查詢結果分析
來源資料
頁籤選單縮合
題 名 | 大應變壓密沉陷分析=Analysis of Large Strain Consolidation Settlements |
---|---|
作 者 | 馮道偉; 黃雲漢; | 書刊名 | 中原學報 |
卷 期 | 27:1 1999.03[民88.03] |
頁 次 | 頁35-40 |
分類號 | 441.12 |
關鍵詞 | 粘土; 壓密; 大應變; 沉陷分析; Clay; Consolidation; Large strain settlement analysis; |
語 文 | 中文(Chinese) |
中文摘要 | 粘土具非線性的力學性質,但傳統的壓密理論及現今的數值分析模式假設土壤的 力學性質為線性。在小應變壓密時此一假設不致造成過大的誤差,但在大應變壓密時有必要 在分析時考慮粘土滲透係數及體積壓縮係數隨孔隙比減少而變化之特性。 本文提出在 FLAC 沉陷分析中考慮粘土非線性性質的方法,並以之分析實驗室壓密試驗及預測現地厚土層之主 要壓密及二次壓縮沉陷。分析結果顯示本文提出的方法現有的方法精準,尤其本文提出的方 法可計算長期二次壓縮沉陷。 |
英文摘要 | It is generally known that clays possess nonlinear mechanical properties. However, traditional theory of consolidation and numerical approach assume linear mechanical properties for clays. In calculation of small strain consolidation, this assumption would not induce serious error. But it is necessary to consider variations of permeability and compressibility with the decrease in void ratio during large strain consolidation. This paper presents an approach in using the FLAC computer program with non-linear soil proerties. The approach is used to analyze laboratory consolidation curves and to predict in-situ settlement curve, including both the primary consolidation and the secondary compression stages. Results of this study show that the approach presented is more accurate than the conventional FLAC analysis. |
本系統中英文摘要資訊取自各篇刊載內容。