摘要
目的分析砂土中双锚片螺旋锚的工作性能及破坏模式,给出双锚片螺旋锚上拔极限承载力,为指导工程实践提供理论依据.方法通过室内获得实验数据,选定拟合曲线对实验数据拟合,用回归分析的方法进行分析.结果在埋深不变的情况下,变化实验两个锚片的间距,当两个锚片的间距较小时,其极限承载力比单锚片螺旋锚的极限承载力高,但要远远小于两个单锚片螺旋锚极限承载力之和.当两个锚片的间距较大时,其上拔极限承载力与两个单锚片的极限承载力之和相接近.结论可以通过增大锚片直径提高承载力,也可通过增加两锚片的间距提高承载力.有重要的学术价值和广阔的应用前景.
In order to find the critical capacity to resist uplift load of double-blade screw anchor and its behavior in the sand, the paper analyses the data of the test by the method of fitting and regression analysis. We find that, in the same depth, the critical capacity to resist uplift load of double-blade screw anchor is greater than that of the one blade anchor, but much smaller than the total of two single-blade screw anchor. Its critical capacity is close to the total of two single-blade screw anchors when the distance between the two blades is greater. We can conclude that the farther the distance and the diameter of the blades, the greater the critical capacity gets.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
2008年第1期54-57,共4页
Journal of Shenyang Jianzhu University：Natural Science
基金
建设部研究项目(06-K1-22)
