Recognition of the behaviour of micropiles under the influence of various parameters can help in the most efficient and optimal use of this improvement instrument. The present research conducted multiple static strain-control loading tests with a displacement rate of 10 mm/min and a laboratory program using a large-scale physical modelling device to evaluate various parameters such as the length, diameter, bond radius, and bond skin friction of micropiles in sandy soils with different relative densities. In addition, the load-bearing capacities of bored and driven micropiles were compared and the results demonstrated the effects of each parameter, as well as installation methods on the load-bearing capacity of the micropiles. The results show the significant role of the relative density parameter compared to other parameters in the values of the load-bearing capacity of the micropile. The results of the experiments further revealed that the diameter parameter has an average effect of about 12% more than the length parameter on load-bearing capacity values at different soil densities and the driven installation method can increase the load-bearing capacity up to a maximum of 84% compared to the bored method.

在各种参数影响下识别微堆的行为可以帮助最有效和最佳地使用此改进工具。本研究进行了多种静态应变控制载荷测试，位移速率为10 mm / min，并使用大型物理建模设备进行了实验室程序，以评估各种参数，例如长度，直径，粘结半径和粘结皮肤摩擦力不同相对密度的沙质土壤中的微堆 此外，比较了钻孔和驱动微型桩的承载能力，结果表明了每个参数的影响以及安装方法对微型桩的承载能力的影响。结果表明，相对密度参数与其他参数相比，在微型桩的承载力值中具有重要作用。实验结果进一步表明，在不同土壤密度下，直径参数的平均影响比长度参数大约12％，驱动安装方法可以将最大承载力提高到最大。与无聊的方法相比，占84％。