| 嵌岩（软岩）桩轴向荷载传递机理的弹粘塑性分析 |
| |
| 引用本文： | 刘叔灼. 嵌岩（软岩）桩轴向荷载传递机理的弹粘塑性分析[J]. 华南理工大学学报(自然科学版), 1995, 23(3): 66-74 |
| |
| 作者姓名： | 刘叔灼 |
| |
| 作者单位： | 华南理工大学建筑工程系 |
| |
| 摘 要： | 本文采用弹－粘塑性力学模型，用有限元法对设置于软岩中的嵌岩桩轴向荷载传递机理进行了数值分析，以Ａｋａｉ等人对软岩三轴排水蠕变试验得出的关于软岩具有明显速敏性和剪胀性的结构论为基础，结合Ｐｅｒｚｙｎａ理论以及Ｃｌｏｕｇｈ－Ｄｕｎｃａｎ非线性界面单元模拟桩－岩接触面的相互作用，从而作了能反映嵌岩桩桩蠕变沉降性状的岩土力学模型。数据分析结果表明，桩侧阻力是嵌岩桩承载力的主要组成部分；软岩蠕变性的强弱对嵌
|
| 关 键 词： | 桩 弹性 粘塑性 嵌岩桩 载荷传递 轴向载荷 |
ELASTO-VISCOPLASTIC ANALYSIS OF AXIAL LOAD TRANSFER MECHANISM OF SOCKETED PILE IN SOFT ROCK |
| |
| Liu Shuzhuo, Yang Weiguang. ELASTO-VISCOPLASTIC ANALYSIS OF AXIAL LOAD TRANSFER MECHANISM OF SOCKETED PILE IN SOFT ROCK[J]. Journal of South China University of Technology(Natural Science Edition), 1995, 23(3): 66-74 |
| |
| Authors: | Liu Shuzhuo Yang Weiguang |
| |
| Abstract: | The elasto-viscoplastic mechanical model is employed in the numerical analysis of axial load transfer mechanism of socketed pile in soft rock in this paper. Onthe basis of .the conclusion obtained from triaxial drained creep tests to soft rock(tuff)by Ahai. et al., that soft rock has obviously rate sensitive properties and dilatancy,and combined with Perzyna theory as well as Clough-Duncan non-linear interface element, the geotechnical mechanical model which horrors creep behaviour of socketedpile in soft rock is derived.The result of numerical analysis shows that the pile shaftresistance is the main composition of bearing capacity of socketed pile, and the creepof soil rock has influence on the load transfer and pile top settemence of socketed pilein soft rock. |
| |
| Keywords: | s: piles soft rocks elasticity viscoplasticity constitutive equation |
| 本文献已被 CNKI 维普 等数据库收录！ |
