Underpinning is often a term that is often affiliated with these friction piles. Micropile underpinning is the whole process of small drilled and grouted friction piles. Hollow bars are then put in and pumped packed with a cement grout combination when an anchor is drilled to the grout. On the https://taifudo-bodyguard48269.thezenweb.com/new-step-by-step-map-for-service-68309873