曲线螺旋桩竖向抗拔特性试验研究 |
| |
引用本文: | 吴绍山,屈俊童,屈林河,许展峰,陈慧君. 曲线螺旋桩竖向抗拔特性试验研究[J]. 路基工程, 2018, 0(2): 126-130. DOI: 10.13379/j.issn.1003-8825.2018.02.27 |
| |
作者姓名: | 吴绍山 屈俊童 屈林河 许展峰 陈慧君 |
| |
作者单位: | 云南大学建筑与规划学院, 昆明 650504 |
| |
基金项目: | 昆明市科学基金项目(2015-1-G-01089) |
| |
摘 要: | 曲线螺旋桩是一种新型的抗拔桩。目前,对曲线螺旋桩的抗拔特性还缺乏较为系统的研究,为此,基于室内模型试验,对直线型桩和不同螺旋宽度、厚度和间距的螺旋型桩的抗拔承载力进行了对比试验。结果表明:在同等位移限制条件下,螺旋桩极限抗拔承载力是直线型桩的1.38~2.14倍、螺旋宽度为15 mm是螺旋宽度为10 mm螺旋桩极限抗拔承载力的1.09倍、螺旋厚度为15 mm是螺旋厚度为10 mm螺旋桩的极限抗拔承载力的1.05倍、螺旋间距为50 mm是螺旋间距为100 mm螺旋桩的极限抗拔承载力的1.10倍。
|
关 键 词: | 螺旋桩 竖向抗拔 模型试验 承载机理 |
收稿时间: | 2019-11-11 |
Experimental Study on Vertical Uplift Characteristics of Curved Spiral Piles |
| |
Abstract: | The curved spiral pile is a new type of uplift pile. At present, there is a lack of systematic research on the uplift characteristics of the curved spiral pile. Hence, based on the indoor model test, the paper studies the uplift bearing capacity of the straight line pile and spiral pile under different width, thickness and space. The results show that under the same displacement condition, the ultimate uplift bearing capacity of the spiral pile is 1.38 to 2.14 times of that of the straight line pile, the pile with spiral width of 15 mm is 1.09 times of that of the pile with spiral width of 10 mm, the pile with spiral thickness of 15 mm is 1.05 times of that of the pile with spiral thickness of 10 mm, the pile with spiral space of 50 mm is 1.10 times of that of the pile with spiral space of 100 mm. |
| |
Keywords: | |
本文献已被 CNKI 等数据库收录! |
| 点击此处可从《路基工程》浏览原始摘要信息 |
|
点击此处可从《路基工程》下载免费的PDF全文 |
|