer-Lind reliability index. Accordingly, it developed a new probabilistic model which is based upon Seed simplified method for assessing the earthquake induced liquefaction potential of sandy soils. Six major parameters for liquefaction evaluation were expressed using a radial space system. This study used 360 SPT-N based case histories, including liquefied and non-liquefied, to verify the model accuracy. Through the establishment of a liquefaction probability evaluation process, this study examined the variance of parameters that affect the liquefaction potential. Local liquefaction hazard analysis, if having a great amount of field data, could advantage from the model developed in this study. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。