沉砂滞洪池之应力分析与参数研究AStressAnalysisandParametrical.PDF

沉砂滯洪池之應力分析與參數研究  (2) 林群富 馮正一 摘 要 本研究以有限差分法 FLAC 程式進行二維沉砂滯洪池應力分析與參數研究，並定義兩個基 線案例做為模擬分析的基準。本研究假設沉砂滯洪池啟用後水位抬升，故對地下水進行滲流分 析，並將沉砂滯洪池頂板受車輛載重納入考量，一併進行應力分析。本研究針對各不同土壤與 構造物條件進行參數研究，探討在不同條件下結構體的應力差異，提供水土保持工程設計者參 考使用。 關鍵字：( 應力分析、 FLAC 、沉砂滯洪池、界面元素) A Stress Analysis and Parametrical Study for Sediment and Retention Ponds Qun-fu Lin (1) Zheng-yi Feng (2*) Graduate Student(1) ,Professor(2) Department of Soil and Water Conservation, National Chung Hsing University, Taichung 402, Taiwan, R.O.C. ABSTRACT This study applied the finite difference software, FLAC, to perform stress analyses and parametrical study of the two-dimensional sediment and retention ponds we assumed. Two baseline cases were defined and compared among the parametrical cases. This study assumed that the water rises after completion of the retention ponds; therefore, seepage analyses were carried out. Traffic loading was applied for part of boxed retention ponds for comparison. This study accomplished parametrical study for the various conditions of soils and structural members. We discussed the differences in stresses among the varied conditions to be a reference in soil and water conservation engineering. (Keywords ：Stress analysis, FLAC, sediment and retention pond, interface element) 國立中興大學水土保持學系研究生 (2)國立中興大學水土保持學系教授 (通訊作者 e-mail ：tonyfeng@nchu.edu.tw) 189 水土保持學報 44(3) : 189 – 200 (2012) Journal of Soil and Water Conservation , 43 (1) : 189 - 200 (2012) 本研究將針對各不同土壤與構造物條 前言 件進行