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頁籤選單縮合
題名 | RIDO程式之最佳化土層參數之探討=Optimization of Soil Parameters for RIDO Program |
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作者 | 冀樹勇; 陳錦清; 王建智; | 書刊名 | 地工技術 |
卷期 | 75 1999.10[民88.10] |
頁次 | 頁61-76 |
分類號 | 441.13 |
關鍵詞 | 深開挖; 最佳化; 反算; Deep excavation; Optimization; Back-analysis; |
語文 | 中文(Chinese) |
中文摘要 | 本文探討最佳化程序在臺北盆地深開挖反算土壤參數上之應用,並結合現有深開 挖分析程式RIDO建立一個最佳化反算整合程式RUIP。文中之最佳化程序採用單純形最佳化 法,以現場壁體變位量測值和RIDO分析求得之壁體變位間之差的平方和為目標函數,配合土 壤不排水剪力強度和水平地盤反力係數隨深度增加之趨勢,以迭代收斂求取符合壁體變位量 測值之土壤參數。研究結果顯示,最佳化反算臺北盆地案例黏土層參數 S □╱□ν ' 約為 0.3,K □ /S □值集中於 50m □至 100m □間,而砂土層參數 K □ /N 值則介於 50t/m □與 200t/m □範圍內。 |
英文摘要 | The application of optimization procedure in back-analysis for soil parameters during deep excavation in Taipei basin is investigated in this paper, and an integrated system RUIP based on RIDO program is developed. Simplex method is adopted as the optimization calculation and the sum of squares of differences between measured wall deflection and calculated wall deflection is used as the objective function to obtain the soil parameters. The results show that the ratio of strength parameter S □ / □ν 'is about 0.3, the ratio, K □ /S □, ranges from 50m □ to 100m □ for Taipei clayey layers obtained from case histories, and the ratio K □ /N of Taipei sandy layers varies from 50t/m □ to 200t/m □. |
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