楔形樁的變形研究

土木工程論文編號:TM147  論文字數:16405,頁數:44

目  錄
第一章 緒論 .....1
1.1 引言.....1
1.2 樁的類型.2
   1.2.1 按照承載性狀分類.....2
    1.2.2 按樁的使用功能分類...2
    1.2.3 按樁材分類.....3
    1.2.4 按成樁方法分類.3
    1.2.5 按樁的幾何特性分類...4
1.3 樁型的選擇.....4
1.4 楔形樁的主要特征.....7
1.5 楔形樁國內外研究現狀.8
1.6 本文研究的主要問題...9
第二章 楔形樁的變形研究 ...10
2.1 楔形樁的沉降..10
    2.1.1楔形樁的沉降計算.....10
    2.1.2楔形樁的沉降特點....11
2.2 國家和地方規范對建筑物變形允許值的規定14
    2.2.1《建筑地基基礎設計規范》(GB50007—2002)14
    2.2.2 浙江省標準《地基基礎設計規范》(ＤＢ33/1001-2003)..16
2.3 楔形樁的變形屈曲....17
第三章 楔形樁的試驗成果與國內外部分工程應用....24
3.1 楔形剛性樁復合地基在工程中的應用24
3.2 楔形樁在天津地區的試驗研究25
3.3 楔形樁對土體凍脹性和融沉性的改良作用..27
3.4 楔形樁在雜填土、粉土、粉細砂中的試驗28
3.5 楔形樁在粘土中的試驗....29
3.6 粉質粘土中的現場試驗....30
3.7 楔形樁國外的試驗..32
3.8 以上各種試驗結果分析....33
3.9 楔形樁的應用情況介紹....34
第四章 我國楔形樁復合地基礎的應用前景 ..36
第五章 結論與展望..37
5.1 結論..37
5.2 展望..37
參考文獻..39
致謝41

摘要
    本文在前人對楔形樁的試驗研究及理論研究的基礎上，對其工作性狀及其在各類土層中的工作性能展開了若干研究，主要包括沉降的理論分析、楔形樁在各類土層中的試驗結果分析和楔形樁的應用實例分析等，對于國家和地方規范對建筑物變形允許值的有關規定也有介紹。
 通過收集的歷年來前人對楔形樁的試驗結果和工程應用實例，對楔形樁的研究和應用情況進行了較為系統的總結和分析，尤其對楔形樁的變形進行了較為深入的分析對比，從而通過研究分析得出楔形樁是一種優越的樁型,相同體積的情況下比普通樁有更大的承載性能和更好的抗沉降性能，且在相同的工程地質條件下更為經濟，值得推廣應用。
 
關鍵詞：楔形樁；工作性狀；沉降研究；變形屈曲；工程實例；性能優越性。

Abstract
     Base on the predecessors' research on the tapered piles, this article carried out a number of studies about the performance and the behavior of the the tapered piles. It is the theoretical analysis of settlement、the analysis of test results and the analysis of the applications constituted the main idea of this article. In addition,the national and local Code about the deformation of buildings were also introduced in this article.
     Through the collection of the predecessors' research on the tapered piles and the examples of Applications, the summary and analysis of the current situation of tapered piles' research and application were systematically and successfully done within this article. Especially, the depth comparative analysis of the tapered piles' deformation was done within this paper. Through research and analysis, understand that this kind of pile have a better Bearing Capacity and Anti-settlement properties than the common piles in the situation of equal volume and equal Engineering Geological Conditions. And we can get the construction done more economically by using tapered piles. So, at last, we can say that the application of the tapered piles should be promoted.

Keywords : tapered pile; service performance; settlement; deformation; the superiority of performance.