Improving the Bearing capacity of foundations using micropiles

Abstract

This paper explores the effect of micropiles on the bearing capacity of foundations. PLAXIS as a finite element code capable of analyzing soil-structure interaction has been utilized and appropriate material properties and boundary conditions have been defined. The analyses aim to conclude the optimum configuration of micropile in the soil to achieve the maximum bearing capacity. For this purpose, four parameters namely, diameter, distance, length and direction of piles in the soil have been considered and sensitivity analyses have been done on different range to determine the effect of each parameter. The results of analyses show that the correct selection of the micropile parameters can increase the capacity of foundation for loading. It is concluded that the slope of micropile is the most influential factor among other parameters that have been studied.