|
|||||
|
|
| 人工挖孔扩底桩轴向静载荷试验研究 | |
| 引用本文： | 侯超群,王晓谋,苏庆国. 人工挖孔扩底桩轴向静载荷试验研究[J]. 合肥工业大学学报(自然科学版), 2006, 29(12): 1552-1555 |
| 作者姓名： | 侯超群 王晓谋 苏庆国 |
| 作者单位： | 1. 合肥工业大学,资源与环境工程学院,安徽,合肥,230009;长安大学,公路学院,陕西,西安,710064 2. 长安大学,公路学院,陕西,西安,710064 3. 山东省济宁公路勘察设计研究院,山东,济宁,272013 |
| 摘 要： | 依据河南济源人工挖孔扩底桩现场载荷试验,分析了人工挖孔扩底桩桩侧摩阻力、桩端阻力的发挥特征及其荷载-沉降规律,研究了桩侧阻力和桩端阻力随荷载增加的变化规律以及扩大端临空面对桩侧摩阻力的影响。试验结果表明:在坚实土层中选用扩底桩可有效提高单桩承载能力;桩侧摩阻力的作用不容忽视;承载力计算时应考虑护壁的厚度。 |
| 关 键 词： | 人工挖孔扩底桩 载荷试验 桩侧摩阻力 桩端阻力 |
| 文章编号： | 1003-5060(2006)12-1552-04 |
| 修稿时间： | 2005-12-08 |
Static axial load test on manually excavated belled piles |
|
| HOU Chao-qun,WANG Xiao-mou,SU Qing-guo. Static axial load test on manually excavated belled piles[J]. Journal of Hefei University of Technology(Natural Science), 2006, 29(12): 1552-1555 | |
| Authors: | HOU Chao-qun WANG Xiao-mou SU Qing-guo |
| Abstract: | The static axial load test on manually excavated belled piles in the city of Jiyuan,Henan Province is carried out.The characteristics of the friction resistance along the test pile and the end resistance of the pile and the load-settlement relationship of the test pile are analyzed.Variation of the two kinds of resistance with the load's increase and the effect of the bellend free-face on the side friction resistance of the pile are studied.The results show that manually excavated belled piles can increase the bearing capacity of single piles in the compact layer,and that the pile side friction resistance and the effect of the protection wall should not be ignored in the bearing capacity calculation. |
| Keywords: | manually excavated belled pile load test friction resistance along the pile end resistance of the pile |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |