In case the diameter is less than 250 mm it could be possibly micropile or helical pile and vice versa. If size is small and diameter is a lot less than 250m, it is a micropile. Micropiles are nearly always utilized to improve the weak regions of the existing soil. https://manuelfgffd.blogthisbiz.com/36790411/the-fact-about-micropile-with-good-load-bearing-that-no-one-is-suggesting